diff --git a/codegen/Crm/Objects/Emails/Api/BasicApi.php b/codegen/Crm/Objects/Emails/Api/BasicApi.php
index 7964f066..88007ede 100644
--- a/codegen/Crm/Objects/Emails/Api/BasicApi.php
+++ b/codegen/Crm/Objects/Emails/Api/BasicApi.php
@@ -16,7 +16,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -69,6 +69,25 @@ class BasicApi
      */
     protected $hostIndex;
 
+    /** @var string[] $contentTypes **/
+    public const contentTypes = [
+        'archive' => [
+            'application/json',
+        ],
+        'create' => [
+            'application/json',
+        ],
+        'getById' => [
+            'application/json',
+        ],
+        'getPage' => [
+            'application/json',
+        ],
+        'update' => [
+            'application/json',
+        ],
+    ];
+
     /**
      * @param ClientInterface $client
      * @param Configuration   $config
@@ -121,14 +140,15 @@ public function getConfig()
      * Archive
      *
      * @param  string $email_id email_id (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['archive'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Emails\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Emails\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return void
      */
-    public function archive($email_id)
+    public function archive($email_id, string $contentType = self::contentTypes['archive'][0])
     {
-        $this->archiveWithHttpInfo($email_id);
+        $this->archiveWithHttpInfo($email_id, $contentType);
     }
 
     /**
@@ -137,14 +157,15 @@ public function archive($email_id)
      * Archive
      *
      * @param  string $email_id (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['archive'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Emails\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Emails\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return array of null, HTTP status code, HTTP response headers (array of strings)
      */
-    public function archiveWithHttpInfo($email_id)
+    public function archiveWithHttpInfo($email_id, string $contentType = self::contentTypes['archive'][0])
     {
-        $request = $this->archiveRequest($email_id);
+        $request = $this->archiveRequest($email_id, $contentType);
 
         try {
             $options = $this->createHttpClientOption();
@@ -204,13 +225,14 @@ public function archiveWithHttpInfo($email_id)
      * Archive
      *
      * @param  string $email_id (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['archive'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function archiveAsync($email_id)
+    public function archiveAsync($email_id, string $contentType = self::contentTypes['archive'][0])
     {
-        return $this->archiveAsyncWithHttpInfo($email_id)
+        return $this->archiveAsyncWithHttpInfo($email_id, $contentType)
             ->then(
                 function ($response) {
                     return $response[0];
@@ -224,14 +246,15 @@ function ($response) {
      * Archive
      *
      * @param  string $email_id (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['archive'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function archiveAsyncWithHttpInfo($email_id)
+    public function archiveAsyncWithHttpInfo($email_id, string $contentType = self::contentTypes['archive'][0])
     {
         $returnType = '';
-        $request = $this->archiveRequest($email_id);
+        $request = $this->archiveRequest($email_id, $contentType);
 
         return $this->client
             ->sendAsync($request, $this->createHttpClientOption())
@@ -260,12 +283,14 @@ function ($exception) {
      * Create request for operation 'archive'
      *
      * @param  string $email_id (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['archive'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Psr7\Request
      */
-    public function archiveRequest($email_id)
+    public function archiveRequest($email_id, string $contentType = self::contentTypes['archive'][0])
     {
+
         // verify the required parameter 'email_id' is set
         if ($email_id === null || (is_array($email_id) && count($email_id) === 0)) {
             throw new \InvalidArgumentException(
@@ -273,6 +298,7 @@ public function archiveRequest($email_id)
             );
         }
 
+
         $resourcePath = '/crm/v3/objects/emails/{emailId}';
         $formParams = [];
         $queryParams = [];
@@ -292,16 +318,11 @@ public function archiveRequest($email_id)
         }
 
 
-        if ($multipart) {
-            $headers = $this->headerSelector->selectHeadersForMultipart(
-                ['*/*']
-            );
-        } else {
-            $headers = $this->headerSelector->selectHeaders(
-                ['*/*'],
-                []
-            );
-        }
+        $headers = $this->headerSelector->selectHeaders(
+            ['*/*', ],
+            $contentType,
+            $multipart
+        );
 
         // for model (json/xml)
         if (count($formParams) > 0) {
@@ -319,9 +340,9 @@ public function archiveRequest($email_id)
                 // for HTTP post (form)
                 $httpBody = new MultipartStream($multipartContents);
 
-            } elseif ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode($formParams);
-
+            } elseif (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the form parameters
+                $httpBody = \GuzzleHttp\Utils::jsonEncode($formParams);
             } else {
                 // for HTTP post (form)
                 $httpBody = ObjectSerializer::buildQuery($formParams);
@@ -344,10 +365,11 @@ public function archiveRequest($email_id)
             $headers
         );
 
+        $operationHost = $this->config->getHost();
         $query = ObjectSerializer::buildQuery($queryParams);
         return new Request(
             'DELETE',
-            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
+            $operationHost . $resourcePath . ($query ? "?{$query}" : ''),
             $headers,
             $httpBody
         );
@@ -359,14 +381,15 @@ public function archiveRequest($email_id)
      * Create
      *
      * @param  \HubSpot\Client\Crm\Objects\Emails\Model\SimplePublicObjectInputForCreate $simple_public_object_input_for_create simple_public_object_input_for_create (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['create'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Emails\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Emails\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return \HubSpot\Client\Crm\Objects\Emails\Model\SimplePublicObject|\HubSpot\Client\Crm\Objects\Emails\Model\Error
      */
-    public function create($simple_public_object_input_for_create)
+    public function create($simple_public_object_input_for_create, string $contentType = self::contentTypes['create'][0])
     {
-        list($response) = $this->createWithHttpInfo($simple_public_object_input_for_create);
+        list($response) = $this->createWithHttpInfo($simple_public_object_input_for_create, $contentType);
         return $response;
     }
 
@@ -376,14 +399,15 @@ public function create($simple_public_object_input_for_create)
      * Create
      *
      * @param  \HubSpot\Client\Crm\Objects\Emails\Model\SimplePublicObjectInputForCreate $simple_public_object_input_for_create (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['create'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Emails\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Emails\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return array of \HubSpot\Client\Crm\Objects\Emails\Model\SimplePublicObject|\HubSpot\Client\Crm\Objects\Emails\Model\Error, HTTP status code, HTTP response headers (array of strings)
      */
-    public function createWithHttpInfo($simple_public_object_input_for_create)
+    public function createWithHttpInfo($simple_public_object_input_for_create, string $contentType = self::contentTypes['create'][0])
     {
-        $request = $this->createRequest($simple_public_object_input_for_create);
+        $request = $this->createRequest($simple_public_object_input_for_create, $contentType);
 
         try {
             $options = $this->createHttpClientOption();
@@ -427,7 +451,19 @@ public function createWithHttpInfo($simple_public_object_input_for_create)
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Emails\Model\SimplePublicObject' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -442,7 +478,19 @@ public function createWithHttpInfo($simple_public_object_input_for_create)
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Emails\Model\Error' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -459,7 +507,19 @@ public function createWithHttpInfo($simple_public_object_input_for_create)
             } else {
                 $content = (string) $response->getBody();
                 if ($returnType !== 'string') {
-                    $content = json_decode($content);
+                    try {
+                        $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                    } catch (\JsonException $exception) {
+                        throw new ApiException(
+                            sprintf(
+                                'Error JSON decoding server response (%s)',
+                                $request->getUri()
+                            ),
+                            $statusCode,
+                            $response->getHeaders(),
+                            $content
+                        );
+                    }
                 }
             }
 
@@ -498,13 +558,14 @@ public function createWithHttpInfo($simple_public_object_input_for_create)
      * Create
      *
      * @param  \HubSpot\Client\Crm\Objects\Emails\Model\SimplePublicObjectInputForCreate $simple_public_object_input_for_create (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['create'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function createAsync($simple_public_object_input_for_create)
+    public function createAsync($simple_public_object_input_for_create, string $contentType = self::contentTypes['create'][0])
     {
-        return $this->createAsyncWithHttpInfo($simple_public_object_input_for_create)
+        return $this->createAsyncWithHttpInfo($simple_public_object_input_for_create, $contentType)
             ->then(
                 function ($response) {
                     return $response[0];
@@ -518,14 +579,15 @@ function ($response) {
      * Create
      *
      * @param  \HubSpot\Client\Crm\Objects\Emails\Model\SimplePublicObjectInputForCreate $simple_public_object_input_for_create (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['create'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function createAsyncWithHttpInfo($simple_public_object_input_for_create)
+    public function createAsyncWithHttpInfo($simple_public_object_input_for_create, string $contentType = self::contentTypes['create'][0])
     {
         $returnType = '\HubSpot\Client\Crm\Objects\Emails\Model\SimplePublicObject';
-        $request = $this->createRequest($simple_public_object_input_for_create);
+        $request = $this->createRequest($simple_public_object_input_for_create, $contentType);
 
         return $this->client
             ->sendAsync($request, $this->createHttpClientOption())
@@ -567,12 +629,14 @@ function ($exception) {
      * Create request for operation 'create'
      *
      * @param  \HubSpot\Client\Crm\Objects\Emails\Model\SimplePublicObjectInputForCreate $simple_public_object_input_for_create (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['create'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Psr7\Request
      */
-    public function createRequest($simple_public_object_input_for_create)
+    public function createRequest($simple_public_object_input_for_create, string $contentType = self::contentTypes['create'][0])
     {
+
         // verify the required parameter 'simple_public_object_input_for_create' is set
         if ($simple_public_object_input_for_create === null || (is_array($simple_public_object_input_for_create) && count($simple_public_object_input_for_create) === 0)) {
             throw new \InvalidArgumentException(
@@ -580,6 +644,7 @@ public function createRequest($simple_public_object_input_for_create)
             );
         }
 
+
         $resourcePath = '/crm/v3/objects/emails';
         $formParams = [];
         $queryParams = [];
@@ -591,21 +656,17 @@ public function createRequest($simple_public_object_input_for_create)
 
 
 
-        if ($multipart) {
-            $headers = $this->headerSelector->selectHeadersForMultipart(
-                ['application/json', '*/*']
-            );
-        } else {
-            $headers = $this->headerSelector->selectHeaders(
-                ['application/json', '*/*'],
-                ['application/json']
-            );
-        }
+        $headers = $this->headerSelector->selectHeaders(
+            ['application/json', '*/*', ],
+            $contentType,
+            $multipart
+        );
 
         // for model (json/xml)
         if (isset($simple_public_object_input_for_create)) {
-            if ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode(ObjectSerializer::sanitizeForSerialization($simple_public_object_input_for_create));
+            if (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the body
+                $httpBody = \GuzzleHttp\Utils::jsonEncode(ObjectSerializer::sanitizeForSerialization($simple_public_object_input_for_create));
             } else {
                 $httpBody = $simple_public_object_input_for_create;
             }
@@ -624,9 +685,9 @@ public function createRequest($simple_public_object_input_for_create)
                 // for HTTP post (form)
                 $httpBody = new MultipartStream($multipartContents);
 
-            } elseif ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode($formParams);
-
+            } elseif (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the form parameters
+                $httpBody = \GuzzleHttp\Utils::jsonEncode($formParams);
             } else {
                 // for HTTP post (form)
                 $httpBody = ObjectSerializer::buildQuery($formParams);
@@ -649,10 +710,11 @@ public function createRequest($simple_public_object_input_for_create)
             $headers
         );
 
+        $operationHost = $this->config->getHost();
         $query = ObjectSerializer::buildQuery($queryParams);
         return new Request(
             'POST',
-            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
+            $operationHost . $resourcePath . ($query ? "?{$query}" : ''),
             $headers,
             $httpBody
         );
@@ -669,14 +731,15 @@ public function createRequest($simple_public_object_input_for_create)
      * @param  string[] $associations A comma separated list of object types to retrieve associated IDs for. If any of the specified associations do not exist, they will be ignored. (optional)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
      * @param  string $id_property The name of a property whose values are unique for this object type (optional)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['getById'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Emails\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Emails\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return \HubSpot\Client\Crm\Objects\Emails\Model\SimplePublicObjectWithAssociations|\HubSpot\Client\Crm\Objects\Emails\Model\Error
      */
-    public function getById($email_id, $properties = null, $properties_with_history = null, $associations = null, $archived = false, $id_property = null)
+    public function getById($email_id, $properties = null, $properties_with_history = null, $associations = null, $archived = false, $id_property = null, string $contentType = self::contentTypes['getById'][0])
     {
-        list($response) = $this->getByIdWithHttpInfo($email_id, $properties, $properties_with_history, $associations, $archived, $id_property);
+        list($response) = $this->getByIdWithHttpInfo($email_id, $properties, $properties_with_history, $associations, $archived, $id_property, $contentType);
         return $response;
     }
 
@@ -691,14 +754,15 @@ public function getById($email_id, $properties = null, $properties_with_history
      * @param  string[] $associations A comma separated list of object types to retrieve associated IDs for. If any of the specified associations do not exist, they will be ignored. (optional)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
      * @param  string $id_property The name of a property whose values are unique for this object type (optional)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['getById'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Emails\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Emails\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return array of \HubSpot\Client\Crm\Objects\Emails\Model\SimplePublicObjectWithAssociations|\HubSpot\Client\Crm\Objects\Emails\Model\Error, HTTP status code, HTTP response headers (array of strings)
      */
-    public function getByIdWithHttpInfo($email_id, $properties = null, $properties_with_history = null, $associations = null, $archived = false, $id_property = null)
+    public function getByIdWithHttpInfo($email_id, $properties = null, $properties_with_history = null, $associations = null, $archived = false, $id_property = null, string $contentType = self::contentTypes['getById'][0])
     {
-        $request = $this->getByIdRequest($email_id, $properties, $properties_with_history, $associations, $archived, $id_property);
+        $request = $this->getByIdRequest($email_id, $properties, $properties_with_history, $associations, $archived, $id_property, $contentType);
 
         try {
             $options = $this->createHttpClientOption();
@@ -742,7 +806,19 @@ public function getByIdWithHttpInfo($email_id, $properties = null, $properties_w
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Emails\Model\SimplePublicObjectWithAssociations' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -757,7 +833,19 @@ public function getByIdWithHttpInfo($email_id, $properties = null, $properties_w
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Emails\Model\Error' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -774,7 +862,19 @@ public function getByIdWithHttpInfo($email_id, $properties = null, $properties_w
             } else {
                 $content = (string) $response->getBody();
                 if ($returnType !== 'string') {
-                    $content = json_decode($content);
+                    try {
+                        $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                    } catch (\JsonException $exception) {
+                        throw new ApiException(
+                            sprintf(
+                                'Error JSON decoding server response (%s)',
+                                $request->getUri()
+                            ),
+                            $statusCode,
+                            $response->getHeaders(),
+                            $content
+                        );
+                    }
                 }
             }
 
@@ -818,13 +918,14 @@ public function getByIdWithHttpInfo($email_id, $properties = null, $properties_w
      * @param  string[] $associations A comma separated list of object types to retrieve associated IDs for. If any of the specified associations do not exist, they will be ignored. (optional)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
      * @param  string $id_property The name of a property whose values are unique for this object type (optional)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['getById'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function getByIdAsync($email_id, $properties = null, $properties_with_history = null, $associations = null, $archived = false, $id_property = null)
+    public function getByIdAsync($email_id, $properties = null, $properties_with_history = null, $associations = null, $archived = false, $id_property = null, string $contentType = self::contentTypes['getById'][0])
     {
-        return $this->getByIdAsyncWithHttpInfo($email_id, $properties, $properties_with_history, $associations, $archived, $id_property)
+        return $this->getByIdAsyncWithHttpInfo($email_id, $properties, $properties_with_history, $associations, $archived, $id_property, $contentType)
             ->then(
                 function ($response) {
                     return $response[0];
@@ -843,14 +944,15 @@ function ($response) {
      * @param  string[] $associations A comma separated list of object types to retrieve associated IDs for. If any of the specified associations do not exist, they will be ignored. (optional)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
      * @param  string $id_property The name of a property whose values are unique for this object type (optional)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['getById'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function getByIdAsyncWithHttpInfo($email_id, $properties = null, $properties_with_history = null, $associations = null, $archived = false, $id_property = null)
+    public function getByIdAsyncWithHttpInfo($email_id, $properties = null, $properties_with_history = null, $associations = null, $archived = false, $id_property = null, string $contentType = self::contentTypes['getById'][0])
     {
         $returnType = '\HubSpot\Client\Crm\Objects\Emails\Model\SimplePublicObjectWithAssociations';
-        $request = $this->getByIdRequest($email_id, $properties, $properties_with_history, $associations, $archived, $id_property);
+        $request = $this->getByIdRequest($email_id, $properties, $properties_with_history, $associations, $archived, $id_property, $contentType);
 
         return $this->client
             ->sendAsync($request, $this->createHttpClientOption())
@@ -897,12 +999,14 @@ function ($exception) {
      * @param  string[] $associations A comma separated list of object types to retrieve associated IDs for. If any of the specified associations do not exist, they will be ignored. (optional)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
      * @param  string $id_property The name of a property whose values are unique for this object type (optional)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['getById'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Psr7\Request
      */
-    public function getByIdRequest($email_id, $properties = null, $properties_with_history = null, $associations = null, $archived = false, $id_property = null)
+    public function getByIdRequest($email_id, $properties = null, $properties_with_history = null, $associations = null, $archived = false, $id_property = null, string $contentType = self::contentTypes['getById'][0])
     {
+
         // verify the required parameter 'email_id' is set
         if ($email_id === null || (is_array($email_id) && count($email_id) === 0)) {
             throw new \InvalidArgumentException(
@@ -910,6 +1014,12 @@ public function getByIdRequest($email_id, $properties = null, $properties_with_h
             );
         }
 
+
+
+
+
+
+
         $resourcePath = '/crm/v3/objects/emails/{emailId}';
         $formParams = [];
         $queryParams = [];
@@ -974,16 +1084,11 @@ public function getByIdRequest($email_id, $properties = null, $properties_with_h
         }
 
 
-        if ($multipart) {
-            $headers = $this->headerSelector->selectHeadersForMultipart(
-                ['application/json', '*/*']
-            );
-        } else {
-            $headers = $this->headerSelector->selectHeaders(
-                ['application/json', '*/*'],
-                []
-            );
-        }
+        $headers = $this->headerSelector->selectHeaders(
+            ['application/json', '*/*', ],
+            $contentType,
+            $multipart
+        );
 
         // for model (json/xml)
         if (count($formParams) > 0) {
@@ -1001,9 +1106,9 @@ public function getByIdRequest($email_id, $properties = null, $properties_with_h
                 // for HTTP post (form)
                 $httpBody = new MultipartStream($multipartContents);
 
-            } elseif ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode($formParams);
-
+            } elseif (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the form parameters
+                $httpBody = \GuzzleHttp\Utils::jsonEncode($formParams);
             } else {
                 // for HTTP post (form)
                 $httpBody = ObjectSerializer::buildQuery($formParams);
@@ -1026,10 +1131,11 @@ public function getByIdRequest($email_id, $properties = null, $properties_with_h
             $headers
         );
 
+        $operationHost = $this->config->getHost();
         $query = ObjectSerializer::buildQuery($queryParams);
         return new Request(
             'GET',
-            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
+            $operationHost . $resourcePath . ($query ? "?{$query}" : ''),
             $headers,
             $httpBody
         );
@@ -1046,14 +1152,15 @@ public function getByIdRequest($email_id, $properties = null, $properties_with_h
      * @param  string[] $properties_with_history A comma separated list of the properties to be returned along with their history of previous values. If any of the specified properties are not present on the requested object(s), they will be ignored. Usage of this parameter will reduce the maximum number of objects that can be read by a single request. (optional)
      * @param  string[] $associations A comma separated list of object types to retrieve associated IDs for. If any of the specified associations do not exist, they will be ignored. (optional)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['getPage'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Emails\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Emails\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return \HubSpot\Client\Crm\Objects\Emails\Model\CollectionResponseSimplePublicObjectWithAssociationsForwardPaging|\HubSpot\Client\Crm\Objects\Emails\Model\Error
      */
-    public function getPage($limit = 10, $after = null, $properties = null, $properties_with_history = null, $associations = null, $archived = false)
+    public function getPage($limit = 10, $after = null, $properties = null, $properties_with_history = null, $associations = null, $archived = false, string $contentType = self::contentTypes['getPage'][0])
     {
-        list($response) = $this->getPageWithHttpInfo($limit, $after, $properties, $properties_with_history, $associations, $archived);
+        list($response) = $this->getPageWithHttpInfo($limit, $after, $properties, $properties_with_history, $associations, $archived, $contentType);
         return $response;
     }
 
@@ -1068,14 +1175,15 @@ public function getPage($limit = 10, $after = null, $properties = null, $propert
      * @param  string[] $properties_with_history A comma separated list of the properties to be returned along with their history of previous values. If any of the specified properties are not present on the requested object(s), they will be ignored. Usage of this parameter will reduce the maximum number of objects that can be read by a single request. (optional)
      * @param  string[] $associations A comma separated list of object types to retrieve associated IDs for. If any of the specified associations do not exist, they will be ignored. (optional)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['getPage'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Emails\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Emails\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return array of \HubSpot\Client\Crm\Objects\Emails\Model\CollectionResponseSimplePublicObjectWithAssociationsForwardPaging|\HubSpot\Client\Crm\Objects\Emails\Model\Error, HTTP status code, HTTP response headers (array of strings)
      */
-    public function getPageWithHttpInfo($limit = 10, $after = null, $properties = null, $properties_with_history = null, $associations = null, $archived = false)
+    public function getPageWithHttpInfo($limit = 10, $after = null, $properties = null, $properties_with_history = null, $associations = null, $archived = false, string $contentType = self::contentTypes['getPage'][0])
     {
-        $request = $this->getPageRequest($limit, $after, $properties, $properties_with_history, $associations, $archived);
+        $request = $this->getPageRequest($limit, $after, $properties, $properties_with_history, $associations, $archived, $contentType);
 
         try {
             $options = $this->createHttpClientOption();
@@ -1119,7 +1227,19 @@ public function getPageWithHttpInfo($limit = 10, $after = null, $properties = nu
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Emails\Model\CollectionResponseSimplePublicObjectWithAssociationsForwardPaging' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -1134,7 +1254,19 @@ public function getPageWithHttpInfo($limit = 10, $after = null, $properties = nu
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Emails\Model\Error' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -1151,7 +1283,19 @@ public function getPageWithHttpInfo($limit = 10, $after = null, $properties = nu
             } else {
                 $content = (string) $response->getBody();
                 if ($returnType !== 'string') {
-                    $content = json_decode($content);
+                    try {
+                        $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                    } catch (\JsonException $exception) {
+                        throw new ApiException(
+                            sprintf(
+                                'Error JSON decoding server response (%s)',
+                                $request->getUri()
+                            ),
+                            $statusCode,
+                            $response->getHeaders(),
+                            $content
+                        );
+                    }
                 }
             }
 
@@ -1195,13 +1339,14 @@ public function getPageWithHttpInfo($limit = 10, $after = null, $properties = nu
      * @param  string[] $properties_with_history A comma separated list of the properties to be returned along with their history of previous values. If any of the specified properties are not present on the requested object(s), they will be ignored. Usage of this parameter will reduce the maximum number of objects that can be read by a single request. (optional)
      * @param  string[] $associations A comma separated list of object types to retrieve associated IDs for. If any of the specified associations do not exist, they will be ignored. (optional)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['getPage'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function getPageAsync($limit = 10, $after = null, $properties = null, $properties_with_history = null, $associations = null, $archived = false)
+    public function getPageAsync($limit = 10, $after = null, $properties = null, $properties_with_history = null, $associations = null, $archived = false, string $contentType = self::contentTypes['getPage'][0])
     {
-        return $this->getPageAsyncWithHttpInfo($limit, $after, $properties, $properties_with_history, $associations, $archived)
+        return $this->getPageAsyncWithHttpInfo($limit, $after, $properties, $properties_with_history, $associations, $archived, $contentType)
             ->then(
                 function ($response) {
                     return $response[0];
@@ -1220,14 +1365,15 @@ function ($response) {
      * @param  string[] $properties_with_history A comma separated list of the properties to be returned along with their history of previous values. If any of the specified properties are not present on the requested object(s), they will be ignored. Usage of this parameter will reduce the maximum number of objects that can be read by a single request. (optional)
      * @param  string[] $associations A comma separated list of object types to retrieve associated IDs for. If any of the specified associations do not exist, they will be ignored. (optional)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['getPage'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function getPageAsyncWithHttpInfo($limit = 10, $after = null, $properties = null, $properties_with_history = null, $associations = null, $archived = false)
+    public function getPageAsyncWithHttpInfo($limit = 10, $after = null, $properties = null, $properties_with_history = null, $associations = null, $archived = false, string $contentType = self::contentTypes['getPage'][0])
     {
         $returnType = '\HubSpot\Client\Crm\Objects\Emails\Model\CollectionResponseSimplePublicObjectWithAssociationsForwardPaging';
-        $request = $this->getPageRequest($limit, $after, $properties, $properties_with_history, $associations, $archived);
+        $request = $this->getPageRequest($limit, $after, $properties, $properties_with_history, $associations, $archived, $contentType);
 
         return $this->client
             ->sendAsync($request, $this->createHttpClientOption())
@@ -1274,13 +1420,21 @@ function ($exception) {
      * @param  string[] $properties_with_history A comma separated list of the properties to be returned along with their history of previous values. If any of the specified properties are not present on the requested object(s), they will be ignored. Usage of this parameter will reduce the maximum number of objects that can be read by a single request. (optional)
      * @param  string[] $associations A comma separated list of object types to retrieve associated IDs for. If any of the specified associations do not exist, they will be ignored. (optional)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['getPage'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Psr7\Request
      */
-    public function getPageRequest($limit = 10, $after = null, $properties = null, $properties_with_history = null, $associations = null, $archived = false)
+    public function getPageRequest($limit = 10, $after = null, $properties = null, $properties_with_history = null, $associations = null, $archived = false, string $contentType = self::contentTypes['getPage'][0])
     {
 
+
+
+
+
+
+
+
         $resourcePath = '/crm/v3/objects/emails';
         $formParams = [];
         $queryParams = [];
@@ -1346,16 +1500,11 @@ public function getPageRequest($limit = 10, $after = null, $properties = null, $
 
 
 
-        if ($multipart) {
-            $headers = $this->headerSelector->selectHeadersForMultipart(
-                ['application/json', '*/*']
-            );
-        } else {
-            $headers = $this->headerSelector->selectHeaders(
-                ['application/json', '*/*'],
-                []
-            );
-        }
+        $headers = $this->headerSelector->selectHeaders(
+            ['application/json', '*/*', ],
+            $contentType,
+            $multipart
+        );
 
         // for model (json/xml)
         if (count($formParams) > 0) {
@@ -1373,9 +1522,9 @@ public function getPageRequest($limit = 10, $after = null, $properties = null, $
                 // for HTTP post (form)
                 $httpBody = new MultipartStream($multipartContents);
 
-            } elseif ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode($formParams);
-
+            } elseif (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the form parameters
+                $httpBody = \GuzzleHttp\Utils::jsonEncode($formParams);
             } else {
                 // for HTTP post (form)
                 $httpBody = ObjectSerializer::buildQuery($formParams);
@@ -1398,10 +1547,11 @@ public function getPageRequest($limit = 10, $after = null, $properties = null, $
             $headers
         );
 
+        $operationHost = $this->config->getHost();
         $query = ObjectSerializer::buildQuery($queryParams);
         return new Request(
             'GET',
-            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
+            $operationHost . $resourcePath . ($query ? "?{$query}" : ''),
             $headers,
             $httpBody
         );
@@ -1415,14 +1565,15 @@ public function getPageRequest($limit = 10, $after = null, $properties = null, $
      * @param  string $email_id email_id (required)
      * @param  \HubSpot\Client\Crm\Objects\Emails\Model\SimplePublicObjectInput $simple_public_object_input simple_public_object_input (required)
      * @param  string $id_property The name of a property whose values are unique for this object type (optional)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['update'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Emails\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Emails\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return \HubSpot\Client\Crm\Objects\Emails\Model\SimplePublicObject|\HubSpot\Client\Crm\Objects\Emails\Model\Error
      */
-    public function update($email_id, $simple_public_object_input, $id_property = null)
+    public function update($email_id, $simple_public_object_input, $id_property = null, string $contentType = self::contentTypes['update'][0])
     {
-        list($response) = $this->updateWithHttpInfo($email_id, $simple_public_object_input, $id_property);
+        list($response) = $this->updateWithHttpInfo($email_id, $simple_public_object_input, $id_property, $contentType);
         return $response;
     }
 
@@ -1434,14 +1585,15 @@ public function update($email_id, $simple_public_object_input, $id_property = nu
      * @param  string $email_id (required)
      * @param  \HubSpot\Client\Crm\Objects\Emails\Model\SimplePublicObjectInput $simple_public_object_input (required)
      * @param  string $id_property The name of a property whose values are unique for this object type (optional)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['update'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Emails\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Emails\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return array of \HubSpot\Client\Crm\Objects\Emails\Model\SimplePublicObject|\HubSpot\Client\Crm\Objects\Emails\Model\Error, HTTP status code, HTTP response headers (array of strings)
      */
-    public function updateWithHttpInfo($email_id, $simple_public_object_input, $id_property = null)
+    public function updateWithHttpInfo($email_id, $simple_public_object_input, $id_property = null, string $contentType = self::contentTypes['update'][0])
     {
-        $request = $this->updateRequest($email_id, $simple_public_object_input, $id_property);
+        $request = $this->updateRequest($email_id, $simple_public_object_input, $id_property, $contentType);
 
         try {
             $options = $this->createHttpClientOption();
@@ -1485,7 +1637,19 @@ public function updateWithHttpInfo($email_id, $simple_public_object_input, $id_p
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Emails\Model\SimplePublicObject' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -1500,7 +1664,19 @@ public function updateWithHttpInfo($email_id, $simple_public_object_input, $id_p
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Emails\Model\Error' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -1517,7 +1693,19 @@ public function updateWithHttpInfo($email_id, $simple_public_object_input, $id_p
             } else {
                 $content = (string) $response->getBody();
                 if ($returnType !== 'string') {
-                    $content = json_decode($content);
+                    try {
+                        $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                    } catch (\JsonException $exception) {
+                        throw new ApiException(
+                            sprintf(
+                                'Error JSON decoding server response (%s)',
+                                $request->getUri()
+                            ),
+                            $statusCode,
+                            $response->getHeaders(),
+                            $content
+                        );
+                    }
                 }
             }
 
@@ -1558,13 +1746,14 @@ public function updateWithHttpInfo($email_id, $simple_public_object_input, $id_p
      * @param  string $email_id (required)
      * @param  \HubSpot\Client\Crm\Objects\Emails\Model\SimplePublicObjectInput $simple_public_object_input (required)
      * @param  string $id_property The name of a property whose values are unique for this object type (optional)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['update'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function updateAsync($email_id, $simple_public_object_input, $id_property = null)
+    public function updateAsync($email_id, $simple_public_object_input, $id_property = null, string $contentType = self::contentTypes['update'][0])
     {
-        return $this->updateAsyncWithHttpInfo($email_id, $simple_public_object_input, $id_property)
+        return $this->updateAsyncWithHttpInfo($email_id, $simple_public_object_input, $id_property, $contentType)
             ->then(
                 function ($response) {
                     return $response[0];
@@ -1580,14 +1769,15 @@ function ($response) {
      * @param  string $email_id (required)
      * @param  \HubSpot\Client\Crm\Objects\Emails\Model\SimplePublicObjectInput $simple_public_object_input (required)
      * @param  string $id_property The name of a property whose values are unique for this object type (optional)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['update'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function updateAsyncWithHttpInfo($email_id, $simple_public_object_input, $id_property = null)
+    public function updateAsyncWithHttpInfo($email_id, $simple_public_object_input, $id_property = null, string $contentType = self::contentTypes['update'][0])
     {
         $returnType = '\HubSpot\Client\Crm\Objects\Emails\Model\SimplePublicObject';
-        $request = $this->updateRequest($email_id, $simple_public_object_input, $id_property);
+        $request = $this->updateRequest($email_id, $simple_public_object_input, $id_property, $contentType);
 
         return $this->client
             ->sendAsync($request, $this->createHttpClientOption())
@@ -1631,18 +1821,21 @@ function ($exception) {
      * @param  string $email_id (required)
      * @param  \HubSpot\Client\Crm\Objects\Emails\Model\SimplePublicObjectInput $simple_public_object_input (required)
      * @param  string $id_property The name of a property whose values are unique for this object type (optional)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['update'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Psr7\Request
      */
-    public function updateRequest($email_id, $simple_public_object_input, $id_property = null)
+    public function updateRequest($email_id, $simple_public_object_input, $id_property = null, string $contentType = self::contentTypes['update'][0])
     {
+
         // verify the required parameter 'email_id' is set
         if ($email_id === null || (is_array($email_id) && count($email_id) === 0)) {
             throw new \InvalidArgumentException(
                 'Missing the required parameter $email_id when calling update'
             );
         }
+
         // verify the required parameter 'simple_public_object_input' is set
         if ($simple_public_object_input === null || (is_array($simple_public_object_input) && count($simple_public_object_input) === 0)) {
             throw new \InvalidArgumentException(
@@ -1650,6 +1843,8 @@ public function updateRequest($email_id, $simple_public_object_input, $id_proper
             );
         }
 
+
+
         $resourcePath = '/crm/v3/objects/emails/{emailId}';
         $formParams = [];
         $queryParams = [];
@@ -1678,21 +1873,17 @@ public function updateRequest($email_id, $simple_public_object_input, $id_proper
         }
 
 
-        if ($multipart) {
-            $headers = $this->headerSelector->selectHeadersForMultipart(
-                ['application/json', '*/*']
-            );
-        } else {
-            $headers = $this->headerSelector->selectHeaders(
-                ['application/json', '*/*'],
-                ['application/json']
-            );
-        }
+        $headers = $this->headerSelector->selectHeaders(
+            ['application/json', '*/*', ],
+            $contentType,
+            $multipart
+        );
 
         // for model (json/xml)
         if (isset($simple_public_object_input)) {
-            if ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode(ObjectSerializer::sanitizeForSerialization($simple_public_object_input));
+            if (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the body
+                $httpBody = \GuzzleHttp\Utils::jsonEncode(ObjectSerializer::sanitizeForSerialization($simple_public_object_input));
             } else {
                 $httpBody = $simple_public_object_input;
             }
@@ -1711,9 +1902,9 @@ public function updateRequest($email_id, $simple_public_object_input, $id_proper
                 // for HTTP post (form)
                 $httpBody = new MultipartStream($multipartContents);
 
-            } elseif ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode($formParams);
-
+            } elseif (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the form parameters
+                $httpBody = \GuzzleHttp\Utils::jsonEncode($formParams);
             } else {
                 // for HTTP post (form)
                 $httpBody = ObjectSerializer::buildQuery($formParams);
@@ -1736,10 +1927,11 @@ public function updateRequest($email_id, $simple_public_object_input, $id_proper
             $headers
         );
 
+        $operationHost = $this->config->getHost();
         $query = ObjectSerializer::buildQuery($queryParams);
         return new Request(
             'PATCH',
-            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
+            $operationHost . $resourcePath . ($query ? "?{$query}" : ''),
             $headers,
             $httpBody
         );
diff --git a/codegen/Crm/Objects/Emails/Api/BatchApi.php b/codegen/Crm/Objects/Emails/Api/BatchApi.php
index d50cc2df..b23a4839 100644
--- a/codegen/Crm/Objects/Emails/Api/BatchApi.php
+++ b/codegen/Crm/Objects/Emails/Api/BatchApi.php
@@ -16,7 +16,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -69,6 +69,22 @@ class BatchApi
      */
     protected $hostIndex;
 
+    /** @var string[] $contentTypes **/
+    public const contentTypes = [
+        'archive' => [
+            'application/json',
+        ],
+        'create' => [
+            'application/json',
+        ],
+        'read' => [
+            'application/json',
+        ],
+        'update' => [
+            'application/json',
+        ],
+    ];
+
     /**
      * @param ClientInterface $client
      * @param Configuration   $config
@@ -121,14 +137,15 @@ public function getConfig()
      * Archive a batch of emails by ID
      *
      * @param  \HubSpot\Client\Crm\Objects\Emails\Model\BatchInputSimplePublicObjectId $batch_input_simple_public_object_id batch_input_simple_public_object_id (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['archive'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Emails\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Emails\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return void
      */
-    public function archive($batch_input_simple_public_object_id)
+    public function archive($batch_input_simple_public_object_id, string $contentType = self::contentTypes['archive'][0])
     {
-        $this->archiveWithHttpInfo($batch_input_simple_public_object_id);
+        $this->archiveWithHttpInfo($batch_input_simple_public_object_id, $contentType);
     }
 
     /**
@@ -137,14 +154,15 @@ public function archive($batch_input_simple_public_object_id)
      * Archive a batch of emails by ID
      *
      * @param  \HubSpot\Client\Crm\Objects\Emails\Model\BatchInputSimplePublicObjectId $batch_input_simple_public_object_id (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['archive'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Emails\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Emails\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return array of null, HTTP status code, HTTP response headers (array of strings)
      */
-    public function archiveWithHttpInfo($batch_input_simple_public_object_id)
+    public function archiveWithHttpInfo($batch_input_simple_public_object_id, string $contentType = self::contentTypes['archive'][0])
     {
-        $request = $this->archiveRequest($batch_input_simple_public_object_id);
+        $request = $this->archiveRequest($batch_input_simple_public_object_id, $contentType);
 
         try {
             $options = $this->createHttpClientOption();
@@ -204,13 +222,14 @@ public function archiveWithHttpInfo($batch_input_simple_public_object_id)
      * Archive a batch of emails by ID
      *
      * @param  \HubSpot\Client\Crm\Objects\Emails\Model\BatchInputSimplePublicObjectId $batch_input_simple_public_object_id (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['archive'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function archiveAsync($batch_input_simple_public_object_id)
+    public function archiveAsync($batch_input_simple_public_object_id, string $contentType = self::contentTypes['archive'][0])
     {
-        return $this->archiveAsyncWithHttpInfo($batch_input_simple_public_object_id)
+        return $this->archiveAsyncWithHttpInfo($batch_input_simple_public_object_id, $contentType)
             ->then(
                 function ($response) {
                     return $response[0];
@@ -224,14 +243,15 @@ function ($response) {
      * Archive a batch of emails by ID
      *
      * @param  \HubSpot\Client\Crm\Objects\Emails\Model\BatchInputSimplePublicObjectId $batch_input_simple_public_object_id (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['archive'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function archiveAsyncWithHttpInfo($batch_input_simple_public_object_id)
+    public function archiveAsyncWithHttpInfo($batch_input_simple_public_object_id, string $contentType = self::contentTypes['archive'][0])
     {
         $returnType = '';
-        $request = $this->archiveRequest($batch_input_simple_public_object_id);
+        $request = $this->archiveRequest($batch_input_simple_public_object_id, $contentType);
 
         return $this->client
             ->sendAsync($request, $this->createHttpClientOption())
@@ -260,12 +280,14 @@ function ($exception) {
      * Create request for operation 'archive'
      *
      * @param  \HubSpot\Client\Crm\Objects\Emails\Model\BatchInputSimplePublicObjectId $batch_input_simple_public_object_id (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['archive'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Psr7\Request
      */
-    public function archiveRequest($batch_input_simple_public_object_id)
+    public function archiveRequest($batch_input_simple_public_object_id, string $contentType = self::contentTypes['archive'][0])
     {
+
         // verify the required parameter 'batch_input_simple_public_object_id' is set
         if ($batch_input_simple_public_object_id === null || (is_array($batch_input_simple_public_object_id) && count($batch_input_simple_public_object_id) === 0)) {
             throw new \InvalidArgumentException(
@@ -273,6 +295,7 @@ public function archiveRequest($batch_input_simple_public_object_id)
             );
         }
 
+
         $resourcePath = '/crm/v3/objects/emails/batch/archive';
         $formParams = [];
         $queryParams = [];
@@ -284,21 +307,17 @@ public function archiveRequest($batch_input_simple_public_object_id)
 
 
 
-        if ($multipart) {
-            $headers = $this->headerSelector->selectHeadersForMultipart(
-                ['*/*']
-            );
-        } else {
-            $headers = $this->headerSelector->selectHeaders(
-                ['*/*'],
-                ['application/json']
-            );
-        }
+        $headers = $this->headerSelector->selectHeaders(
+            ['*/*', ],
+            $contentType,
+            $multipart
+        );
 
         // for model (json/xml)
         if (isset($batch_input_simple_public_object_id)) {
-            if ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode(ObjectSerializer::sanitizeForSerialization($batch_input_simple_public_object_id));
+            if (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the body
+                $httpBody = \GuzzleHttp\Utils::jsonEncode(ObjectSerializer::sanitizeForSerialization($batch_input_simple_public_object_id));
             } else {
                 $httpBody = $batch_input_simple_public_object_id;
             }
@@ -317,9 +336,9 @@ public function archiveRequest($batch_input_simple_public_object_id)
                 // for HTTP post (form)
                 $httpBody = new MultipartStream($multipartContents);
 
-            } elseif ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode($formParams);
-
+            } elseif (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the form parameters
+                $httpBody = \GuzzleHttp\Utils::jsonEncode($formParams);
             } else {
                 // for HTTP post (form)
                 $httpBody = ObjectSerializer::buildQuery($formParams);
@@ -342,10 +361,11 @@ public function archiveRequest($batch_input_simple_public_object_id)
             $headers
         );
 
+        $operationHost = $this->config->getHost();
         $query = ObjectSerializer::buildQuery($queryParams);
         return new Request(
             'POST',
-            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
+            $operationHost . $resourcePath . ($query ? "?{$query}" : ''),
             $headers,
             $httpBody
         );
@@ -357,14 +377,15 @@ public function archiveRequest($batch_input_simple_public_object_id)
      * Create a batch of emails
      *
      * @param  \HubSpot\Client\Crm\Objects\Emails\Model\BatchInputSimplePublicObjectInputForCreate $batch_input_simple_public_object_input_for_create batch_input_simple_public_object_input_for_create (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['create'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Emails\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Emails\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return \HubSpot\Client\Crm\Objects\Emails\Model\BatchResponseSimplePublicObject|\HubSpot\Client\Crm\Objects\Emails\Model\BatchResponseSimplePublicObjectWithErrors|\HubSpot\Client\Crm\Objects\Emails\Model\Error
      */
-    public function create($batch_input_simple_public_object_input_for_create)
+    public function create($batch_input_simple_public_object_input_for_create, string $contentType = self::contentTypes['create'][0])
     {
-        list($response) = $this->createWithHttpInfo($batch_input_simple_public_object_input_for_create);
+        list($response) = $this->createWithHttpInfo($batch_input_simple_public_object_input_for_create, $contentType);
         return $response;
     }
 
@@ -374,14 +395,15 @@ public function create($batch_input_simple_public_object_input_for_create)
      * Create a batch of emails
      *
      * @param  \HubSpot\Client\Crm\Objects\Emails\Model\BatchInputSimplePublicObjectInputForCreate $batch_input_simple_public_object_input_for_create (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['create'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Emails\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Emails\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return array of \HubSpot\Client\Crm\Objects\Emails\Model\BatchResponseSimplePublicObject|\HubSpot\Client\Crm\Objects\Emails\Model\BatchResponseSimplePublicObjectWithErrors|\HubSpot\Client\Crm\Objects\Emails\Model\Error, HTTP status code, HTTP response headers (array of strings)
      */
-    public function createWithHttpInfo($batch_input_simple_public_object_input_for_create)
+    public function createWithHttpInfo($batch_input_simple_public_object_input_for_create, string $contentType = self::contentTypes['create'][0])
     {
-        $request = $this->createRequest($batch_input_simple_public_object_input_for_create);
+        $request = $this->createRequest($batch_input_simple_public_object_input_for_create, $contentType);
 
         try {
             $options = $this->createHttpClientOption();
@@ -425,7 +447,19 @@ public function createWithHttpInfo($batch_input_simple_public_object_input_for_c
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Emails\Model\BatchResponseSimplePublicObject' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -440,7 +474,19 @@ public function createWithHttpInfo($batch_input_simple_public_object_input_for_c
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Emails\Model\BatchResponseSimplePublicObjectWithErrors' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -455,7 +501,19 @@ public function createWithHttpInfo($batch_input_simple_public_object_input_for_c
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Emails\Model\Error' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -472,7 +530,19 @@ public function createWithHttpInfo($batch_input_simple_public_object_input_for_c
             } else {
                 $content = (string) $response->getBody();
                 if ($returnType !== 'string') {
-                    $content = json_decode($content);
+                    try {
+                        $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                    } catch (\JsonException $exception) {
+                        throw new ApiException(
+                            sprintf(
+                                'Error JSON decoding server response (%s)',
+                                $request->getUri()
+                            ),
+                            $statusCode,
+                            $response->getHeaders(),
+                            $content
+                        );
+                    }
                 }
             }
 
@@ -519,13 +589,14 @@ public function createWithHttpInfo($batch_input_simple_public_object_input_for_c
      * Create a batch of emails
      *
      * @param  \HubSpot\Client\Crm\Objects\Emails\Model\BatchInputSimplePublicObjectInputForCreate $batch_input_simple_public_object_input_for_create (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['create'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function createAsync($batch_input_simple_public_object_input_for_create)
+    public function createAsync($batch_input_simple_public_object_input_for_create, string $contentType = self::contentTypes['create'][0])
     {
-        return $this->createAsyncWithHttpInfo($batch_input_simple_public_object_input_for_create)
+        return $this->createAsyncWithHttpInfo($batch_input_simple_public_object_input_for_create, $contentType)
             ->then(
                 function ($response) {
                     return $response[0];
@@ -539,14 +610,15 @@ function ($response) {
      * Create a batch of emails
      *
      * @param  \HubSpot\Client\Crm\Objects\Emails\Model\BatchInputSimplePublicObjectInputForCreate $batch_input_simple_public_object_input_for_create (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['create'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function createAsyncWithHttpInfo($batch_input_simple_public_object_input_for_create)
+    public function createAsyncWithHttpInfo($batch_input_simple_public_object_input_for_create, string $contentType = self::contentTypes['create'][0])
     {
         $returnType = '\HubSpot\Client\Crm\Objects\Emails\Model\BatchResponseSimplePublicObject';
-        $request = $this->createRequest($batch_input_simple_public_object_input_for_create);
+        $request = $this->createRequest($batch_input_simple_public_object_input_for_create, $contentType);
 
         return $this->client
             ->sendAsync($request, $this->createHttpClientOption())
@@ -588,12 +660,14 @@ function ($exception) {
      * Create request for operation 'create'
      *
      * @param  \HubSpot\Client\Crm\Objects\Emails\Model\BatchInputSimplePublicObjectInputForCreate $batch_input_simple_public_object_input_for_create (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['create'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Psr7\Request
      */
-    public function createRequest($batch_input_simple_public_object_input_for_create)
+    public function createRequest($batch_input_simple_public_object_input_for_create, string $contentType = self::contentTypes['create'][0])
     {
+
         // verify the required parameter 'batch_input_simple_public_object_input_for_create' is set
         if ($batch_input_simple_public_object_input_for_create === null || (is_array($batch_input_simple_public_object_input_for_create) && count($batch_input_simple_public_object_input_for_create) === 0)) {
             throw new \InvalidArgumentException(
@@ -601,6 +675,7 @@ public function createRequest($batch_input_simple_public_object_input_for_create
             );
         }
 
+
         $resourcePath = '/crm/v3/objects/emails/batch/create';
         $formParams = [];
         $queryParams = [];
@@ -612,21 +687,17 @@ public function createRequest($batch_input_simple_public_object_input_for_create
 
 
 
-        if ($multipart) {
-            $headers = $this->headerSelector->selectHeadersForMultipart(
-                ['application/json', '*/*']
-            );
-        } else {
-            $headers = $this->headerSelector->selectHeaders(
-                ['application/json', '*/*'],
-                ['application/json']
-            );
-        }
+        $headers = $this->headerSelector->selectHeaders(
+            ['application/json', '*/*', ],
+            $contentType,
+            $multipart
+        );
 
         // for model (json/xml)
         if (isset($batch_input_simple_public_object_input_for_create)) {
-            if ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode(ObjectSerializer::sanitizeForSerialization($batch_input_simple_public_object_input_for_create));
+            if (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the body
+                $httpBody = \GuzzleHttp\Utils::jsonEncode(ObjectSerializer::sanitizeForSerialization($batch_input_simple_public_object_input_for_create));
             } else {
                 $httpBody = $batch_input_simple_public_object_input_for_create;
             }
@@ -645,9 +716,9 @@ public function createRequest($batch_input_simple_public_object_input_for_create
                 // for HTTP post (form)
                 $httpBody = new MultipartStream($multipartContents);
 
-            } elseif ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode($formParams);
-
+            } elseif (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the form parameters
+                $httpBody = \GuzzleHttp\Utils::jsonEncode($formParams);
             } else {
                 // for HTTP post (form)
                 $httpBody = ObjectSerializer::buildQuery($formParams);
@@ -670,10 +741,11 @@ public function createRequest($batch_input_simple_public_object_input_for_create
             $headers
         );
 
+        $operationHost = $this->config->getHost();
         $query = ObjectSerializer::buildQuery($queryParams);
         return new Request(
             'POST',
-            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
+            $operationHost . $resourcePath . ($query ? "?{$query}" : ''),
             $headers,
             $httpBody
         );
@@ -686,14 +758,15 @@ public function createRequest($batch_input_simple_public_object_input_for_create
      *
      * @param  \HubSpot\Client\Crm\Objects\Emails\Model\BatchReadInputSimplePublicObjectId $batch_read_input_simple_public_object_id batch_read_input_simple_public_object_id (required)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['read'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Emails\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Emails\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return \HubSpot\Client\Crm\Objects\Emails\Model\BatchResponseSimplePublicObject|\HubSpot\Client\Crm\Objects\Emails\Model\BatchResponseSimplePublicObjectWithErrors|\HubSpot\Client\Crm\Objects\Emails\Model\Error
      */
-    public function read($batch_read_input_simple_public_object_id, $archived = false)
+    public function read($batch_read_input_simple_public_object_id, $archived = false, string $contentType = self::contentTypes['read'][0])
     {
-        list($response) = $this->readWithHttpInfo($batch_read_input_simple_public_object_id, $archived);
+        list($response) = $this->readWithHttpInfo($batch_read_input_simple_public_object_id, $archived, $contentType);
         return $response;
     }
 
@@ -704,14 +777,15 @@ public function read($batch_read_input_simple_public_object_id, $archived = fals
      *
      * @param  \HubSpot\Client\Crm\Objects\Emails\Model\BatchReadInputSimplePublicObjectId $batch_read_input_simple_public_object_id (required)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['read'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Emails\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Emails\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return array of \HubSpot\Client\Crm\Objects\Emails\Model\BatchResponseSimplePublicObject|\HubSpot\Client\Crm\Objects\Emails\Model\BatchResponseSimplePublicObjectWithErrors|\HubSpot\Client\Crm\Objects\Emails\Model\Error, HTTP status code, HTTP response headers (array of strings)
      */
-    public function readWithHttpInfo($batch_read_input_simple_public_object_id, $archived = false)
+    public function readWithHttpInfo($batch_read_input_simple_public_object_id, $archived = false, string $contentType = self::contentTypes['read'][0])
     {
-        $request = $this->readRequest($batch_read_input_simple_public_object_id, $archived);
+        $request = $this->readRequest($batch_read_input_simple_public_object_id, $archived, $contentType);
 
         try {
             $options = $this->createHttpClientOption();
@@ -755,7 +829,19 @@ public function readWithHttpInfo($batch_read_input_simple_public_object_id, $arc
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Emails\Model\BatchResponseSimplePublicObject' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -770,7 +856,19 @@ public function readWithHttpInfo($batch_read_input_simple_public_object_id, $arc
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Emails\Model\BatchResponseSimplePublicObjectWithErrors' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -785,7 +883,19 @@ public function readWithHttpInfo($batch_read_input_simple_public_object_id, $arc
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Emails\Model\Error' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -802,7 +912,19 @@ public function readWithHttpInfo($batch_read_input_simple_public_object_id, $arc
             } else {
                 $content = (string) $response->getBody();
                 if ($returnType !== 'string') {
-                    $content = json_decode($content);
+                    try {
+                        $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                    } catch (\JsonException $exception) {
+                        throw new ApiException(
+                            sprintf(
+                                'Error JSON decoding server response (%s)',
+                                $request->getUri()
+                            ),
+                            $statusCode,
+                            $response->getHeaders(),
+                            $content
+                        );
+                    }
                 }
             }
 
@@ -850,13 +972,14 @@ public function readWithHttpInfo($batch_read_input_simple_public_object_id, $arc
      *
      * @param  \HubSpot\Client\Crm\Objects\Emails\Model\BatchReadInputSimplePublicObjectId $batch_read_input_simple_public_object_id (required)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['read'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function readAsync($batch_read_input_simple_public_object_id, $archived = false)
+    public function readAsync($batch_read_input_simple_public_object_id, $archived = false, string $contentType = self::contentTypes['read'][0])
     {
-        return $this->readAsyncWithHttpInfo($batch_read_input_simple_public_object_id, $archived)
+        return $this->readAsyncWithHttpInfo($batch_read_input_simple_public_object_id, $archived, $contentType)
             ->then(
                 function ($response) {
                     return $response[0];
@@ -871,14 +994,15 @@ function ($response) {
      *
      * @param  \HubSpot\Client\Crm\Objects\Emails\Model\BatchReadInputSimplePublicObjectId $batch_read_input_simple_public_object_id (required)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['read'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function readAsyncWithHttpInfo($batch_read_input_simple_public_object_id, $archived = false)
+    public function readAsyncWithHttpInfo($batch_read_input_simple_public_object_id, $archived = false, string $contentType = self::contentTypes['read'][0])
     {
         $returnType = '\HubSpot\Client\Crm\Objects\Emails\Model\BatchResponseSimplePublicObject';
-        $request = $this->readRequest($batch_read_input_simple_public_object_id, $archived);
+        $request = $this->readRequest($batch_read_input_simple_public_object_id, $archived, $contentType);
 
         return $this->client
             ->sendAsync($request, $this->createHttpClientOption())
@@ -921,12 +1045,14 @@ function ($exception) {
      *
      * @param  \HubSpot\Client\Crm\Objects\Emails\Model\BatchReadInputSimplePublicObjectId $batch_read_input_simple_public_object_id (required)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['read'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Psr7\Request
      */
-    public function readRequest($batch_read_input_simple_public_object_id, $archived = false)
+    public function readRequest($batch_read_input_simple_public_object_id, $archived = false, string $contentType = self::contentTypes['read'][0])
     {
+
         // verify the required parameter 'batch_read_input_simple_public_object_id' is set
         if ($batch_read_input_simple_public_object_id === null || (is_array($batch_read_input_simple_public_object_id) && count($batch_read_input_simple_public_object_id) === 0)) {
             throw new \InvalidArgumentException(
@@ -934,6 +1060,8 @@ public function readRequest($batch_read_input_simple_public_object_id, $archived
             );
         }
 
+
+
         $resourcePath = '/crm/v3/objects/emails/batch/read';
         $formParams = [];
         $queryParams = [];
@@ -954,21 +1082,17 @@ public function readRequest($batch_read_input_simple_public_object_id, $archived
 
 
 
-        if ($multipart) {
-            $headers = $this->headerSelector->selectHeadersForMultipart(
-                ['application/json', '*/*']
-            );
-        } else {
-            $headers = $this->headerSelector->selectHeaders(
-                ['application/json', '*/*'],
-                ['application/json']
-            );
-        }
+        $headers = $this->headerSelector->selectHeaders(
+            ['application/json', '*/*', ],
+            $contentType,
+            $multipart
+        );
 
         // for model (json/xml)
         if (isset($batch_read_input_simple_public_object_id)) {
-            if ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode(ObjectSerializer::sanitizeForSerialization($batch_read_input_simple_public_object_id));
+            if (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the body
+                $httpBody = \GuzzleHttp\Utils::jsonEncode(ObjectSerializer::sanitizeForSerialization($batch_read_input_simple_public_object_id));
             } else {
                 $httpBody = $batch_read_input_simple_public_object_id;
             }
@@ -987,9 +1111,9 @@ public function readRequest($batch_read_input_simple_public_object_id, $archived
                 // for HTTP post (form)
                 $httpBody = new MultipartStream($multipartContents);
 
-            } elseif ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode($formParams);
-
+            } elseif (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the form parameters
+                $httpBody = \GuzzleHttp\Utils::jsonEncode($formParams);
             } else {
                 // for HTTP post (form)
                 $httpBody = ObjectSerializer::buildQuery($formParams);
@@ -1012,10 +1136,11 @@ public function readRequest($batch_read_input_simple_public_object_id, $archived
             $headers
         );
 
+        $operationHost = $this->config->getHost();
         $query = ObjectSerializer::buildQuery($queryParams);
         return new Request(
             'POST',
-            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
+            $operationHost . $resourcePath . ($query ? "?{$query}" : ''),
             $headers,
             $httpBody
         );
@@ -1027,14 +1152,15 @@ public function readRequest($batch_read_input_simple_public_object_id, $archived
      * Update a batch of emails
      *
      * @param  \HubSpot\Client\Crm\Objects\Emails\Model\BatchInputSimplePublicObjectBatchInput $batch_input_simple_public_object_batch_input batch_input_simple_public_object_batch_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['update'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Emails\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Emails\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return \HubSpot\Client\Crm\Objects\Emails\Model\BatchResponseSimplePublicObject|\HubSpot\Client\Crm\Objects\Emails\Model\BatchResponseSimplePublicObjectWithErrors|\HubSpot\Client\Crm\Objects\Emails\Model\Error
      */
-    public function update($batch_input_simple_public_object_batch_input)
+    public function update($batch_input_simple_public_object_batch_input, string $contentType = self::contentTypes['update'][0])
     {
-        list($response) = $this->updateWithHttpInfo($batch_input_simple_public_object_batch_input);
+        list($response) = $this->updateWithHttpInfo($batch_input_simple_public_object_batch_input, $contentType);
         return $response;
     }
 
@@ -1044,14 +1170,15 @@ public function update($batch_input_simple_public_object_batch_input)
      * Update a batch of emails
      *
      * @param  \HubSpot\Client\Crm\Objects\Emails\Model\BatchInputSimplePublicObjectBatchInput $batch_input_simple_public_object_batch_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['update'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Emails\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Emails\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return array of \HubSpot\Client\Crm\Objects\Emails\Model\BatchResponseSimplePublicObject|\HubSpot\Client\Crm\Objects\Emails\Model\BatchResponseSimplePublicObjectWithErrors|\HubSpot\Client\Crm\Objects\Emails\Model\Error, HTTP status code, HTTP response headers (array of strings)
      */
-    public function updateWithHttpInfo($batch_input_simple_public_object_batch_input)
+    public function updateWithHttpInfo($batch_input_simple_public_object_batch_input, string $contentType = self::contentTypes['update'][0])
     {
-        $request = $this->updateRequest($batch_input_simple_public_object_batch_input);
+        $request = $this->updateRequest($batch_input_simple_public_object_batch_input, $contentType);
 
         try {
             $options = $this->createHttpClientOption();
@@ -1095,7 +1222,19 @@ public function updateWithHttpInfo($batch_input_simple_public_object_batch_input
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Emails\Model\BatchResponseSimplePublicObject' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -1110,7 +1249,19 @@ public function updateWithHttpInfo($batch_input_simple_public_object_batch_input
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Emails\Model\BatchResponseSimplePublicObjectWithErrors' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -1125,7 +1276,19 @@ public function updateWithHttpInfo($batch_input_simple_public_object_batch_input
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Emails\Model\Error' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -1142,7 +1305,19 @@ public function updateWithHttpInfo($batch_input_simple_public_object_batch_input
             } else {
                 $content = (string) $response->getBody();
                 if ($returnType !== 'string') {
-                    $content = json_decode($content);
+                    try {
+                        $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                    } catch (\JsonException $exception) {
+                        throw new ApiException(
+                            sprintf(
+                                'Error JSON decoding server response (%s)',
+                                $request->getUri()
+                            ),
+                            $statusCode,
+                            $response->getHeaders(),
+                            $content
+                        );
+                    }
                 }
             }
 
@@ -1189,13 +1364,14 @@ public function updateWithHttpInfo($batch_input_simple_public_object_batch_input
      * Update a batch of emails
      *
      * @param  \HubSpot\Client\Crm\Objects\Emails\Model\BatchInputSimplePublicObjectBatchInput $batch_input_simple_public_object_batch_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['update'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function updateAsync($batch_input_simple_public_object_batch_input)
+    public function updateAsync($batch_input_simple_public_object_batch_input, string $contentType = self::contentTypes['update'][0])
     {
-        return $this->updateAsyncWithHttpInfo($batch_input_simple_public_object_batch_input)
+        return $this->updateAsyncWithHttpInfo($batch_input_simple_public_object_batch_input, $contentType)
             ->then(
                 function ($response) {
                     return $response[0];
@@ -1209,14 +1385,15 @@ function ($response) {
      * Update a batch of emails
      *
      * @param  \HubSpot\Client\Crm\Objects\Emails\Model\BatchInputSimplePublicObjectBatchInput $batch_input_simple_public_object_batch_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['update'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function updateAsyncWithHttpInfo($batch_input_simple_public_object_batch_input)
+    public function updateAsyncWithHttpInfo($batch_input_simple_public_object_batch_input, string $contentType = self::contentTypes['update'][0])
     {
         $returnType = '\HubSpot\Client\Crm\Objects\Emails\Model\BatchResponseSimplePublicObject';
-        $request = $this->updateRequest($batch_input_simple_public_object_batch_input);
+        $request = $this->updateRequest($batch_input_simple_public_object_batch_input, $contentType);
 
         return $this->client
             ->sendAsync($request, $this->createHttpClientOption())
@@ -1258,12 +1435,14 @@ function ($exception) {
      * Create request for operation 'update'
      *
      * @param  \HubSpot\Client\Crm\Objects\Emails\Model\BatchInputSimplePublicObjectBatchInput $batch_input_simple_public_object_batch_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['update'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Psr7\Request
      */
-    public function updateRequest($batch_input_simple_public_object_batch_input)
+    public function updateRequest($batch_input_simple_public_object_batch_input, string $contentType = self::contentTypes['update'][0])
     {
+
         // verify the required parameter 'batch_input_simple_public_object_batch_input' is set
         if ($batch_input_simple_public_object_batch_input === null || (is_array($batch_input_simple_public_object_batch_input) && count($batch_input_simple_public_object_batch_input) === 0)) {
             throw new \InvalidArgumentException(
@@ -1271,6 +1450,7 @@ public function updateRequest($batch_input_simple_public_object_batch_input)
             );
         }
 
+
         $resourcePath = '/crm/v3/objects/emails/batch/update';
         $formParams = [];
         $queryParams = [];
@@ -1282,21 +1462,17 @@ public function updateRequest($batch_input_simple_public_object_batch_input)
 
 
 
-        if ($multipart) {
-            $headers = $this->headerSelector->selectHeadersForMultipart(
-                ['application/json', '*/*']
-            );
-        } else {
-            $headers = $this->headerSelector->selectHeaders(
-                ['application/json', '*/*'],
-                ['application/json']
-            );
-        }
+        $headers = $this->headerSelector->selectHeaders(
+            ['application/json', '*/*', ],
+            $contentType,
+            $multipart
+        );
 
         // for model (json/xml)
         if (isset($batch_input_simple_public_object_batch_input)) {
-            if ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode(ObjectSerializer::sanitizeForSerialization($batch_input_simple_public_object_batch_input));
+            if (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the body
+                $httpBody = \GuzzleHttp\Utils::jsonEncode(ObjectSerializer::sanitizeForSerialization($batch_input_simple_public_object_batch_input));
             } else {
                 $httpBody = $batch_input_simple_public_object_batch_input;
             }
@@ -1315,9 +1491,9 @@ public function updateRequest($batch_input_simple_public_object_batch_input)
                 // for HTTP post (form)
                 $httpBody = new MultipartStream($multipartContents);
 
-            } elseif ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode($formParams);
-
+            } elseif (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the form parameters
+                $httpBody = \GuzzleHttp\Utils::jsonEncode($formParams);
             } else {
                 // for HTTP post (form)
                 $httpBody = ObjectSerializer::buildQuery($formParams);
@@ -1340,10 +1516,11 @@ public function updateRequest($batch_input_simple_public_object_batch_input)
             $headers
         );
 
+        $operationHost = $this->config->getHost();
         $query = ObjectSerializer::buildQuery($queryParams);
         return new Request(
             'POST',
-            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
+            $operationHost . $resourcePath . ($query ? "?{$query}" : ''),
             $headers,
             $httpBody
         );
diff --git a/codegen/Crm/Objects/Emails/Api/GDPRApi.php b/codegen/Crm/Objects/Emails/Api/GDPRApi.php
index 7f863923..4a66b1db 100644
--- a/codegen/Crm/Objects/Emails/Api/GDPRApi.php
+++ b/codegen/Crm/Objects/Emails/Api/GDPRApi.php
@@ -16,7 +16,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -69,6 +69,13 @@ class GDPRApi
      */
     protected $hostIndex;
 
+    /** @var string[] $contentTypes **/
+    public const contentTypes = [
+        'purge' => [
+            'application/json',
+        ],
+    ];
+
     /**
      * @param ClientInterface $client
      * @param Configuration   $config
@@ -121,14 +128,15 @@ public function getConfig()
      * GDPR DELETE
      *
      * @param  \HubSpot\Client\Crm\Objects\Emails\Model\PublicGdprDeleteInput $public_gdpr_delete_input public_gdpr_delete_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['purge'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Emails\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Emails\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return void
      */
-    public function purge($public_gdpr_delete_input)
+    public function purge($public_gdpr_delete_input, string $contentType = self::contentTypes['purge'][0])
     {
-        $this->purgeWithHttpInfo($public_gdpr_delete_input);
+        $this->purgeWithHttpInfo($public_gdpr_delete_input, $contentType);
     }
 
     /**
@@ -137,14 +145,15 @@ public function purge($public_gdpr_delete_input)
      * GDPR DELETE
      *
      * @param  \HubSpot\Client\Crm\Objects\Emails\Model\PublicGdprDeleteInput $public_gdpr_delete_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['purge'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Emails\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Emails\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return array of null, HTTP status code, HTTP response headers (array of strings)
      */
-    public function purgeWithHttpInfo($public_gdpr_delete_input)
+    public function purgeWithHttpInfo($public_gdpr_delete_input, string $contentType = self::contentTypes['purge'][0])
     {
-        $request = $this->purgeRequest($public_gdpr_delete_input);
+        $request = $this->purgeRequest($public_gdpr_delete_input, $contentType);
 
         try {
             $options = $this->createHttpClientOption();
@@ -204,13 +213,14 @@ public function purgeWithHttpInfo($public_gdpr_delete_input)
      * GDPR DELETE
      *
      * @param  \HubSpot\Client\Crm\Objects\Emails\Model\PublicGdprDeleteInput $public_gdpr_delete_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['purge'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function purgeAsync($public_gdpr_delete_input)
+    public function purgeAsync($public_gdpr_delete_input, string $contentType = self::contentTypes['purge'][0])
     {
-        return $this->purgeAsyncWithHttpInfo($public_gdpr_delete_input)
+        return $this->purgeAsyncWithHttpInfo($public_gdpr_delete_input, $contentType)
             ->then(
                 function ($response) {
                     return $response[0];
@@ -224,14 +234,15 @@ function ($response) {
      * GDPR DELETE
      *
      * @param  \HubSpot\Client\Crm\Objects\Emails\Model\PublicGdprDeleteInput $public_gdpr_delete_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['purge'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function purgeAsyncWithHttpInfo($public_gdpr_delete_input)
+    public function purgeAsyncWithHttpInfo($public_gdpr_delete_input, string $contentType = self::contentTypes['purge'][0])
     {
         $returnType = '';
-        $request = $this->purgeRequest($public_gdpr_delete_input);
+        $request = $this->purgeRequest($public_gdpr_delete_input, $contentType);
 
         return $this->client
             ->sendAsync($request, $this->createHttpClientOption())
@@ -260,12 +271,14 @@ function ($exception) {
      * Create request for operation 'purge'
      *
      * @param  \HubSpot\Client\Crm\Objects\Emails\Model\PublicGdprDeleteInput $public_gdpr_delete_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['purge'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Psr7\Request
      */
-    public function purgeRequest($public_gdpr_delete_input)
+    public function purgeRequest($public_gdpr_delete_input, string $contentType = self::contentTypes['purge'][0])
     {
+
         // verify the required parameter 'public_gdpr_delete_input' is set
         if ($public_gdpr_delete_input === null || (is_array($public_gdpr_delete_input) && count($public_gdpr_delete_input) === 0)) {
             throw new \InvalidArgumentException(
@@ -273,6 +286,7 @@ public function purgeRequest($public_gdpr_delete_input)
             );
         }
 
+
         $resourcePath = '/crm/v3/objects/emails/gdpr-delete';
         $formParams = [];
         $queryParams = [];
@@ -284,21 +298,17 @@ public function purgeRequest($public_gdpr_delete_input)
 
 
 
-        if ($multipart) {
-            $headers = $this->headerSelector->selectHeadersForMultipart(
-                ['*/*']
-            );
-        } else {
-            $headers = $this->headerSelector->selectHeaders(
-                ['*/*'],
-                ['application/json']
-            );
-        }
+        $headers = $this->headerSelector->selectHeaders(
+            ['*/*', ],
+            $contentType,
+            $multipart
+        );
 
         // for model (json/xml)
         if (isset($public_gdpr_delete_input)) {
-            if ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode(ObjectSerializer::sanitizeForSerialization($public_gdpr_delete_input));
+            if (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the body
+                $httpBody = \GuzzleHttp\Utils::jsonEncode(ObjectSerializer::sanitizeForSerialization($public_gdpr_delete_input));
             } else {
                 $httpBody = $public_gdpr_delete_input;
             }
@@ -317,9 +327,9 @@ public function purgeRequest($public_gdpr_delete_input)
                 // for HTTP post (form)
                 $httpBody = new MultipartStream($multipartContents);
 
-            } elseif ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode($formParams);
-
+            } elseif (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the form parameters
+                $httpBody = \GuzzleHttp\Utils::jsonEncode($formParams);
             } else {
                 // for HTTP post (form)
                 $httpBody = ObjectSerializer::buildQuery($formParams);
@@ -342,10 +352,11 @@ public function purgeRequest($public_gdpr_delete_input)
             $headers
         );
 
+        $operationHost = $this->config->getHost();
         $query = ObjectSerializer::buildQuery($queryParams);
         return new Request(
             'POST',
-            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
+            $operationHost . $resourcePath . ($query ? "?{$query}" : ''),
             $headers,
             $httpBody
         );
diff --git a/codegen/Crm/Objects/Emails/Api/PublicObjectApi.php b/codegen/Crm/Objects/Emails/Api/PublicObjectApi.php
index 429a83ad..70fa85f1 100644
--- a/codegen/Crm/Objects/Emails/Api/PublicObjectApi.php
+++ b/codegen/Crm/Objects/Emails/Api/PublicObjectApi.php
@@ -16,7 +16,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -69,6 +69,13 @@ class PublicObjectApi
      */
     protected $hostIndex;
 
+    /** @var string[] $contentTypes **/
+    public const contentTypes = [
+        'merge' => [
+            'application/json',
+        ],
+    ];
+
     /**
      * @param ClientInterface $client
      * @param Configuration   $config
@@ -121,14 +128,15 @@ public function getConfig()
      * Merge two emails with same type
      *
      * @param  \HubSpot\Client\Crm\Objects\Emails\Model\PublicMergeInput $public_merge_input public_merge_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['merge'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Emails\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Emails\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return \HubSpot\Client\Crm\Objects\Emails\Model\SimplePublicObject|\HubSpot\Client\Crm\Objects\Emails\Model\Error
      */
-    public function merge($public_merge_input)
+    public function merge($public_merge_input, string $contentType = self::contentTypes['merge'][0])
     {
-        list($response) = $this->mergeWithHttpInfo($public_merge_input);
+        list($response) = $this->mergeWithHttpInfo($public_merge_input, $contentType);
         return $response;
     }
 
@@ -138,14 +146,15 @@ public function merge($public_merge_input)
      * Merge two emails with same type
      *
      * @param  \HubSpot\Client\Crm\Objects\Emails\Model\PublicMergeInput $public_merge_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['merge'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Emails\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Emails\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return array of \HubSpot\Client\Crm\Objects\Emails\Model\SimplePublicObject|\HubSpot\Client\Crm\Objects\Emails\Model\Error, HTTP status code, HTTP response headers (array of strings)
      */
-    public function mergeWithHttpInfo($public_merge_input)
+    public function mergeWithHttpInfo($public_merge_input, string $contentType = self::contentTypes['merge'][0])
     {
-        $request = $this->mergeRequest($public_merge_input);
+        $request = $this->mergeRequest($public_merge_input, $contentType);
 
         try {
             $options = $this->createHttpClientOption();
@@ -189,7 +198,19 @@ public function mergeWithHttpInfo($public_merge_input)
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Emails\Model\SimplePublicObject' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -204,7 +225,19 @@ public function mergeWithHttpInfo($public_merge_input)
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Emails\Model\Error' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -221,7 +254,19 @@ public function mergeWithHttpInfo($public_merge_input)
             } else {
                 $content = (string) $response->getBody();
                 if ($returnType !== 'string') {
-                    $content = json_decode($content);
+                    try {
+                        $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                    } catch (\JsonException $exception) {
+                        throw new ApiException(
+                            sprintf(
+                                'Error JSON decoding server response (%s)',
+                                $request->getUri()
+                            ),
+                            $statusCode,
+                            $response->getHeaders(),
+                            $content
+                        );
+                    }
                 }
             }
 
@@ -260,13 +305,14 @@ public function mergeWithHttpInfo($public_merge_input)
      * Merge two emails with same type
      *
      * @param  \HubSpot\Client\Crm\Objects\Emails\Model\PublicMergeInput $public_merge_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['merge'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function mergeAsync($public_merge_input)
+    public function mergeAsync($public_merge_input, string $contentType = self::contentTypes['merge'][0])
     {
-        return $this->mergeAsyncWithHttpInfo($public_merge_input)
+        return $this->mergeAsyncWithHttpInfo($public_merge_input, $contentType)
             ->then(
                 function ($response) {
                     return $response[0];
@@ -280,14 +326,15 @@ function ($response) {
      * Merge two emails with same type
      *
      * @param  \HubSpot\Client\Crm\Objects\Emails\Model\PublicMergeInput $public_merge_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['merge'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function mergeAsyncWithHttpInfo($public_merge_input)
+    public function mergeAsyncWithHttpInfo($public_merge_input, string $contentType = self::contentTypes['merge'][0])
     {
         $returnType = '\HubSpot\Client\Crm\Objects\Emails\Model\SimplePublicObject';
-        $request = $this->mergeRequest($public_merge_input);
+        $request = $this->mergeRequest($public_merge_input, $contentType);
 
         return $this->client
             ->sendAsync($request, $this->createHttpClientOption())
@@ -329,12 +376,14 @@ function ($exception) {
      * Create request for operation 'merge'
      *
      * @param  \HubSpot\Client\Crm\Objects\Emails\Model\PublicMergeInput $public_merge_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['merge'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Psr7\Request
      */
-    public function mergeRequest($public_merge_input)
+    public function mergeRequest($public_merge_input, string $contentType = self::contentTypes['merge'][0])
     {
+
         // verify the required parameter 'public_merge_input' is set
         if ($public_merge_input === null || (is_array($public_merge_input) && count($public_merge_input) === 0)) {
             throw new \InvalidArgumentException(
@@ -342,6 +391,7 @@ public function mergeRequest($public_merge_input)
             );
         }
 
+
         $resourcePath = '/crm/v3/objects/emails/merge';
         $formParams = [];
         $queryParams = [];
@@ -353,21 +403,17 @@ public function mergeRequest($public_merge_input)
 
 
 
-        if ($multipart) {
-            $headers = $this->headerSelector->selectHeadersForMultipart(
-                ['application/json', '*/*']
-            );
-        } else {
-            $headers = $this->headerSelector->selectHeaders(
-                ['application/json', '*/*'],
-                ['application/json']
-            );
-        }
+        $headers = $this->headerSelector->selectHeaders(
+            ['application/json', '*/*', ],
+            $contentType,
+            $multipart
+        );
 
         // for model (json/xml)
         if (isset($public_merge_input)) {
-            if ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode(ObjectSerializer::sanitizeForSerialization($public_merge_input));
+            if (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the body
+                $httpBody = \GuzzleHttp\Utils::jsonEncode(ObjectSerializer::sanitizeForSerialization($public_merge_input));
             } else {
                 $httpBody = $public_merge_input;
             }
@@ -386,9 +432,9 @@ public function mergeRequest($public_merge_input)
                 // for HTTP post (form)
                 $httpBody = new MultipartStream($multipartContents);
 
-            } elseif ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode($formParams);
-
+            } elseif (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the form parameters
+                $httpBody = \GuzzleHttp\Utils::jsonEncode($formParams);
             } else {
                 // for HTTP post (form)
                 $httpBody = ObjectSerializer::buildQuery($formParams);
@@ -411,10 +457,11 @@ public function mergeRequest($public_merge_input)
             $headers
         );
 
+        $operationHost = $this->config->getHost();
         $query = ObjectSerializer::buildQuery($queryParams);
         return new Request(
             'POST',
-            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
+            $operationHost . $resourcePath . ($query ? "?{$query}" : ''),
             $headers,
             $httpBody
         );
diff --git a/codegen/Crm/Objects/Emails/Api/SearchApi.php b/codegen/Crm/Objects/Emails/Api/SearchApi.php
index ed14eff2..4a3e33d9 100644
--- a/codegen/Crm/Objects/Emails/Api/SearchApi.php
+++ b/codegen/Crm/Objects/Emails/Api/SearchApi.php
@@ -16,7 +16,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -69,6 +69,13 @@ class SearchApi
      */
     protected $hostIndex;
 
+    /** @var string[] $contentTypes **/
+    public const contentTypes = [
+        'doSearch' => [
+            'application/json',
+        ],
+    ];
+
     /**
      * @param ClientInterface $client
      * @param Configuration   $config
@@ -119,14 +126,15 @@ public function getConfig()
      * Operation doSearch
      *
      * @param  \HubSpot\Client\Crm\Objects\Emails\Model\PublicObjectSearchRequest $public_object_search_request public_object_search_request (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['doSearch'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Emails\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Emails\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return \HubSpot\Client\Crm\Objects\Emails\Model\CollectionResponseWithTotalSimplePublicObjectForwardPaging|\HubSpot\Client\Crm\Objects\Emails\Model\Error
      */
-    public function doSearch($public_object_search_request)
+    public function doSearch($public_object_search_request, string $contentType = self::contentTypes['doSearch'][0])
     {
-        list($response) = $this->doSearchWithHttpInfo($public_object_search_request);
+        list($response) = $this->doSearchWithHttpInfo($public_object_search_request, $contentType);
         return $response;
     }
 
@@ -134,14 +142,15 @@ public function doSearch($public_object_search_request)
      * Operation doSearchWithHttpInfo
      *
      * @param  \HubSpot\Client\Crm\Objects\Emails\Model\PublicObjectSearchRequest $public_object_search_request (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['doSearch'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Emails\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Emails\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return array of \HubSpot\Client\Crm\Objects\Emails\Model\CollectionResponseWithTotalSimplePublicObjectForwardPaging|\HubSpot\Client\Crm\Objects\Emails\Model\Error, HTTP status code, HTTP response headers (array of strings)
      */
-    public function doSearchWithHttpInfo($public_object_search_request)
+    public function doSearchWithHttpInfo($public_object_search_request, string $contentType = self::contentTypes['doSearch'][0])
     {
-        $request = $this->doSearchRequest($public_object_search_request);
+        $request = $this->doSearchRequest($public_object_search_request, $contentType);
 
         try {
             $options = $this->createHttpClientOption();
@@ -185,7 +194,19 @@ public function doSearchWithHttpInfo($public_object_search_request)
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Emails\Model\CollectionResponseWithTotalSimplePublicObjectForwardPaging' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -200,7 +221,19 @@ public function doSearchWithHttpInfo($public_object_search_request)
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Emails\Model\Error' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -217,7 +250,19 @@ public function doSearchWithHttpInfo($public_object_search_request)
             } else {
                 $content = (string) $response->getBody();
                 if ($returnType !== 'string') {
-                    $content = json_decode($content);
+                    try {
+                        $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                    } catch (\JsonException $exception) {
+                        throw new ApiException(
+                            sprintf(
+                                'Error JSON decoding server response (%s)',
+                                $request->getUri()
+                            ),
+                            $statusCode,
+                            $response->getHeaders(),
+                            $content
+                        );
+                    }
                 }
             }
 
@@ -254,13 +299,14 @@ public function doSearchWithHttpInfo($public_object_search_request)
      * Operation doSearchAsync
      *
      * @param  \HubSpot\Client\Crm\Objects\Emails\Model\PublicObjectSearchRequest $public_object_search_request (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['doSearch'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function doSearchAsync($public_object_search_request)
+    public function doSearchAsync($public_object_search_request, string $contentType = self::contentTypes['doSearch'][0])
     {
-        return $this->doSearchAsyncWithHttpInfo($public_object_search_request)
+        return $this->doSearchAsyncWithHttpInfo($public_object_search_request, $contentType)
             ->then(
                 function ($response) {
                     return $response[0];
@@ -272,14 +318,15 @@ function ($response) {
      * Operation doSearchAsyncWithHttpInfo
      *
      * @param  \HubSpot\Client\Crm\Objects\Emails\Model\PublicObjectSearchRequest $public_object_search_request (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['doSearch'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function doSearchAsyncWithHttpInfo($public_object_search_request)
+    public function doSearchAsyncWithHttpInfo($public_object_search_request, string $contentType = self::contentTypes['doSearch'][0])
     {
         $returnType = '\HubSpot\Client\Crm\Objects\Emails\Model\CollectionResponseWithTotalSimplePublicObjectForwardPaging';
-        $request = $this->doSearchRequest($public_object_search_request);
+        $request = $this->doSearchRequest($public_object_search_request, $contentType);
 
         return $this->client
             ->sendAsync($request, $this->createHttpClientOption())
@@ -321,12 +368,14 @@ function ($exception) {
      * Create request for operation 'doSearch'
      *
      * @param  \HubSpot\Client\Crm\Objects\Emails\Model\PublicObjectSearchRequest $public_object_search_request (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['doSearch'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Psr7\Request
      */
-    public function doSearchRequest($public_object_search_request)
+    public function doSearchRequest($public_object_search_request, string $contentType = self::contentTypes['doSearch'][0])
     {
+
         // verify the required parameter 'public_object_search_request' is set
         if ($public_object_search_request === null || (is_array($public_object_search_request) && count($public_object_search_request) === 0)) {
             throw new \InvalidArgumentException(
@@ -334,6 +383,7 @@ public function doSearchRequest($public_object_search_request)
             );
         }
 
+
         $resourcePath = '/crm/v3/objects/emails/search';
         $formParams = [];
         $queryParams = [];
@@ -345,21 +395,17 @@ public function doSearchRequest($public_object_search_request)
 
 
 
-        if ($multipart) {
-            $headers = $this->headerSelector->selectHeadersForMultipart(
-                ['application/json', '*/*']
-            );
-        } else {
-            $headers = $this->headerSelector->selectHeaders(
-                ['application/json', '*/*'],
-                ['application/json']
-            );
-        }
+        $headers = $this->headerSelector->selectHeaders(
+            ['application/json', '*/*', ],
+            $contentType,
+            $multipart
+        );
 
         // for model (json/xml)
         if (isset($public_object_search_request)) {
-            if ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode(ObjectSerializer::sanitizeForSerialization($public_object_search_request));
+            if (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the body
+                $httpBody = \GuzzleHttp\Utils::jsonEncode(ObjectSerializer::sanitizeForSerialization($public_object_search_request));
             } else {
                 $httpBody = $public_object_search_request;
             }
@@ -378,9 +424,9 @@ public function doSearchRequest($public_object_search_request)
                 // for HTTP post (form)
                 $httpBody = new MultipartStream($multipartContents);
 
-            } elseif ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode($formParams);
-
+            } elseif (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the form parameters
+                $httpBody = \GuzzleHttp\Utils::jsonEncode($formParams);
             } else {
                 // for HTTP post (form)
                 $httpBody = ObjectSerializer::buildQuery($formParams);
@@ -403,10 +449,11 @@ public function doSearchRequest($public_object_search_request)
             $headers
         );
 
+        $operationHost = $this->config->getHost();
         $query = ObjectSerializer::buildQuery($queryParams);
         return new Request(
             'POST',
-            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
+            $operationHost . $resourcePath . ($query ? "?{$query}" : ''),
             $headers,
             $httpBody
         );
diff --git a/codegen/Crm/Objects/Emails/ApiException.php b/codegen/Crm/Objects/Emails/ApiException.php
index c953c9b9..c9a93fa2 100644
--- a/codegen/Crm/Objects/Emails/ApiException.php
+++ b/codegen/Crm/Objects/Emails/ApiException.php
@@ -16,7 +16,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
diff --git a/codegen/Crm/Objects/Emails/Configuration.php b/codegen/Crm/Objects/Emails/Configuration.php
index 8ccd7332..7d1e4d86 100644
--- a/codegen/Crm/Objects/Emails/Configuration.php
+++ b/codegen/Crm/Objects/Emails/Configuration.php
@@ -16,7 +16,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -209,7 +209,7 @@ public function getAccessToken()
     /**
      * Sets boolean format for query string.
      *
-     * @param string $booleanFormatForQueryString Boolean format for query string
+     * @param string $booleanFormat Boolean format for query string
      *
      * @return $this
      */
@@ -479,32 +479,31 @@ public function getHostSettings()
     }
 
     /**
-     * Returns URL based on the index and variables
-     *
-     * @param int        $index     index of the host settings
-     * @param array|null $variables hash of variable and the corresponding value (optional)
-     * @return string URL based on host settings
-     */
-    public function getHostFromSettings($index, $variables = null)
+    * Returns URL based on host settings, index and variables
+    *
+    * @param array      $hostSettings array of host settings, generated from getHostSettings() or equivalent from the API clients
+    * @param int        $hostIndex    index of the host settings
+    * @param array|null $variables    hash of variable and the corresponding value (optional)
+    * @return string URL based on host settings
+    */
+    public static function getHostString(array $hostSettings, $hostIndex, array $variables = null)
     {
         if (null === $variables) {
             $variables = [];
         }
 
-        $hosts = $this->getHostSettings();
-
         // check array index out of bound
-        if ($index < 0 || $index >= sizeof($hosts)) {
-            throw new \InvalidArgumentException("Invalid index $index when selecting the host. Must be less than ".sizeof($hosts));
+        if ($hostIndex < 0 || $hostIndex >= count($hostSettings)) {
+            throw new \InvalidArgumentException("Invalid index $hostIndex when selecting the host. Must be less than ".count($hostSettings));
         }
 
-        $host = $hosts[$index];
+        $host = $hostSettings[$hostIndex];
         $url = $host["url"];
 
         // go through variable and assign a value
         foreach ($host["variables"] ?? [] as $name => $variable) {
             if (array_key_exists($name, $variables)) { // check to see if it's in the variables provided by the user
-                if (in_array($variables[$name], $variable["enum_values"], true)) { // check to see if the value is in the enum
+                if (!isset($variable['enum_values']) || in_array($variables[$name], $variable["enum_values"], true)) { // check to see if the value is in the enum
                     $url = str_replace("{".$name."}", $variables[$name], $url);
                 } else {
                     throw new \InvalidArgumentException("The variable `$name` in the host URL has invalid value ".$variables[$name].". Must be ".join(',', $variable["enum_values"]).".");
@@ -517,4 +516,16 @@ public function getHostFromSettings($index, $variables = null)
 
         return $url;
     }
+
+    /**
+     * Returns URL based on the index and variables
+     *
+     * @param int        $index     index of the host settings
+     * @param array|null $variables hash of variable and the corresponding value (optional)
+     * @return string URL based on host settings
+     */
+    public function getHostFromSettings($index, $variables = null)
+    {
+        return self::getHostString($this->getHostSettings(), $index, $variables);
+    }
 }
diff --git a/codegen/Crm/Objects/Emails/HeaderSelector.php b/codegen/Crm/Objects/Emails/HeaderSelector.php
index bb4d3448..403718d8 100644
--- a/codegen/Crm/Objects/Emails/HeaderSelector.php
+++ b/codegen/Crm/Objects/Emails/HeaderSelector.php
@@ -1,6 +1,6 @@
 <?php
 /**
- * ApiException
+ * HeaderSelector
  * PHP version 7.4
  *
  * @category Class
@@ -16,7 +16,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -27,10 +27,8 @@
 
 namespace HubSpot\Client\Crm\Objects\Emails;
 
-use \Exception;
-
 /**
- * ApiException Class Doc Comment
+ * HeaderSelector Class Doc Comment
  *
  * @category Class
  * @package  HubSpot\Client\Crm\Objects\Emails
@@ -41,10 +39,11 @@ class HeaderSelector
 {
     /**
      * @param string[] $accept
-     * @param string[] $contentTypes
-     * @return array
+     * @param string   $contentType
+     * @param bool     $isMultipart
+     * @return string[]
      */
-    public function selectHeaders($accept, $contentTypes)
+    public function selectHeaders(array $accept, string $contentType, bool $isMultipart): array
     {
         $headers = [];
 
@@ -53,55 +52,194 @@ public function selectHeaders($accept, $contentTypes)
             $headers['Accept'] = $accept;
         }
 
-        $headers['Content-Type'] = $this->selectContentTypeHeader($contentTypes);
-        return $headers;
-    }
+        if (!$isMultipart) {
+            if($contentType === '') {
+                $contentType = 'application/json';
+            }
 
-    /**
-     * @param string[] $accept
-     * @return array
-     */
-    public function selectHeadersForMultipart($accept)
-    {
-        $headers = $this->selectHeaders($accept, []);
+            $headers['Content-Type'] = $contentType;
+        }
 
-        unset($headers['Content-Type']);
         return $headers;
     }
 
     /**
-     * Return the header 'Accept' based on an array of Accept provided
+     * Return the header 'Accept' based on an array of Accept provided.
      *
      * @param string[] $accept Array of header
      *
      * @return null|string Accept (e.g. application/json)
      */
-    private function selectAcceptHeader($accept)
+    private function selectAcceptHeader(array $accept): ?string
     {
-        if (count($accept) === 0 || (count($accept) === 1 && $accept[0] === '')) {
+        # filter out empty entries
+        $accept = array_filter($accept);
+
+        if (count($accept) === 0) {
             return null;
-        } elseif ($jsonAccept = preg_grep('~(?i)^(application/json|[^;/ \t]+/[^;/ \t]+[+]json)[ \t]*(;.*)?$~', $accept)) {
-            return implode(',', $jsonAccept);
-        } else {
+        }
+
+        # If there's only one Accept header, just use it
+        if (count($accept) === 1) {
+            return reset($accept);
+        }
+
+        # If none of the available Accept headers is of type "json", then just use all them
+        $headersWithJson = preg_grep('~(?i)^(application/json|[^;/ \t]+/[^;/ \t]+[+]json)[ \t]*(;.*)?$~', $accept);
+        if (count($headersWithJson) === 0) {
             return implode(',', $accept);
         }
+
+        # If we got here, then we need add quality values (weight), as described in IETF RFC 9110, Items 12.4.2/12.5.1,
+        # to give the highest priority to json-like headers - recalculating the existing ones, if needed
+        return $this->getAcceptHeaderWithAdjustedWeight($accept, $headersWithJson);
+    }
+
+    /**
+    * Create an Accept header string from the given "Accept" headers array, recalculating all weights
+    *
+    * @param string[] $accept            Array of Accept Headers
+    * @param string[] $headersWithJson   Array of Accept Headers of type "json"
+    *
+    * @return string "Accept" Header (e.g. "application/json, text/html; q=0.9")
+    */
+    private function getAcceptHeaderWithAdjustedWeight(array $accept, array $headersWithJson): string
+    {
+        $processedHeaders = [
+            'withApplicationJson' => [],
+            'withJson' => [],
+            'withoutJson' => [],
+        ];
+
+        foreach ($accept as $header) {
+
+            $headerData = $this->getHeaderAndWeight($header);
+
+            if (stripos($headerData['header'], 'application/json') === 0) {
+                $processedHeaders['withApplicationJson'][] = $headerData;
+            } elseif (in_array($header, $headersWithJson, true)) {
+                $processedHeaders['withJson'][] = $headerData;
+            } else {
+                $processedHeaders['withoutJson'][] = $headerData;
+            }
+        }
+
+        $acceptHeaders = [];
+        $currentWeight = 1000;
+
+        $hasMoreThan28Headers = count($accept) > 28;
+
+        foreach($processedHeaders as $headers) {
+            if (count($headers) > 0) {
+                $acceptHeaders[] = $this->adjustWeight($headers, $currentWeight, $hasMoreThan28Headers);
+            }
+        }
+
+        $acceptHeaders = array_merge(...$acceptHeaders);
+
+        return implode(',', $acceptHeaders);
     }
 
     /**
-     * Return the content type based on an array of content-type provided
+     * Given an Accept header, returns an associative array splitting the header and its weight
      *
-     * @param string[] $contentType Array fo content-type
+     * @param string $header "Accept" Header
      *
-     * @return string Content-Type (e.g. application/json)
+     * @return array with the header and its weight
      */
-    private function selectContentTypeHeader($contentType)
+    private function getHeaderAndWeight(string $header): array
     {
-        if (count($contentType) === 0 || (count($contentType) === 1 && $contentType[0] === '')) {
-            return 'application/json';
-        } elseif (preg_grep("/application\/json/i", $contentType)) {
-            return 'application/json';
+        # matches headers with weight, splitting the header and the weight in $outputArray
+        if (preg_match('/(.*);\s*q=(1(?:\.0+)?|0\.\d+)$/', $header, $outputArray) === 1) {
+            $headerData = [
+                'header' => $outputArray[1],
+                'weight' => (int)($outputArray[2] * 1000),
+            ];
         } else {
-            return implode(',', $contentType);
+            $headerData = [
+                'header' => trim($header),
+                'weight' => 1000,
+            ];
+        }
+
+        return $headerData;
+    }
+
+    /**
+     * @param array[] $headers
+     * @param float   $currentWeight
+     * @param bool    $hasMoreThan28Headers
+     * @return string[] array of adjusted "Accept" headers
+     */
+    private function adjustWeight(array $headers, float &$currentWeight, bool $hasMoreThan28Headers): array
+    {
+        usort($headers, function (array $a, array $b) {
+            return $b['weight'] - $a['weight'];
+        });
+
+        $acceptHeaders = [];
+        foreach ($headers as $index => $header) {
+            if($index > 0 && $headers[$index - 1]['weight'] > $header['weight'])
+            {
+                $currentWeight = $this->getNextWeight($currentWeight, $hasMoreThan28Headers);
+            }
+
+            $weight = $currentWeight;
+
+            $acceptHeaders[] = $this->buildAcceptHeader($header['header'], $weight);
+        }
+
+        $currentWeight = $this->getNextWeight($currentWeight, $hasMoreThan28Headers);
+
+        return $acceptHeaders;
+    }
+
+    /**
+     * @param string $header
+     * @param int    $weight
+     * @return string
+     */
+    private function buildAcceptHeader(string $header, int $weight): string
+    {
+        if($weight === 1000) {
+            return $header;
+        }
+
+        return trim($header, '; ') . ';q=' . rtrim(sprintf('%0.3f', $weight / 1000), '0');
+    }
+
+    /**
+     * Calculate the next weight, based on the current one.
+     *
+     * If there are less than 28 "Accept" headers, the weights will be decreased by 1 on its highest significant digit, using the
+     * following formula:
+     *
+     *    next weight = current weight - 10 ^ (floor(log(current weight - 1)))
+     *
+     *    ( current weight minus ( 10 raised to the power of ( floor of (log to the base 10 of ( current weight minus 1 ) ) ) ) )
+     *
+     * Starting from 1000, this generates the following series:
+     *
+     * 1000, 900, 800, 700, 600, 500, 400, 300, 200, 100, 90, 80, 70, 60, 50, 40, 30, 20, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1
+     *
+     * The resulting quality codes are closer to the average "normal" usage of them (like "q=0.9", "q=0.8" and so on), but it only works
+     * if there is a maximum of 28 "Accept" headers. If we have more than that (which is extremely unlikely), then we fall back to a 1-by-1
+     * decrement rule, which will result in quality codes like "q=0.999", "q=0.998" etc.
+     *
+     * @param int  $currentWeight varying from 1 to 1000 (will be divided by 1000 to build the quality value)
+     * @param bool $hasMoreThan28Headers
+     * @return int
+     */
+    public function getNextWeight(int $currentWeight, bool $hasMoreThan28Headers): int
+    {
+        if ($currentWeight <= 1) {
+            return 1;
+        }
+
+        if ($hasMoreThan28Headers) {
+            return $currentWeight - 1;
         }
+
+        return $currentWeight - 10 ** floor( log10($currentWeight - 1) );
     }
 }
diff --git a/codegen/Crm/Objects/Emails/Model/AssociatedId.php b/codegen/Crm/Objects/Emails/Model/AssociatedId.php
index 61858ef7..43fe80b6 100644
--- a/codegen/Crm/Objects/Emails/Model/AssociatedId.php
+++ b/codegen/Crm/Objects/Emails/Model/AssociatedId.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -73,6 +73,23 @@ class AssociatedId implements ModelInterface, ArrayAccess, \JsonSerializable
         'type' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'id' => false,
+        'type' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -93,6 +110,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -181,8 +250,26 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['id'] = $data['id'] ?? null;
-        $this->container['type'] = $data['type'] ?? null;
+        $this->setIfExists('id', $data ?? [], null);
+        $this->setIfExists('type', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -234,6 +321,9 @@ public function getId()
      */
     public function setId($id)
     {
+        if (is_null($id)) {
+            throw new \InvalidArgumentException('non-nullable id cannot be null');
+        }
         $this->container['id'] = $id;
 
         return $this;
@@ -258,6 +348,9 @@ public function getType()
      */
     public function setType($type)
     {
+        if (is_null($type)) {
+            throw new \InvalidArgumentException('non-nullable type cannot be null');
+        }
         $this->container['type'] = $type;
 
         return $this;
diff --git a/codegen/Crm/Objects/Emails/Model/AssociationSpec.php b/codegen/Crm/Objects/Emails/Model/AssociationSpec.php
index 46e4d8a0..70eae8f9 100644
--- a/codegen/Crm/Objects/Emails/Model/AssociationSpec.php
+++ b/codegen/Crm/Objects/Emails/Model/AssociationSpec.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -73,6 +73,23 @@ class AssociationSpec implements ModelInterface, ArrayAccess, \JsonSerializable
         'association_type_id' => 'int32'
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'association_category' => false,
+        'association_type_id' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -93,6 +110,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -198,8 +267,26 @@ public function getAssociationCategoryAllowableValues()
      */
     public function __construct(array $data = null)
     {
-        $this->container['association_category'] = $data['association_category'] ?? null;
-        $this->container['association_type_id'] = $data['association_type_id'] ?? null;
+        $this->setIfExists('association_category', $data ?? [], null);
+        $this->setIfExists('association_type_id', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -260,6 +347,9 @@ public function getAssociationCategory()
      */
     public function setAssociationCategory($association_category)
     {
+        if (is_null($association_category)) {
+            throw new \InvalidArgumentException('non-nullable association_category cannot be null');
+        }
         $allowedValues = $this->getAssociationCategoryAllowableValues();
         if (!in_array($association_category, $allowedValues, true)) {
             throw new \InvalidArgumentException(
@@ -294,6 +384,9 @@ public function getAssociationTypeId()
      */
     public function setAssociationTypeId($association_type_id)
     {
+        if (is_null($association_type_id)) {
+            throw new \InvalidArgumentException('non-nullable association_type_id cannot be null');
+        }
         $this->container['association_type_id'] = $association_type_id;
 
         return $this;
diff --git a/codegen/Crm/Objects/Emails/Model/BatchInputSimplePublicObjectBatchInput.php b/codegen/Crm/Objects/Emails/Model/BatchInputSimplePublicObjectBatchInput.php
index 5d830dcf..65197691 100644
--- a/codegen/Crm/Objects/Emails/Model/BatchInputSimplePublicObjectBatchInput.php
+++ b/codegen/Crm/Objects/Emails/Model/BatchInputSimplePublicObjectBatchInput.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -71,6 +71,22 @@ class BatchInputSimplePublicObjectBatchInput implements ModelInterface, ArrayAcc
         'inputs' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'inputs' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -91,6 +107,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -176,7 +244,25 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['inputs'] = $data['inputs'] ?? null;
+        $this->setIfExists('inputs', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -225,6 +311,9 @@ public function getInputs()
      */
     public function setInputs($inputs)
     {
+        if (is_null($inputs)) {
+            throw new \InvalidArgumentException('non-nullable inputs cannot be null');
+        }
         $this->container['inputs'] = $inputs;
 
         return $this;
diff --git a/codegen/Crm/Objects/Emails/Model/BatchInputSimplePublicObjectId.php b/codegen/Crm/Objects/Emails/Model/BatchInputSimplePublicObjectId.php
index 53ea9b3a..de72387e 100644
--- a/codegen/Crm/Objects/Emails/Model/BatchInputSimplePublicObjectId.php
+++ b/codegen/Crm/Objects/Emails/Model/BatchInputSimplePublicObjectId.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -71,6 +71,22 @@ class BatchInputSimplePublicObjectId implements ModelInterface, ArrayAccess, \Js
         'inputs' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'inputs' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -91,6 +107,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -176,7 +244,25 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['inputs'] = $data['inputs'] ?? null;
+        $this->setIfExists('inputs', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -225,6 +311,9 @@ public function getInputs()
      */
     public function setInputs($inputs)
     {
+        if (is_null($inputs)) {
+            throw new \InvalidArgumentException('non-nullable inputs cannot be null');
+        }
         $this->container['inputs'] = $inputs;
 
         return $this;
diff --git a/codegen/Crm/Objects/Emails/Model/BatchInputSimplePublicObjectInputForCreate.php b/codegen/Crm/Objects/Emails/Model/BatchInputSimplePublicObjectInputForCreate.php
index 590a215c..8162d22d 100644
--- a/codegen/Crm/Objects/Emails/Model/BatchInputSimplePublicObjectInputForCreate.php
+++ b/codegen/Crm/Objects/Emails/Model/BatchInputSimplePublicObjectInputForCreate.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -71,6 +71,22 @@ class BatchInputSimplePublicObjectInputForCreate implements ModelInterface, Arra
         'inputs' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'inputs' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -91,6 +107,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -176,7 +244,25 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['inputs'] = $data['inputs'] ?? null;
+        $this->setIfExists('inputs', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -225,6 +311,9 @@ public function getInputs()
      */
     public function setInputs($inputs)
     {
+        if (is_null($inputs)) {
+            throw new \InvalidArgumentException('non-nullable inputs cannot be null');
+        }
         $this->container['inputs'] = $inputs;
 
         return $this;
diff --git a/codegen/Crm/Objects/Emails/Model/BatchReadInputSimplePublicObjectId.php b/codegen/Crm/Objects/Emails/Model/BatchReadInputSimplePublicObjectId.php
index 2ef219b1..950eaa0c 100644
--- a/codegen/Crm/Objects/Emails/Model/BatchReadInputSimplePublicObjectId.php
+++ b/codegen/Crm/Objects/Emails/Model/BatchReadInputSimplePublicObjectId.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -77,6 +77,25 @@ class BatchReadInputSimplePublicObjectId implements ModelInterface, ArrayAccess,
         'properties' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'properties_with_history' => false,
+        'id_property' => false,
+        'inputs' => false,
+        'properties' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -97,6 +116,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -191,10 +262,28 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['properties_with_history'] = $data['properties_with_history'] ?? null;
-        $this->container['id_property'] = $data['id_property'] ?? null;
-        $this->container['inputs'] = $data['inputs'] ?? null;
-        $this->container['properties'] = $data['properties'] ?? null;
+        $this->setIfExists('properties_with_history', $data ?? [], null);
+        $this->setIfExists('id_property', $data ?? [], null);
+        $this->setIfExists('inputs', $data ?? [], null);
+        $this->setIfExists('properties', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -249,6 +338,9 @@ public function getPropertiesWithHistory()
      */
     public function setPropertiesWithHistory($properties_with_history)
     {
+        if (is_null($properties_with_history)) {
+            throw new \InvalidArgumentException('non-nullable properties_with_history cannot be null');
+        }
         $this->container['properties_with_history'] = $properties_with_history;
 
         return $this;
@@ -273,6 +365,9 @@ public function getIdProperty()
      */
     public function setIdProperty($id_property)
     {
+        if (is_null($id_property)) {
+            throw new \InvalidArgumentException('non-nullable id_property cannot be null');
+        }
         $this->container['id_property'] = $id_property;
 
         return $this;
@@ -297,6 +392,9 @@ public function getInputs()
      */
     public function setInputs($inputs)
     {
+        if (is_null($inputs)) {
+            throw new \InvalidArgumentException('non-nullable inputs cannot be null');
+        }
         $this->container['inputs'] = $inputs;
 
         return $this;
@@ -321,6 +419,9 @@ public function getProperties()
      */
     public function setProperties($properties)
     {
+        if (is_null($properties)) {
+            throw new \InvalidArgumentException('non-nullable properties cannot be null');
+        }
         $this->container['properties'] = $properties;
 
         return $this;
diff --git a/codegen/Crm/Objects/Emails/Model/BatchResponseSimplePublicObject.php b/codegen/Crm/Objects/Emails/Model/BatchResponseSimplePublicObject.php
index 2a9ef0cd..65a4e57a 100644
--- a/codegen/Crm/Objects/Emails/Model/BatchResponseSimplePublicObject.php
+++ b/codegen/Crm/Objects/Emails/Model/BatchResponseSimplePublicObject.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -81,6 +81,27 @@ class BatchResponseSimplePublicObject implements ModelInterface, ArrayAccess, \J
         'status' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'completed_at' => false,
+        'requested_at' => false,
+        'started_at' => false,
+        'links' => false,
+        'results' => false,
+        'status' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -101,6 +122,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -220,12 +293,30 @@ public function getStatusAllowableValues()
      */
     public function __construct(array $data = null)
     {
-        $this->container['completed_at'] = $data['completed_at'] ?? null;
-        $this->container['requested_at'] = $data['requested_at'] ?? null;
-        $this->container['started_at'] = $data['started_at'] ?? null;
-        $this->container['links'] = $data['links'] ?? null;
-        $this->container['results'] = $data['results'] ?? null;
-        $this->container['status'] = $data['status'] ?? null;
+        $this->setIfExists('completed_at', $data ?? [], null);
+        $this->setIfExists('requested_at', $data ?? [], null);
+        $this->setIfExists('started_at', $data ?? [], null);
+        $this->setIfExists('links', $data ?? [], null);
+        $this->setIfExists('results', $data ?? [], null);
+        $this->setIfExists('status', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -292,6 +383,9 @@ public function getCompletedAt()
      */
     public function setCompletedAt($completed_at)
     {
+        if (is_null($completed_at)) {
+            throw new \InvalidArgumentException('non-nullable completed_at cannot be null');
+        }
         $this->container['completed_at'] = $completed_at;
 
         return $this;
@@ -316,6 +410,9 @@ public function getRequestedAt()
      */
     public function setRequestedAt($requested_at)
     {
+        if (is_null($requested_at)) {
+            throw new \InvalidArgumentException('non-nullable requested_at cannot be null');
+        }
         $this->container['requested_at'] = $requested_at;
 
         return $this;
@@ -340,6 +437,9 @@ public function getStartedAt()
      */
     public function setStartedAt($started_at)
     {
+        if (is_null($started_at)) {
+            throw new \InvalidArgumentException('non-nullable started_at cannot be null');
+        }
         $this->container['started_at'] = $started_at;
 
         return $this;
@@ -364,6 +464,9 @@ public function getLinks()
      */
     public function setLinks($links)
     {
+        if (is_null($links)) {
+            throw new \InvalidArgumentException('non-nullable links cannot be null');
+        }
         $this->container['links'] = $links;
 
         return $this;
@@ -388,6 +491,9 @@ public function getResults()
      */
     public function setResults($results)
     {
+        if (is_null($results)) {
+            throw new \InvalidArgumentException('non-nullable results cannot be null');
+        }
         $this->container['results'] = $results;
 
         return $this;
@@ -412,6 +518,9 @@ public function getStatus()
      */
     public function setStatus($status)
     {
+        if (is_null($status)) {
+            throw new \InvalidArgumentException('non-nullable status cannot be null');
+        }
         $allowedValues = $this->getStatusAllowableValues();
         if (!in_array($status, $allowedValues, true)) {
             throw new \InvalidArgumentException(
diff --git a/codegen/Crm/Objects/Emails/Model/BatchResponseSimplePublicObjectWithErrors.php b/codegen/Crm/Objects/Emails/Model/BatchResponseSimplePublicObjectWithErrors.php
index e339f856..47b085d3 100644
--- a/codegen/Crm/Objects/Emails/Model/BatchResponseSimplePublicObjectWithErrors.php
+++ b/codegen/Crm/Objects/Emails/Model/BatchResponseSimplePublicObjectWithErrors.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -85,6 +85,29 @@ class BatchResponseSimplePublicObjectWithErrors implements ModelInterface, Array
         'status' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'completed_at' => false,
+        'num_errors' => false,
+        'requested_at' => false,
+        'started_at' => false,
+        'links' => false,
+        'results' => false,
+        'errors' => false,
+        'status' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -105,6 +128,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -230,14 +305,32 @@ public function getStatusAllowableValues()
      */
     public function __construct(array $data = null)
     {
-        $this->container['completed_at'] = $data['completed_at'] ?? null;
-        $this->container['num_errors'] = $data['num_errors'] ?? null;
-        $this->container['requested_at'] = $data['requested_at'] ?? null;
-        $this->container['started_at'] = $data['started_at'] ?? null;
-        $this->container['links'] = $data['links'] ?? null;
-        $this->container['results'] = $data['results'] ?? null;
-        $this->container['errors'] = $data['errors'] ?? null;
-        $this->container['status'] = $data['status'] ?? null;
+        $this->setIfExists('completed_at', $data ?? [], null);
+        $this->setIfExists('num_errors', $data ?? [], null);
+        $this->setIfExists('requested_at', $data ?? [], null);
+        $this->setIfExists('started_at', $data ?? [], null);
+        $this->setIfExists('links', $data ?? [], null);
+        $this->setIfExists('results', $data ?? [], null);
+        $this->setIfExists('errors', $data ?? [], null);
+        $this->setIfExists('status', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -304,6 +397,9 @@ public function getCompletedAt()
      */
     public function setCompletedAt($completed_at)
     {
+        if (is_null($completed_at)) {
+            throw new \InvalidArgumentException('non-nullable completed_at cannot be null');
+        }
         $this->container['completed_at'] = $completed_at;
 
         return $this;
@@ -328,6 +424,9 @@ public function getNumErrors()
      */
     public function setNumErrors($num_errors)
     {
+        if (is_null($num_errors)) {
+            throw new \InvalidArgumentException('non-nullable num_errors cannot be null');
+        }
         $this->container['num_errors'] = $num_errors;
 
         return $this;
@@ -352,6 +451,9 @@ public function getRequestedAt()
      */
     public function setRequestedAt($requested_at)
     {
+        if (is_null($requested_at)) {
+            throw new \InvalidArgumentException('non-nullable requested_at cannot be null');
+        }
         $this->container['requested_at'] = $requested_at;
 
         return $this;
@@ -376,6 +478,9 @@ public function getStartedAt()
      */
     public function setStartedAt($started_at)
     {
+        if (is_null($started_at)) {
+            throw new \InvalidArgumentException('non-nullable started_at cannot be null');
+        }
         $this->container['started_at'] = $started_at;
 
         return $this;
@@ -400,6 +505,9 @@ public function getLinks()
      */
     public function setLinks($links)
     {
+        if (is_null($links)) {
+            throw new \InvalidArgumentException('non-nullable links cannot be null');
+        }
         $this->container['links'] = $links;
 
         return $this;
@@ -424,6 +532,9 @@ public function getResults()
      */
     public function setResults($results)
     {
+        if (is_null($results)) {
+            throw new \InvalidArgumentException('non-nullable results cannot be null');
+        }
         $this->container['results'] = $results;
 
         return $this;
@@ -448,6 +559,9 @@ public function getErrors()
      */
     public function setErrors($errors)
     {
+        if (is_null($errors)) {
+            throw new \InvalidArgumentException('non-nullable errors cannot be null');
+        }
         $this->container['errors'] = $errors;
 
         return $this;
@@ -472,6 +586,9 @@ public function getStatus()
      */
     public function setStatus($status)
     {
+        if (is_null($status)) {
+            throw new \InvalidArgumentException('non-nullable status cannot be null');
+        }
         $allowedValues = $this->getStatusAllowableValues();
         if (!in_array($status, $allowedValues, true)) {
             throw new \InvalidArgumentException(
diff --git a/codegen/Crm/Objects/Emails/Model/CollectionResponseAssociatedId.php b/codegen/Crm/Objects/Emails/Model/CollectionResponseAssociatedId.php
index e377e086..59264036 100644
--- a/codegen/Crm/Objects/Emails/Model/CollectionResponseAssociatedId.php
+++ b/codegen/Crm/Objects/Emails/Model/CollectionResponseAssociatedId.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -73,6 +73,23 @@ class CollectionResponseAssociatedId implements ModelInterface, ArrayAccess, \Js
         'results' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'paging' => false,
+        'results' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -93,6 +110,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -181,8 +250,26 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['paging'] = $data['paging'] ?? null;
-        $this->container['results'] = $data['results'] ?? null;
+        $this->setIfExists('paging', $data ?? [], null);
+        $this->setIfExists('results', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -231,6 +318,9 @@ public function getPaging()
      */
     public function setPaging($paging)
     {
+        if (is_null($paging)) {
+            throw new \InvalidArgumentException('non-nullable paging cannot be null');
+        }
         $this->container['paging'] = $paging;
 
         return $this;
@@ -255,6 +345,9 @@ public function getResults()
      */
     public function setResults($results)
     {
+        if (is_null($results)) {
+            throw new \InvalidArgumentException('non-nullable results cannot be null');
+        }
         $this->container['results'] = $results;
 
         return $this;
diff --git a/codegen/Crm/Objects/Emails/Model/CollectionResponseSimplePublicObjectWithAssociationsForwardPaging.php b/codegen/Crm/Objects/Emails/Model/CollectionResponseSimplePublicObjectWithAssociationsForwardPaging.php
index 472395e4..514819b2 100644
--- a/codegen/Crm/Objects/Emails/Model/CollectionResponseSimplePublicObjectWithAssociationsForwardPaging.php
+++ b/codegen/Crm/Objects/Emails/Model/CollectionResponseSimplePublicObjectWithAssociationsForwardPaging.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -73,6 +73,23 @@ class CollectionResponseSimplePublicObjectWithAssociationsForwardPaging implemen
         'results' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'paging' => false,
+        'results' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -93,6 +110,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -181,8 +250,26 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['paging'] = $data['paging'] ?? null;
-        $this->container['results'] = $data['results'] ?? null;
+        $this->setIfExists('paging', $data ?? [], null);
+        $this->setIfExists('results', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -231,6 +318,9 @@ public function getPaging()
      */
     public function setPaging($paging)
     {
+        if (is_null($paging)) {
+            throw new \InvalidArgumentException('non-nullable paging cannot be null');
+        }
         $this->container['paging'] = $paging;
 
         return $this;
@@ -255,6 +345,9 @@ public function getResults()
      */
     public function setResults($results)
     {
+        if (is_null($results)) {
+            throw new \InvalidArgumentException('non-nullable results cannot be null');
+        }
         $this->container['results'] = $results;
 
         return $this;
diff --git a/codegen/Crm/Objects/Emails/Model/CollectionResponseWithTotalSimplePublicObjectForwardPaging.php b/codegen/Crm/Objects/Emails/Model/CollectionResponseWithTotalSimplePublicObjectForwardPaging.php
index 2dde787e..5915b8f2 100644
--- a/codegen/Crm/Objects/Emails/Model/CollectionResponseWithTotalSimplePublicObjectForwardPaging.php
+++ b/codegen/Crm/Objects/Emails/Model/CollectionResponseWithTotalSimplePublicObjectForwardPaging.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -75,6 +75,24 @@ class CollectionResponseWithTotalSimplePublicObjectForwardPaging implements Mode
         'results' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'total' => false,
+        'paging' => false,
+        'results' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -95,6 +113,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -186,9 +256,27 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['total'] = $data['total'] ?? null;
-        $this->container['paging'] = $data['paging'] ?? null;
-        $this->container['results'] = $data['results'] ?? null;
+        $this->setIfExists('total', $data ?? [], null);
+        $this->setIfExists('paging', $data ?? [], null);
+        $this->setIfExists('results', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -240,6 +328,9 @@ public function getTotal()
      */
     public function setTotal($total)
     {
+        if (is_null($total)) {
+            throw new \InvalidArgumentException('non-nullable total cannot be null');
+        }
         $this->container['total'] = $total;
 
         return $this;
@@ -264,6 +355,9 @@ public function getPaging()
      */
     public function setPaging($paging)
     {
+        if (is_null($paging)) {
+            throw new \InvalidArgumentException('non-nullable paging cannot be null');
+        }
         $this->container['paging'] = $paging;
 
         return $this;
@@ -288,6 +382,9 @@ public function getResults()
      */
     public function setResults($results)
     {
+        if (is_null($results)) {
+            throw new \InvalidArgumentException('non-nullable results cannot be null');
+        }
         $this->container['results'] = $results;
 
         return $this;
diff --git a/codegen/Crm/Objects/Emails/Model/Error.php b/codegen/Crm/Objects/Emails/Model/Error.php
index d84d1723..bf4130af 100644
--- a/codegen/Crm/Objects/Emails/Model/Error.php
+++ b/codegen/Crm/Objects/Emails/Model/Error.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -83,6 +83,28 @@ class Error implements ModelInterface, ArrayAccess, \JsonSerializable
         'errors' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'sub_category' => false,
+        'context' => false,
+        'correlation_id' => false,
+        'links' => false,
+        'message' => false,
+        'category' => false,
+        'errors' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -103,6 +125,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -206,13 +280,31 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['sub_category'] = $data['sub_category'] ?? null;
-        $this->container['context'] = $data['context'] ?? null;
-        $this->container['correlation_id'] = $data['correlation_id'] ?? null;
-        $this->container['links'] = $data['links'] ?? null;
-        $this->container['message'] = $data['message'] ?? null;
-        $this->container['category'] = $data['category'] ?? null;
-        $this->container['errors'] = $data['errors'] ?? null;
+        $this->setIfExists('sub_category', $data ?? [], null);
+        $this->setIfExists('context', $data ?? [], null);
+        $this->setIfExists('correlation_id', $data ?? [], null);
+        $this->setIfExists('links', $data ?? [], null);
+        $this->setIfExists('message', $data ?? [], null);
+        $this->setIfExists('category', $data ?? [], null);
+        $this->setIfExists('errors', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -267,6 +359,9 @@ public function getSubCategory()
      */
     public function setSubCategory($sub_category)
     {
+        if (is_null($sub_category)) {
+            throw new \InvalidArgumentException('non-nullable sub_category cannot be null');
+        }
         $this->container['sub_category'] = $sub_category;
 
         return $this;
@@ -291,6 +386,9 @@ public function getContext()
      */
     public function setContext($context)
     {
+        if (is_null($context)) {
+            throw new \InvalidArgumentException('non-nullable context cannot be null');
+        }
         $this->container['context'] = $context;
 
         return $this;
@@ -315,6 +413,9 @@ public function getCorrelationId()
      */
     public function setCorrelationId($correlation_id)
     {
+        if (is_null($correlation_id)) {
+            throw new \InvalidArgumentException('non-nullable correlation_id cannot be null');
+        }
         $this->container['correlation_id'] = $correlation_id;
 
         return $this;
@@ -339,6 +440,9 @@ public function getLinks()
      */
     public function setLinks($links)
     {
+        if (is_null($links)) {
+            throw new \InvalidArgumentException('non-nullable links cannot be null');
+        }
         $this->container['links'] = $links;
 
         return $this;
@@ -363,6 +467,9 @@ public function getMessage()
      */
     public function setMessage($message)
     {
+        if (is_null($message)) {
+            throw new \InvalidArgumentException('non-nullable message cannot be null');
+        }
         $this->container['message'] = $message;
 
         return $this;
@@ -387,6 +494,9 @@ public function getCategory()
      */
     public function setCategory($category)
     {
+        if (is_null($category)) {
+            throw new \InvalidArgumentException('non-nullable category cannot be null');
+        }
         $this->container['category'] = $category;
 
         return $this;
@@ -411,6 +521,9 @@ public function getErrors()
      */
     public function setErrors($errors)
     {
+        if (is_null($errors)) {
+            throw new \InvalidArgumentException('non-nullable errors cannot be null');
+        }
         $this->container['errors'] = $errors;
 
         return $this;
diff --git a/codegen/Crm/Objects/Emails/Model/ErrorDetail.php b/codegen/Crm/Objects/Emails/Model/ErrorDetail.php
index 776dc3ca..0c302d89 100644
--- a/codegen/Crm/Objects/Emails/Model/ErrorDetail.php
+++ b/codegen/Crm/Objects/Emails/Model/ErrorDetail.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -79,6 +79,26 @@ class ErrorDetail implements ModelInterface, ArrayAccess, \JsonSerializable
         'message' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'sub_category' => false,
+        'code' => false,
+        'in' => false,
+        'context' => false,
+        'message' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -99,6 +119,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -196,11 +268,29 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['sub_category'] = $data['sub_category'] ?? null;
-        $this->container['code'] = $data['code'] ?? null;
-        $this->container['in'] = $data['in'] ?? null;
-        $this->container['context'] = $data['context'] ?? null;
-        $this->container['message'] = $data['message'] ?? null;
+        $this->setIfExists('sub_category', $data ?? [], null);
+        $this->setIfExists('code', $data ?? [], null);
+        $this->setIfExists('in', $data ?? [], null);
+        $this->setIfExists('context', $data ?? [], null);
+        $this->setIfExists('message', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -249,6 +339,9 @@ public function getSubCategory()
      */
     public function setSubCategory($sub_category)
     {
+        if (is_null($sub_category)) {
+            throw new \InvalidArgumentException('non-nullable sub_category cannot be null');
+        }
         $this->container['sub_category'] = $sub_category;
 
         return $this;
@@ -273,6 +366,9 @@ public function getCode()
      */
     public function setCode($code)
     {
+        if (is_null($code)) {
+            throw new \InvalidArgumentException('non-nullable code cannot be null');
+        }
         $this->container['code'] = $code;
 
         return $this;
@@ -297,6 +393,9 @@ public function getIn()
      */
     public function setIn($in)
     {
+        if (is_null($in)) {
+            throw new \InvalidArgumentException('non-nullable in cannot be null');
+        }
         $this->container['in'] = $in;
 
         return $this;
@@ -321,6 +420,9 @@ public function getContext()
      */
     public function setContext($context)
     {
+        if (is_null($context)) {
+            throw new \InvalidArgumentException('non-nullable context cannot be null');
+        }
         $this->container['context'] = $context;
 
         return $this;
@@ -345,6 +447,9 @@ public function getMessage()
      */
     public function setMessage($message)
     {
+        if (is_null($message)) {
+            throw new \InvalidArgumentException('non-nullable message cannot be null');
+        }
         $this->container['message'] = $message;
 
         return $this;
diff --git a/codegen/Crm/Objects/Emails/Model/Filter.php b/codegen/Crm/Objects/Emails/Model/Filter.php
index 793031ba..4c93fd12 100644
--- a/codegen/Crm/Objects/Emails/Model/Filter.php
+++ b/codegen/Crm/Objects/Emails/Model/Filter.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -79,6 +79,26 @@ class Filter implements ModelInterface, ArrayAccess, \JsonSerializable
         'operator' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'high_value' => false,
+        'property_name' => false,
+        'values' => false,
+        'value' => false,
+        'operator' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -99,6 +119,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -233,11 +305,29 @@ public function getOperatorAllowableValues()
      */
     public function __construct(array $data = null)
     {
-        $this->container['high_value'] = $data['high_value'] ?? null;
-        $this->container['property_name'] = $data['property_name'] ?? null;
-        $this->container['values'] = $data['values'] ?? null;
-        $this->container['value'] = $data['value'] ?? null;
-        $this->container['operator'] = $data['operator'] ?? null;
+        $this->setIfExists('high_value', $data ?? [], null);
+        $this->setIfExists('property_name', $data ?? [], null);
+        $this->setIfExists('values', $data ?? [], null);
+        $this->setIfExists('value', $data ?? [], null);
+        $this->setIfExists('operator', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -298,6 +388,9 @@ public function getHighValue()
      */
     public function setHighValue($high_value)
     {
+        if (is_null($high_value)) {
+            throw new \InvalidArgumentException('non-nullable high_value cannot be null');
+        }
         $this->container['high_value'] = $high_value;
 
         return $this;
@@ -322,6 +415,9 @@ public function getPropertyName()
      */
     public function setPropertyName($property_name)
     {
+        if (is_null($property_name)) {
+            throw new \InvalidArgumentException('non-nullable property_name cannot be null');
+        }
         $this->container['property_name'] = $property_name;
 
         return $this;
@@ -346,6 +442,9 @@ public function getValues()
      */
     public function setValues($values)
     {
+        if (is_null($values)) {
+            throw new \InvalidArgumentException('non-nullable values cannot be null');
+        }
         $this->container['values'] = $values;
 
         return $this;
@@ -370,6 +469,9 @@ public function getValue()
      */
     public function setValue($value)
     {
+        if (is_null($value)) {
+            throw new \InvalidArgumentException('non-nullable value cannot be null');
+        }
         $this->container['value'] = $value;
 
         return $this;
@@ -394,6 +496,9 @@ public function getOperator()
      */
     public function setOperator($operator)
     {
+        if (is_null($operator)) {
+            throw new \InvalidArgumentException('non-nullable operator cannot be null');
+        }
         $allowedValues = $this->getOperatorAllowableValues();
         if (!in_array($operator, $allowedValues, true)) {
             throw new \InvalidArgumentException(
diff --git a/codegen/Crm/Objects/Emails/Model/FilterGroup.php b/codegen/Crm/Objects/Emails/Model/FilterGroup.php
index 8bac683b..2cf429b7 100644
--- a/codegen/Crm/Objects/Emails/Model/FilterGroup.php
+++ b/codegen/Crm/Objects/Emails/Model/FilterGroup.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -71,6 +71,22 @@ class FilterGroup implements ModelInterface, ArrayAccess, \JsonSerializable
         'filters' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'filters' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -91,6 +107,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -176,7 +244,25 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['filters'] = $data['filters'] ?? null;
+        $this->setIfExists('filters', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -225,6 +311,9 @@ public function getFilters()
      */
     public function setFilters($filters)
     {
+        if (is_null($filters)) {
+            throw new \InvalidArgumentException('non-nullable filters cannot be null');
+        }
         $this->container['filters'] = $filters;
 
         return $this;
diff --git a/codegen/Crm/Objects/Emails/Model/ForwardPaging.php b/codegen/Crm/Objects/Emails/Model/ForwardPaging.php
index 2f981885..d6b1ba1b 100644
--- a/codegen/Crm/Objects/Emails/Model/ForwardPaging.php
+++ b/codegen/Crm/Objects/Emails/Model/ForwardPaging.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -71,6 +71,22 @@ class ForwardPaging implements ModelInterface, ArrayAccess, \JsonSerializable
         'next' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'next' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -91,6 +107,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -176,7 +244,25 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['next'] = $data['next'] ?? null;
+        $this->setIfExists('next', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -222,6 +308,9 @@ public function getNext()
      */
     public function setNext($next)
     {
+        if (is_null($next)) {
+            throw new \InvalidArgumentException('non-nullable next cannot be null');
+        }
         $this->container['next'] = $next;
 
         return $this;
diff --git a/codegen/Crm/Objects/Emails/Model/ModelInterface.php b/codegen/Crm/Objects/Emails/Model/ModelInterface.php
index afe8e3f7..c275705c 100644
--- a/codegen/Crm/Objects/Emails/Model/ModelInterface.php
+++ b/codegen/Crm/Objects/Emails/Model/ModelInterface.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -92,4 +92,20 @@ public function listInvalidProperties();
      * @return bool
      */
     public function valid();
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool;
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool;
 }
diff --git a/codegen/Crm/Objects/Emails/Model/NextPage.php b/codegen/Crm/Objects/Emails/Model/NextPage.php
index 9a534360..d1d635ed 100644
--- a/codegen/Crm/Objects/Emails/Model/NextPage.php
+++ b/codegen/Crm/Objects/Emails/Model/NextPage.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -73,6 +73,23 @@ class NextPage implements ModelInterface, ArrayAccess, \JsonSerializable
         'after' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'link' => false,
+        'after' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -93,6 +110,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -181,8 +250,26 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['link'] = $data['link'] ?? null;
-        $this->container['after'] = $data['after'] ?? null;
+        $this->setIfExists('link', $data ?? [], null);
+        $this->setIfExists('after', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -231,6 +318,9 @@ public function getLink()
      */
     public function setLink($link)
     {
+        if (is_null($link)) {
+            throw new \InvalidArgumentException('non-nullable link cannot be null');
+        }
         $this->container['link'] = $link;
 
         return $this;
@@ -255,6 +345,9 @@ public function getAfter()
      */
     public function setAfter($after)
     {
+        if (is_null($after)) {
+            throw new \InvalidArgumentException('non-nullable after cannot be null');
+        }
         $this->container['after'] = $after;
 
         return $this;
diff --git a/codegen/Crm/Objects/Emails/Model/Paging.php b/codegen/Crm/Objects/Emails/Model/Paging.php
index bb9a43a7..4bb169d1 100644
--- a/codegen/Crm/Objects/Emails/Model/Paging.php
+++ b/codegen/Crm/Objects/Emails/Model/Paging.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -73,6 +73,23 @@ class Paging implements ModelInterface, ArrayAccess, \JsonSerializable
         'prev' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'next' => false,
+        'prev' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -93,6 +110,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -181,8 +250,26 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['next'] = $data['next'] ?? null;
-        $this->container['prev'] = $data['prev'] ?? null;
+        $this->setIfExists('next', $data ?? [], null);
+        $this->setIfExists('prev', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -228,6 +315,9 @@ public function getNext()
      */
     public function setNext($next)
     {
+        if (is_null($next)) {
+            throw new \InvalidArgumentException('non-nullable next cannot be null');
+        }
         $this->container['next'] = $next;
 
         return $this;
@@ -252,6 +342,9 @@ public function getPrev()
      */
     public function setPrev($prev)
     {
+        if (is_null($prev)) {
+            throw new \InvalidArgumentException('non-nullable prev cannot be null');
+        }
         $this->container['prev'] = $prev;
 
         return $this;
diff --git a/codegen/Crm/Objects/Emails/Model/PreviousPage.php b/codegen/Crm/Objects/Emails/Model/PreviousPage.php
index 10d1603f..249006f7 100644
--- a/codegen/Crm/Objects/Emails/Model/PreviousPage.php
+++ b/codegen/Crm/Objects/Emails/Model/PreviousPage.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -73,6 +73,23 @@ class PreviousPage implements ModelInterface, ArrayAccess, \JsonSerializable
         'link' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'before' => false,
+        'link' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -93,6 +110,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -181,8 +250,26 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['before'] = $data['before'] ?? null;
-        $this->container['link'] = $data['link'] ?? null;
+        $this->setIfExists('before', $data ?? [], null);
+        $this->setIfExists('link', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -231,6 +318,9 @@ public function getBefore()
      */
     public function setBefore($before)
     {
+        if (is_null($before)) {
+            throw new \InvalidArgumentException('non-nullable before cannot be null');
+        }
         $this->container['before'] = $before;
 
         return $this;
@@ -255,6 +345,9 @@ public function getLink()
      */
     public function setLink($link)
     {
+        if (is_null($link)) {
+            throw new \InvalidArgumentException('non-nullable link cannot be null');
+        }
         $this->container['link'] = $link;
 
         return $this;
diff --git a/codegen/Crm/Objects/Emails/Model/PublicAssociationsForObject.php b/codegen/Crm/Objects/Emails/Model/PublicAssociationsForObject.php
index f2fcfc23..98baafe9 100644
--- a/codegen/Crm/Objects/Emails/Model/PublicAssociationsForObject.php
+++ b/codegen/Crm/Objects/Emails/Model/PublicAssociationsForObject.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -73,6 +73,23 @@ class PublicAssociationsForObject implements ModelInterface, ArrayAccess, \JsonS
         'to' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'types' => false,
+        'to' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -93,6 +110,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -181,8 +250,26 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['types'] = $data['types'] ?? null;
-        $this->container['to'] = $data['to'] ?? null;
+        $this->setIfExists('types', $data ?? [], null);
+        $this->setIfExists('to', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -234,6 +321,9 @@ public function getTypes()
      */
     public function setTypes($types)
     {
+        if (is_null($types)) {
+            throw new \InvalidArgumentException('non-nullable types cannot be null');
+        }
         $this->container['types'] = $types;
 
         return $this;
@@ -258,6 +348,9 @@ public function getTo()
      */
     public function setTo($to)
     {
+        if (is_null($to)) {
+            throw new \InvalidArgumentException('non-nullable to cannot be null');
+        }
         $this->container['to'] = $to;
 
         return $this;
diff --git a/codegen/Crm/Objects/Emails/Model/PublicGdprDeleteInput.php b/codegen/Crm/Objects/Emails/Model/PublicGdprDeleteInput.php
index c78951c3..6fd5443c 100644
--- a/codegen/Crm/Objects/Emails/Model/PublicGdprDeleteInput.php
+++ b/codegen/Crm/Objects/Emails/Model/PublicGdprDeleteInput.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -73,6 +73,23 @@ class PublicGdprDeleteInput implements ModelInterface, ArrayAccess, \JsonSeriali
         'object_id' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'id_property' => false,
+        'object_id' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -93,6 +110,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -181,8 +250,26 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['id_property'] = $data['id_property'] ?? null;
-        $this->container['object_id'] = $data['object_id'] ?? null;
+        $this->setIfExists('id_property', $data ?? [], null);
+        $this->setIfExists('object_id', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -231,6 +318,9 @@ public function getIdProperty()
      */
     public function setIdProperty($id_property)
     {
+        if (is_null($id_property)) {
+            throw new \InvalidArgumentException('non-nullable id_property cannot be null');
+        }
         $this->container['id_property'] = $id_property;
 
         return $this;
@@ -255,6 +345,9 @@ public function getObjectId()
      */
     public function setObjectId($object_id)
     {
+        if (is_null($object_id)) {
+            throw new \InvalidArgumentException('non-nullable object_id cannot be null');
+        }
         $this->container['object_id'] = $object_id;
 
         return $this;
diff --git a/codegen/Crm/Objects/Emails/Model/PublicMergeInput.php b/codegen/Crm/Objects/Emails/Model/PublicMergeInput.php
index b13b28b5..a7e00bb6 100644
--- a/codegen/Crm/Objects/Emails/Model/PublicMergeInput.php
+++ b/codegen/Crm/Objects/Emails/Model/PublicMergeInput.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -73,6 +73,23 @@ class PublicMergeInput implements ModelInterface, ArrayAccess, \JsonSerializable
         'primary_object_id' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'object_id_to_merge' => false,
+        'primary_object_id' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -93,6 +110,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -181,8 +250,26 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['object_id_to_merge'] = $data['object_id_to_merge'] ?? null;
-        $this->container['primary_object_id'] = $data['primary_object_id'] ?? null;
+        $this->setIfExists('object_id_to_merge', $data ?? [], null);
+        $this->setIfExists('primary_object_id', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -234,6 +321,9 @@ public function getObjectIdToMerge()
      */
     public function setObjectIdToMerge($object_id_to_merge)
     {
+        if (is_null($object_id_to_merge)) {
+            throw new \InvalidArgumentException('non-nullable object_id_to_merge cannot be null');
+        }
         $this->container['object_id_to_merge'] = $object_id_to_merge;
 
         return $this;
@@ -258,6 +348,9 @@ public function getPrimaryObjectId()
      */
     public function setPrimaryObjectId($primary_object_id)
     {
+        if (is_null($primary_object_id)) {
+            throw new \InvalidArgumentException('non-nullable primary_object_id cannot be null');
+        }
         $this->container['primary_object_id'] = $primary_object_id;
 
         return $this;
diff --git a/codegen/Crm/Objects/Emails/Model/PublicObjectId.php b/codegen/Crm/Objects/Emails/Model/PublicObjectId.php
index efffd8f4..dc2f261e 100644
--- a/codegen/Crm/Objects/Emails/Model/PublicObjectId.php
+++ b/codegen/Crm/Objects/Emails/Model/PublicObjectId.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -71,6 +71,22 @@ class PublicObjectId implements ModelInterface, ArrayAccess, \JsonSerializable
         'id' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'id' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -91,6 +107,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -176,7 +244,25 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['id'] = $data['id'] ?? null;
+        $this->setIfExists('id', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -225,6 +311,9 @@ public function getId()
      */
     public function setId($id)
     {
+        if (is_null($id)) {
+            throw new \InvalidArgumentException('non-nullable id cannot be null');
+        }
         $this->container['id'] = $id;
 
         return $this;
diff --git a/codegen/Crm/Objects/Emails/Model/PublicObjectSearchRequest.php b/codegen/Crm/Objects/Emails/Model/PublicObjectSearchRequest.php
index 20dbe60b..ab6b0942 100644
--- a/codegen/Crm/Objects/Emails/Model/PublicObjectSearchRequest.php
+++ b/codegen/Crm/Objects/Emails/Model/PublicObjectSearchRequest.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -81,6 +81,27 @@ class PublicObjectSearchRequest implements ModelInterface, ArrayAccess, \JsonSer
         'filter_groups' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'query' => false,
+        'limit' => false,
+        'after' => false,
+        'sorts' => false,
+        'properties' => false,
+        'filter_groups' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -101,6 +122,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -201,12 +274,30 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['query'] = $data['query'] ?? null;
-        $this->container['limit'] = $data['limit'] ?? null;
-        $this->container['after'] = $data['after'] ?? null;
-        $this->container['sorts'] = $data['sorts'] ?? null;
-        $this->container['properties'] = $data['properties'] ?? null;
-        $this->container['filter_groups'] = $data['filter_groups'] ?? null;
+        $this->setIfExists('query', $data ?? [], null);
+        $this->setIfExists('limit', $data ?? [], null);
+        $this->setIfExists('after', $data ?? [], null);
+        $this->setIfExists('sorts', $data ?? [], null);
+        $this->setIfExists('properties', $data ?? [], null);
+        $this->setIfExists('filter_groups', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -267,6 +358,9 @@ public function getQuery()
      */
     public function setQuery($query)
     {
+        if (is_null($query)) {
+            throw new \InvalidArgumentException('non-nullable query cannot be null');
+        }
         $this->container['query'] = $query;
 
         return $this;
@@ -291,6 +385,9 @@ public function getLimit()
      */
     public function setLimit($limit)
     {
+        if (is_null($limit)) {
+            throw new \InvalidArgumentException('non-nullable limit cannot be null');
+        }
         $this->container['limit'] = $limit;
 
         return $this;
@@ -315,6 +412,9 @@ public function getAfter()
      */
     public function setAfter($after)
     {
+        if (is_null($after)) {
+            throw new \InvalidArgumentException('non-nullable after cannot be null');
+        }
         $this->container['after'] = $after;
 
         return $this;
@@ -339,6 +439,9 @@ public function getSorts()
      */
     public function setSorts($sorts)
     {
+        if (is_null($sorts)) {
+            throw new \InvalidArgumentException('non-nullable sorts cannot be null');
+        }
         $this->container['sorts'] = $sorts;
 
         return $this;
@@ -363,6 +466,9 @@ public function getProperties()
      */
     public function setProperties($properties)
     {
+        if (is_null($properties)) {
+            throw new \InvalidArgumentException('non-nullable properties cannot be null');
+        }
         $this->container['properties'] = $properties;
 
         return $this;
@@ -387,6 +493,9 @@ public function getFilterGroups()
      */
     public function setFilterGroups($filter_groups)
     {
+        if (is_null($filter_groups)) {
+            throw new \InvalidArgumentException('non-nullable filter_groups cannot be null');
+        }
         $this->container['filter_groups'] = $filter_groups;
 
         return $this;
diff --git a/codegen/Crm/Objects/Emails/Model/SimplePublicObject.php b/codegen/Crm/Objects/Emails/Model/SimplePublicObject.php
index a170fe9c..74b5e79d 100644
--- a/codegen/Crm/Objects/Emails/Model/SimplePublicObject.php
+++ b/codegen/Crm/Objects/Emails/Model/SimplePublicObject.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -83,6 +83,28 @@ class SimplePublicObject implements ModelInterface, ArrayAccess, \JsonSerializab
         'updated_at' => 'date-time'
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'created_at' => false,
+        'archived' => false,
+        'archived_at' => false,
+        'properties_with_history' => false,
+        'id' => false,
+        'properties' => false,
+        'updated_at' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -103,6 +125,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -206,13 +280,31 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['created_at'] = $data['created_at'] ?? null;
-        $this->container['archived'] = $data['archived'] ?? null;
-        $this->container['archived_at'] = $data['archived_at'] ?? null;
-        $this->container['properties_with_history'] = $data['properties_with_history'] ?? null;
-        $this->container['id'] = $data['id'] ?? null;
-        $this->container['properties'] = $data['properties'] ?? null;
-        $this->container['updated_at'] = $data['updated_at'] ?? null;
+        $this->setIfExists('created_at', $data ?? [], null);
+        $this->setIfExists('archived', $data ?? [], null);
+        $this->setIfExists('archived_at', $data ?? [], null);
+        $this->setIfExists('properties_with_history', $data ?? [], null);
+        $this->setIfExists('id', $data ?? [], null);
+        $this->setIfExists('properties', $data ?? [], null);
+        $this->setIfExists('updated_at', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -270,6 +362,9 @@ public function getCreatedAt()
      */
     public function setCreatedAt($created_at)
     {
+        if (is_null($created_at)) {
+            throw new \InvalidArgumentException('non-nullable created_at cannot be null');
+        }
         $this->container['created_at'] = $created_at;
 
         return $this;
@@ -294,6 +389,9 @@ public function getArchived()
      */
     public function setArchived($archived)
     {
+        if (is_null($archived)) {
+            throw new \InvalidArgumentException('non-nullable archived cannot be null');
+        }
         $this->container['archived'] = $archived;
 
         return $this;
@@ -318,6 +416,9 @@ public function getArchivedAt()
      */
     public function setArchivedAt($archived_at)
     {
+        if (is_null($archived_at)) {
+            throw new \InvalidArgumentException('non-nullable archived_at cannot be null');
+        }
         $this->container['archived_at'] = $archived_at;
 
         return $this;
@@ -342,6 +443,9 @@ public function getPropertiesWithHistory()
      */
     public function setPropertiesWithHistory($properties_with_history)
     {
+        if (is_null($properties_with_history)) {
+            throw new \InvalidArgumentException('non-nullable properties_with_history cannot be null');
+        }
         $this->container['properties_with_history'] = $properties_with_history;
 
         return $this;
@@ -366,6 +470,9 @@ public function getId()
      */
     public function setId($id)
     {
+        if (is_null($id)) {
+            throw new \InvalidArgumentException('non-nullable id cannot be null');
+        }
         $this->container['id'] = $id;
 
         return $this;
@@ -390,6 +497,9 @@ public function getProperties()
      */
     public function setProperties($properties)
     {
+        if (is_null($properties)) {
+            throw new \InvalidArgumentException('non-nullable properties cannot be null');
+        }
         $this->container['properties'] = $properties;
 
         return $this;
@@ -414,6 +524,9 @@ public function getUpdatedAt()
      */
     public function setUpdatedAt($updated_at)
     {
+        if (is_null($updated_at)) {
+            throw new \InvalidArgumentException('non-nullable updated_at cannot be null');
+        }
         $this->container['updated_at'] = $updated_at;
 
         return $this;
diff --git a/codegen/Crm/Objects/Emails/Model/SimplePublicObjectBatchInput.php b/codegen/Crm/Objects/Emails/Model/SimplePublicObjectBatchInput.php
index 77293d84..4c92b547 100644
--- a/codegen/Crm/Objects/Emails/Model/SimplePublicObjectBatchInput.php
+++ b/codegen/Crm/Objects/Emails/Model/SimplePublicObjectBatchInput.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -75,6 +75,24 @@ class SimplePublicObjectBatchInput implements ModelInterface, ArrayAccess, \Json
         'properties' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'id_property' => false,
+        'id' => false,
+        'properties' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -95,6 +113,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -186,9 +256,27 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['id_property'] = $data['id_property'] ?? null;
-        $this->container['id'] = $data['id'] ?? null;
-        $this->container['properties'] = $data['properties'] ?? null;
+        $this->setIfExists('id_property', $data ?? [], null);
+        $this->setIfExists('id', $data ?? [], null);
+        $this->setIfExists('properties', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -240,6 +328,9 @@ public function getIdProperty()
      */
     public function setIdProperty($id_property)
     {
+        if (is_null($id_property)) {
+            throw new \InvalidArgumentException('non-nullable id_property cannot be null');
+        }
         $this->container['id_property'] = $id_property;
 
         return $this;
@@ -264,6 +355,9 @@ public function getId()
      */
     public function setId($id)
     {
+        if (is_null($id)) {
+            throw new \InvalidArgumentException('non-nullable id cannot be null');
+        }
         $this->container['id'] = $id;
 
         return $this;
@@ -288,6 +382,9 @@ public function getProperties()
      */
     public function setProperties($properties)
     {
+        if (is_null($properties)) {
+            throw new \InvalidArgumentException('non-nullable properties cannot be null');
+        }
         $this->container['properties'] = $properties;
 
         return $this;
diff --git a/codegen/Crm/Objects/Emails/Model/SimplePublicObjectId.php b/codegen/Crm/Objects/Emails/Model/SimplePublicObjectId.php
index afecf6a8..ac74659a 100644
--- a/codegen/Crm/Objects/Emails/Model/SimplePublicObjectId.php
+++ b/codegen/Crm/Objects/Emails/Model/SimplePublicObjectId.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -71,6 +71,22 @@ class SimplePublicObjectId implements ModelInterface, ArrayAccess, \JsonSerializ
         'id' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'id' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -91,6 +107,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -176,7 +244,25 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['id'] = $data['id'] ?? null;
+        $this->setIfExists('id', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -225,6 +311,9 @@ public function getId()
      */
     public function setId($id)
     {
+        if (is_null($id)) {
+            throw new \InvalidArgumentException('non-nullable id cannot be null');
+        }
         $this->container['id'] = $id;
 
         return $this;
diff --git a/codegen/Crm/Objects/Emails/Model/SimplePublicObjectInput.php b/codegen/Crm/Objects/Emails/Model/SimplePublicObjectInput.php
index ce074979..2f0b4020 100644
--- a/codegen/Crm/Objects/Emails/Model/SimplePublicObjectInput.php
+++ b/codegen/Crm/Objects/Emails/Model/SimplePublicObjectInput.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -71,6 +71,22 @@ class SimplePublicObjectInput implements ModelInterface, ArrayAccess, \JsonSeria
         'properties' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'properties' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -91,6 +107,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -176,7 +244,25 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['properties'] = $data['properties'] ?? null;
+        $this->setIfExists('properties', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -225,6 +311,9 @@ public function getProperties()
      */
     public function setProperties($properties)
     {
+        if (is_null($properties)) {
+            throw new \InvalidArgumentException('non-nullable properties cannot be null');
+        }
         $this->container['properties'] = $properties;
 
         return $this;
diff --git a/codegen/Crm/Objects/Emails/Model/SimplePublicObjectInputForCreate.php b/codegen/Crm/Objects/Emails/Model/SimplePublicObjectInputForCreate.php
index 77d4fc49..d1d55fec 100644
--- a/codegen/Crm/Objects/Emails/Model/SimplePublicObjectInputForCreate.php
+++ b/codegen/Crm/Objects/Emails/Model/SimplePublicObjectInputForCreate.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -73,6 +73,23 @@ class SimplePublicObjectInputForCreate implements ModelInterface, ArrayAccess, \
         'properties' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'associations' => false,
+        'properties' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -93,6 +110,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -181,8 +250,26 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['associations'] = $data['associations'] ?? null;
-        $this->container['properties'] = $data['properties'] ?? null;
+        $this->setIfExists('associations', $data ?? [], null);
+        $this->setIfExists('properties', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -234,6 +321,9 @@ public function getAssociations()
      */
     public function setAssociations($associations)
     {
+        if (is_null($associations)) {
+            throw new \InvalidArgumentException('non-nullable associations cannot be null');
+        }
         $this->container['associations'] = $associations;
 
         return $this;
@@ -258,6 +348,9 @@ public function getProperties()
      */
     public function setProperties($properties)
     {
+        if (is_null($properties)) {
+            throw new \InvalidArgumentException('non-nullable properties cannot be null');
+        }
         $this->container['properties'] = $properties;
 
         return $this;
diff --git a/codegen/Crm/Objects/Emails/Model/SimplePublicObjectWithAssociations.php b/codegen/Crm/Objects/Emails/Model/SimplePublicObjectWithAssociations.php
index 8cd317a4..22d7318e 100644
--- a/codegen/Crm/Objects/Emails/Model/SimplePublicObjectWithAssociations.php
+++ b/codegen/Crm/Objects/Emails/Model/SimplePublicObjectWithAssociations.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -85,6 +85,29 @@ class SimplePublicObjectWithAssociations implements ModelInterface, ArrayAccess,
         'updated_at' => 'date-time'
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'associations' => false,
+        'created_at' => false,
+        'archived' => false,
+        'archived_at' => false,
+        'properties_with_history' => false,
+        'id' => false,
+        'properties' => false,
+        'updated_at' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -105,6 +128,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -211,14 +286,32 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['associations'] = $data['associations'] ?? null;
-        $this->container['created_at'] = $data['created_at'] ?? null;
-        $this->container['archived'] = $data['archived'] ?? null;
-        $this->container['archived_at'] = $data['archived_at'] ?? null;
-        $this->container['properties_with_history'] = $data['properties_with_history'] ?? null;
-        $this->container['id'] = $data['id'] ?? null;
-        $this->container['properties'] = $data['properties'] ?? null;
-        $this->container['updated_at'] = $data['updated_at'] ?? null;
+        $this->setIfExists('associations', $data ?? [], null);
+        $this->setIfExists('created_at', $data ?? [], null);
+        $this->setIfExists('archived', $data ?? [], null);
+        $this->setIfExists('archived_at', $data ?? [], null);
+        $this->setIfExists('properties_with_history', $data ?? [], null);
+        $this->setIfExists('id', $data ?? [], null);
+        $this->setIfExists('properties', $data ?? [], null);
+        $this->setIfExists('updated_at', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -276,6 +369,9 @@ public function getAssociations()
      */
     public function setAssociations($associations)
     {
+        if (is_null($associations)) {
+            throw new \InvalidArgumentException('non-nullable associations cannot be null');
+        }
         $this->container['associations'] = $associations;
 
         return $this;
@@ -300,6 +396,9 @@ public function getCreatedAt()
      */
     public function setCreatedAt($created_at)
     {
+        if (is_null($created_at)) {
+            throw new \InvalidArgumentException('non-nullable created_at cannot be null');
+        }
         $this->container['created_at'] = $created_at;
 
         return $this;
@@ -324,6 +423,9 @@ public function getArchived()
      */
     public function setArchived($archived)
     {
+        if (is_null($archived)) {
+            throw new \InvalidArgumentException('non-nullable archived cannot be null');
+        }
         $this->container['archived'] = $archived;
 
         return $this;
@@ -348,6 +450,9 @@ public function getArchivedAt()
      */
     public function setArchivedAt($archived_at)
     {
+        if (is_null($archived_at)) {
+            throw new \InvalidArgumentException('non-nullable archived_at cannot be null');
+        }
         $this->container['archived_at'] = $archived_at;
 
         return $this;
@@ -372,6 +477,9 @@ public function getPropertiesWithHistory()
      */
     public function setPropertiesWithHistory($properties_with_history)
     {
+        if (is_null($properties_with_history)) {
+            throw new \InvalidArgumentException('non-nullable properties_with_history cannot be null');
+        }
         $this->container['properties_with_history'] = $properties_with_history;
 
         return $this;
@@ -396,6 +504,9 @@ public function getId()
      */
     public function setId($id)
     {
+        if (is_null($id)) {
+            throw new \InvalidArgumentException('non-nullable id cannot be null');
+        }
         $this->container['id'] = $id;
 
         return $this;
@@ -420,6 +531,9 @@ public function getProperties()
      */
     public function setProperties($properties)
     {
+        if (is_null($properties)) {
+            throw new \InvalidArgumentException('non-nullable properties cannot be null');
+        }
         $this->container['properties'] = $properties;
 
         return $this;
@@ -444,6 +558,9 @@ public function getUpdatedAt()
      */
     public function setUpdatedAt($updated_at)
     {
+        if (is_null($updated_at)) {
+            throw new \InvalidArgumentException('non-nullable updated_at cannot be null');
+        }
         $this->container['updated_at'] = $updated_at;
 
         return $this;
diff --git a/codegen/Crm/Objects/Emails/Model/StandardError.php b/codegen/Crm/Objects/Emails/Model/StandardError.php
index 97c61065..245c6d05 100644
--- a/codegen/Crm/Objects/Emails/Model/StandardError.php
+++ b/codegen/Crm/Objects/Emails/Model/StandardError.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -85,6 +85,29 @@ class StandardError implements ModelInterface, ArrayAccess, \JsonSerializable
         'status' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'sub_category' => false,
+        'context' => false,
+        'links' => false,
+        'id' => false,
+        'category' => false,
+        'message' => false,
+        'errors' => false,
+        'status' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -105,6 +128,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -211,14 +286,32 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['sub_category'] = $data['sub_category'] ?? null;
-        $this->container['context'] = $data['context'] ?? null;
-        $this->container['links'] = $data['links'] ?? null;
-        $this->container['id'] = $data['id'] ?? null;
-        $this->container['category'] = $data['category'] ?? null;
-        $this->container['message'] = $data['message'] ?? null;
-        $this->container['errors'] = $data['errors'] ?? null;
-        $this->container['status'] = $data['status'] ?? null;
+        $this->setIfExists('sub_category', $data ?? [], null);
+        $this->setIfExists('context', $data ?? [], null);
+        $this->setIfExists('links', $data ?? [], null);
+        $this->setIfExists('id', $data ?? [], null);
+        $this->setIfExists('category', $data ?? [], null);
+        $this->setIfExists('message', $data ?? [], null);
+        $this->setIfExists('errors', $data ?? [], null);
+        $this->setIfExists('status', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -282,6 +375,9 @@ public function getSubCategory()
      */
     public function setSubCategory($sub_category)
     {
+        if (is_null($sub_category)) {
+            throw new \InvalidArgumentException('non-nullable sub_category cannot be null');
+        }
         $this->container['sub_category'] = $sub_category;
 
         return $this;
@@ -306,6 +402,9 @@ public function getContext()
      */
     public function setContext($context)
     {
+        if (is_null($context)) {
+            throw new \InvalidArgumentException('non-nullable context cannot be null');
+        }
         $this->container['context'] = $context;
 
         return $this;
@@ -330,6 +429,9 @@ public function getLinks()
      */
     public function setLinks($links)
     {
+        if (is_null($links)) {
+            throw new \InvalidArgumentException('non-nullable links cannot be null');
+        }
         $this->container['links'] = $links;
 
         return $this;
@@ -354,6 +456,9 @@ public function getId()
      */
     public function setId($id)
     {
+        if (is_null($id)) {
+            throw new \InvalidArgumentException('non-nullable id cannot be null');
+        }
         $this->container['id'] = $id;
 
         return $this;
@@ -378,6 +483,9 @@ public function getCategory()
      */
     public function setCategory($category)
     {
+        if (is_null($category)) {
+            throw new \InvalidArgumentException('non-nullable category cannot be null');
+        }
         $this->container['category'] = $category;
 
         return $this;
@@ -402,6 +510,9 @@ public function getMessage()
      */
     public function setMessage($message)
     {
+        if (is_null($message)) {
+            throw new \InvalidArgumentException('non-nullable message cannot be null');
+        }
         $this->container['message'] = $message;
 
         return $this;
@@ -426,6 +537,9 @@ public function getErrors()
      */
     public function setErrors($errors)
     {
+        if (is_null($errors)) {
+            throw new \InvalidArgumentException('non-nullable errors cannot be null');
+        }
         $this->container['errors'] = $errors;
 
         return $this;
@@ -450,6 +564,9 @@ public function getStatus()
      */
     public function setStatus($status)
     {
+        if (is_null($status)) {
+            throw new \InvalidArgumentException('non-nullable status cannot be null');
+        }
         $this->container['status'] = $status;
 
         return $this;
diff --git a/codegen/Crm/Objects/Emails/Model/ValueWithTimestamp.php b/codegen/Crm/Objects/Emails/Model/ValueWithTimestamp.php
index cc751337..e5b6e6b3 100644
--- a/codegen/Crm/Objects/Emails/Model/ValueWithTimestamp.php
+++ b/codegen/Crm/Objects/Emails/Model/ValueWithTimestamp.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -81,6 +81,27 @@ class ValueWithTimestamp implements ModelInterface, ArrayAccess, \JsonSerializab
         'timestamp' => 'date-time'
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'source_id' => false,
+        'source_type' => false,
+        'source_label' => false,
+        'updated_by_user_id' => false,
+        'value' => false,
+        'timestamp' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -101,6 +122,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -201,12 +274,30 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['source_id'] = $data['source_id'] ?? null;
-        $this->container['source_type'] = $data['source_type'] ?? null;
-        $this->container['source_label'] = $data['source_label'] ?? null;
-        $this->container['updated_by_user_id'] = $data['updated_by_user_id'] ?? null;
-        $this->container['value'] = $data['value'] ?? null;
-        $this->container['timestamp'] = $data['timestamp'] ?? null;
+        $this->setIfExists('source_id', $data ?? [], null);
+        $this->setIfExists('source_type', $data ?? [], null);
+        $this->setIfExists('source_label', $data ?? [], null);
+        $this->setIfExists('updated_by_user_id', $data ?? [], null);
+        $this->setIfExists('value', $data ?? [], null);
+        $this->setIfExists('timestamp', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -261,6 +352,9 @@ public function getSourceId()
      */
     public function setSourceId($source_id)
     {
+        if (is_null($source_id)) {
+            throw new \InvalidArgumentException('non-nullable source_id cannot be null');
+        }
         $this->container['source_id'] = $source_id;
 
         return $this;
@@ -285,6 +379,9 @@ public function getSourceType()
      */
     public function setSourceType($source_type)
     {
+        if (is_null($source_type)) {
+            throw new \InvalidArgumentException('non-nullable source_type cannot be null');
+        }
         $this->container['source_type'] = $source_type;
 
         return $this;
@@ -309,6 +406,9 @@ public function getSourceLabel()
      */
     public function setSourceLabel($source_label)
     {
+        if (is_null($source_label)) {
+            throw new \InvalidArgumentException('non-nullable source_label cannot be null');
+        }
         $this->container['source_label'] = $source_label;
 
         return $this;
@@ -333,6 +433,9 @@ public function getUpdatedByUserId()
      */
     public function setUpdatedByUserId($updated_by_user_id)
     {
+        if (is_null($updated_by_user_id)) {
+            throw new \InvalidArgumentException('non-nullable updated_by_user_id cannot be null');
+        }
         $this->container['updated_by_user_id'] = $updated_by_user_id;
 
         return $this;
@@ -357,6 +460,9 @@ public function getValue()
      */
     public function setValue($value)
     {
+        if (is_null($value)) {
+            throw new \InvalidArgumentException('non-nullable value cannot be null');
+        }
         $this->container['value'] = $value;
 
         return $this;
@@ -381,6 +487,9 @@ public function getTimestamp()
      */
     public function setTimestamp($timestamp)
     {
+        if (is_null($timestamp)) {
+            throw new \InvalidArgumentException('non-nullable timestamp cannot be null');
+        }
         $this->container['timestamp'] = $timestamp;
 
         return $this;
diff --git a/codegen/Crm/Objects/Emails/ObjectSerializer.php b/codegen/Crm/Objects/Emails/ObjectSerializer.php
index c9b33427..8b8f0058 100644
--- a/codegen/Crm/Objects/Emails/ObjectSerializer.php
+++ b/codegen/Crm/Objects/Emails/ObjectSerializer.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -87,7 +87,7 @@ public static function sanitizeForSerialization($data, $type = null, $format = n
                 foreach ($data::openAPITypes() as $property => $openAPIType) {
                     $getter = $data::getters()[$property];
                     $value = $data->$getter();
-                    if ($value !== null && !in_array($openAPIType, ['\DateTime', '\SplFileObject', 'array', 'bool', 'boolean', 'byte', 'double', 'float', 'int', 'integer', 'mixed', 'number', 'object', 'string', 'void'], true)) {
+                    if ($value !== null && !in_array($openAPIType, ['\DateTime', '\SplFileObject', 'array', 'bool', 'boolean', 'byte', 'float', 'int', 'integer', 'mixed', 'number', 'object', 'string', 'void'], true)) {
                         $callable = [$openAPIType, 'getAllowableEnumValues'];
                         if (is_callable($callable)) {
                             /** array $callable */
@@ -98,7 +98,7 @@ public static function sanitizeForSerialization($data, $type = null, $format = n
                             }
                         }
                     }
-                    if ($value !== null) {
+                    if (($data::isNullable($property) && $data->isNullableSetToNull($property)) || $value !== null) {
                         $values[$data::attributeMap()[$property]] = self::sanitizeForSerialization($value, $openAPIType, $formats[$property]);
                     }
                 }
@@ -157,6 +157,49 @@ public static function toPathValue($value)
         return rawurlencode(self::toString($value));
     }
 
+    /**
+     * Checks if a value is empty, based on its OpenAPI type.
+     *
+     * @param mixed  $value
+     * @param string $openApiType
+     *
+     * @return bool true if $value is empty
+     */
+    private static function isEmptyValue($value, string $openApiType): bool
+    {
+        # If empty() returns false, it is not empty regardless of its type.
+        if (!empty($value)) {
+            return false;
+        }
+
+        # Null is always empty, as we cannot send a real "null" value in a query parameter.
+        if ($value === null) {
+            return true;
+        }
+
+        switch ($openApiType) {
+            # For numeric values, false and '' are considered empty.
+            # This comparison is safe for floating point values, since the previous call to empty() will
+            # filter out values that don't match 0.
+            case 'int':
+            case 'integer':
+                return $value !== 0;
+
+            case 'number':
+            case 'float':
+                return $value !== 0 && $value !== 0.0;
+
+            # For boolean values, '' is considered empty
+            case 'bool':
+            case 'boolean':
+                return !in_array($value, [false, 0], true);
+
+            # For all the other types, any value at this point can be considered empty.
+            default:
+                return true;
+        }
+    }
+
     /**
      * Take query parameter properties and turn it into an array suitable for
      * native http_build_query or GuzzleHttp\Psr7\Query::build.
@@ -178,10 +221,12 @@ public static function toQueryValue(
         bool $explode = true,
         bool $required = true
     ): array {
-        if (
-            empty($value)
-            && ($value !== false || $openApiType !== 'boolean') // if $value === false and $openApiType ==='boolean' it isn't empty
-        ) {
+
+        # Check if we should omit this parameter from the query. This should only happen when:
+        #  - Parameter is NOT required; AND
+        #  - its value is set to a value that is equivalent to "empty", depending on its OpenAPI type. For
+        #    example, 0 as "int" or "boolean" is NOT an empty value.
+        if (self::isEmptyValue($value, $openApiType)) {
             if ($required) {
                 return ["{$paramName}" => ''];
             } else {
@@ -189,6 +234,11 @@ public static function toQueryValue(
             }
         }
 
+        # Handle DateTime objects in query
+        if($openApiType === "\\DateTime" && $value instanceof \DateTime) {
+            return ["{$paramName}" => $value->format(self::$dateTimeFormat)];
+        }
+
         $query = [];
         $value = (in_array($openApiType, ['object', 'array'], true)) ? (array)$value : $value;
 
@@ -395,7 +445,7 @@ public static function deserialize($data, $class, $httpHeaders = null)
         }
 
         if ($class === '\DateTime') {
-            // Some API's return an invalid, empty string as a
+            // Some APIs return an invalid, empty string as a
             // date-time property. DateTime::__construct() will return
             // the current time for empty input which is probably not
             // what is meant. The invalid empty string is probably to
@@ -405,7 +455,7 @@ public static function deserialize($data, $class, $httpHeaders = null)
                 try {
                     return new \DateTime($data);
                 } catch (\Exception $exception) {
-                    // Some API's return a date-time with too high nanosecond
+                    // Some APIs return a date-time with too high nanosecond
                     // precision for php's DateTime to handle.
                     // With provided regexp 6 digits of microseconds saved
                     return new \DateTime(self::sanitizeTimestamp($data));
@@ -441,7 +491,7 @@ public static function deserialize($data, $class, $httpHeaders = null)
         }
 
         /** @psalm-suppress ParadoxicalCondition */
-        if (in_array($class, ['\DateTime', '\SplFileObject', 'array', 'bool', 'boolean', 'byte', 'double', 'float', 'int', 'integer', 'mixed', 'number', 'object', 'string', 'void'], true)) {
+        if (in_array($class, ['\DateTime', '\SplFileObject', 'array', 'bool', 'boolean', 'byte', 'float', 'int', 'integer', 'mixed', 'number', 'object', 'string', 'void'], true)) {
             settype($data, $class);
             return $data;
         }
@@ -455,6 +505,11 @@ public static function deserialize($data, $class, $httpHeaders = null)
             return $data;
         } else {
             $data = is_string($data) ? json_decode($data) : $data;
+
+            if (is_array($data)) {
+                $data = (object)$data;
+            }
+
             // If a discriminator is defined and points to a valid subclass, use it.
             $discriminator = $class::DISCRIMINATOR;
             if (!empty($discriminator) && isset($data->{$discriminator}) && is_string($data->{$discriminator})) {
@@ -469,7 +524,15 @@ public static function deserialize($data, $class, $httpHeaders = null)
             foreach ($instance::openAPITypes() as $property => $type) {
                 $propertySetter = $instance::setters()[$property];
 
-                if (!isset($propertySetter) || !isset($data->{$instance::attributeMap()[$property]})) {
+                if (!isset($propertySetter)) {
+                    continue;
+                }
+
+                if (!isset($data->{$instance::attributeMap()[$property]})) {
+                    if ($instance::isNullable($property)) {
+                        $instance->$propertySetter(null);
+                    }
+
                     continue;
                 }
 
diff --git a/codegen/Crm/Objects/Meetings/Api/BasicApi.php b/codegen/Crm/Objects/Meetings/Api/BasicApi.php
index 645027af..4a1d4a27 100644
--- a/codegen/Crm/Objects/Meetings/Api/BasicApi.php
+++ b/codegen/Crm/Objects/Meetings/Api/BasicApi.php
@@ -16,7 +16,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -69,6 +69,25 @@ class BasicApi
      */
     protected $hostIndex;
 
+    /** @var string[] $contentTypes **/
+    public const contentTypes = [
+        'archive' => [
+            'application/json',
+        ],
+        'create' => [
+            'application/json',
+        ],
+        'getById' => [
+            'application/json',
+        ],
+        'getPage' => [
+            'application/json',
+        ],
+        'update' => [
+            'application/json',
+        ],
+    ];
+
     /**
      * @param ClientInterface $client
      * @param Configuration   $config
@@ -121,14 +140,15 @@ public function getConfig()
      * Archive
      *
      * @param  string $meeting_id meeting_id (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['archive'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Meetings\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Meetings\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return void
      */
-    public function archive($meeting_id)
+    public function archive($meeting_id, string $contentType = self::contentTypes['archive'][0])
     {
-        $this->archiveWithHttpInfo($meeting_id);
+        $this->archiveWithHttpInfo($meeting_id, $contentType);
     }
 
     /**
@@ -137,14 +157,15 @@ public function archive($meeting_id)
      * Archive
      *
      * @param  string $meeting_id (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['archive'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Meetings\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Meetings\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return array of null, HTTP status code, HTTP response headers (array of strings)
      */
-    public function archiveWithHttpInfo($meeting_id)
+    public function archiveWithHttpInfo($meeting_id, string $contentType = self::contentTypes['archive'][0])
     {
-        $request = $this->archiveRequest($meeting_id);
+        $request = $this->archiveRequest($meeting_id, $contentType);
 
         try {
             $options = $this->createHttpClientOption();
@@ -204,13 +225,14 @@ public function archiveWithHttpInfo($meeting_id)
      * Archive
      *
      * @param  string $meeting_id (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['archive'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function archiveAsync($meeting_id)
+    public function archiveAsync($meeting_id, string $contentType = self::contentTypes['archive'][0])
     {
-        return $this->archiveAsyncWithHttpInfo($meeting_id)
+        return $this->archiveAsyncWithHttpInfo($meeting_id, $contentType)
             ->then(
                 function ($response) {
                     return $response[0];
@@ -224,14 +246,15 @@ function ($response) {
      * Archive
      *
      * @param  string $meeting_id (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['archive'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function archiveAsyncWithHttpInfo($meeting_id)
+    public function archiveAsyncWithHttpInfo($meeting_id, string $contentType = self::contentTypes['archive'][0])
     {
         $returnType = '';
-        $request = $this->archiveRequest($meeting_id);
+        $request = $this->archiveRequest($meeting_id, $contentType);
 
         return $this->client
             ->sendAsync($request, $this->createHttpClientOption())
@@ -260,12 +283,14 @@ function ($exception) {
      * Create request for operation 'archive'
      *
      * @param  string $meeting_id (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['archive'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Psr7\Request
      */
-    public function archiveRequest($meeting_id)
+    public function archiveRequest($meeting_id, string $contentType = self::contentTypes['archive'][0])
     {
+
         // verify the required parameter 'meeting_id' is set
         if ($meeting_id === null || (is_array($meeting_id) && count($meeting_id) === 0)) {
             throw new \InvalidArgumentException(
@@ -273,6 +298,7 @@ public function archiveRequest($meeting_id)
             );
         }
 
+
         $resourcePath = '/crm/v3/objects/meetings/{meetingId}';
         $formParams = [];
         $queryParams = [];
@@ -292,16 +318,11 @@ public function archiveRequest($meeting_id)
         }
 
 
-        if ($multipart) {
-            $headers = $this->headerSelector->selectHeadersForMultipart(
-                ['*/*']
-            );
-        } else {
-            $headers = $this->headerSelector->selectHeaders(
-                ['*/*'],
-                []
-            );
-        }
+        $headers = $this->headerSelector->selectHeaders(
+            ['*/*', ],
+            $contentType,
+            $multipart
+        );
 
         // for model (json/xml)
         if (count($formParams) > 0) {
@@ -319,9 +340,9 @@ public function archiveRequest($meeting_id)
                 // for HTTP post (form)
                 $httpBody = new MultipartStream($multipartContents);
 
-            } elseif ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode($formParams);
-
+            } elseif (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the form parameters
+                $httpBody = \GuzzleHttp\Utils::jsonEncode($formParams);
             } else {
                 // for HTTP post (form)
                 $httpBody = ObjectSerializer::buildQuery($formParams);
@@ -344,10 +365,11 @@ public function archiveRequest($meeting_id)
             $headers
         );
 
+        $operationHost = $this->config->getHost();
         $query = ObjectSerializer::buildQuery($queryParams);
         return new Request(
             'DELETE',
-            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
+            $operationHost . $resourcePath . ($query ? "?{$query}" : ''),
             $headers,
             $httpBody
         );
@@ -359,14 +381,15 @@ public function archiveRequest($meeting_id)
      * Create
      *
      * @param  \HubSpot\Client\Crm\Objects\Meetings\Model\SimplePublicObjectInputForCreate $simple_public_object_input_for_create simple_public_object_input_for_create (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['create'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Meetings\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Meetings\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return \HubSpot\Client\Crm\Objects\Meetings\Model\SimplePublicObject|\HubSpot\Client\Crm\Objects\Meetings\Model\Error
      */
-    public function create($simple_public_object_input_for_create)
+    public function create($simple_public_object_input_for_create, string $contentType = self::contentTypes['create'][0])
     {
-        list($response) = $this->createWithHttpInfo($simple_public_object_input_for_create);
+        list($response) = $this->createWithHttpInfo($simple_public_object_input_for_create, $contentType);
         return $response;
     }
 
@@ -376,14 +399,15 @@ public function create($simple_public_object_input_for_create)
      * Create
      *
      * @param  \HubSpot\Client\Crm\Objects\Meetings\Model\SimplePublicObjectInputForCreate $simple_public_object_input_for_create (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['create'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Meetings\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Meetings\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return array of \HubSpot\Client\Crm\Objects\Meetings\Model\SimplePublicObject|\HubSpot\Client\Crm\Objects\Meetings\Model\Error, HTTP status code, HTTP response headers (array of strings)
      */
-    public function createWithHttpInfo($simple_public_object_input_for_create)
+    public function createWithHttpInfo($simple_public_object_input_for_create, string $contentType = self::contentTypes['create'][0])
     {
-        $request = $this->createRequest($simple_public_object_input_for_create);
+        $request = $this->createRequest($simple_public_object_input_for_create, $contentType);
 
         try {
             $options = $this->createHttpClientOption();
@@ -427,7 +451,19 @@ public function createWithHttpInfo($simple_public_object_input_for_create)
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Meetings\Model\SimplePublicObject' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -442,7 +478,19 @@ public function createWithHttpInfo($simple_public_object_input_for_create)
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Meetings\Model\Error' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -459,7 +507,19 @@ public function createWithHttpInfo($simple_public_object_input_for_create)
             } else {
                 $content = (string) $response->getBody();
                 if ($returnType !== 'string') {
-                    $content = json_decode($content);
+                    try {
+                        $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                    } catch (\JsonException $exception) {
+                        throw new ApiException(
+                            sprintf(
+                                'Error JSON decoding server response (%s)',
+                                $request->getUri()
+                            ),
+                            $statusCode,
+                            $response->getHeaders(),
+                            $content
+                        );
+                    }
                 }
             }
 
@@ -498,13 +558,14 @@ public function createWithHttpInfo($simple_public_object_input_for_create)
      * Create
      *
      * @param  \HubSpot\Client\Crm\Objects\Meetings\Model\SimplePublicObjectInputForCreate $simple_public_object_input_for_create (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['create'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function createAsync($simple_public_object_input_for_create)
+    public function createAsync($simple_public_object_input_for_create, string $contentType = self::contentTypes['create'][0])
     {
-        return $this->createAsyncWithHttpInfo($simple_public_object_input_for_create)
+        return $this->createAsyncWithHttpInfo($simple_public_object_input_for_create, $contentType)
             ->then(
                 function ($response) {
                     return $response[0];
@@ -518,14 +579,15 @@ function ($response) {
      * Create
      *
      * @param  \HubSpot\Client\Crm\Objects\Meetings\Model\SimplePublicObjectInputForCreate $simple_public_object_input_for_create (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['create'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function createAsyncWithHttpInfo($simple_public_object_input_for_create)
+    public function createAsyncWithHttpInfo($simple_public_object_input_for_create, string $contentType = self::contentTypes['create'][0])
     {
         $returnType = '\HubSpot\Client\Crm\Objects\Meetings\Model\SimplePublicObject';
-        $request = $this->createRequest($simple_public_object_input_for_create);
+        $request = $this->createRequest($simple_public_object_input_for_create, $contentType);
 
         return $this->client
             ->sendAsync($request, $this->createHttpClientOption())
@@ -567,12 +629,14 @@ function ($exception) {
      * Create request for operation 'create'
      *
      * @param  \HubSpot\Client\Crm\Objects\Meetings\Model\SimplePublicObjectInputForCreate $simple_public_object_input_for_create (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['create'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Psr7\Request
      */
-    public function createRequest($simple_public_object_input_for_create)
+    public function createRequest($simple_public_object_input_for_create, string $contentType = self::contentTypes['create'][0])
     {
+
         // verify the required parameter 'simple_public_object_input_for_create' is set
         if ($simple_public_object_input_for_create === null || (is_array($simple_public_object_input_for_create) && count($simple_public_object_input_for_create) === 0)) {
             throw new \InvalidArgumentException(
@@ -580,6 +644,7 @@ public function createRequest($simple_public_object_input_for_create)
             );
         }
 
+
         $resourcePath = '/crm/v3/objects/meetings';
         $formParams = [];
         $queryParams = [];
@@ -591,21 +656,17 @@ public function createRequest($simple_public_object_input_for_create)
 
 
 
-        if ($multipart) {
-            $headers = $this->headerSelector->selectHeadersForMultipart(
-                ['application/json', '*/*']
-            );
-        } else {
-            $headers = $this->headerSelector->selectHeaders(
-                ['application/json', '*/*'],
-                ['application/json']
-            );
-        }
+        $headers = $this->headerSelector->selectHeaders(
+            ['application/json', '*/*', ],
+            $contentType,
+            $multipart
+        );
 
         // for model (json/xml)
         if (isset($simple_public_object_input_for_create)) {
-            if ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode(ObjectSerializer::sanitizeForSerialization($simple_public_object_input_for_create));
+            if (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the body
+                $httpBody = \GuzzleHttp\Utils::jsonEncode(ObjectSerializer::sanitizeForSerialization($simple_public_object_input_for_create));
             } else {
                 $httpBody = $simple_public_object_input_for_create;
             }
@@ -624,9 +685,9 @@ public function createRequest($simple_public_object_input_for_create)
                 // for HTTP post (form)
                 $httpBody = new MultipartStream($multipartContents);
 
-            } elseif ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode($formParams);
-
+            } elseif (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the form parameters
+                $httpBody = \GuzzleHttp\Utils::jsonEncode($formParams);
             } else {
                 // for HTTP post (form)
                 $httpBody = ObjectSerializer::buildQuery($formParams);
@@ -649,10 +710,11 @@ public function createRequest($simple_public_object_input_for_create)
             $headers
         );
 
+        $operationHost = $this->config->getHost();
         $query = ObjectSerializer::buildQuery($queryParams);
         return new Request(
             'POST',
-            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
+            $operationHost . $resourcePath . ($query ? "?{$query}" : ''),
             $headers,
             $httpBody
         );
@@ -669,14 +731,15 @@ public function createRequest($simple_public_object_input_for_create)
      * @param  string[] $associations A comma separated list of object types to retrieve associated IDs for. If any of the specified associations do not exist, they will be ignored. (optional)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
      * @param  string $id_property The name of a property whose values are unique for this object type (optional)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['getById'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Meetings\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Meetings\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return \HubSpot\Client\Crm\Objects\Meetings\Model\SimplePublicObjectWithAssociations|\HubSpot\Client\Crm\Objects\Meetings\Model\Error
      */
-    public function getById($meeting_id, $properties = null, $properties_with_history = null, $associations = null, $archived = false, $id_property = null)
+    public function getById($meeting_id, $properties = null, $properties_with_history = null, $associations = null, $archived = false, $id_property = null, string $contentType = self::contentTypes['getById'][0])
     {
-        list($response) = $this->getByIdWithHttpInfo($meeting_id, $properties, $properties_with_history, $associations, $archived, $id_property);
+        list($response) = $this->getByIdWithHttpInfo($meeting_id, $properties, $properties_with_history, $associations, $archived, $id_property, $contentType);
         return $response;
     }
 
@@ -691,14 +754,15 @@ public function getById($meeting_id, $properties = null, $properties_with_histor
      * @param  string[] $associations A comma separated list of object types to retrieve associated IDs for. If any of the specified associations do not exist, they will be ignored. (optional)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
      * @param  string $id_property The name of a property whose values are unique for this object type (optional)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['getById'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Meetings\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Meetings\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return array of \HubSpot\Client\Crm\Objects\Meetings\Model\SimplePublicObjectWithAssociations|\HubSpot\Client\Crm\Objects\Meetings\Model\Error, HTTP status code, HTTP response headers (array of strings)
      */
-    public function getByIdWithHttpInfo($meeting_id, $properties = null, $properties_with_history = null, $associations = null, $archived = false, $id_property = null)
+    public function getByIdWithHttpInfo($meeting_id, $properties = null, $properties_with_history = null, $associations = null, $archived = false, $id_property = null, string $contentType = self::contentTypes['getById'][0])
     {
-        $request = $this->getByIdRequest($meeting_id, $properties, $properties_with_history, $associations, $archived, $id_property);
+        $request = $this->getByIdRequest($meeting_id, $properties, $properties_with_history, $associations, $archived, $id_property, $contentType);
 
         try {
             $options = $this->createHttpClientOption();
@@ -742,7 +806,19 @@ public function getByIdWithHttpInfo($meeting_id, $properties = null, $properties
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Meetings\Model\SimplePublicObjectWithAssociations' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -757,7 +833,19 @@ public function getByIdWithHttpInfo($meeting_id, $properties = null, $properties
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Meetings\Model\Error' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -774,7 +862,19 @@ public function getByIdWithHttpInfo($meeting_id, $properties = null, $properties
             } else {
                 $content = (string) $response->getBody();
                 if ($returnType !== 'string') {
-                    $content = json_decode($content);
+                    try {
+                        $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                    } catch (\JsonException $exception) {
+                        throw new ApiException(
+                            sprintf(
+                                'Error JSON decoding server response (%s)',
+                                $request->getUri()
+                            ),
+                            $statusCode,
+                            $response->getHeaders(),
+                            $content
+                        );
+                    }
                 }
             }
 
@@ -818,13 +918,14 @@ public function getByIdWithHttpInfo($meeting_id, $properties = null, $properties
      * @param  string[] $associations A comma separated list of object types to retrieve associated IDs for. If any of the specified associations do not exist, they will be ignored. (optional)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
      * @param  string $id_property The name of a property whose values are unique for this object type (optional)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['getById'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function getByIdAsync($meeting_id, $properties = null, $properties_with_history = null, $associations = null, $archived = false, $id_property = null)
+    public function getByIdAsync($meeting_id, $properties = null, $properties_with_history = null, $associations = null, $archived = false, $id_property = null, string $contentType = self::contentTypes['getById'][0])
     {
-        return $this->getByIdAsyncWithHttpInfo($meeting_id, $properties, $properties_with_history, $associations, $archived, $id_property)
+        return $this->getByIdAsyncWithHttpInfo($meeting_id, $properties, $properties_with_history, $associations, $archived, $id_property, $contentType)
             ->then(
                 function ($response) {
                     return $response[0];
@@ -843,14 +944,15 @@ function ($response) {
      * @param  string[] $associations A comma separated list of object types to retrieve associated IDs for. If any of the specified associations do not exist, they will be ignored. (optional)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
      * @param  string $id_property The name of a property whose values are unique for this object type (optional)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['getById'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function getByIdAsyncWithHttpInfo($meeting_id, $properties = null, $properties_with_history = null, $associations = null, $archived = false, $id_property = null)
+    public function getByIdAsyncWithHttpInfo($meeting_id, $properties = null, $properties_with_history = null, $associations = null, $archived = false, $id_property = null, string $contentType = self::contentTypes['getById'][0])
     {
         $returnType = '\HubSpot\Client\Crm\Objects\Meetings\Model\SimplePublicObjectWithAssociations';
-        $request = $this->getByIdRequest($meeting_id, $properties, $properties_with_history, $associations, $archived, $id_property);
+        $request = $this->getByIdRequest($meeting_id, $properties, $properties_with_history, $associations, $archived, $id_property, $contentType);
 
         return $this->client
             ->sendAsync($request, $this->createHttpClientOption())
@@ -897,12 +999,14 @@ function ($exception) {
      * @param  string[] $associations A comma separated list of object types to retrieve associated IDs for. If any of the specified associations do not exist, they will be ignored. (optional)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
      * @param  string $id_property The name of a property whose values are unique for this object type (optional)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['getById'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Psr7\Request
      */
-    public function getByIdRequest($meeting_id, $properties = null, $properties_with_history = null, $associations = null, $archived = false, $id_property = null)
+    public function getByIdRequest($meeting_id, $properties = null, $properties_with_history = null, $associations = null, $archived = false, $id_property = null, string $contentType = self::contentTypes['getById'][0])
     {
+
         // verify the required parameter 'meeting_id' is set
         if ($meeting_id === null || (is_array($meeting_id) && count($meeting_id) === 0)) {
             throw new \InvalidArgumentException(
@@ -910,6 +1014,12 @@ public function getByIdRequest($meeting_id, $properties = null, $properties_with
             );
         }
 
+
+
+
+
+
+
         $resourcePath = '/crm/v3/objects/meetings/{meetingId}';
         $formParams = [];
         $queryParams = [];
@@ -974,16 +1084,11 @@ public function getByIdRequest($meeting_id, $properties = null, $properties_with
         }
 
 
-        if ($multipart) {
-            $headers = $this->headerSelector->selectHeadersForMultipart(
-                ['application/json', '*/*']
-            );
-        } else {
-            $headers = $this->headerSelector->selectHeaders(
-                ['application/json', '*/*'],
-                []
-            );
-        }
+        $headers = $this->headerSelector->selectHeaders(
+            ['application/json', '*/*', ],
+            $contentType,
+            $multipart
+        );
 
         // for model (json/xml)
         if (count($formParams) > 0) {
@@ -1001,9 +1106,9 @@ public function getByIdRequest($meeting_id, $properties = null, $properties_with
                 // for HTTP post (form)
                 $httpBody = new MultipartStream($multipartContents);
 
-            } elseif ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode($formParams);
-
+            } elseif (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the form parameters
+                $httpBody = \GuzzleHttp\Utils::jsonEncode($formParams);
             } else {
                 // for HTTP post (form)
                 $httpBody = ObjectSerializer::buildQuery($formParams);
@@ -1026,10 +1131,11 @@ public function getByIdRequest($meeting_id, $properties = null, $properties_with
             $headers
         );
 
+        $operationHost = $this->config->getHost();
         $query = ObjectSerializer::buildQuery($queryParams);
         return new Request(
             'GET',
-            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
+            $operationHost . $resourcePath . ($query ? "?{$query}" : ''),
             $headers,
             $httpBody
         );
@@ -1046,14 +1152,15 @@ public function getByIdRequest($meeting_id, $properties = null, $properties_with
      * @param  string[] $properties_with_history A comma separated list of the properties to be returned along with their history of previous values. If any of the specified properties are not present on the requested object(s), they will be ignored. Usage of this parameter will reduce the maximum number of objects that can be read by a single request. (optional)
      * @param  string[] $associations A comma separated list of object types to retrieve associated IDs for. If any of the specified associations do not exist, they will be ignored. (optional)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['getPage'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Meetings\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Meetings\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return \HubSpot\Client\Crm\Objects\Meetings\Model\CollectionResponseSimplePublicObjectWithAssociationsForwardPaging|\HubSpot\Client\Crm\Objects\Meetings\Model\Error
      */
-    public function getPage($limit = 10, $after = null, $properties = null, $properties_with_history = null, $associations = null, $archived = false)
+    public function getPage($limit = 10, $after = null, $properties = null, $properties_with_history = null, $associations = null, $archived = false, string $contentType = self::contentTypes['getPage'][0])
     {
-        list($response) = $this->getPageWithHttpInfo($limit, $after, $properties, $properties_with_history, $associations, $archived);
+        list($response) = $this->getPageWithHttpInfo($limit, $after, $properties, $properties_with_history, $associations, $archived, $contentType);
         return $response;
     }
 
@@ -1068,14 +1175,15 @@ public function getPage($limit = 10, $after = null, $properties = null, $propert
      * @param  string[] $properties_with_history A comma separated list of the properties to be returned along with their history of previous values. If any of the specified properties are not present on the requested object(s), they will be ignored. Usage of this parameter will reduce the maximum number of objects that can be read by a single request. (optional)
      * @param  string[] $associations A comma separated list of object types to retrieve associated IDs for. If any of the specified associations do not exist, they will be ignored. (optional)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['getPage'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Meetings\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Meetings\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return array of \HubSpot\Client\Crm\Objects\Meetings\Model\CollectionResponseSimplePublicObjectWithAssociationsForwardPaging|\HubSpot\Client\Crm\Objects\Meetings\Model\Error, HTTP status code, HTTP response headers (array of strings)
      */
-    public function getPageWithHttpInfo($limit = 10, $after = null, $properties = null, $properties_with_history = null, $associations = null, $archived = false)
+    public function getPageWithHttpInfo($limit = 10, $after = null, $properties = null, $properties_with_history = null, $associations = null, $archived = false, string $contentType = self::contentTypes['getPage'][0])
     {
-        $request = $this->getPageRequest($limit, $after, $properties, $properties_with_history, $associations, $archived);
+        $request = $this->getPageRequest($limit, $after, $properties, $properties_with_history, $associations, $archived, $contentType);
 
         try {
             $options = $this->createHttpClientOption();
@@ -1119,7 +1227,19 @@ public function getPageWithHttpInfo($limit = 10, $after = null, $properties = nu
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Meetings\Model\CollectionResponseSimplePublicObjectWithAssociationsForwardPaging' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -1134,7 +1254,19 @@ public function getPageWithHttpInfo($limit = 10, $after = null, $properties = nu
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Meetings\Model\Error' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -1151,7 +1283,19 @@ public function getPageWithHttpInfo($limit = 10, $after = null, $properties = nu
             } else {
                 $content = (string) $response->getBody();
                 if ($returnType !== 'string') {
-                    $content = json_decode($content);
+                    try {
+                        $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                    } catch (\JsonException $exception) {
+                        throw new ApiException(
+                            sprintf(
+                                'Error JSON decoding server response (%s)',
+                                $request->getUri()
+                            ),
+                            $statusCode,
+                            $response->getHeaders(),
+                            $content
+                        );
+                    }
                 }
             }
 
@@ -1195,13 +1339,14 @@ public function getPageWithHttpInfo($limit = 10, $after = null, $properties = nu
      * @param  string[] $properties_with_history A comma separated list of the properties to be returned along with their history of previous values. If any of the specified properties are not present on the requested object(s), they will be ignored. Usage of this parameter will reduce the maximum number of objects that can be read by a single request. (optional)
      * @param  string[] $associations A comma separated list of object types to retrieve associated IDs for. If any of the specified associations do not exist, they will be ignored. (optional)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['getPage'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function getPageAsync($limit = 10, $after = null, $properties = null, $properties_with_history = null, $associations = null, $archived = false)
+    public function getPageAsync($limit = 10, $after = null, $properties = null, $properties_with_history = null, $associations = null, $archived = false, string $contentType = self::contentTypes['getPage'][0])
     {
-        return $this->getPageAsyncWithHttpInfo($limit, $after, $properties, $properties_with_history, $associations, $archived)
+        return $this->getPageAsyncWithHttpInfo($limit, $after, $properties, $properties_with_history, $associations, $archived, $contentType)
             ->then(
                 function ($response) {
                     return $response[0];
@@ -1220,14 +1365,15 @@ function ($response) {
      * @param  string[] $properties_with_history A comma separated list of the properties to be returned along with their history of previous values. If any of the specified properties are not present on the requested object(s), they will be ignored. Usage of this parameter will reduce the maximum number of objects that can be read by a single request. (optional)
      * @param  string[] $associations A comma separated list of object types to retrieve associated IDs for. If any of the specified associations do not exist, they will be ignored. (optional)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['getPage'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function getPageAsyncWithHttpInfo($limit = 10, $after = null, $properties = null, $properties_with_history = null, $associations = null, $archived = false)
+    public function getPageAsyncWithHttpInfo($limit = 10, $after = null, $properties = null, $properties_with_history = null, $associations = null, $archived = false, string $contentType = self::contentTypes['getPage'][0])
     {
         $returnType = '\HubSpot\Client\Crm\Objects\Meetings\Model\CollectionResponseSimplePublicObjectWithAssociationsForwardPaging';
-        $request = $this->getPageRequest($limit, $after, $properties, $properties_with_history, $associations, $archived);
+        $request = $this->getPageRequest($limit, $after, $properties, $properties_with_history, $associations, $archived, $contentType);
 
         return $this->client
             ->sendAsync($request, $this->createHttpClientOption())
@@ -1274,13 +1420,21 @@ function ($exception) {
      * @param  string[] $properties_with_history A comma separated list of the properties to be returned along with their history of previous values. If any of the specified properties are not present on the requested object(s), they will be ignored. Usage of this parameter will reduce the maximum number of objects that can be read by a single request. (optional)
      * @param  string[] $associations A comma separated list of object types to retrieve associated IDs for. If any of the specified associations do not exist, they will be ignored. (optional)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['getPage'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Psr7\Request
      */
-    public function getPageRequest($limit = 10, $after = null, $properties = null, $properties_with_history = null, $associations = null, $archived = false)
+    public function getPageRequest($limit = 10, $after = null, $properties = null, $properties_with_history = null, $associations = null, $archived = false, string $contentType = self::contentTypes['getPage'][0])
     {
 
+
+
+
+
+
+
+
         $resourcePath = '/crm/v3/objects/meetings';
         $formParams = [];
         $queryParams = [];
@@ -1346,16 +1500,11 @@ public function getPageRequest($limit = 10, $after = null, $properties = null, $
 
 
 
-        if ($multipart) {
-            $headers = $this->headerSelector->selectHeadersForMultipart(
-                ['application/json', '*/*']
-            );
-        } else {
-            $headers = $this->headerSelector->selectHeaders(
-                ['application/json', '*/*'],
-                []
-            );
-        }
+        $headers = $this->headerSelector->selectHeaders(
+            ['application/json', '*/*', ],
+            $contentType,
+            $multipart
+        );
 
         // for model (json/xml)
         if (count($formParams) > 0) {
@@ -1373,9 +1522,9 @@ public function getPageRequest($limit = 10, $after = null, $properties = null, $
                 // for HTTP post (form)
                 $httpBody = new MultipartStream($multipartContents);
 
-            } elseif ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode($formParams);
-
+            } elseif (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the form parameters
+                $httpBody = \GuzzleHttp\Utils::jsonEncode($formParams);
             } else {
                 // for HTTP post (form)
                 $httpBody = ObjectSerializer::buildQuery($formParams);
@@ -1398,10 +1547,11 @@ public function getPageRequest($limit = 10, $after = null, $properties = null, $
             $headers
         );
 
+        $operationHost = $this->config->getHost();
         $query = ObjectSerializer::buildQuery($queryParams);
         return new Request(
             'GET',
-            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
+            $operationHost . $resourcePath . ($query ? "?{$query}" : ''),
             $headers,
             $httpBody
         );
@@ -1415,14 +1565,15 @@ public function getPageRequest($limit = 10, $after = null, $properties = null, $
      * @param  string $meeting_id meeting_id (required)
      * @param  \HubSpot\Client\Crm\Objects\Meetings\Model\SimplePublicObjectInput $simple_public_object_input simple_public_object_input (required)
      * @param  string $id_property The name of a property whose values are unique for this object type (optional)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['update'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Meetings\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Meetings\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return \HubSpot\Client\Crm\Objects\Meetings\Model\SimplePublicObject|\HubSpot\Client\Crm\Objects\Meetings\Model\Error
      */
-    public function update($meeting_id, $simple_public_object_input, $id_property = null)
+    public function update($meeting_id, $simple_public_object_input, $id_property = null, string $contentType = self::contentTypes['update'][0])
     {
-        list($response) = $this->updateWithHttpInfo($meeting_id, $simple_public_object_input, $id_property);
+        list($response) = $this->updateWithHttpInfo($meeting_id, $simple_public_object_input, $id_property, $contentType);
         return $response;
     }
 
@@ -1434,14 +1585,15 @@ public function update($meeting_id, $simple_public_object_input, $id_property =
      * @param  string $meeting_id (required)
      * @param  \HubSpot\Client\Crm\Objects\Meetings\Model\SimplePublicObjectInput $simple_public_object_input (required)
      * @param  string $id_property The name of a property whose values are unique for this object type (optional)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['update'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Meetings\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Meetings\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return array of \HubSpot\Client\Crm\Objects\Meetings\Model\SimplePublicObject|\HubSpot\Client\Crm\Objects\Meetings\Model\Error, HTTP status code, HTTP response headers (array of strings)
      */
-    public function updateWithHttpInfo($meeting_id, $simple_public_object_input, $id_property = null)
+    public function updateWithHttpInfo($meeting_id, $simple_public_object_input, $id_property = null, string $contentType = self::contentTypes['update'][0])
     {
-        $request = $this->updateRequest($meeting_id, $simple_public_object_input, $id_property);
+        $request = $this->updateRequest($meeting_id, $simple_public_object_input, $id_property, $contentType);
 
         try {
             $options = $this->createHttpClientOption();
@@ -1485,7 +1637,19 @@ public function updateWithHttpInfo($meeting_id, $simple_public_object_input, $id
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Meetings\Model\SimplePublicObject' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -1500,7 +1664,19 @@ public function updateWithHttpInfo($meeting_id, $simple_public_object_input, $id
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Meetings\Model\Error' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -1517,7 +1693,19 @@ public function updateWithHttpInfo($meeting_id, $simple_public_object_input, $id
             } else {
                 $content = (string) $response->getBody();
                 if ($returnType !== 'string') {
-                    $content = json_decode($content);
+                    try {
+                        $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                    } catch (\JsonException $exception) {
+                        throw new ApiException(
+                            sprintf(
+                                'Error JSON decoding server response (%s)',
+                                $request->getUri()
+                            ),
+                            $statusCode,
+                            $response->getHeaders(),
+                            $content
+                        );
+                    }
                 }
             }
 
@@ -1558,13 +1746,14 @@ public function updateWithHttpInfo($meeting_id, $simple_public_object_input, $id
      * @param  string $meeting_id (required)
      * @param  \HubSpot\Client\Crm\Objects\Meetings\Model\SimplePublicObjectInput $simple_public_object_input (required)
      * @param  string $id_property The name of a property whose values are unique for this object type (optional)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['update'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function updateAsync($meeting_id, $simple_public_object_input, $id_property = null)
+    public function updateAsync($meeting_id, $simple_public_object_input, $id_property = null, string $contentType = self::contentTypes['update'][0])
     {
-        return $this->updateAsyncWithHttpInfo($meeting_id, $simple_public_object_input, $id_property)
+        return $this->updateAsyncWithHttpInfo($meeting_id, $simple_public_object_input, $id_property, $contentType)
             ->then(
                 function ($response) {
                     return $response[0];
@@ -1580,14 +1769,15 @@ function ($response) {
      * @param  string $meeting_id (required)
      * @param  \HubSpot\Client\Crm\Objects\Meetings\Model\SimplePublicObjectInput $simple_public_object_input (required)
      * @param  string $id_property The name of a property whose values are unique for this object type (optional)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['update'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function updateAsyncWithHttpInfo($meeting_id, $simple_public_object_input, $id_property = null)
+    public function updateAsyncWithHttpInfo($meeting_id, $simple_public_object_input, $id_property = null, string $contentType = self::contentTypes['update'][0])
     {
         $returnType = '\HubSpot\Client\Crm\Objects\Meetings\Model\SimplePublicObject';
-        $request = $this->updateRequest($meeting_id, $simple_public_object_input, $id_property);
+        $request = $this->updateRequest($meeting_id, $simple_public_object_input, $id_property, $contentType);
 
         return $this->client
             ->sendAsync($request, $this->createHttpClientOption())
@@ -1631,18 +1821,21 @@ function ($exception) {
      * @param  string $meeting_id (required)
      * @param  \HubSpot\Client\Crm\Objects\Meetings\Model\SimplePublicObjectInput $simple_public_object_input (required)
      * @param  string $id_property The name of a property whose values are unique for this object type (optional)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['update'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Psr7\Request
      */
-    public function updateRequest($meeting_id, $simple_public_object_input, $id_property = null)
+    public function updateRequest($meeting_id, $simple_public_object_input, $id_property = null, string $contentType = self::contentTypes['update'][0])
     {
+
         // verify the required parameter 'meeting_id' is set
         if ($meeting_id === null || (is_array($meeting_id) && count($meeting_id) === 0)) {
             throw new \InvalidArgumentException(
                 'Missing the required parameter $meeting_id when calling update'
             );
         }
+
         // verify the required parameter 'simple_public_object_input' is set
         if ($simple_public_object_input === null || (is_array($simple_public_object_input) && count($simple_public_object_input) === 0)) {
             throw new \InvalidArgumentException(
@@ -1650,6 +1843,8 @@ public function updateRequest($meeting_id, $simple_public_object_input, $id_prop
             );
         }
 
+
+
         $resourcePath = '/crm/v3/objects/meetings/{meetingId}';
         $formParams = [];
         $queryParams = [];
@@ -1678,21 +1873,17 @@ public function updateRequest($meeting_id, $simple_public_object_input, $id_prop
         }
 
 
-        if ($multipart) {
-            $headers = $this->headerSelector->selectHeadersForMultipart(
-                ['application/json', '*/*']
-            );
-        } else {
-            $headers = $this->headerSelector->selectHeaders(
-                ['application/json', '*/*'],
-                ['application/json']
-            );
-        }
+        $headers = $this->headerSelector->selectHeaders(
+            ['application/json', '*/*', ],
+            $contentType,
+            $multipart
+        );
 
         // for model (json/xml)
         if (isset($simple_public_object_input)) {
-            if ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode(ObjectSerializer::sanitizeForSerialization($simple_public_object_input));
+            if (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the body
+                $httpBody = \GuzzleHttp\Utils::jsonEncode(ObjectSerializer::sanitizeForSerialization($simple_public_object_input));
             } else {
                 $httpBody = $simple_public_object_input;
             }
@@ -1711,9 +1902,9 @@ public function updateRequest($meeting_id, $simple_public_object_input, $id_prop
                 // for HTTP post (form)
                 $httpBody = new MultipartStream($multipartContents);
 
-            } elseif ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode($formParams);
-
+            } elseif (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the form parameters
+                $httpBody = \GuzzleHttp\Utils::jsonEncode($formParams);
             } else {
                 // for HTTP post (form)
                 $httpBody = ObjectSerializer::buildQuery($formParams);
@@ -1736,10 +1927,11 @@ public function updateRequest($meeting_id, $simple_public_object_input, $id_prop
             $headers
         );
 
+        $operationHost = $this->config->getHost();
         $query = ObjectSerializer::buildQuery($queryParams);
         return new Request(
             'PATCH',
-            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
+            $operationHost . $resourcePath . ($query ? "?{$query}" : ''),
             $headers,
             $httpBody
         );
diff --git a/codegen/Crm/Objects/Meetings/Api/BatchApi.php b/codegen/Crm/Objects/Meetings/Api/BatchApi.php
index 5e2c6366..bd5eb45b 100644
--- a/codegen/Crm/Objects/Meetings/Api/BatchApi.php
+++ b/codegen/Crm/Objects/Meetings/Api/BatchApi.php
@@ -16,7 +16,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -69,6 +69,22 @@ class BatchApi
      */
     protected $hostIndex;
 
+    /** @var string[] $contentTypes **/
+    public const contentTypes = [
+        'archive' => [
+            'application/json',
+        ],
+        'create' => [
+            'application/json',
+        ],
+        'read' => [
+            'application/json',
+        ],
+        'update' => [
+            'application/json',
+        ],
+    ];
+
     /**
      * @param ClientInterface $client
      * @param Configuration   $config
@@ -121,14 +137,15 @@ public function getConfig()
      * Archive a batch of meetings by ID
      *
      * @param  \HubSpot\Client\Crm\Objects\Meetings\Model\BatchInputSimplePublicObjectId $batch_input_simple_public_object_id batch_input_simple_public_object_id (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['archive'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Meetings\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Meetings\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return void
      */
-    public function archive($batch_input_simple_public_object_id)
+    public function archive($batch_input_simple_public_object_id, string $contentType = self::contentTypes['archive'][0])
     {
-        $this->archiveWithHttpInfo($batch_input_simple_public_object_id);
+        $this->archiveWithHttpInfo($batch_input_simple_public_object_id, $contentType);
     }
 
     /**
@@ -137,14 +154,15 @@ public function archive($batch_input_simple_public_object_id)
      * Archive a batch of meetings by ID
      *
      * @param  \HubSpot\Client\Crm\Objects\Meetings\Model\BatchInputSimplePublicObjectId $batch_input_simple_public_object_id (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['archive'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Meetings\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Meetings\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return array of null, HTTP status code, HTTP response headers (array of strings)
      */
-    public function archiveWithHttpInfo($batch_input_simple_public_object_id)
+    public function archiveWithHttpInfo($batch_input_simple_public_object_id, string $contentType = self::contentTypes['archive'][0])
     {
-        $request = $this->archiveRequest($batch_input_simple_public_object_id);
+        $request = $this->archiveRequest($batch_input_simple_public_object_id, $contentType);
 
         try {
             $options = $this->createHttpClientOption();
@@ -204,13 +222,14 @@ public function archiveWithHttpInfo($batch_input_simple_public_object_id)
      * Archive a batch of meetings by ID
      *
      * @param  \HubSpot\Client\Crm\Objects\Meetings\Model\BatchInputSimplePublicObjectId $batch_input_simple_public_object_id (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['archive'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function archiveAsync($batch_input_simple_public_object_id)
+    public function archiveAsync($batch_input_simple_public_object_id, string $contentType = self::contentTypes['archive'][0])
     {
-        return $this->archiveAsyncWithHttpInfo($batch_input_simple_public_object_id)
+        return $this->archiveAsyncWithHttpInfo($batch_input_simple_public_object_id, $contentType)
             ->then(
                 function ($response) {
                     return $response[0];
@@ -224,14 +243,15 @@ function ($response) {
      * Archive a batch of meetings by ID
      *
      * @param  \HubSpot\Client\Crm\Objects\Meetings\Model\BatchInputSimplePublicObjectId $batch_input_simple_public_object_id (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['archive'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function archiveAsyncWithHttpInfo($batch_input_simple_public_object_id)
+    public function archiveAsyncWithHttpInfo($batch_input_simple_public_object_id, string $contentType = self::contentTypes['archive'][0])
     {
         $returnType = '';
-        $request = $this->archiveRequest($batch_input_simple_public_object_id);
+        $request = $this->archiveRequest($batch_input_simple_public_object_id, $contentType);
 
         return $this->client
             ->sendAsync($request, $this->createHttpClientOption())
@@ -260,12 +280,14 @@ function ($exception) {
      * Create request for operation 'archive'
      *
      * @param  \HubSpot\Client\Crm\Objects\Meetings\Model\BatchInputSimplePublicObjectId $batch_input_simple_public_object_id (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['archive'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Psr7\Request
      */
-    public function archiveRequest($batch_input_simple_public_object_id)
+    public function archiveRequest($batch_input_simple_public_object_id, string $contentType = self::contentTypes['archive'][0])
     {
+
         // verify the required parameter 'batch_input_simple_public_object_id' is set
         if ($batch_input_simple_public_object_id === null || (is_array($batch_input_simple_public_object_id) && count($batch_input_simple_public_object_id) === 0)) {
             throw new \InvalidArgumentException(
@@ -273,6 +295,7 @@ public function archiveRequest($batch_input_simple_public_object_id)
             );
         }
 
+
         $resourcePath = '/crm/v3/objects/meetings/batch/archive';
         $formParams = [];
         $queryParams = [];
@@ -284,21 +307,17 @@ public function archiveRequest($batch_input_simple_public_object_id)
 
 
 
-        if ($multipart) {
-            $headers = $this->headerSelector->selectHeadersForMultipart(
-                ['*/*']
-            );
-        } else {
-            $headers = $this->headerSelector->selectHeaders(
-                ['*/*'],
-                ['application/json']
-            );
-        }
+        $headers = $this->headerSelector->selectHeaders(
+            ['*/*', ],
+            $contentType,
+            $multipart
+        );
 
         // for model (json/xml)
         if (isset($batch_input_simple_public_object_id)) {
-            if ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode(ObjectSerializer::sanitizeForSerialization($batch_input_simple_public_object_id));
+            if (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the body
+                $httpBody = \GuzzleHttp\Utils::jsonEncode(ObjectSerializer::sanitizeForSerialization($batch_input_simple_public_object_id));
             } else {
                 $httpBody = $batch_input_simple_public_object_id;
             }
@@ -317,9 +336,9 @@ public function archiveRequest($batch_input_simple_public_object_id)
                 // for HTTP post (form)
                 $httpBody = new MultipartStream($multipartContents);
 
-            } elseif ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode($formParams);
-
+            } elseif (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the form parameters
+                $httpBody = \GuzzleHttp\Utils::jsonEncode($formParams);
             } else {
                 // for HTTP post (form)
                 $httpBody = ObjectSerializer::buildQuery($formParams);
@@ -342,10 +361,11 @@ public function archiveRequest($batch_input_simple_public_object_id)
             $headers
         );
 
+        $operationHost = $this->config->getHost();
         $query = ObjectSerializer::buildQuery($queryParams);
         return new Request(
             'POST',
-            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
+            $operationHost . $resourcePath . ($query ? "?{$query}" : ''),
             $headers,
             $httpBody
         );
@@ -357,14 +377,15 @@ public function archiveRequest($batch_input_simple_public_object_id)
      * Create a batch of meetings
      *
      * @param  \HubSpot\Client\Crm\Objects\Meetings\Model\BatchInputSimplePublicObjectInputForCreate $batch_input_simple_public_object_input_for_create batch_input_simple_public_object_input_for_create (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['create'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Meetings\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Meetings\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return \HubSpot\Client\Crm\Objects\Meetings\Model\BatchResponseSimplePublicObject|\HubSpot\Client\Crm\Objects\Meetings\Model\BatchResponseSimplePublicObjectWithErrors|\HubSpot\Client\Crm\Objects\Meetings\Model\Error
      */
-    public function create($batch_input_simple_public_object_input_for_create)
+    public function create($batch_input_simple_public_object_input_for_create, string $contentType = self::contentTypes['create'][0])
     {
-        list($response) = $this->createWithHttpInfo($batch_input_simple_public_object_input_for_create);
+        list($response) = $this->createWithHttpInfo($batch_input_simple_public_object_input_for_create, $contentType);
         return $response;
     }
 
@@ -374,14 +395,15 @@ public function create($batch_input_simple_public_object_input_for_create)
      * Create a batch of meetings
      *
      * @param  \HubSpot\Client\Crm\Objects\Meetings\Model\BatchInputSimplePublicObjectInputForCreate $batch_input_simple_public_object_input_for_create (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['create'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Meetings\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Meetings\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return array of \HubSpot\Client\Crm\Objects\Meetings\Model\BatchResponseSimplePublicObject|\HubSpot\Client\Crm\Objects\Meetings\Model\BatchResponseSimplePublicObjectWithErrors|\HubSpot\Client\Crm\Objects\Meetings\Model\Error, HTTP status code, HTTP response headers (array of strings)
      */
-    public function createWithHttpInfo($batch_input_simple_public_object_input_for_create)
+    public function createWithHttpInfo($batch_input_simple_public_object_input_for_create, string $contentType = self::contentTypes['create'][0])
     {
-        $request = $this->createRequest($batch_input_simple_public_object_input_for_create);
+        $request = $this->createRequest($batch_input_simple_public_object_input_for_create, $contentType);
 
         try {
             $options = $this->createHttpClientOption();
@@ -425,7 +447,19 @@ public function createWithHttpInfo($batch_input_simple_public_object_input_for_c
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Meetings\Model\BatchResponseSimplePublicObject' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -440,7 +474,19 @@ public function createWithHttpInfo($batch_input_simple_public_object_input_for_c
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Meetings\Model\BatchResponseSimplePublicObjectWithErrors' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -455,7 +501,19 @@ public function createWithHttpInfo($batch_input_simple_public_object_input_for_c
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Meetings\Model\Error' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -472,7 +530,19 @@ public function createWithHttpInfo($batch_input_simple_public_object_input_for_c
             } else {
                 $content = (string) $response->getBody();
                 if ($returnType !== 'string') {
-                    $content = json_decode($content);
+                    try {
+                        $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                    } catch (\JsonException $exception) {
+                        throw new ApiException(
+                            sprintf(
+                                'Error JSON decoding server response (%s)',
+                                $request->getUri()
+                            ),
+                            $statusCode,
+                            $response->getHeaders(),
+                            $content
+                        );
+                    }
                 }
             }
 
@@ -519,13 +589,14 @@ public function createWithHttpInfo($batch_input_simple_public_object_input_for_c
      * Create a batch of meetings
      *
      * @param  \HubSpot\Client\Crm\Objects\Meetings\Model\BatchInputSimplePublicObjectInputForCreate $batch_input_simple_public_object_input_for_create (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['create'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function createAsync($batch_input_simple_public_object_input_for_create)
+    public function createAsync($batch_input_simple_public_object_input_for_create, string $contentType = self::contentTypes['create'][0])
     {
-        return $this->createAsyncWithHttpInfo($batch_input_simple_public_object_input_for_create)
+        return $this->createAsyncWithHttpInfo($batch_input_simple_public_object_input_for_create, $contentType)
             ->then(
                 function ($response) {
                     return $response[0];
@@ -539,14 +610,15 @@ function ($response) {
      * Create a batch of meetings
      *
      * @param  \HubSpot\Client\Crm\Objects\Meetings\Model\BatchInputSimplePublicObjectInputForCreate $batch_input_simple_public_object_input_for_create (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['create'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function createAsyncWithHttpInfo($batch_input_simple_public_object_input_for_create)
+    public function createAsyncWithHttpInfo($batch_input_simple_public_object_input_for_create, string $contentType = self::contentTypes['create'][0])
     {
         $returnType = '\HubSpot\Client\Crm\Objects\Meetings\Model\BatchResponseSimplePublicObject';
-        $request = $this->createRequest($batch_input_simple_public_object_input_for_create);
+        $request = $this->createRequest($batch_input_simple_public_object_input_for_create, $contentType);
 
         return $this->client
             ->sendAsync($request, $this->createHttpClientOption())
@@ -588,12 +660,14 @@ function ($exception) {
      * Create request for operation 'create'
      *
      * @param  \HubSpot\Client\Crm\Objects\Meetings\Model\BatchInputSimplePublicObjectInputForCreate $batch_input_simple_public_object_input_for_create (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['create'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Psr7\Request
      */
-    public function createRequest($batch_input_simple_public_object_input_for_create)
+    public function createRequest($batch_input_simple_public_object_input_for_create, string $contentType = self::contentTypes['create'][0])
     {
+
         // verify the required parameter 'batch_input_simple_public_object_input_for_create' is set
         if ($batch_input_simple_public_object_input_for_create === null || (is_array($batch_input_simple_public_object_input_for_create) && count($batch_input_simple_public_object_input_for_create) === 0)) {
             throw new \InvalidArgumentException(
@@ -601,6 +675,7 @@ public function createRequest($batch_input_simple_public_object_input_for_create
             );
         }
 
+
         $resourcePath = '/crm/v3/objects/meetings/batch/create';
         $formParams = [];
         $queryParams = [];
@@ -612,21 +687,17 @@ public function createRequest($batch_input_simple_public_object_input_for_create
 
 
 
-        if ($multipart) {
-            $headers = $this->headerSelector->selectHeadersForMultipart(
-                ['application/json', '*/*']
-            );
-        } else {
-            $headers = $this->headerSelector->selectHeaders(
-                ['application/json', '*/*'],
-                ['application/json']
-            );
-        }
+        $headers = $this->headerSelector->selectHeaders(
+            ['application/json', '*/*', ],
+            $contentType,
+            $multipart
+        );
 
         // for model (json/xml)
         if (isset($batch_input_simple_public_object_input_for_create)) {
-            if ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode(ObjectSerializer::sanitizeForSerialization($batch_input_simple_public_object_input_for_create));
+            if (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the body
+                $httpBody = \GuzzleHttp\Utils::jsonEncode(ObjectSerializer::sanitizeForSerialization($batch_input_simple_public_object_input_for_create));
             } else {
                 $httpBody = $batch_input_simple_public_object_input_for_create;
             }
@@ -645,9 +716,9 @@ public function createRequest($batch_input_simple_public_object_input_for_create
                 // for HTTP post (form)
                 $httpBody = new MultipartStream($multipartContents);
 
-            } elseif ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode($formParams);
-
+            } elseif (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the form parameters
+                $httpBody = \GuzzleHttp\Utils::jsonEncode($formParams);
             } else {
                 // for HTTP post (form)
                 $httpBody = ObjectSerializer::buildQuery($formParams);
@@ -670,10 +741,11 @@ public function createRequest($batch_input_simple_public_object_input_for_create
             $headers
         );
 
+        $operationHost = $this->config->getHost();
         $query = ObjectSerializer::buildQuery($queryParams);
         return new Request(
             'POST',
-            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
+            $operationHost . $resourcePath . ($query ? "?{$query}" : ''),
             $headers,
             $httpBody
         );
@@ -686,14 +758,15 @@ public function createRequest($batch_input_simple_public_object_input_for_create
      *
      * @param  \HubSpot\Client\Crm\Objects\Meetings\Model\BatchReadInputSimplePublicObjectId $batch_read_input_simple_public_object_id batch_read_input_simple_public_object_id (required)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['read'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Meetings\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Meetings\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return \HubSpot\Client\Crm\Objects\Meetings\Model\BatchResponseSimplePublicObject|\HubSpot\Client\Crm\Objects\Meetings\Model\BatchResponseSimplePublicObjectWithErrors|\HubSpot\Client\Crm\Objects\Meetings\Model\Error
      */
-    public function read($batch_read_input_simple_public_object_id, $archived = false)
+    public function read($batch_read_input_simple_public_object_id, $archived = false, string $contentType = self::contentTypes['read'][0])
     {
-        list($response) = $this->readWithHttpInfo($batch_read_input_simple_public_object_id, $archived);
+        list($response) = $this->readWithHttpInfo($batch_read_input_simple_public_object_id, $archived, $contentType);
         return $response;
     }
 
@@ -704,14 +777,15 @@ public function read($batch_read_input_simple_public_object_id, $archived = fals
      *
      * @param  \HubSpot\Client\Crm\Objects\Meetings\Model\BatchReadInputSimplePublicObjectId $batch_read_input_simple_public_object_id (required)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['read'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Meetings\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Meetings\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return array of \HubSpot\Client\Crm\Objects\Meetings\Model\BatchResponseSimplePublicObject|\HubSpot\Client\Crm\Objects\Meetings\Model\BatchResponseSimplePublicObjectWithErrors|\HubSpot\Client\Crm\Objects\Meetings\Model\Error, HTTP status code, HTTP response headers (array of strings)
      */
-    public function readWithHttpInfo($batch_read_input_simple_public_object_id, $archived = false)
+    public function readWithHttpInfo($batch_read_input_simple_public_object_id, $archived = false, string $contentType = self::contentTypes['read'][0])
     {
-        $request = $this->readRequest($batch_read_input_simple_public_object_id, $archived);
+        $request = $this->readRequest($batch_read_input_simple_public_object_id, $archived, $contentType);
 
         try {
             $options = $this->createHttpClientOption();
@@ -755,7 +829,19 @@ public function readWithHttpInfo($batch_read_input_simple_public_object_id, $arc
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Meetings\Model\BatchResponseSimplePublicObject' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -770,7 +856,19 @@ public function readWithHttpInfo($batch_read_input_simple_public_object_id, $arc
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Meetings\Model\BatchResponseSimplePublicObjectWithErrors' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -785,7 +883,19 @@ public function readWithHttpInfo($batch_read_input_simple_public_object_id, $arc
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Meetings\Model\Error' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -802,7 +912,19 @@ public function readWithHttpInfo($batch_read_input_simple_public_object_id, $arc
             } else {
                 $content = (string) $response->getBody();
                 if ($returnType !== 'string') {
-                    $content = json_decode($content);
+                    try {
+                        $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                    } catch (\JsonException $exception) {
+                        throw new ApiException(
+                            sprintf(
+                                'Error JSON decoding server response (%s)',
+                                $request->getUri()
+                            ),
+                            $statusCode,
+                            $response->getHeaders(),
+                            $content
+                        );
+                    }
                 }
             }
 
@@ -850,13 +972,14 @@ public function readWithHttpInfo($batch_read_input_simple_public_object_id, $arc
      *
      * @param  \HubSpot\Client\Crm\Objects\Meetings\Model\BatchReadInputSimplePublicObjectId $batch_read_input_simple_public_object_id (required)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['read'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function readAsync($batch_read_input_simple_public_object_id, $archived = false)
+    public function readAsync($batch_read_input_simple_public_object_id, $archived = false, string $contentType = self::contentTypes['read'][0])
     {
-        return $this->readAsyncWithHttpInfo($batch_read_input_simple_public_object_id, $archived)
+        return $this->readAsyncWithHttpInfo($batch_read_input_simple_public_object_id, $archived, $contentType)
             ->then(
                 function ($response) {
                     return $response[0];
@@ -871,14 +994,15 @@ function ($response) {
      *
      * @param  \HubSpot\Client\Crm\Objects\Meetings\Model\BatchReadInputSimplePublicObjectId $batch_read_input_simple_public_object_id (required)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['read'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function readAsyncWithHttpInfo($batch_read_input_simple_public_object_id, $archived = false)
+    public function readAsyncWithHttpInfo($batch_read_input_simple_public_object_id, $archived = false, string $contentType = self::contentTypes['read'][0])
     {
         $returnType = '\HubSpot\Client\Crm\Objects\Meetings\Model\BatchResponseSimplePublicObject';
-        $request = $this->readRequest($batch_read_input_simple_public_object_id, $archived);
+        $request = $this->readRequest($batch_read_input_simple_public_object_id, $archived, $contentType);
 
         return $this->client
             ->sendAsync($request, $this->createHttpClientOption())
@@ -921,12 +1045,14 @@ function ($exception) {
      *
      * @param  \HubSpot\Client\Crm\Objects\Meetings\Model\BatchReadInputSimplePublicObjectId $batch_read_input_simple_public_object_id (required)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['read'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Psr7\Request
      */
-    public function readRequest($batch_read_input_simple_public_object_id, $archived = false)
+    public function readRequest($batch_read_input_simple_public_object_id, $archived = false, string $contentType = self::contentTypes['read'][0])
     {
+
         // verify the required parameter 'batch_read_input_simple_public_object_id' is set
         if ($batch_read_input_simple_public_object_id === null || (is_array($batch_read_input_simple_public_object_id) && count($batch_read_input_simple_public_object_id) === 0)) {
             throw new \InvalidArgumentException(
@@ -934,6 +1060,8 @@ public function readRequest($batch_read_input_simple_public_object_id, $archived
             );
         }
 
+
+
         $resourcePath = '/crm/v3/objects/meetings/batch/read';
         $formParams = [];
         $queryParams = [];
@@ -954,21 +1082,17 @@ public function readRequest($batch_read_input_simple_public_object_id, $archived
 
 
 
-        if ($multipart) {
-            $headers = $this->headerSelector->selectHeadersForMultipart(
-                ['application/json', '*/*']
-            );
-        } else {
-            $headers = $this->headerSelector->selectHeaders(
-                ['application/json', '*/*'],
-                ['application/json']
-            );
-        }
+        $headers = $this->headerSelector->selectHeaders(
+            ['application/json', '*/*', ],
+            $contentType,
+            $multipart
+        );
 
         // for model (json/xml)
         if (isset($batch_read_input_simple_public_object_id)) {
-            if ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode(ObjectSerializer::sanitizeForSerialization($batch_read_input_simple_public_object_id));
+            if (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the body
+                $httpBody = \GuzzleHttp\Utils::jsonEncode(ObjectSerializer::sanitizeForSerialization($batch_read_input_simple_public_object_id));
             } else {
                 $httpBody = $batch_read_input_simple_public_object_id;
             }
@@ -987,9 +1111,9 @@ public function readRequest($batch_read_input_simple_public_object_id, $archived
                 // for HTTP post (form)
                 $httpBody = new MultipartStream($multipartContents);
 
-            } elseif ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode($formParams);
-
+            } elseif (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the form parameters
+                $httpBody = \GuzzleHttp\Utils::jsonEncode($formParams);
             } else {
                 // for HTTP post (form)
                 $httpBody = ObjectSerializer::buildQuery($formParams);
@@ -1012,10 +1136,11 @@ public function readRequest($batch_read_input_simple_public_object_id, $archived
             $headers
         );
 
+        $operationHost = $this->config->getHost();
         $query = ObjectSerializer::buildQuery($queryParams);
         return new Request(
             'POST',
-            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
+            $operationHost . $resourcePath . ($query ? "?{$query}" : ''),
             $headers,
             $httpBody
         );
@@ -1027,14 +1152,15 @@ public function readRequest($batch_read_input_simple_public_object_id, $archived
      * Update a batch of meetings
      *
      * @param  \HubSpot\Client\Crm\Objects\Meetings\Model\BatchInputSimplePublicObjectBatchInput $batch_input_simple_public_object_batch_input batch_input_simple_public_object_batch_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['update'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Meetings\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Meetings\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return \HubSpot\Client\Crm\Objects\Meetings\Model\BatchResponseSimplePublicObject|\HubSpot\Client\Crm\Objects\Meetings\Model\BatchResponseSimplePublicObjectWithErrors|\HubSpot\Client\Crm\Objects\Meetings\Model\Error
      */
-    public function update($batch_input_simple_public_object_batch_input)
+    public function update($batch_input_simple_public_object_batch_input, string $contentType = self::contentTypes['update'][0])
     {
-        list($response) = $this->updateWithHttpInfo($batch_input_simple_public_object_batch_input);
+        list($response) = $this->updateWithHttpInfo($batch_input_simple_public_object_batch_input, $contentType);
         return $response;
     }
 
@@ -1044,14 +1170,15 @@ public function update($batch_input_simple_public_object_batch_input)
      * Update a batch of meetings
      *
      * @param  \HubSpot\Client\Crm\Objects\Meetings\Model\BatchInputSimplePublicObjectBatchInput $batch_input_simple_public_object_batch_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['update'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Meetings\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Meetings\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return array of \HubSpot\Client\Crm\Objects\Meetings\Model\BatchResponseSimplePublicObject|\HubSpot\Client\Crm\Objects\Meetings\Model\BatchResponseSimplePublicObjectWithErrors|\HubSpot\Client\Crm\Objects\Meetings\Model\Error, HTTP status code, HTTP response headers (array of strings)
      */
-    public function updateWithHttpInfo($batch_input_simple_public_object_batch_input)
+    public function updateWithHttpInfo($batch_input_simple_public_object_batch_input, string $contentType = self::contentTypes['update'][0])
     {
-        $request = $this->updateRequest($batch_input_simple_public_object_batch_input);
+        $request = $this->updateRequest($batch_input_simple_public_object_batch_input, $contentType);
 
         try {
             $options = $this->createHttpClientOption();
@@ -1095,7 +1222,19 @@ public function updateWithHttpInfo($batch_input_simple_public_object_batch_input
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Meetings\Model\BatchResponseSimplePublicObject' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -1110,7 +1249,19 @@ public function updateWithHttpInfo($batch_input_simple_public_object_batch_input
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Meetings\Model\BatchResponseSimplePublicObjectWithErrors' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -1125,7 +1276,19 @@ public function updateWithHttpInfo($batch_input_simple_public_object_batch_input
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Meetings\Model\Error' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -1142,7 +1305,19 @@ public function updateWithHttpInfo($batch_input_simple_public_object_batch_input
             } else {
                 $content = (string) $response->getBody();
                 if ($returnType !== 'string') {
-                    $content = json_decode($content);
+                    try {
+                        $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                    } catch (\JsonException $exception) {
+                        throw new ApiException(
+                            sprintf(
+                                'Error JSON decoding server response (%s)',
+                                $request->getUri()
+                            ),
+                            $statusCode,
+                            $response->getHeaders(),
+                            $content
+                        );
+                    }
                 }
             }
 
@@ -1189,13 +1364,14 @@ public function updateWithHttpInfo($batch_input_simple_public_object_batch_input
      * Update a batch of meetings
      *
      * @param  \HubSpot\Client\Crm\Objects\Meetings\Model\BatchInputSimplePublicObjectBatchInput $batch_input_simple_public_object_batch_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['update'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function updateAsync($batch_input_simple_public_object_batch_input)
+    public function updateAsync($batch_input_simple_public_object_batch_input, string $contentType = self::contentTypes['update'][0])
     {
-        return $this->updateAsyncWithHttpInfo($batch_input_simple_public_object_batch_input)
+        return $this->updateAsyncWithHttpInfo($batch_input_simple_public_object_batch_input, $contentType)
             ->then(
                 function ($response) {
                     return $response[0];
@@ -1209,14 +1385,15 @@ function ($response) {
      * Update a batch of meetings
      *
      * @param  \HubSpot\Client\Crm\Objects\Meetings\Model\BatchInputSimplePublicObjectBatchInput $batch_input_simple_public_object_batch_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['update'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function updateAsyncWithHttpInfo($batch_input_simple_public_object_batch_input)
+    public function updateAsyncWithHttpInfo($batch_input_simple_public_object_batch_input, string $contentType = self::contentTypes['update'][0])
     {
         $returnType = '\HubSpot\Client\Crm\Objects\Meetings\Model\BatchResponseSimplePublicObject';
-        $request = $this->updateRequest($batch_input_simple_public_object_batch_input);
+        $request = $this->updateRequest($batch_input_simple_public_object_batch_input, $contentType);
 
         return $this->client
             ->sendAsync($request, $this->createHttpClientOption())
@@ -1258,12 +1435,14 @@ function ($exception) {
      * Create request for operation 'update'
      *
      * @param  \HubSpot\Client\Crm\Objects\Meetings\Model\BatchInputSimplePublicObjectBatchInput $batch_input_simple_public_object_batch_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['update'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Psr7\Request
      */
-    public function updateRequest($batch_input_simple_public_object_batch_input)
+    public function updateRequest($batch_input_simple_public_object_batch_input, string $contentType = self::contentTypes['update'][0])
     {
+
         // verify the required parameter 'batch_input_simple_public_object_batch_input' is set
         if ($batch_input_simple_public_object_batch_input === null || (is_array($batch_input_simple_public_object_batch_input) && count($batch_input_simple_public_object_batch_input) === 0)) {
             throw new \InvalidArgumentException(
@@ -1271,6 +1450,7 @@ public function updateRequest($batch_input_simple_public_object_batch_input)
             );
         }
 
+
         $resourcePath = '/crm/v3/objects/meetings/batch/update';
         $formParams = [];
         $queryParams = [];
@@ -1282,21 +1462,17 @@ public function updateRequest($batch_input_simple_public_object_batch_input)
 
 
 
-        if ($multipart) {
-            $headers = $this->headerSelector->selectHeadersForMultipart(
-                ['application/json', '*/*']
-            );
-        } else {
-            $headers = $this->headerSelector->selectHeaders(
-                ['application/json', '*/*'],
-                ['application/json']
-            );
-        }
+        $headers = $this->headerSelector->selectHeaders(
+            ['application/json', '*/*', ],
+            $contentType,
+            $multipart
+        );
 
         // for model (json/xml)
         if (isset($batch_input_simple_public_object_batch_input)) {
-            if ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode(ObjectSerializer::sanitizeForSerialization($batch_input_simple_public_object_batch_input));
+            if (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the body
+                $httpBody = \GuzzleHttp\Utils::jsonEncode(ObjectSerializer::sanitizeForSerialization($batch_input_simple_public_object_batch_input));
             } else {
                 $httpBody = $batch_input_simple_public_object_batch_input;
             }
@@ -1315,9 +1491,9 @@ public function updateRequest($batch_input_simple_public_object_batch_input)
                 // for HTTP post (form)
                 $httpBody = new MultipartStream($multipartContents);
 
-            } elseif ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode($formParams);
-
+            } elseif (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the form parameters
+                $httpBody = \GuzzleHttp\Utils::jsonEncode($formParams);
             } else {
                 // for HTTP post (form)
                 $httpBody = ObjectSerializer::buildQuery($formParams);
@@ -1340,10 +1516,11 @@ public function updateRequest($batch_input_simple_public_object_batch_input)
             $headers
         );
 
+        $operationHost = $this->config->getHost();
         $query = ObjectSerializer::buildQuery($queryParams);
         return new Request(
             'POST',
-            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
+            $operationHost . $resourcePath . ($query ? "?{$query}" : ''),
             $headers,
             $httpBody
         );
diff --git a/codegen/Crm/Objects/Meetings/Api/GDPRApi.php b/codegen/Crm/Objects/Meetings/Api/GDPRApi.php
index 053bc2d9..3f2be3e9 100644
--- a/codegen/Crm/Objects/Meetings/Api/GDPRApi.php
+++ b/codegen/Crm/Objects/Meetings/Api/GDPRApi.php
@@ -16,7 +16,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -69,6 +69,13 @@ class GDPRApi
      */
     protected $hostIndex;
 
+    /** @var string[] $contentTypes **/
+    public const contentTypes = [
+        'purge' => [
+            'application/json',
+        ],
+    ];
+
     /**
      * @param ClientInterface $client
      * @param Configuration   $config
@@ -121,14 +128,15 @@ public function getConfig()
      * GDPR DELETE
      *
      * @param  \HubSpot\Client\Crm\Objects\Meetings\Model\PublicGdprDeleteInput $public_gdpr_delete_input public_gdpr_delete_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['purge'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Meetings\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Meetings\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return void
      */
-    public function purge($public_gdpr_delete_input)
+    public function purge($public_gdpr_delete_input, string $contentType = self::contentTypes['purge'][0])
     {
-        $this->purgeWithHttpInfo($public_gdpr_delete_input);
+        $this->purgeWithHttpInfo($public_gdpr_delete_input, $contentType);
     }
 
     /**
@@ -137,14 +145,15 @@ public function purge($public_gdpr_delete_input)
      * GDPR DELETE
      *
      * @param  \HubSpot\Client\Crm\Objects\Meetings\Model\PublicGdprDeleteInput $public_gdpr_delete_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['purge'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Meetings\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Meetings\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return array of null, HTTP status code, HTTP response headers (array of strings)
      */
-    public function purgeWithHttpInfo($public_gdpr_delete_input)
+    public function purgeWithHttpInfo($public_gdpr_delete_input, string $contentType = self::contentTypes['purge'][0])
     {
-        $request = $this->purgeRequest($public_gdpr_delete_input);
+        $request = $this->purgeRequest($public_gdpr_delete_input, $contentType);
 
         try {
             $options = $this->createHttpClientOption();
@@ -204,13 +213,14 @@ public function purgeWithHttpInfo($public_gdpr_delete_input)
      * GDPR DELETE
      *
      * @param  \HubSpot\Client\Crm\Objects\Meetings\Model\PublicGdprDeleteInput $public_gdpr_delete_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['purge'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function purgeAsync($public_gdpr_delete_input)
+    public function purgeAsync($public_gdpr_delete_input, string $contentType = self::contentTypes['purge'][0])
     {
-        return $this->purgeAsyncWithHttpInfo($public_gdpr_delete_input)
+        return $this->purgeAsyncWithHttpInfo($public_gdpr_delete_input, $contentType)
             ->then(
                 function ($response) {
                     return $response[0];
@@ -224,14 +234,15 @@ function ($response) {
      * GDPR DELETE
      *
      * @param  \HubSpot\Client\Crm\Objects\Meetings\Model\PublicGdprDeleteInput $public_gdpr_delete_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['purge'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function purgeAsyncWithHttpInfo($public_gdpr_delete_input)
+    public function purgeAsyncWithHttpInfo($public_gdpr_delete_input, string $contentType = self::contentTypes['purge'][0])
     {
         $returnType = '';
-        $request = $this->purgeRequest($public_gdpr_delete_input);
+        $request = $this->purgeRequest($public_gdpr_delete_input, $contentType);
 
         return $this->client
             ->sendAsync($request, $this->createHttpClientOption())
@@ -260,12 +271,14 @@ function ($exception) {
      * Create request for operation 'purge'
      *
      * @param  \HubSpot\Client\Crm\Objects\Meetings\Model\PublicGdprDeleteInput $public_gdpr_delete_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['purge'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Psr7\Request
      */
-    public function purgeRequest($public_gdpr_delete_input)
+    public function purgeRequest($public_gdpr_delete_input, string $contentType = self::contentTypes['purge'][0])
     {
+
         // verify the required parameter 'public_gdpr_delete_input' is set
         if ($public_gdpr_delete_input === null || (is_array($public_gdpr_delete_input) && count($public_gdpr_delete_input) === 0)) {
             throw new \InvalidArgumentException(
@@ -273,6 +286,7 @@ public function purgeRequest($public_gdpr_delete_input)
             );
         }
 
+
         $resourcePath = '/crm/v3/objects/meetings/gdpr-delete';
         $formParams = [];
         $queryParams = [];
@@ -284,21 +298,17 @@ public function purgeRequest($public_gdpr_delete_input)
 
 
 
-        if ($multipart) {
-            $headers = $this->headerSelector->selectHeadersForMultipart(
-                ['*/*']
-            );
-        } else {
-            $headers = $this->headerSelector->selectHeaders(
-                ['*/*'],
-                ['application/json']
-            );
-        }
+        $headers = $this->headerSelector->selectHeaders(
+            ['*/*', ],
+            $contentType,
+            $multipart
+        );
 
         // for model (json/xml)
         if (isset($public_gdpr_delete_input)) {
-            if ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode(ObjectSerializer::sanitizeForSerialization($public_gdpr_delete_input));
+            if (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the body
+                $httpBody = \GuzzleHttp\Utils::jsonEncode(ObjectSerializer::sanitizeForSerialization($public_gdpr_delete_input));
             } else {
                 $httpBody = $public_gdpr_delete_input;
             }
@@ -317,9 +327,9 @@ public function purgeRequest($public_gdpr_delete_input)
                 // for HTTP post (form)
                 $httpBody = new MultipartStream($multipartContents);
 
-            } elseif ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode($formParams);
-
+            } elseif (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the form parameters
+                $httpBody = \GuzzleHttp\Utils::jsonEncode($formParams);
             } else {
                 // for HTTP post (form)
                 $httpBody = ObjectSerializer::buildQuery($formParams);
@@ -342,10 +352,11 @@ public function purgeRequest($public_gdpr_delete_input)
             $headers
         );
 
+        $operationHost = $this->config->getHost();
         $query = ObjectSerializer::buildQuery($queryParams);
         return new Request(
             'POST',
-            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
+            $operationHost . $resourcePath . ($query ? "?{$query}" : ''),
             $headers,
             $httpBody
         );
diff --git a/codegen/Crm/Objects/Meetings/Api/PublicObjectApi.php b/codegen/Crm/Objects/Meetings/Api/PublicObjectApi.php
index 914c94ae..516439c4 100644
--- a/codegen/Crm/Objects/Meetings/Api/PublicObjectApi.php
+++ b/codegen/Crm/Objects/Meetings/Api/PublicObjectApi.php
@@ -16,7 +16,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -69,6 +69,13 @@ class PublicObjectApi
      */
     protected $hostIndex;
 
+    /** @var string[] $contentTypes **/
+    public const contentTypes = [
+        'merge' => [
+            'application/json',
+        ],
+    ];
+
     /**
      * @param ClientInterface $client
      * @param Configuration   $config
@@ -121,14 +128,15 @@ public function getConfig()
      * Merge two meetings with same type
      *
      * @param  \HubSpot\Client\Crm\Objects\Meetings\Model\PublicMergeInput $public_merge_input public_merge_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['merge'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Meetings\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Meetings\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return \HubSpot\Client\Crm\Objects\Meetings\Model\SimplePublicObject|\HubSpot\Client\Crm\Objects\Meetings\Model\Error
      */
-    public function merge($public_merge_input)
+    public function merge($public_merge_input, string $contentType = self::contentTypes['merge'][0])
     {
-        list($response) = $this->mergeWithHttpInfo($public_merge_input);
+        list($response) = $this->mergeWithHttpInfo($public_merge_input, $contentType);
         return $response;
     }
 
@@ -138,14 +146,15 @@ public function merge($public_merge_input)
      * Merge two meetings with same type
      *
      * @param  \HubSpot\Client\Crm\Objects\Meetings\Model\PublicMergeInput $public_merge_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['merge'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Meetings\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Meetings\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return array of \HubSpot\Client\Crm\Objects\Meetings\Model\SimplePublicObject|\HubSpot\Client\Crm\Objects\Meetings\Model\Error, HTTP status code, HTTP response headers (array of strings)
      */
-    public function mergeWithHttpInfo($public_merge_input)
+    public function mergeWithHttpInfo($public_merge_input, string $contentType = self::contentTypes['merge'][0])
     {
-        $request = $this->mergeRequest($public_merge_input);
+        $request = $this->mergeRequest($public_merge_input, $contentType);
 
         try {
             $options = $this->createHttpClientOption();
@@ -189,7 +198,19 @@ public function mergeWithHttpInfo($public_merge_input)
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Meetings\Model\SimplePublicObject' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -204,7 +225,19 @@ public function mergeWithHttpInfo($public_merge_input)
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Meetings\Model\Error' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -221,7 +254,19 @@ public function mergeWithHttpInfo($public_merge_input)
             } else {
                 $content = (string) $response->getBody();
                 if ($returnType !== 'string') {
-                    $content = json_decode($content);
+                    try {
+                        $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                    } catch (\JsonException $exception) {
+                        throw new ApiException(
+                            sprintf(
+                                'Error JSON decoding server response (%s)',
+                                $request->getUri()
+                            ),
+                            $statusCode,
+                            $response->getHeaders(),
+                            $content
+                        );
+                    }
                 }
             }
 
@@ -260,13 +305,14 @@ public function mergeWithHttpInfo($public_merge_input)
      * Merge two meetings with same type
      *
      * @param  \HubSpot\Client\Crm\Objects\Meetings\Model\PublicMergeInput $public_merge_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['merge'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function mergeAsync($public_merge_input)
+    public function mergeAsync($public_merge_input, string $contentType = self::contentTypes['merge'][0])
     {
-        return $this->mergeAsyncWithHttpInfo($public_merge_input)
+        return $this->mergeAsyncWithHttpInfo($public_merge_input, $contentType)
             ->then(
                 function ($response) {
                     return $response[0];
@@ -280,14 +326,15 @@ function ($response) {
      * Merge two meetings with same type
      *
      * @param  \HubSpot\Client\Crm\Objects\Meetings\Model\PublicMergeInput $public_merge_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['merge'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function mergeAsyncWithHttpInfo($public_merge_input)
+    public function mergeAsyncWithHttpInfo($public_merge_input, string $contentType = self::contentTypes['merge'][0])
     {
         $returnType = '\HubSpot\Client\Crm\Objects\Meetings\Model\SimplePublicObject';
-        $request = $this->mergeRequest($public_merge_input);
+        $request = $this->mergeRequest($public_merge_input, $contentType);
 
         return $this->client
             ->sendAsync($request, $this->createHttpClientOption())
@@ -329,12 +376,14 @@ function ($exception) {
      * Create request for operation 'merge'
      *
      * @param  \HubSpot\Client\Crm\Objects\Meetings\Model\PublicMergeInput $public_merge_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['merge'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Psr7\Request
      */
-    public function mergeRequest($public_merge_input)
+    public function mergeRequest($public_merge_input, string $contentType = self::contentTypes['merge'][0])
     {
+
         // verify the required parameter 'public_merge_input' is set
         if ($public_merge_input === null || (is_array($public_merge_input) && count($public_merge_input) === 0)) {
             throw new \InvalidArgumentException(
@@ -342,6 +391,7 @@ public function mergeRequest($public_merge_input)
             );
         }
 
+
         $resourcePath = '/crm/v3/objects/meetings/merge';
         $formParams = [];
         $queryParams = [];
@@ -353,21 +403,17 @@ public function mergeRequest($public_merge_input)
 
 
 
-        if ($multipart) {
-            $headers = $this->headerSelector->selectHeadersForMultipart(
-                ['application/json', '*/*']
-            );
-        } else {
-            $headers = $this->headerSelector->selectHeaders(
-                ['application/json', '*/*'],
-                ['application/json']
-            );
-        }
+        $headers = $this->headerSelector->selectHeaders(
+            ['application/json', '*/*', ],
+            $contentType,
+            $multipart
+        );
 
         // for model (json/xml)
         if (isset($public_merge_input)) {
-            if ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode(ObjectSerializer::sanitizeForSerialization($public_merge_input));
+            if (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the body
+                $httpBody = \GuzzleHttp\Utils::jsonEncode(ObjectSerializer::sanitizeForSerialization($public_merge_input));
             } else {
                 $httpBody = $public_merge_input;
             }
@@ -386,9 +432,9 @@ public function mergeRequest($public_merge_input)
                 // for HTTP post (form)
                 $httpBody = new MultipartStream($multipartContents);
 
-            } elseif ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode($formParams);
-
+            } elseif (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the form parameters
+                $httpBody = \GuzzleHttp\Utils::jsonEncode($formParams);
             } else {
                 // for HTTP post (form)
                 $httpBody = ObjectSerializer::buildQuery($formParams);
@@ -411,10 +457,11 @@ public function mergeRequest($public_merge_input)
             $headers
         );
 
+        $operationHost = $this->config->getHost();
         $query = ObjectSerializer::buildQuery($queryParams);
         return new Request(
             'POST',
-            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
+            $operationHost . $resourcePath . ($query ? "?{$query}" : ''),
             $headers,
             $httpBody
         );
diff --git a/codegen/Crm/Objects/Meetings/Api/SearchApi.php b/codegen/Crm/Objects/Meetings/Api/SearchApi.php
index a24174b3..c4517455 100644
--- a/codegen/Crm/Objects/Meetings/Api/SearchApi.php
+++ b/codegen/Crm/Objects/Meetings/Api/SearchApi.php
@@ -16,7 +16,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -69,6 +69,13 @@ class SearchApi
      */
     protected $hostIndex;
 
+    /** @var string[] $contentTypes **/
+    public const contentTypes = [
+        'doSearch' => [
+            'application/json',
+        ],
+    ];
+
     /**
      * @param ClientInterface $client
      * @param Configuration   $config
@@ -119,14 +126,15 @@ public function getConfig()
      * Operation doSearch
      *
      * @param  \HubSpot\Client\Crm\Objects\Meetings\Model\PublicObjectSearchRequest $public_object_search_request public_object_search_request (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['doSearch'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Meetings\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Meetings\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return \HubSpot\Client\Crm\Objects\Meetings\Model\CollectionResponseWithTotalSimplePublicObjectForwardPaging|\HubSpot\Client\Crm\Objects\Meetings\Model\Error
      */
-    public function doSearch($public_object_search_request)
+    public function doSearch($public_object_search_request, string $contentType = self::contentTypes['doSearch'][0])
     {
-        list($response) = $this->doSearchWithHttpInfo($public_object_search_request);
+        list($response) = $this->doSearchWithHttpInfo($public_object_search_request, $contentType);
         return $response;
     }
 
@@ -134,14 +142,15 @@ public function doSearch($public_object_search_request)
      * Operation doSearchWithHttpInfo
      *
      * @param  \HubSpot\Client\Crm\Objects\Meetings\Model\PublicObjectSearchRequest $public_object_search_request (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['doSearch'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Meetings\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Meetings\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return array of \HubSpot\Client\Crm\Objects\Meetings\Model\CollectionResponseWithTotalSimplePublicObjectForwardPaging|\HubSpot\Client\Crm\Objects\Meetings\Model\Error, HTTP status code, HTTP response headers (array of strings)
      */
-    public function doSearchWithHttpInfo($public_object_search_request)
+    public function doSearchWithHttpInfo($public_object_search_request, string $contentType = self::contentTypes['doSearch'][0])
     {
-        $request = $this->doSearchRequest($public_object_search_request);
+        $request = $this->doSearchRequest($public_object_search_request, $contentType);
 
         try {
             $options = $this->createHttpClientOption();
@@ -185,7 +194,19 @@ public function doSearchWithHttpInfo($public_object_search_request)
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Meetings\Model\CollectionResponseWithTotalSimplePublicObjectForwardPaging' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -200,7 +221,19 @@ public function doSearchWithHttpInfo($public_object_search_request)
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Meetings\Model\Error' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -217,7 +250,19 @@ public function doSearchWithHttpInfo($public_object_search_request)
             } else {
                 $content = (string) $response->getBody();
                 if ($returnType !== 'string') {
-                    $content = json_decode($content);
+                    try {
+                        $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                    } catch (\JsonException $exception) {
+                        throw new ApiException(
+                            sprintf(
+                                'Error JSON decoding server response (%s)',
+                                $request->getUri()
+                            ),
+                            $statusCode,
+                            $response->getHeaders(),
+                            $content
+                        );
+                    }
                 }
             }
 
@@ -254,13 +299,14 @@ public function doSearchWithHttpInfo($public_object_search_request)
      * Operation doSearchAsync
      *
      * @param  \HubSpot\Client\Crm\Objects\Meetings\Model\PublicObjectSearchRequest $public_object_search_request (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['doSearch'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function doSearchAsync($public_object_search_request)
+    public function doSearchAsync($public_object_search_request, string $contentType = self::contentTypes['doSearch'][0])
     {
-        return $this->doSearchAsyncWithHttpInfo($public_object_search_request)
+        return $this->doSearchAsyncWithHttpInfo($public_object_search_request, $contentType)
             ->then(
                 function ($response) {
                     return $response[0];
@@ -272,14 +318,15 @@ function ($response) {
      * Operation doSearchAsyncWithHttpInfo
      *
      * @param  \HubSpot\Client\Crm\Objects\Meetings\Model\PublicObjectSearchRequest $public_object_search_request (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['doSearch'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function doSearchAsyncWithHttpInfo($public_object_search_request)
+    public function doSearchAsyncWithHttpInfo($public_object_search_request, string $contentType = self::contentTypes['doSearch'][0])
     {
         $returnType = '\HubSpot\Client\Crm\Objects\Meetings\Model\CollectionResponseWithTotalSimplePublicObjectForwardPaging';
-        $request = $this->doSearchRequest($public_object_search_request);
+        $request = $this->doSearchRequest($public_object_search_request, $contentType);
 
         return $this->client
             ->sendAsync($request, $this->createHttpClientOption())
@@ -321,12 +368,14 @@ function ($exception) {
      * Create request for operation 'doSearch'
      *
      * @param  \HubSpot\Client\Crm\Objects\Meetings\Model\PublicObjectSearchRequest $public_object_search_request (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['doSearch'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Psr7\Request
      */
-    public function doSearchRequest($public_object_search_request)
+    public function doSearchRequest($public_object_search_request, string $contentType = self::contentTypes['doSearch'][0])
     {
+
         // verify the required parameter 'public_object_search_request' is set
         if ($public_object_search_request === null || (is_array($public_object_search_request) && count($public_object_search_request) === 0)) {
             throw new \InvalidArgumentException(
@@ -334,6 +383,7 @@ public function doSearchRequest($public_object_search_request)
             );
         }
 
+
         $resourcePath = '/crm/v3/objects/meetings/search';
         $formParams = [];
         $queryParams = [];
@@ -345,21 +395,17 @@ public function doSearchRequest($public_object_search_request)
 
 
 
-        if ($multipart) {
-            $headers = $this->headerSelector->selectHeadersForMultipart(
-                ['application/json', '*/*']
-            );
-        } else {
-            $headers = $this->headerSelector->selectHeaders(
-                ['application/json', '*/*'],
-                ['application/json']
-            );
-        }
+        $headers = $this->headerSelector->selectHeaders(
+            ['application/json', '*/*', ],
+            $contentType,
+            $multipart
+        );
 
         // for model (json/xml)
         if (isset($public_object_search_request)) {
-            if ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode(ObjectSerializer::sanitizeForSerialization($public_object_search_request));
+            if (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the body
+                $httpBody = \GuzzleHttp\Utils::jsonEncode(ObjectSerializer::sanitizeForSerialization($public_object_search_request));
             } else {
                 $httpBody = $public_object_search_request;
             }
@@ -378,9 +424,9 @@ public function doSearchRequest($public_object_search_request)
                 // for HTTP post (form)
                 $httpBody = new MultipartStream($multipartContents);
 
-            } elseif ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode($formParams);
-
+            } elseif (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the form parameters
+                $httpBody = \GuzzleHttp\Utils::jsonEncode($formParams);
             } else {
                 // for HTTP post (form)
                 $httpBody = ObjectSerializer::buildQuery($formParams);
@@ -403,10 +449,11 @@ public function doSearchRequest($public_object_search_request)
             $headers
         );
 
+        $operationHost = $this->config->getHost();
         $query = ObjectSerializer::buildQuery($queryParams);
         return new Request(
             'POST',
-            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
+            $operationHost . $resourcePath . ($query ? "?{$query}" : ''),
             $headers,
             $httpBody
         );
diff --git a/codegen/Crm/Objects/Meetings/ApiException.php b/codegen/Crm/Objects/Meetings/ApiException.php
index c780bd4a..9302b4e1 100644
--- a/codegen/Crm/Objects/Meetings/ApiException.php
+++ b/codegen/Crm/Objects/Meetings/ApiException.php
@@ -16,7 +16,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
diff --git a/codegen/Crm/Objects/Meetings/Configuration.php b/codegen/Crm/Objects/Meetings/Configuration.php
index eeaa06ec..296b091f 100644
--- a/codegen/Crm/Objects/Meetings/Configuration.php
+++ b/codegen/Crm/Objects/Meetings/Configuration.php
@@ -16,7 +16,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -209,7 +209,7 @@ public function getAccessToken()
     /**
      * Sets boolean format for query string.
      *
-     * @param string $booleanFormatForQueryString Boolean format for query string
+     * @param string $booleanFormat Boolean format for query string
      *
      * @return $this
      */
@@ -479,32 +479,31 @@ public function getHostSettings()
     }
 
     /**
-     * Returns URL based on the index and variables
-     *
-     * @param int        $index     index of the host settings
-     * @param array|null $variables hash of variable and the corresponding value (optional)
-     * @return string URL based on host settings
-     */
-    public function getHostFromSettings($index, $variables = null)
+    * Returns URL based on host settings, index and variables
+    *
+    * @param array      $hostSettings array of host settings, generated from getHostSettings() or equivalent from the API clients
+    * @param int        $hostIndex    index of the host settings
+    * @param array|null $variables    hash of variable and the corresponding value (optional)
+    * @return string URL based on host settings
+    */
+    public static function getHostString(array $hostSettings, $hostIndex, array $variables = null)
     {
         if (null === $variables) {
             $variables = [];
         }
 
-        $hosts = $this->getHostSettings();
-
         // check array index out of bound
-        if ($index < 0 || $index >= sizeof($hosts)) {
-            throw new \InvalidArgumentException("Invalid index $index when selecting the host. Must be less than ".sizeof($hosts));
+        if ($hostIndex < 0 || $hostIndex >= count($hostSettings)) {
+            throw new \InvalidArgumentException("Invalid index $hostIndex when selecting the host. Must be less than ".count($hostSettings));
         }
 
-        $host = $hosts[$index];
+        $host = $hostSettings[$hostIndex];
         $url = $host["url"];
 
         // go through variable and assign a value
         foreach ($host["variables"] ?? [] as $name => $variable) {
             if (array_key_exists($name, $variables)) { // check to see if it's in the variables provided by the user
-                if (in_array($variables[$name], $variable["enum_values"], true)) { // check to see if the value is in the enum
+                if (!isset($variable['enum_values']) || in_array($variables[$name], $variable["enum_values"], true)) { // check to see if the value is in the enum
                     $url = str_replace("{".$name."}", $variables[$name], $url);
                 } else {
                     throw new \InvalidArgumentException("The variable `$name` in the host URL has invalid value ".$variables[$name].". Must be ".join(',', $variable["enum_values"]).".");
@@ -517,4 +516,16 @@ public function getHostFromSettings($index, $variables = null)
 
         return $url;
     }
+
+    /**
+     * Returns URL based on the index and variables
+     *
+     * @param int        $index     index of the host settings
+     * @param array|null $variables hash of variable and the corresponding value (optional)
+     * @return string URL based on host settings
+     */
+    public function getHostFromSettings($index, $variables = null)
+    {
+        return self::getHostString($this->getHostSettings(), $index, $variables);
+    }
 }
diff --git a/codegen/Crm/Objects/Meetings/HeaderSelector.php b/codegen/Crm/Objects/Meetings/HeaderSelector.php
index 76c7a0ce..066c235a 100644
--- a/codegen/Crm/Objects/Meetings/HeaderSelector.php
+++ b/codegen/Crm/Objects/Meetings/HeaderSelector.php
@@ -1,6 +1,6 @@
 <?php
 /**
- * ApiException
+ * HeaderSelector
  * PHP version 7.4
  *
  * @category Class
@@ -16,7 +16,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -27,10 +27,8 @@
 
 namespace HubSpot\Client\Crm\Objects\Meetings;
 
-use \Exception;
-
 /**
- * ApiException Class Doc Comment
+ * HeaderSelector Class Doc Comment
  *
  * @category Class
  * @package  HubSpot\Client\Crm\Objects\Meetings
@@ -41,10 +39,11 @@ class HeaderSelector
 {
     /**
      * @param string[] $accept
-     * @param string[] $contentTypes
-     * @return array
+     * @param string   $contentType
+     * @param bool     $isMultipart
+     * @return string[]
      */
-    public function selectHeaders($accept, $contentTypes)
+    public function selectHeaders(array $accept, string $contentType, bool $isMultipart): array
     {
         $headers = [];
 
@@ -53,55 +52,194 @@ public function selectHeaders($accept, $contentTypes)
             $headers['Accept'] = $accept;
         }
 
-        $headers['Content-Type'] = $this->selectContentTypeHeader($contentTypes);
-        return $headers;
-    }
+        if (!$isMultipart) {
+            if($contentType === '') {
+                $contentType = 'application/json';
+            }
 
-    /**
-     * @param string[] $accept
-     * @return array
-     */
-    public function selectHeadersForMultipart($accept)
-    {
-        $headers = $this->selectHeaders($accept, []);
+            $headers['Content-Type'] = $contentType;
+        }
 
-        unset($headers['Content-Type']);
         return $headers;
     }
 
     /**
-     * Return the header 'Accept' based on an array of Accept provided
+     * Return the header 'Accept' based on an array of Accept provided.
      *
      * @param string[] $accept Array of header
      *
      * @return null|string Accept (e.g. application/json)
      */
-    private function selectAcceptHeader($accept)
+    private function selectAcceptHeader(array $accept): ?string
     {
-        if (count($accept) === 0 || (count($accept) === 1 && $accept[0] === '')) {
+        # filter out empty entries
+        $accept = array_filter($accept);
+
+        if (count($accept) === 0) {
             return null;
-        } elseif ($jsonAccept = preg_grep('~(?i)^(application/json|[^;/ \t]+/[^;/ \t]+[+]json)[ \t]*(;.*)?$~', $accept)) {
-            return implode(',', $jsonAccept);
-        } else {
+        }
+
+        # If there's only one Accept header, just use it
+        if (count($accept) === 1) {
+            return reset($accept);
+        }
+
+        # If none of the available Accept headers is of type "json", then just use all them
+        $headersWithJson = preg_grep('~(?i)^(application/json|[^;/ \t]+/[^;/ \t]+[+]json)[ \t]*(;.*)?$~', $accept);
+        if (count($headersWithJson) === 0) {
             return implode(',', $accept);
         }
+
+        # If we got here, then we need add quality values (weight), as described in IETF RFC 9110, Items 12.4.2/12.5.1,
+        # to give the highest priority to json-like headers - recalculating the existing ones, if needed
+        return $this->getAcceptHeaderWithAdjustedWeight($accept, $headersWithJson);
+    }
+
+    /**
+    * Create an Accept header string from the given "Accept" headers array, recalculating all weights
+    *
+    * @param string[] $accept            Array of Accept Headers
+    * @param string[] $headersWithJson   Array of Accept Headers of type "json"
+    *
+    * @return string "Accept" Header (e.g. "application/json, text/html; q=0.9")
+    */
+    private function getAcceptHeaderWithAdjustedWeight(array $accept, array $headersWithJson): string
+    {
+        $processedHeaders = [
+            'withApplicationJson' => [],
+            'withJson' => [],
+            'withoutJson' => [],
+        ];
+
+        foreach ($accept as $header) {
+
+            $headerData = $this->getHeaderAndWeight($header);
+
+            if (stripos($headerData['header'], 'application/json') === 0) {
+                $processedHeaders['withApplicationJson'][] = $headerData;
+            } elseif (in_array($header, $headersWithJson, true)) {
+                $processedHeaders['withJson'][] = $headerData;
+            } else {
+                $processedHeaders['withoutJson'][] = $headerData;
+            }
+        }
+
+        $acceptHeaders = [];
+        $currentWeight = 1000;
+
+        $hasMoreThan28Headers = count($accept) > 28;
+
+        foreach($processedHeaders as $headers) {
+            if (count($headers) > 0) {
+                $acceptHeaders[] = $this->adjustWeight($headers, $currentWeight, $hasMoreThan28Headers);
+            }
+        }
+
+        $acceptHeaders = array_merge(...$acceptHeaders);
+
+        return implode(',', $acceptHeaders);
     }
 
     /**
-     * Return the content type based on an array of content-type provided
+     * Given an Accept header, returns an associative array splitting the header and its weight
      *
-     * @param string[] $contentType Array fo content-type
+     * @param string $header "Accept" Header
      *
-     * @return string Content-Type (e.g. application/json)
+     * @return array with the header and its weight
      */
-    private function selectContentTypeHeader($contentType)
+    private function getHeaderAndWeight(string $header): array
     {
-        if (count($contentType) === 0 || (count($contentType) === 1 && $contentType[0] === '')) {
-            return 'application/json';
-        } elseif (preg_grep("/application\/json/i", $contentType)) {
-            return 'application/json';
+        # matches headers with weight, splitting the header and the weight in $outputArray
+        if (preg_match('/(.*);\s*q=(1(?:\.0+)?|0\.\d+)$/', $header, $outputArray) === 1) {
+            $headerData = [
+                'header' => $outputArray[1],
+                'weight' => (int)($outputArray[2] * 1000),
+            ];
         } else {
-            return implode(',', $contentType);
+            $headerData = [
+                'header' => trim($header),
+                'weight' => 1000,
+            ];
+        }
+
+        return $headerData;
+    }
+
+    /**
+     * @param array[] $headers
+     * @param float   $currentWeight
+     * @param bool    $hasMoreThan28Headers
+     * @return string[] array of adjusted "Accept" headers
+     */
+    private function adjustWeight(array $headers, float &$currentWeight, bool $hasMoreThan28Headers): array
+    {
+        usort($headers, function (array $a, array $b) {
+            return $b['weight'] - $a['weight'];
+        });
+
+        $acceptHeaders = [];
+        foreach ($headers as $index => $header) {
+            if($index > 0 && $headers[$index - 1]['weight'] > $header['weight'])
+            {
+                $currentWeight = $this->getNextWeight($currentWeight, $hasMoreThan28Headers);
+            }
+
+            $weight = $currentWeight;
+
+            $acceptHeaders[] = $this->buildAcceptHeader($header['header'], $weight);
+        }
+
+        $currentWeight = $this->getNextWeight($currentWeight, $hasMoreThan28Headers);
+
+        return $acceptHeaders;
+    }
+
+    /**
+     * @param string $header
+     * @param int    $weight
+     * @return string
+     */
+    private function buildAcceptHeader(string $header, int $weight): string
+    {
+        if($weight === 1000) {
+            return $header;
+        }
+
+        return trim($header, '; ') . ';q=' . rtrim(sprintf('%0.3f', $weight / 1000), '0');
+    }
+
+    /**
+     * Calculate the next weight, based on the current one.
+     *
+     * If there are less than 28 "Accept" headers, the weights will be decreased by 1 on its highest significant digit, using the
+     * following formula:
+     *
+     *    next weight = current weight - 10 ^ (floor(log(current weight - 1)))
+     *
+     *    ( current weight minus ( 10 raised to the power of ( floor of (log to the base 10 of ( current weight minus 1 ) ) ) ) )
+     *
+     * Starting from 1000, this generates the following series:
+     *
+     * 1000, 900, 800, 700, 600, 500, 400, 300, 200, 100, 90, 80, 70, 60, 50, 40, 30, 20, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1
+     *
+     * The resulting quality codes are closer to the average "normal" usage of them (like "q=0.9", "q=0.8" and so on), but it only works
+     * if there is a maximum of 28 "Accept" headers. If we have more than that (which is extremely unlikely), then we fall back to a 1-by-1
+     * decrement rule, which will result in quality codes like "q=0.999", "q=0.998" etc.
+     *
+     * @param int  $currentWeight varying from 1 to 1000 (will be divided by 1000 to build the quality value)
+     * @param bool $hasMoreThan28Headers
+     * @return int
+     */
+    public function getNextWeight(int $currentWeight, bool $hasMoreThan28Headers): int
+    {
+        if ($currentWeight <= 1) {
+            return 1;
+        }
+
+        if ($hasMoreThan28Headers) {
+            return $currentWeight - 1;
         }
+
+        return $currentWeight - 10 ** floor( log10($currentWeight - 1) );
     }
 }
diff --git a/codegen/Crm/Objects/Meetings/Model/AssociatedId.php b/codegen/Crm/Objects/Meetings/Model/AssociatedId.php
index e537622a..32f5d0b9 100644
--- a/codegen/Crm/Objects/Meetings/Model/AssociatedId.php
+++ b/codegen/Crm/Objects/Meetings/Model/AssociatedId.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -73,6 +73,23 @@ class AssociatedId implements ModelInterface, ArrayAccess, \JsonSerializable
         'type' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'id' => false,
+        'type' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -93,6 +110,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -181,8 +250,26 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['id'] = $data['id'] ?? null;
-        $this->container['type'] = $data['type'] ?? null;
+        $this->setIfExists('id', $data ?? [], null);
+        $this->setIfExists('type', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -234,6 +321,9 @@ public function getId()
      */
     public function setId($id)
     {
+        if (is_null($id)) {
+            throw new \InvalidArgumentException('non-nullable id cannot be null');
+        }
         $this->container['id'] = $id;
 
         return $this;
@@ -258,6 +348,9 @@ public function getType()
      */
     public function setType($type)
     {
+        if (is_null($type)) {
+            throw new \InvalidArgumentException('non-nullable type cannot be null');
+        }
         $this->container['type'] = $type;
 
         return $this;
diff --git a/codegen/Crm/Objects/Meetings/Model/AssociationSpec.php b/codegen/Crm/Objects/Meetings/Model/AssociationSpec.php
index 2068fc84..f1ea92ae 100644
--- a/codegen/Crm/Objects/Meetings/Model/AssociationSpec.php
+++ b/codegen/Crm/Objects/Meetings/Model/AssociationSpec.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -73,6 +73,23 @@ class AssociationSpec implements ModelInterface, ArrayAccess, \JsonSerializable
         'association_type_id' => 'int32'
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'association_category' => false,
+        'association_type_id' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -93,6 +110,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -198,8 +267,26 @@ public function getAssociationCategoryAllowableValues()
      */
     public function __construct(array $data = null)
     {
-        $this->container['association_category'] = $data['association_category'] ?? null;
-        $this->container['association_type_id'] = $data['association_type_id'] ?? null;
+        $this->setIfExists('association_category', $data ?? [], null);
+        $this->setIfExists('association_type_id', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -260,6 +347,9 @@ public function getAssociationCategory()
      */
     public function setAssociationCategory($association_category)
     {
+        if (is_null($association_category)) {
+            throw new \InvalidArgumentException('non-nullable association_category cannot be null');
+        }
         $allowedValues = $this->getAssociationCategoryAllowableValues();
         if (!in_array($association_category, $allowedValues, true)) {
             throw new \InvalidArgumentException(
@@ -294,6 +384,9 @@ public function getAssociationTypeId()
      */
     public function setAssociationTypeId($association_type_id)
     {
+        if (is_null($association_type_id)) {
+            throw new \InvalidArgumentException('non-nullable association_type_id cannot be null');
+        }
         $this->container['association_type_id'] = $association_type_id;
 
         return $this;
diff --git a/codegen/Crm/Objects/Meetings/Model/BatchInputSimplePublicObjectBatchInput.php b/codegen/Crm/Objects/Meetings/Model/BatchInputSimplePublicObjectBatchInput.php
index bd61fdb8..66c6c8cf 100644
--- a/codegen/Crm/Objects/Meetings/Model/BatchInputSimplePublicObjectBatchInput.php
+++ b/codegen/Crm/Objects/Meetings/Model/BatchInputSimplePublicObjectBatchInput.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -71,6 +71,22 @@ class BatchInputSimplePublicObjectBatchInput implements ModelInterface, ArrayAcc
         'inputs' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'inputs' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -91,6 +107,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -176,7 +244,25 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['inputs'] = $data['inputs'] ?? null;
+        $this->setIfExists('inputs', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -225,6 +311,9 @@ public function getInputs()
      */
     public function setInputs($inputs)
     {
+        if (is_null($inputs)) {
+            throw new \InvalidArgumentException('non-nullable inputs cannot be null');
+        }
         $this->container['inputs'] = $inputs;
 
         return $this;
diff --git a/codegen/Crm/Objects/Meetings/Model/BatchInputSimplePublicObjectId.php b/codegen/Crm/Objects/Meetings/Model/BatchInputSimplePublicObjectId.php
index cb77da64..e75de2e4 100644
--- a/codegen/Crm/Objects/Meetings/Model/BatchInputSimplePublicObjectId.php
+++ b/codegen/Crm/Objects/Meetings/Model/BatchInputSimplePublicObjectId.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -71,6 +71,22 @@ class BatchInputSimplePublicObjectId implements ModelInterface, ArrayAccess, \Js
         'inputs' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'inputs' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -91,6 +107,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -176,7 +244,25 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['inputs'] = $data['inputs'] ?? null;
+        $this->setIfExists('inputs', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -225,6 +311,9 @@ public function getInputs()
      */
     public function setInputs($inputs)
     {
+        if (is_null($inputs)) {
+            throw new \InvalidArgumentException('non-nullable inputs cannot be null');
+        }
         $this->container['inputs'] = $inputs;
 
         return $this;
diff --git a/codegen/Crm/Objects/Meetings/Model/BatchInputSimplePublicObjectInputForCreate.php b/codegen/Crm/Objects/Meetings/Model/BatchInputSimplePublicObjectInputForCreate.php
index 442fd671..9728674e 100644
--- a/codegen/Crm/Objects/Meetings/Model/BatchInputSimplePublicObjectInputForCreate.php
+++ b/codegen/Crm/Objects/Meetings/Model/BatchInputSimplePublicObjectInputForCreate.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -71,6 +71,22 @@ class BatchInputSimplePublicObjectInputForCreate implements ModelInterface, Arra
         'inputs' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'inputs' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -91,6 +107,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -176,7 +244,25 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['inputs'] = $data['inputs'] ?? null;
+        $this->setIfExists('inputs', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -225,6 +311,9 @@ public function getInputs()
      */
     public function setInputs($inputs)
     {
+        if (is_null($inputs)) {
+            throw new \InvalidArgumentException('non-nullable inputs cannot be null');
+        }
         $this->container['inputs'] = $inputs;
 
         return $this;
diff --git a/codegen/Crm/Objects/Meetings/Model/BatchReadInputSimplePublicObjectId.php b/codegen/Crm/Objects/Meetings/Model/BatchReadInputSimplePublicObjectId.php
index 2f34e362..e6b8ff2d 100644
--- a/codegen/Crm/Objects/Meetings/Model/BatchReadInputSimplePublicObjectId.php
+++ b/codegen/Crm/Objects/Meetings/Model/BatchReadInputSimplePublicObjectId.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -77,6 +77,25 @@ class BatchReadInputSimplePublicObjectId implements ModelInterface, ArrayAccess,
         'properties' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'properties_with_history' => false,
+        'id_property' => false,
+        'inputs' => false,
+        'properties' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -97,6 +116,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -191,10 +262,28 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['properties_with_history'] = $data['properties_with_history'] ?? null;
-        $this->container['id_property'] = $data['id_property'] ?? null;
-        $this->container['inputs'] = $data['inputs'] ?? null;
-        $this->container['properties'] = $data['properties'] ?? null;
+        $this->setIfExists('properties_with_history', $data ?? [], null);
+        $this->setIfExists('id_property', $data ?? [], null);
+        $this->setIfExists('inputs', $data ?? [], null);
+        $this->setIfExists('properties', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -249,6 +338,9 @@ public function getPropertiesWithHistory()
      */
     public function setPropertiesWithHistory($properties_with_history)
     {
+        if (is_null($properties_with_history)) {
+            throw new \InvalidArgumentException('non-nullable properties_with_history cannot be null');
+        }
         $this->container['properties_with_history'] = $properties_with_history;
 
         return $this;
@@ -273,6 +365,9 @@ public function getIdProperty()
      */
     public function setIdProperty($id_property)
     {
+        if (is_null($id_property)) {
+            throw new \InvalidArgumentException('non-nullable id_property cannot be null');
+        }
         $this->container['id_property'] = $id_property;
 
         return $this;
@@ -297,6 +392,9 @@ public function getInputs()
      */
     public function setInputs($inputs)
     {
+        if (is_null($inputs)) {
+            throw new \InvalidArgumentException('non-nullable inputs cannot be null');
+        }
         $this->container['inputs'] = $inputs;
 
         return $this;
@@ -321,6 +419,9 @@ public function getProperties()
      */
     public function setProperties($properties)
     {
+        if (is_null($properties)) {
+            throw new \InvalidArgumentException('non-nullable properties cannot be null');
+        }
         $this->container['properties'] = $properties;
 
         return $this;
diff --git a/codegen/Crm/Objects/Meetings/Model/BatchResponseSimplePublicObject.php b/codegen/Crm/Objects/Meetings/Model/BatchResponseSimplePublicObject.php
index 97bb7708..f2769e0e 100644
--- a/codegen/Crm/Objects/Meetings/Model/BatchResponseSimplePublicObject.php
+++ b/codegen/Crm/Objects/Meetings/Model/BatchResponseSimplePublicObject.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -81,6 +81,27 @@ class BatchResponseSimplePublicObject implements ModelInterface, ArrayAccess, \J
         'status' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'completed_at' => false,
+        'requested_at' => false,
+        'started_at' => false,
+        'links' => false,
+        'results' => false,
+        'status' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -101,6 +122,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -220,12 +293,30 @@ public function getStatusAllowableValues()
      */
     public function __construct(array $data = null)
     {
-        $this->container['completed_at'] = $data['completed_at'] ?? null;
-        $this->container['requested_at'] = $data['requested_at'] ?? null;
-        $this->container['started_at'] = $data['started_at'] ?? null;
-        $this->container['links'] = $data['links'] ?? null;
-        $this->container['results'] = $data['results'] ?? null;
-        $this->container['status'] = $data['status'] ?? null;
+        $this->setIfExists('completed_at', $data ?? [], null);
+        $this->setIfExists('requested_at', $data ?? [], null);
+        $this->setIfExists('started_at', $data ?? [], null);
+        $this->setIfExists('links', $data ?? [], null);
+        $this->setIfExists('results', $data ?? [], null);
+        $this->setIfExists('status', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -292,6 +383,9 @@ public function getCompletedAt()
      */
     public function setCompletedAt($completed_at)
     {
+        if (is_null($completed_at)) {
+            throw new \InvalidArgumentException('non-nullable completed_at cannot be null');
+        }
         $this->container['completed_at'] = $completed_at;
 
         return $this;
@@ -316,6 +410,9 @@ public function getRequestedAt()
      */
     public function setRequestedAt($requested_at)
     {
+        if (is_null($requested_at)) {
+            throw new \InvalidArgumentException('non-nullable requested_at cannot be null');
+        }
         $this->container['requested_at'] = $requested_at;
 
         return $this;
@@ -340,6 +437,9 @@ public function getStartedAt()
      */
     public function setStartedAt($started_at)
     {
+        if (is_null($started_at)) {
+            throw new \InvalidArgumentException('non-nullable started_at cannot be null');
+        }
         $this->container['started_at'] = $started_at;
 
         return $this;
@@ -364,6 +464,9 @@ public function getLinks()
      */
     public function setLinks($links)
     {
+        if (is_null($links)) {
+            throw new \InvalidArgumentException('non-nullable links cannot be null');
+        }
         $this->container['links'] = $links;
 
         return $this;
@@ -388,6 +491,9 @@ public function getResults()
      */
     public function setResults($results)
     {
+        if (is_null($results)) {
+            throw new \InvalidArgumentException('non-nullable results cannot be null');
+        }
         $this->container['results'] = $results;
 
         return $this;
@@ -412,6 +518,9 @@ public function getStatus()
      */
     public function setStatus($status)
     {
+        if (is_null($status)) {
+            throw new \InvalidArgumentException('non-nullable status cannot be null');
+        }
         $allowedValues = $this->getStatusAllowableValues();
         if (!in_array($status, $allowedValues, true)) {
             throw new \InvalidArgumentException(
diff --git a/codegen/Crm/Objects/Meetings/Model/BatchResponseSimplePublicObjectWithErrors.php b/codegen/Crm/Objects/Meetings/Model/BatchResponseSimplePublicObjectWithErrors.php
index 06449a34..5c31780b 100644
--- a/codegen/Crm/Objects/Meetings/Model/BatchResponseSimplePublicObjectWithErrors.php
+++ b/codegen/Crm/Objects/Meetings/Model/BatchResponseSimplePublicObjectWithErrors.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -85,6 +85,29 @@ class BatchResponseSimplePublicObjectWithErrors implements ModelInterface, Array
         'status' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'completed_at' => false,
+        'num_errors' => false,
+        'requested_at' => false,
+        'started_at' => false,
+        'links' => false,
+        'results' => false,
+        'errors' => false,
+        'status' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -105,6 +128,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -230,14 +305,32 @@ public function getStatusAllowableValues()
      */
     public function __construct(array $data = null)
     {
-        $this->container['completed_at'] = $data['completed_at'] ?? null;
-        $this->container['num_errors'] = $data['num_errors'] ?? null;
-        $this->container['requested_at'] = $data['requested_at'] ?? null;
-        $this->container['started_at'] = $data['started_at'] ?? null;
-        $this->container['links'] = $data['links'] ?? null;
-        $this->container['results'] = $data['results'] ?? null;
-        $this->container['errors'] = $data['errors'] ?? null;
-        $this->container['status'] = $data['status'] ?? null;
+        $this->setIfExists('completed_at', $data ?? [], null);
+        $this->setIfExists('num_errors', $data ?? [], null);
+        $this->setIfExists('requested_at', $data ?? [], null);
+        $this->setIfExists('started_at', $data ?? [], null);
+        $this->setIfExists('links', $data ?? [], null);
+        $this->setIfExists('results', $data ?? [], null);
+        $this->setIfExists('errors', $data ?? [], null);
+        $this->setIfExists('status', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -304,6 +397,9 @@ public function getCompletedAt()
      */
     public function setCompletedAt($completed_at)
     {
+        if (is_null($completed_at)) {
+            throw new \InvalidArgumentException('non-nullable completed_at cannot be null');
+        }
         $this->container['completed_at'] = $completed_at;
 
         return $this;
@@ -328,6 +424,9 @@ public function getNumErrors()
      */
     public function setNumErrors($num_errors)
     {
+        if (is_null($num_errors)) {
+            throw new \InvalidArgumentException('non-nullable num_errors cannot be null');
+        }
         $this->container['num_errors'] = $num_errors;
 
         return $this;
@@ -352,6 +451,9 @@ public function getRequestedAt()
      */
     public function setRequestedAt($requested_at)
     {
+        if (is_null($requested_at)) {
+            throw new \InvalidArgumentException('non-nullable requested_at cannot be null');
+        }
         $this->container['requested_at'] = $requested_at;
 
         return $this;
@@ -376,6 +478,9 @@ public function getStartedAt()
      */
     public function setStartedAt($started_at)
     {
+        if (is_null($started_at)) {
+            throw new \InvalidArgumentException('non-nullable started_at cannot be null');
+        }
         $this->container['started_at'] = $started_at;
 
         return $this;
@@ -400,6 +505,9 @@ public function getLinks()
      */
     public function setLinks($links)
     {
+        if (is_null($links)) {
+            throw new \InvalidArgumentException('non-nullable links cannot be null');
+        }
         $this->container['links'] = $links;
 
         return $this;
@@ -424,6 +532,9 @@ public function getResults()
      */
     public function setResults($results)
     {
+        if (is_null($results)) {
+            throw new \InvalidArgumentException('non-nullable results cannot be null');
+        }
         $this->container['results'] = $results;
 
         return $this;
@@ -448,6 +559,9 @@ public function getErrors()
      */
     public function setErrors($errors)
     {
+        if (is_null($errors)) {
+            throw new \InvalidArgumentException('non-nullable errors cannot be null');
+        }
         $this->container['errors'] = $errors;
 
         return $this;
@@ -472,6 +586,9 @@ public function getStatus()
      */
     public function setStatus($status)
     {
+        if (is_null($status)) {
+            throw new \InvalidArgumentException('non-nullable status cannot be null');
+        }
         $allowedValues = $this->getStatusAllowableValues();
         if (!in_array($status, $allowedValues, true)) {
             throw new \InvalidArgumentException(
diff --git a/codegen/Crm/Objects/Meetings/Model/CollectionResponseAssociatedId.php b/codegen/Crm/Objects/Meetings/Model/CollectionResponseAssociatedId.php
index 40316f59..8998739f 100644
--- a/codegen/Crm/Objects/Meetings/Model/CollectionResponseAssociatedId.php
+++ b/codegen/Crm/Objects/Meetings/Model/CollectionResponseAssociatedId.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -73,6 +73,23 @@ class CollectionResponseAssociatedId implements ModelInterface, ArrayAccess, \Js
         'results' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'paging' => false,
+        'results' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -93,6 +110,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -181,8 +250,26 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['paging'] = $data['paging'] ?? null;
-        $this->container['results'] = $data['results'] ?? null;
+        $this->setIfExists('paging', $data ?? [], null);
+        $this->setIfExists('results', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -231,6 +318,9 @@ public function getPaging()
      */
     public function setPaging($paging)
     {
+        if (is_null($paging)) {
+            throw new \InvalidArgumentException('non-nullable paging cannot be null');
+        }
         $this->container['paging'] = $paging;
 
         return $this;
@@ -255,6 +345,9 @@ public function getResults()
      */
     public function setResults($results)
     {
+        if (is_null($results)) {
+            throw new \InvalidArgumentException('non-nullable results cannot be null');
+        }
         $this->container['results'] = $results;
 
         return $this;
diff --git a/codegen/Crm/Objects/Meetings/Model/CollectionResponseSimplePublicObjectWithAssociationsForwardPaging.php b/codegen/Crm/Objects/Meetings/Model/CollectionResponseSimplePublicObjectWithAssociationsForwardPaging.php
index 762deae6..71c139c5 100644
--- a/codegen/Crm/Objects/Meetings/Model/CollectionResponseSimplePublicObjectWithAssociationsForwardPaging.php
+++ b/codegen/Crm/Objects/Meetings/Model/CollectionResponseSimplePublicObjectWithAssociationsForwardPaging.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -73,6 +73,23 @@ class CollectionResponseSimplePublicObjectWithAssociationsForwardPaging implemen
         'results' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'paging' => false,
+        'results' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -93,6 +110,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -181,8 +250,26 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['paging'] = $data['paging'] ?? null;
-        $this->container['results'] = $data['results'] ?? null;
+        $this->setIfExists('paging', $data ?? [], null);
+        $this->setIfExists('results', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -231,6 +318,9 @@ public function getPaging()
      */
     public function setPaging($paging)
     {
+        if (is_null($paging)) {
+            throw new \InvalidArgumentException('non-nullable paging cannot be null');
+        }
         $this->container['paging'] = $paging;
 
         return $this;
@@ -255,6 +345,9 @@ public function getResults()
      */
     public function setResults($results)
     {
+        if (is_null($results)) {
+            throw new \InvalidArgumentException('non-nullable results cannot be null');
+        }
         $this->container['results'] = $results;
 
         return $this;
diff --git a/codegen/Crm/Objects/Meetings/Model/CollectionResponseWithTotalSimplePublicObjectForwardPaging.php b/codegen/Crm/Objects/Meetings/Model/CollectionResponseWithTotalSimplePublicObjectForwardPaging.php
index 43d7adcd..affcd7c3 100644
--- a/codegen/Crm/Objects/Meetings/Model/CollectionResponseWithTotalSimplePublicObjectForwardPaging.php
+++ b/codegen/Crm/Objects/Meetings/Model/CollectionResponseWithTotalSimplePublicObjectForwardPaging.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -75,6 +75,24 @@ class CollectionResponseWithTotalSimplePublicObjectForwardPaging implements Mode
         'results' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'total' => false,
+        'paging' => false,
+        'results' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -95,6 +113,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -186,9 +256,27 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['total'] = $data['total'] ?? null;
-        $this->container['paging'] = $data['paging'] ?? null;
-        $this->container['results'] = $data['results'] ?? null;
+        $this->setIfExists('total', $data ?? [], null);
+        $this->setIfExists('paging', $data ?? [], null);
+        $this->setIfExists('results', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -240,6 +328,9 @@ public function getTotal()
      */
     public function setTotal($total)
     {
+        if (is_null($total)) {
+            throw new \InvalidArgumentException('non-nullable total cannot be null');
+        }
         $this->container['total'] = $total;
 
         return $this;
@@ -264,6 +355,9 @@ public function getPaging()
      */
     public function setPaging($paging)
     {
+        if (is_null($paging)) {
+            throw new \InvalidArgumentException('non-nullable paging cannot be null');
+        }
         $this->container['paging'] = $paging;
 
         return $this;
@@ -288,6 +382,9 @@ public function getResults()
      */
     public function setResults($results)
     {
+        if (is_null($results)) {
+            throw new \InvalidArgumentException('non-nullable results cannot be null');
+        }
         $this->container['results'] = $results;
 
         return $this;
diff --git a/codegen/Crm/Objects/Meetings/Model/Error.php b/codegen/Crm/Objects/Meetings/Model/Error.php
index e2ac006d..81a18ef5 100644
--- a/codegen/Crm/Objects/Meetings/Model/Error.php
+++ b/codegen/Crm/Objects/Meetings/Model/Error.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -83,6 +83,28 @@ class Error implements ModelInterface, ArrayAccess, \JsonSerializable
         'errors' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'sub_category' => false,
+        'context' => false,
+        'correlation_id' => false,
+        'links' => false,
+        'message' => false,
+        'category' => false,
+        'errors' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -103,6 +125,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -206,13 +280,31 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['sub_category'] = $data['sub_category'] ?? null;
-        $this->container['context'] = $data['context'] ?? null;
-        $this->container['correlation_id'] = $data['correlation_id'] ?? null;
-        $this->container['links'] = $data['links'] ?? null;
-        $this->container['message'] = $data['message'] ?? null;
-        $this->container['category'] = $data['category'] ?? null;
-        $this->container['errors'] = $data['errors'] ?? null;
+        $this->setIfExists('sub_category', $data ?? [], null);
+        $this->setIfExists('context', $data ?? [], null);
+        $this->setIfExists('correlation_id', $data ?? [], null);
+        $this->setIfExists('links', $data ?? [], null);
+        $this->setIfExists('message', $data ?? [], null);
+        $this->setIfExists('category', $data ?? [], null);
+        $this->setIfExists('errors', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -267,6 +359,9 @@ public function getSubCategory()
      */
     public function setSubCategory($sub_category)
     {
+        if (is_null($sub_category)) {
+            throw new \InvalidArgumentException('non-nullable sub_category cannot be null');
+        }
         $this->container['sub_category'] = $sub_category;
 
         return $this;
@@ -291,6 +386,9 @@ public function getContext()
      */
     public function setContext($context)
     {
+        if (is_null($context)) {
+            throw new \InvalidArgumentException('non-nullable context cannot be null');
+        }
         $this->container['context'] = $context;
 
         return $this;
@@ -315,6 +413,9 @@ public function getCorrelationId()
      */
     public function setCorrelationId($correlation_id)
     {
+        if (is_null($correlation_id)) {
+            throw new \InvalidArgumentException('non-nullable correlation_id cannot be null');
+        }
         $this->container['correlation_id'] = $correlation_id;
 
         return $this;
@@ -339,6 +440,9 @@ public function getLinks()
      */
     public function setLinks($links)
     {
+        if (is_null($links)) {
+            throw new \InvalidArgumentException('non-nullable links cannot be null');
+        }
         $this->container['links'] = $links;
 
         return $this;
@@ -363,6 +467,9 @@ public function getMessage()
      */
     public function setMessage($message)
     {
+        if (is_null($message)) {
+            throw new \InvalidArgumentException('non-nullable message cannot be null');
+        }
         $this->container['message'] = $message;
 
         return $this;
@@ -387,6 +494,9 @@ public function getCategory()
      */
     public function setCategory($category)
     {
+        if (is_null($category)) {
+            throw new \InvalidArgumentException('non-nullable category cannot be null');
+        }
         $this->container['category'] = $category;
 
         return $this;
@@ -411,6 +521,9 @@ public function getErrors()
      */
     public function setErrors($errors)
     {
+        if (is_null($errors)) {
+            throw new \InvalidArgumentException('non-nullable errors cannot be null');
+        }
         $this->container['errors'] = $errors;
 
         return $this;
diff --git a/codegen/Crm/Objects/Meetings/Model/ErrorDetail.php b/codegen/Crm/Objects/Meetings/Model/ErrorDetail.php
index 04a76b1d..09b56763 100644
--- a/codegen/Crm/Objects/Meetings/Model/ErrorDetail.php
+++ b/codegen/Crm/Objects/Meetings/Model/ErrorDetail.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -79,6 +79,26 @@ class ErrorDetail implements ModelInterface, ArrayAccess, \JsonSerializable
         'message' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'sub_category' => false,
+        'code' => false,
+        'in' => false,
+        'context' => false,
+        'message' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -99,6 +119,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -196,11 +268,29 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['sub_category'] = $data['sub_category'] ?? null;
-        $this->container['code'] = $data['code'] ?? null;
-        $this->container['in'] = $data['in'] ?? null;
-        $this->container['context'] = $data['context'] ?? null;
-        $this->container['message'] = $data['message'] ?? null;
+        $this->setIfExists('sub_category', $data ?? [], null);
+        $this->setIfExists('code', $data ?? [], null);
+        $this->setIfExists('in', $data ?? [], null);
+        $this->setIfExists('context', $data ?? [], null);
+        $this->setIfExists('message', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -249,6 +339,9 @@ public function getSubCategory()
      */
     public function setSubCategory($sub_category)
     {
+        if (is_null($sub_category)) {
+            throw new \InvalidArgumentException('non-nullable sub_category cannot be null');
+        }
         $this->container['sub_category'] = $sub_category;
 
         return $this;
@@ -273,6 +366,9 @@ public function getCode()
      */
     public function setCode($code)
     {
+        if (is_null($code)) {
+            throw new \InvalidArgumentException('non-nullable code cannot be null');
+        }
         $this->container['code'] = $code;
 
         return $this;
@@ -297,6 +393,9 @@ public function getIn()
      */
     public function setIn($in)
     {
+        if (is_null($in)) {
+            throw new \InvalidArgumentException('non-nullable in cannot be null');
+        }
         $this->container['in'] = $in;
 
         return $this;
@@ -321,6 +420,9 @@ public function getContext()
      */
     public function setContext($context)
     {
+        if (is_null($context)) {
+            throw new \InvalidArgumentException('non-nullable context cannot be null');
+        }
         $this->container['context'] = $context;
 
         return $this;
@@ -345,6 +447,9 @@ public function getMessage()
      */
     public function setMessage($message)
     {
+        if (is_null($message)) {
+            throw new \InvalidArgumentException('non-nullable message cannot be null');
+        }
         $this->container['message'] = $message;
 
         return $this;
diff --git a/codegen/Crm/Objects/Meetings/Model/Filter.php b/codegen/Crm/Objects/Meetings/Model/Filter.php
index ac44f5cd..60d066f7 100644
--- a/codegen/Crm/Objects/Meetings/Model/Filter.php
+++ b/codegen/Crm/Objects/Meetings/Model/Filter.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -79,6 +79,26 @@ class Filter implements ModelInterface, ArrayAccess, \JsonSerializable
         'operator' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'high_value' => false,
+        'property_name' => false,
+        'values' => false,
+        'value' => false,
+        'operator' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -99,6 +119,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -233,11 +305,29 @@ public function getOperatorAllowableValues()
      */
     public function __construct(array $data = null)
     {
-        $this->container['high_value'] = $data['high_value'] ?? null;
-        $this->container['property_name'] = $data['property_name'] ?? null;
-        $this->container['values'] = $data['values'] ?? null;
-        $this->container['value'] = $data['value'] ?? null;
-        $this->container['operator'] = $data['operator'] ?? null;
+        $this->setIfExists('high_value', $data ?? [], null);
+        $this->setIfExists('property_name', $data ?? [], null);
+        $this->setIfExists('values', $data ?? [], null);
+        $this->setIfExists('value', $data ?? [], null);
+        $this->setIfExists('operator', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -298,6 +388,9 @@ public function getHighValue()
      */
     public function setHighValue($high_value)
     {
+        if (is_null($high_value)) {
+            throw new \InvalidArgumentException('non-nullable high_value cannot be null');
+        }
         $this->container['high_value'] = $high_value;
 
         return $this;
@@ -322,6 +415,9 @@ public function getPropertyName()
      */
     public function setPropertyName($property_name)
     {
+        if (is_null($property_name)) {
+            throw new \InvalidArgumentException('non-nullable property_name cannot be null');
+        }
         $this->container['property_name'] = $property_name;
 
         return $this;
@@ -346,6 +442,9 @@ public function getValues()
      */
     public function setValues($values)
     {
+        if (is_null($values)) {
+            throw new \InvalidArgumentException('non-nullable values cannot be null');
+        }
         $this->container['values'] = $values;
 
         return $this;
@@ -370,6 +469,9 @@ public function getValue()
      */
     public function setValue($value)
     {
+        if (is_null($value)) {
+            throw new \InvalidArgumentException('non-nullable value cannot be null');
+        }
         $this->container['value'] = $value;
 
         return $this;
@@ -394,6 +496,9 @@ public function getOperator()
      */
     public function setOperator($operator)
     {
+        if (is_null($operator)) {
+            throw new \InvalidArgumentException('non-nullable operator cannot be null');
+        }
         $allowedValues = $this->getOperatorAllowableValues();
         if (!in_array($operator, $allowedValues, true)) {
             throw new \InvalidArgumentException(
diff --git a/codegen/Crm/Objects/Meetings/Model/FilterGroup.php b/codegen/Crm/Objects/Meetings/Model/FilterGroup.php
index e9302a38..2e4b9d87 100644
--- a/codegen/Crm/Objects/Meetings/Model/FilterGroup.php
+++ b/codegen/Crm/Objects/Meetings/Model/FilterGroup.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -71,6 +71,22 @@ class FilterGroup implements ModelInterface, ArrayAccess, \JsonSerializable
         'filters' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'filters' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -91,6 +107,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -176,7 +244,25 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['filters'] = $data['filters'] ?? null;
+        $this->setIfExists('filters', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -225,6 +311,9 @@ public function getFilters()
      */
     public function setFilters($filters)
     {
+        if (is_null($filters)) {
+            throw new \InvalidArgumentException('non-nullable filters cannot be null');
+        }
         $this->container['filters'] = $filters;
 
         return $this;
diff --git a/codegen/Crm/Objects/Meetings/Model/ForwardPaging.php b/codegen/Crm/Objects/Meetings/Model/ForwardPaging.php
index cbac1775..f8f4bfc7 100644
--- a/codegen/Crm/Objects/Meetings/Model/ForwardPaging.php
+++ b/codegen/Crm/Objects/Meetings/Model/ForwardPaging.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -71,6 +71,22 @@ class ForwardPaging implements ModelInterface, ArrayAccess, \JsonSerializable
         'next' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'next' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -91,6 +107,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -176,7 +244,25 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['next'] = $data['next'] ?? null;
+        $this->setIfExists('next', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -222,6 +308,9 @@ public function getNext()
      */
     public function setNext($next)
     {
+        if (is_null($next)) {
+            throw new \InvalidArgumentException('non-nullable next cannot be null');
+        }
         $this->container['next'] = $next;
 
         return $this;
diff --git a/codegen/Crm/Objects/Meetings/Model/ModelInterface.php b/codegen/Crm/Objects/Meetings/Model/ModelInterface.php
index 5c52ed56..3449cd8a 100644
--- a/codegen/Crm/Objects/Meetings/Model/ModelInterface.php
+++ b/codegen/Crm/Objects/Meetings/Model/ModelInterface.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -92,4 +92,20 @@ public function listInvalidProperties();
      * @return bool
      */
     public function valid();
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool;
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool;
 }
diff --git a/codegen/Crm/Objects/Meetings/Model/NextPage.php b/codegen/Crm/Objects/Meetings/Model/NextPage.php
index dd997104..ef136e46 100644
--- a/codegen/Crm/Objects/Meetings/Model/NextPage.php
+++ b/codegen/Crm/Objects/Meetings/Model/NextPage.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -73,6 +73,23 @@ class NextPage implements ModelInterface, ArrayAccess, \JsonSerializable
         'after' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'link' => false,
+        'after' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -93,6 +110,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -181,8 +250,26 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['link'] = $data['link'] ?? null;
-        $this->container['after'] = $data['after'] ?? null;
+        $this->setIfExists('link', $data ?? [], null);
+        $this->setIfExists('after', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -231,6 +318,9 @@ public function getLink()
      */
     public function setLink($link)
     {
+        if (is_null($link)) {
+            throw new \InvalidArgumentException('non-nullable link cannot be null');
+        }
         $this->container['link'] = $link;
 
         return $this;
@@ -255,6 +345,9 @@ public function getAfter()
      */
     public function setAfter($after)
     {
+        if (is_null($after)) {
+            throw new \InvalidArgumentException('non-nullable after cannot be null');
+        }
         $this->container['after'] = $after;
 
         return $this;
diff --git a/codegen/Crm/Objects/Meetings/Model/Paging.php b/codegen/Crm/Objects/Meetings/Model/Paging.php
index 938cf007..85432803 100644
--- a/codegen/Crm/Objects/Meetings/Model/Paging.php
+++ b/codegen/Crm/Objects/Meetings/Model/Paging.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -73,6 +73,23 @@ class Paging implements ModelInterface, ArrayAccess, \JsonSerializable
         'prev' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'next' => false,
+        'prev' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -93,6 +110,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -181,8 +250,26 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['next'] = $data['next'] ?? null;
-        $this->container['prev'] = $data['prev'] ?? null;
+        $this->setIfExists('next', $data ?? [], null);
+        $this->setIfExists('prev', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -228,6 +315,9 @@ public function getNext()
      */
     public function setNext($next)
     {
+        if (is_null($next)) {
+            throw new \InvalidArgumentException('non-nullable next cannot be null');
+        }
         $this->container['next'] = $next;
 
         return $this;
@@ -252,6 +342,9 @@ public function getPrev()
      */
     public function setPrev($prev)
     {
+        if (is_null($prev)) {
+            throw new \InvalidArgumentException('non-nullable prev cannot be null');
+        }
         $this->container['prev'] = $prev;
 
         return $this;
diff --git a/codegen/Crm/Objects/Meetings/Model/PreviousPage.php b/codegen/Crm/Objects/Meetings/Model/PreviousPage.php
index 23c500d2..a0eb8abf 100644
--- a/codegen/Crm/Objects/Meetings/Model/PreviousPage.php
+++ b/codegen/Crm/Objects/Meetings/Model/PreviousPage.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -73,6 +73,23 @@ class PreviousPage implements ModelInterface, ArrayAccess, \JsonSerializable
         'link' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'before' => false,
+        'link' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -93,6 +110,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -181,8 +250,26 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['before'] = $data['before'] ?? null;
-        $this->container['link'] = $data['link'] ?? null;
+        $this->setIfExists('before', $data ?? [], null);
+        $this->setIfExists('link', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -231,6 +318,9 @@ public function getBefore()
      */
     public function setBefore($before)
     {
+        if (is_null($before)) {
+            throw new \InvalidArgumentException('non-nullable before cannot be null');
+        }
         $this->container['before'] = $before;
 
         return $this;
@@ -255,6 +345,9 @@ public function getLink()
      */
     public function setLink($link)
     {
+        if (is_null($link)) {
+            throw new \InvalidArgumentException('non-nullable link cannot be null');
+        }
         $this->container['link'] = $link;
 
         return $this;
diff --git a/codegen/Crm/Objects/Meetings/Model/PublicAssociationsForObject.php b/codegen/Crm/Objects/Meetings/Model/PublicAssociationsForObject.php
index ac91bfd3..b7255a22 100644
--- a/codegen/Crm/Objects/Meetings/Model/PublicAssociationsForObject.php
+++ b/codegen/Crm/Objects/Meetings/Model/PublicAssociationsForObject.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -73,6 +73,23 @@ class PublicAssociationsForObject implements ModelInterface, ArrayAccess, \JsonS
         'to' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'types' => false,
+        'to' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -93,6 +110,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -181,8 +250,26 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['types'] = $data['types'] ?? null;
-        $this->container['to'] = $data['to'] ?? null;
+        $this->setIfExists('types', $data ?? [], null);
+        $this->setIfExists('to', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -234,6 +321,9 @@ public function getTypes()
      */
     public function setTypes($types)
     {
+        if (is_null($types)) {
+            throw new \InvalidArgumentException('non-nullable types cannot be null');
+        }
         $this->container['types'] = $types;
 
         return $this;
@@ -258,6 +348,9 @@ public function getTo()
      */
     public function setTo($to)
     {
+        if (is_null($to)) {
+            throw new \InvalidArgumentException('non-nullable to cannot be null');
+        }
         $this->container['to'] = $to;
 
         return $this;
diff --git a/codegen/Crm/Objects/Meetings/Model/PublicGdprDeleteInput.php b/codegen/Crm/Objects/Meetings/Model/PublicGdprDeleteInput.php
index 75303309..0385b08d 100644
--- a/codegen/Crm/Objects/Meetings/Model/PublicGdprDeleteInput.php
+++ b/codegen/Crm/Objects/Meetings/Model/PublicGdprDeleteInput.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -73,6 +73,23 @@ class PublicGdprDeleteInput implements ModelInterface, ArrayAccess, \JsonSeriali
         'object_id' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'id_property' => false,
+        'object_id' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -93,6 +110,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -181,8 +250,26 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['id_property'] = $data['id_property'] ?? null;
-        $this->container['object_id'] = $data['object_id'] ?? null;
+        $this->setIfExists('id_property', $data ?? [], null);
+        $this->setIfExists('object_id', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -231,6 +318,9 @@ public function getIdProperty()
      */
     public function setIdProperty($id_property)
     {
+        if (is_null($id_property)) {
+            throw new \InvalidArgumentException('non-nullable id_property cannot be null');
+        }
         $this->container['id_property'] = $id_property;
 
         return $this;
@@ -255,6 +345,9 @@ public function getObjectId()
      */
     public function setObjectId($object_id)
     {
+        if (is_null($object_id)) {
+            throw new \InvalidArgumentException('non-nullable object_id cannot be null');
+        }
         $this->container['object_id'] = $object_id;
 
         return $this;
diff --git a/codegen/Crm/Objects/Meetings/Model/PublicMergeInput.php b/codegen/Crm/Objects/Meetings/Model/PublicMergeInput.php
index 6fc7bdb3..8637be41 100644
--- a/codegen/Crm/Objects/Meetings/Model/PublicMergeInput.php
+++ b/codegen/Crm/Objects/Meetings/Model/PublicMergeInput.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -73,6 +73,23 @@ class PublicMergeInput implements ModelInterface, ArrayAccess, \JsonSerializable
         'primary_object_id' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'object_id_to_merge' => false,
+        'primary_object_id' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -93,6 +110,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -181,8 +250,26 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['object_id_to_merge'] = $data['object_id_to_merge'] ?? null;
-        $this->container['primary_object_id'] = $data['primary_object_id'] ?? null;
+        $this->setIfExists('object_id_to_merge', $data ?? [], null);
+        $this->setIfExists('primary_object_id', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -234,6 +321,9 @@ public function getObjectIdToMerge()
      */
     public function setObjectIdToMerge($object_id_to_merge)
     {
+        if (is_null($object_id_to_merge)) {
+            throw new \InvalidArgumentException('non-nullable object_id_to_merge cannot be null');
+        }
         $this->container['object_id_to_merge'] = $object_id_to_merge;
 
         return $this;
@@ -258,6 +348,9 @@ public function getPrimaryObjectId()
      */
     public function setPrimaryObjectId($primary_object_id)
     {
+        if (is_null($primary_object_id)) {
+            throw new \InvalidArgumentException('non-nullable primary_object_id cannot be null');
+        }
         $this->container['primary_object_id'] = $primary_object_id;
 
         return $this;
diff --git a/codegen/Crm/Objects/Meetings/Model/PublicObjectId.php b/codegen/Crm/Objects/Meetings/Model/PublicObjectId.php
index 3c2cc8d8..a1cfcfbd 100644
--- a/codegen/Crm/Objects/Meetings/Model/PublicObjectId.php
+++ b/codegen/Crm/Objects/Meetings/Model/PublicObjectId.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -71,6 +71,22 @@ class PublicObjectId implements ModelInterface, ArrayAccess, \JsonSerializable
         'id' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'id' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -91,6 +107,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -176,7 +244,25 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['id'] = $data['id'] ?? null;
+        $this->setIfExists('id', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -225,6 +311,9 @@ public function getId()
      */
     public function setId($id)
     {
+        if (is_null($id)) {
+            throw new \InvalidArgumentException('non-nullable id cannot be null');
+        }
         $this->container['id'] = $id;
 
         return $this;
diff --git a/codegen/Crm/Objects/Meetings/Model/PublicObjectSearchRequest.php b/codegen/Crm/Objects/Meetings/Model/PublicObjectSearchRequest.php
index 4b399009..4af54a81 100644
--- a/codegen/Crm/Objects/Meetings/Model/PublicObjectSearchRequest.php
+++ b/codegen/Crm/Objects/Meetings/Model/PublicObjectSearchRequest.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -81,6 +81,27 @@ class PublicObjectSearchRequest implements ModelInterface, ArrayAccess, \JsonSer
         'filter_groups' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'query' => false,
+        'limit' => false,
+        'after' => false,
+        'sorts' => false,
+        'properties' => false,
+        'filter_groups' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -101,6 +122,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -201,12 +274,30 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['query'] = $data['query'] ?? null;
-        $this->container['limit'] = $data['limit'] ?? null;
-        $this->container['after'] = $data['after'] ?? null;
-        $this->container['sorts'] = $data['sorts'] ?? null;
-        $this->container['properties'] = $data['properties'] ?? null;
-        $this->container['filter_groups'] = $data['filter_groups'] ?? null;
+        $this->setIfExists('query', $data ?? [], null);
+        $this->setIfExists('limit', $data ?? [], null);
+        $this->setIfExists('after', $data ?? [], null);
+        $this->setIfExists('sorts', $data ?? [], null);
+        $this->setIfExists('properties', $data ?? [], null);
+        $this->setIfExists('filter_groups', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -267,6 +358,9 @@ public function getQuery()
      */
     public function setQuery($query)
     {
+        if (is_null($query)) {
+            throw new \InvalidArgumentException('non-nullable query cannot be null');
+        }
         $this->container['query'] = $query;
 
         return $this;
@@ -291,6 +385,9 @@ public function getLimit()
      */
     public function setLimit($limit)
     {
+        if (is_null($limit)) {
+            throw new \InvalidArgumentException('non-nullable limit cannot be null');
+        }
         $this->container['limit'] = $limit;
 
         return $this;
@@ -315,6 +412,9 @@ public function getAfter()
      */
     public function setAfter($after)
     {
+        if (is_null($after)) {
+            throw new \InvalidArgumentException('non-nullable after cannot be null');
+        }
         $this->container['after'] = $after;
 
         return $this;
@@ -339,6 +439,9 @@ public function getSorts()
      */
     public function setSorts($sorts)
     {
+        if (is_null($sorts)) {
+            throw new \InvalidArgumentException('non-nullable sorts cannot be null');
+        }
         $this->container['sorts'] = $sorts;
 
         return $this;
@@ -363,6 +466,9 @@ public function getProperties()
      */
     public function setProperties($properties)
     {
+        if (is_null($properties)) {
+            throw new \InvalidArgumentException('non-nullable properties cannot be null');
+        }
         $this->container['properties'] = $properties;
 
         return $this;
@@ -387,6 +493,9 @@ public function getFilterGroups()
      */
     public function setFilterGroups($filter_groups)
     {
+        if (is_null($filter_groups)) {
+            throw new \InvalidArgumentException('non-nullable filter_groups cannot be null');
+        }
         $this->container['filter_groups'] = $filter_groups;
 
         return $this;
diff --git a/codegen/Crm/Objects/Meetings/Model/SimplePublicObject.php b/codegen/Crm/Objects/Meetings/Model/SimplePublicObject.php
index 6abb12f1..4c6cf235 100644
--- a/codegen/Crm/Objects/Meetings/Model/SimplePublicObject.php
+++ b/codegen/Crm/Objects/Meetings/Model/SimplePublicObject.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -83,6 +83,28 @@ class SimplePublicObject implements ModelInterface, ArrayAccess, \JsonSerializab
         'updated_at' => 'date-time'
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'created_at' => false,
+        'archived' => false,
+        'archived_at' => false,
+        'properties_with_history' => false,
+        'id' => false,
+        'properties' => false,
+        'updated_at' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -103,6 +125,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -206,13 +280,31 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['created_at'] = $data['created_at'] ?? null;
-        $this->container['archived'] = $data['archived'] ?? null;
-        $this->container['archived_at'] = $data['archived_at'] ?? null;
-        $this->container['properties_with_history'] = $data['properties_with_history'] ?? null;
-        $this->container['id'] = $data['id'] ?? null;
-        $this->container['properties'] = $data['properties'] ?? null;
-        $this->container['updated_at'] = $data['updated_at'] ?? null;
+        $this->setIfExists('created_at', $data ?? [], null);
+        $this->setIfExists('archived', $data ?? [], null);
+        $this->setIfExists('archived_at', $data ?? [], null);
+        $this->setIfExists('properties_with_history', $data ?? [], null);
+        $this->setIfExists('id', $data ?? [], null);
+        $this->setIfExists('properties', $data ?? [], null);
+        $this->setIfExists('updated_at', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -270,6 +362,9 @@ public function getCreatedAt()
      */
     public function setCreatedAt($created_at)
     {
+        if (is_null($created_at)) {
+            throw new \InvalidArgumentException('non-nullable created_at cannot be null');
+        }
         $this->container['created_at'] = $created_at;
 
         return $this;
@@ -294,6 +389,9 @@ public function getArchived()
      */
     public function setArchived($archived)
     {
+        if (is_null($archived)) {
+            throw new \InvalidArgumentException('non-nullable archived cannot be null');
+        }
         $this->container['archived'] = $archived;
 
         return $this;
@@ -318,6 +416,9 @@ public function getArchivedAt()
      */
     public function setArchivedAt($archived_at)
     {
+        if (is_null($archived_at)) {
+            throw new \InvalidArgumentException('non-nullable archived_at cannot be null');
+        }
         $this->container['archived_at'] = $archived_at;
 
         return $this;
@@ -342,6 +443,9 @@ public function getPropertiesWithHistory()
      */
     public function setPropertiesWithHistory($properties_with_history)
     {
+        if (is_null($properties_with_history)) {
+            throw new \InvalidArgumentException('non-nullable properties_with_history cannot be null');
+        }
         $this->container['properties_with_history'] = $properties_with_history;
 
         return $this;
@@ -366,6 +470,9 @@ public function getId()
      */
     public function setId($id)
     {
+        if (is_null($id)) {
+            throw new \InvalidArgumentException('non-nullable id cannot be null');
+        }
         $this->container['id'] = $id;
 
         return $this;
@@ -390,6 +497,9 @@ public function getProperties()
      */
     public function setProperties($properties)
     {
+        if (is_null($properties)) {
+            throw new \InvalidArgumentException('non-nullable properties cannot be null');
+        }
         $this->container['properties'] = $properties;
 
         return $this;
@@ -414,6 +524,9 @@ public function getUpdatedAt()
      */
     public function setUpdatedAt($updated_at)
     {
+        if (is_null($updated_at)) {
+            throw new \InvalidArgumentException('non-nullable updated_at cannot be null');
+        }
         $this->container['updated_at'] = $updated_at;
 
         return $this;
diff --git a/codegen/Crm/Objects/Meetings/Model/SimplePublicObjectBatchInput.php b/codegen/Crm/Objects/Meetings/Model/SimplePublicObjectBatchInput.php
index 523226c6..d10edc40 100644
--- a/codegen/Crm/Objects/Meetings/Model/SimplePublicObjectBatchInput.php
+++ b/codegen/Crm/Objects/Meetings/Model/SimplePublicObjectBatchInput.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -75,6 +75,24 @@ class SimplePublicObjectBatchInput implements ModelInterface, ArrayAccess, \Json
         'properties' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'id_property' => false,
+        'id' => false,
+        'properties' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -95,6 +113,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -186,9 +256,27 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['id_property'] = $data['id_property'] ?? null;
-        $this->container['id'] = $data['id'] ?? null;
-        $this->container['properties'] = $data['properties'] ?? null;
+        $this->setIfExists('id_property', $data ?? [], null);
+        $this->setIfExists('id', $data ?? [], null);
+        $this->setIfExists('properties', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -240,6 +328,9 @@ public function getIdProperty()
      */
     public function setIdProperty($id_property)
     {
+        if (is_null($id_property)) {
+            throw new \InvalidArgumentException('non-nullable id_property cannot be null');
+        }
         $this->container['id_property'] = $id_property;
 
         return $this;
@@ -264,6 +355,9 @@ public function getId()
      */
     public function setId($id)
     {
+        if (is_null($id)) {
+            throw new \InvalidArgumentException('non-nullable id cannot be null');
+        }
         $this->container['id'] = $id;
 
         return $this;
@@ -288,6 +382,9 @@ public function getProperties()
      */
     public function setProperties($properties)
     {
+        if (is_null($properties)) {
+            throw new \InvalidArgumentException('non-nullable properties cannot be null');
+        }
         $this->container['properties'] = $properties;
 
         return $this;
diff --git a/codegen/Crm/Objects/Meetings/Model/SimplePublicObjectId.php b/codegen/Crm/Objects/Meetings/Model/SimplePublicObjectId.php
index 66e8c391..6653b928 100644
--- a/codegen/Crm/Objects/Meetings/Model/SimplePublicObjectId.php
+++ b/codegen/Crm/Objects/Meetings/Model/SimplePublicObjectId.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -71,6 +71,22 @@ class SimplePublicObjectId implements ModelInterface, ArrayAccess, \JsonSerializ
         'id' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'id' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -91,6 +107,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -176,7 +244,25 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['id'] = $data['id'] ?? null;
+        $this->setIfExists('id', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -225,6 +311,9 @@ public function getId()
      */
     public function setId($id)
     {
+        if (is_null($id)) {
+            throw new \InvalidArgumentException('non-nullable id cannot be null');
+        }
         $this->container['id'] = $id;
 
         return $this;
diff --git a/codegen/Crm/Objects/Meetings/Model/SimplePublicObjectInput.php b/codegen/Crm/Objects/Meetings/Model/SimplePublicObjectInput.php
index 59c09bc9..d98a7819 100644
--- a/codegen/Crm/Objects/Meetings/Model/SimplePublicObjectInput.php
+++ b/codegen/Crm/Objects/Meetings/Model/SimplePublicObjectInput.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -71,6 +71,22 @@ class SimplePublicObjectInput implements ModelInterface, ArrayAccess, \JsonSeria
         'properties' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'properties' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -91,6 +107,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -176,7 +244,25 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['properties'] = $data['properties'] ?? null;
+        $this->setIfExists('properties', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -225,6 +311,9 @@ public function getProperties()
      */
     public function setProperties($properties)
     {
+        if (is_null($properties)) {
+            throw new \InvalidArgumentException('non-nullable properties cannot be null');
+        }
         $this->container['properties'] = $properties;
 
         return $this;
diff --git a/codegen/Crm/Objects/Meetings/Model/SimplePublicObjectInputForCreate.php b/codegen/Crm/Objects/Meetings/Model/SimplePublicObjectInputForCreate.php
index 3eb4bdb5..a1d3db92 100644
--- a/codegen/Crm/Objects/Meetings/Model/SimplePublicObjectInputForCreate.php
+++ b/codegen/Crm/Objects/Meetings/Model/SimplePublicObjectInputForCreate.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -73,6 +73,23 @@ class SimplePublicObjectInputForCreate implements ModelInterface, ArrayAccess, \
         'properties' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'associations' => false,
+        'properties' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -93,6 +110,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -181,8 +250,26 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['associations'] = $data['associations'] ?? null;
-        $this->container['properties'] = $data['properties'] ?? null;
+        $this->setIfExists('associations', $data ?? [], null);
+        $this->setIfExists('properties', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -234,6 +321,9 @@ public function getAssociations()
      */
     public function setAssociations($associations)
     {
+        if (is_null($associations)) {
+            throw new \InvalidArgumentException('non-nullable associations cannot be null');
+        }
         $this->container['associations'] = $associations;
 
         return $this;
@@ -258,6 +348,9 @@ public function getProperties()
      */
     public function setProperties($properties)
     {
+        if (is_null($properties)) {
+            throw new \InvalidArgumentException('non-nullable properties cannot be null');
+        }
         $this->container['properties'] = $properties;
 
         return $this;
diff --git a/codegen/Crm/Objects/Meetings/Model/SimplePublicObjectWithAssociations.php b/codegen/Crm/Objects/Meetings/Model/SimplePublicObjectWithAssociations.php
index 916d4951..15cda13b 100644
--- a/codegen/Crm/Objects/Meetings/Model/SimplePublicObjectWithAssociations.php
+++ b/codegen/Crm/Objects/Meetings/Model/SimplePublicObjectWithAssociations.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -85,6 +85,29 @@ class SimplePublicObjectWithAssociations implements ModelInterface, ArrayAccess,
         'updated_at' => 'date-time'
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'associations' => false,
+        'created_at' => false,
+        'archived' => false,
+        'archived_at' => false,
+        'properties_with_history' => false,
+        'id' => false,
+        'properties' => false,
+        'updated_at' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -105,6 +128,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -211,14 +286,32 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['associations'] = $data['associations'] ?? null;
-        $this->container['created_at'] = $data['created_at'] ?? null;
-        $this->container['archived'] = $data['archived'] ?? null;
-        $this->container['archived_at'] = $data['archived_at'] ?? null;
-        $this->container['properties_with_history'] = $data['properties_with_history'] ?? null;
-        $this->container['id'] = $data['id'] ?? null;
-        $this->container['properties'] = $data['properties'] ?? null;
-        $this->container['updated_at'] = $data['updated_at'] ?? null;
+        $this->setIfExists('associations', $data ?? [], null);
+        $this->setIfExists('created_at', $data ?? [], null);
+        $this->setIfExists('archived', $data ?? [], null);
+        $this->setIfExists('archived_at', $data ?? [], null);
+        $this->setIfExists('properties_with_history', $data ?? [], null);
+        $this->setIfExists('id', $data ?? [], null);
+        $this->setIfExists('properties', $data ?? [], null);
+        $this->setIfExists('updated_at', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -276,6 +369,9 @@ public function getAssociations()
      */
     public function setAssociations($associations)
     {
+        if (is_null($associations)) {
+            throw new \InvalidArgumentException('non-nullable associations cannot be null');
+        }
         $this->container['associations'] = $associations;
 
         return $this;
@@ -300,6 +396,9 @@ public function getCreatedAt()
      */
     public function setCreatedAt($created_at)
     {
+        if (is_null($created_at)) {
+            throw new \InvalidArgumentException('non-nullable created_at cannot be null');
+        }
         $this->container['created_at'] = $created_at;
 
         return $this;
@@ -324,6 +423,9 @@ public function getArchived()
      */
     public function setArchived($archived)
     {
+        if (is_null($archived)) {
+            throw new \InvalidArgumentException('non-nullable archived cannot be null');
+        }
         $this->container['archived'] = $archived;
 
         return $this;
@@ -348,6 +450,9 @@ public function getArchivedAt()
      */
     public function setArchivedAt($archived_at)
     {
+        if (is_null($archived_at)) {
+            throw new \InvalidArgumentException('non-nullable archived_at cannot be null');
+        }
         $this->container['archived_at'] = $archived_at;
 
         return $this;
@@ -372,6 +477,9 @@ public function getPropertiesWithHistory()
      */
     public function setPropertiesWithHistory($properties_with_history)
     {
+        if (is_null($properties_with_history)) {
+            throw new \InvalidArgumentException('non-nullable properties_with_history cannot be null');
+        }
         $this->container['properties_with_history'] = $properties_with_history;
 
         return $this;
@@ -396,6 +504,9 @@ public function getId()
      */
     public function setId($id)
     {
+        if (is_null($id)) {
+            throw new \InvalidArgumentException('non-nullable id cannot be null');
+        }
         $this->container['id'] = $id;
 
         return $this;
@@ -420,6 +531,9 @@ public function getProperties()
      */
     public function setProperties($properties)
     {
+        if (is_null($properties)) {
+            throw new \InvalidArgumentException('non-nullable properties cannot be null');
+        }
         $this->container['properties'] = $properties;
 
         return $this;
@@ -444,6 +558,9 @@ public function getUpdatedAt()
      */
     public function setUpdatedAt($updated_at)
     {
+        if (is_null($updated_at)) {
+            throw new \InvalidArgumentException('non-nullable updated_at cannot be null');
+        }
         $this->container['updated_at'] = $updated_at;
 
         return $this;
diff --git a/codegen/Crm/Objects/Meetings/Model/StandardError.php b/codegen/Crm/Objects/Meetings/Model/StandardError.php
index 1b9b7c16..f94b6fb6 100644
--- a/codegen/Crm/Objects/Meetings/Model/StandardError.php
+++ b/codegen/Crm/Objects/Meetings/Model/StandardError.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -85,6 +85,29 @@ class StandardError implements ModelInterface, ArrayAccess, \JsonSerializable
         'status' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'sub_category' => false,
+        'context' => false,
+        'links' => false,
+        'id' => false,
+        'category' => false,
+        'message' => false,
+        'errors' => false,
+        'status' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -105,6 +128,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -211,14 +286,32 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['sub_category'] = $data['sub_category'] ?? null;
-        $this->container['context'] = $data['context'] ?? null;
-        $this->container['links'] = $data['links'] ?? null;
-        $this->container['id'] = $data['id'] ?? null;
-        $this->container['category'] = $data['category'] ?? null;
-        $this->container['message'] = $data['message'] ?? null;
-        $this->container['errors'] = $data['errors'] ?? null;
-        $this->container['status'] = $data['status'] ?? null;
+        $this->setIfExists('sub_category', $data ?? [], null);
+        $this->setIfExists('context', $data ?? [], null);
+        $this->setIfExists('links', $data ?? [], null);
+        $this->setIfExists('id', $data ?? [], null);
+        $this->setIfExists('category', $data ?? [], null);
+        $this->setIfExists('message', $data ?? [], null);
+        $this->setIfExists('errors', $data ?? [], null);
+        $this->setIfExists('status', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -282,6 +375,9 @@ public function getSubCategory()
      */
     public function setSubCategory($sub_category)
     {
+        if (is_null($sub_category)) {
+            throw new \InvalidArgumentException('non-nullable sub_category cannot be null');
+        }
         $this->container['sub_category'] = $sub_category;
 
         return $this;
@@ -306,6 +402,9 @@ public function getContext()
      */
     public function setContext($context)
     {
+        if (is_null($context)) {
+            throw new \InvalidArgumentException('non-nullable context cannot be null');
+        }
         $this->container['context'] = $context;
 
         return $this;
@@ -330,6 +429,9 @@ public function getLinks()
      */
     public function setLinks($links)
     {
+        if (is_null($links)) {
+            throw new \InvalidArgumentException('non-nullable links cannot be null');
+        }
         $this->container['links'] = $links;
 
         return $this;
@@ -354,6 +456,9 @@ public function getId()
      */
     public function setId($id)
     {
+        if (is_null($id)) {
+            throw new \InvalidArgumentException('non-nullable id cannot be null');
+        }
         $this->container['id'] = $id;
 
         return $this;
@@ -378,6 +483,9 @@ public function getCategory()
      */
     public function setCategory($category)
     {
+        if (is_null($category)) {
+            throw new \InvalidArgumentException('non-nullable category cannot be null');
+        }
         $this->container['category'] = $category;
 
         return $this;
@@ -402,6 +510,9 @@ public function getMessage()
      */
     public function setMessage($message)
     {
+        if (is_null($message)) {
+            throw new \InvalidArgumentException('non-nullable message cannot be null');
+        }
         $this->container['message'] = $message;
 
         return $this;
@@ -426,6 +537,9 @@ public function getErrors()
      */
     public function setErrors($errors)
     {
+        if (is_null($errors)) {
+            throw new \InvalidArgumentException('non-nullable errors cannot be null');
+        }
         $this->container['errors'] = $errors;
 
         return $this;
@@ -450,6 +564,9 @@ public function getStatus()
      */
     public function setStatus($status)
     {
+        if (is_null($status)) {
+            throw new \InvalidArgumentException('non-nullable status cannot be null');
+        }
         $this->container['status'] = $status;
 
         return $this;
diff --git a/codegen/Crm/Objects/Meetings/Model/ValueWithTimestamp.php b/codegen/Crm/Objects/Meetings/Model/ValueWithTimestamp.php
index 8ae6005c..d1eeb906 100644
--- a/codegen/Crm/Objects/Meetings/Model/ValueWithTimestamp.php
+++ b/codegen/Crm/Objects/Meetings/Model/ValueWithTimestamp.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -81,6 +81,27 @@ class ValueWithTimestamp implements ModelInterface, ArrayAccess, \JsonSerializab
         'timestamp' => 'date-time'
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'source_id' => false,
+        'source_type' => false,
+        'source_label' => false,
+        'updated_by_user_id' => false,
+        'value' => false,
+        'timestamp' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -101,6 +122,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -201,12 +274,30 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['source_id'] = $data['source_id'] ?? null;
-        $this->container['source_type'] = $data['source_type'] ?? null;
-        $this->container['source_label'] = $data['source_label'] ?? null;
-        $this->container['updated_by_user_id'] = $data['updated_by_user_id'] ?? null;
-        $this->container['value'] = $data['value'] ?? null;
-        $this->container['timestamp'] = $data['timestamp'] ?? null;
+        $this->setIfExists('source_id', $data ?? [], null);
+        $this->setIfExists('source_type', $data ?? [], null);
+        $this->setIfExists('source_label', $data ?? [], null);
+        $this->setIfExists('updated_by_user_id', $data ?? [], null);
+        $this->setIfExists('value', $data ?? [], null);
+        $this->setIfExists('timestamp', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -261,6 +352,9 @@ public function getSourceId()
      */
     public function setSourceId($source_id)
     {
+        if (is_null($source_id)) {
+            throw new \InvalidArgumentException('non-nullable source_id cannot be null');
+        }
         $this->container['source_id'] = $source_id;
 
         return $this;
@@ -285,6 +379,9 @@ public function getSourceType()
      */
     public function setSourceType($source_type)
     {
+        if (is_null($source_type)) {
+            throw new \InvalidArgumentException('non-nullable source_type cannot be null');
+        }
         $this->container['source_type'] = $source_type;
 
         return $this;
@@ -309,6 +406,9 @@ public function getSourceLabel()
      */
     public function setSourceLabel($source_label)
     {
+        if (is_null($source_label)) {
+            throw new \InvalidArgumentException('non-nullable source_label cannot be null');
+        }
         $this->container['source_label'] = $source_label;
 
         return $this;
@@ -333,6 +433,9 @@ public function getUpdatedByUserId()
      */
     public function setUpdatedByUserId($updated_by_user_id)
     {
+        if (is_null($updated_by_user_id)) {
+            throw new \InvalidArgumentException('non-nullable updated_by_user_id cannot be null');
+        }
         $this->container['updated_by_user_id'] = $updated_by_user_id;
 
         return $this;
@@ -357,6 +460,9 @@ public function getValue()
      */
     public function setValue($value)
     {
+        if (is_null($value)) {
+            throw new \InvalidArgumentException('non-nullable value cannot be null');
+        }
         $this->container['value'] = $value;
 
         return $this;
@@ -381,6 +487,9 @@ public function getTimestamp()
      */
     public function setTimestamp($timestamp)
     {
+        if (is_null($timestamp)) {
+            throw new \InvalidArgumentException('non-nullable timestamp cannot be null');
+        }
         $this->container['timestamp'] = $timestamp;
 
         return $this;
diff --git a/codegen/Crm/Objects/Meetings/ObjectSerializer.php b/codegen/Crm/Objects/Meetings/ObjectSerializer.php
index 39948405..f54023b5 100644
--- a/codegen/Crm/Objects/Meetings/ObjectSerializer.php
+++ b/codegen/Crm/Objects/Meetings/ObjectSerializer.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -87,7 +87,7 @@ public static function sanitizeForSerialization($data, $type = null, $format = n
                 foreach ($data::openAPITypes() as $property => $openAPIType) {
                     $getter = $data::getters()[$property];
                     $value = $data->$getter();
-                    if ($value !== null && !in_array($openAPIType, ['\DateTime', '\SplFileObject', 'array', 'bool', 'boolean', 'byte', 'double', 'float', 'int', 'integer', 'mixed', 'number', 'object', 'string', 'void'], true)) {
+                    if ($value !== null && !in_array($openAPIType, ['\DateTime', '\SplFileObject', 'array', 'bool', 'boolean', 'byte', 'float', 'int', 'integer', 'mixed', 'number', 'object', 'string', 'void'], true)) {
                         $callable = [$openAPIType, 'getAllowableEnumValues'];
                         if (is_callable($callable)) {
                             /** array $callable */
@@ -98,7 +98,7 @@ public static function sanitizeForSerialization($data, $type = null, $format = n
                             }
                         }
                     }
-                    if ($value !== null) {
+                    if (($data::isNullable($property) && $data->isNullableSetToNull($property)) || $value !== null) {
                         $values[$data::attributeMap()[$property]] = self::sanitizeForSerialization($value, $openAPIType, $formats[$property]);
                     }
                 }
@@ -157,6 +157,49 @@ public static function toPathValue($value)
         return rawurlencode(self::toString($value));
     }
 
+    /**
+     * Checks if a value is empty, based on its OpenAPI type.
+     *
+     * @param mixed  $value
+     * @param string $openApiType
+     *
+     * @return bool true if $value is empty
+     */
+    private static function isEmptyValue($value, string $openApiType): bool
+    {
+        # If empty() returns false, it is not empty regardless of its type.
+        if (!empty($value)) {
+            return false;
+        }
+
+        # Null is always empty, as we cannot send a real "null" value in a query parameter.
+        if ($value === null) {
+            return true;
+        }
+
+        switch ($openApiType) {
+            # For numeric values, false and '' are considered empty.
+            # This comparison is safe for floating point values, since the previous call to empty() will
+            # filter out values that don't match 0.
+            case 'int':
+            case 'integer':
+                return $value !== 0;
+
+            case 'number':
+            case 'float':
+                return $value !== 0 && $value !== 0.0;
+
+            # For boolean values, '' is considered empty
+            case 'bool':
+            case 'boolean':
+                return !in_array($value, [false, 0], true);
+
+            # For all the other types, any value at this point can be considered empty.
+            default:
+                return true;
+        }
+    }
+
     /**
      * Take query parameter properties and turn it into an array suitable for
      * native http_build_query or GuzzleHttp\Psr7\Query::build.
@@ -178,10 +221,12 @@ public static function toQueryValue(
         bool $explode = true,
         bool $required = true
     ): array {
-        if (
-            empty($value)
-            && ($value !== false || $openApiType !== 'boolean') // if $value === false and $openApiType ==='boolean' it isn't empty
-        ) {
+
+        # Check if we should omit this parameter from the query. This should only happen when:
+        #  - Parameter is NOT required; AND
+        #  - its value is set to a value that is equivalent to "empty", depending on its OpenAPI type. For
+        #    example, 0 as "int" or "boolean" is NOT an empty value.
+        if (self::isEmptyValue($value, $openApiType)) {
             if ($required) {
                 return ["{$paramName}" => ''];
             } else {
@@ -189,6 +234,11 @@ public static function toQueryValue(
             }
         }
 
+        # Handle DateTime objects in query
+        if($openApiType === "\\DateTime" && $value instanceof \DateTime) {
+            return ["{$paramName}" => $value->format(self::$dateTimeFormat)];
+        }
+
         $query = [];
         $value = (in_array($openApiType, ['object', 'array'], true)) ? (array)$value : $value;
 
@@ -395,7 +445,7 @@ public static function deserialize($data, $class, $httpHeaders = null)
         }
 
         if ($class === '\DateTime') {
-            // Some API's return an invalid, empty string as a
+            // Some APIs return an invalid, empty string as a
             // date-time property. DateTime::__construct() will return
             // the current time for empty input which is probably not
             // what is meant. The invalid empty string is probably to
@@ -405,7 +455,7 @@ public static function deserialize($data, $class, $httpHeaders = null)
                 try {
                     return new \DateTime($data);
                 } catch (\Exception $exception) {
-                    // Some API's return a date-time with too high nanosecond
+                    // Some APIs return a date-time with too high nanosecond
                     // precision for php's DateTime to handle.
                     // With provided regexp 6 digits of microseconds saved
                     return new \DateTime(self::sanitizeTimestamp($data));
@@ -441,7 +491,7 @@ public static function deserialize($data, $class, $httpHeaders = null)
         }
 
         /** @psalm-suppress ParadoxicalCondition */
-        if (in_array($class, ['\DateTime', '\SplFileObject', 'array', 'bool', 'boolean', 'byte', 'double', 'float', 'int', 'integer', 'mixed', 'number', 'object', 'string', 'void'], true)) {
+        if (in_array($class, ['\DateTime', '\SplFileObject', 'array', 'bool', 'boolean', 'byte', 'float', 'int', 'integer', 'mixed', 'number', 'object', 'string', 'void'], true)) {
             settype($data, $class);
             return $data;
         }
@@ -455,6 +505,11 @@ public static function deserialize($data, $class, $httpHeaders = null)
             return $data;
         } else {
             $data = is_string($data) ? json_decode($data) : $data;
+
+            if (is_array($data)) {
+                $data = (object)$data;
+            }
+
             // If a discriminator is defined and points to a valid subclass, use it.
             $discriminator = $class::DISCRIMINATOR;
             if (!empty($discriminator) && isset($data->{$discriminator}) && is_string($data->{$discriminator})) {
@@ -469,7 +524,15 @@ public static function deserialize($data, $class, $httpHeaders = null)
             foreach ($instance::openAPITypes() as $property => $type) {
                 $propertySetter = $instance::setters()[$property];
 
-                if (!isset($propertySetter) || !isset($data->{$instance::attributeMap()[$property]})) {
+                if (!isset($propertySetter)) {
+                    continue;
+                }
+
+                if (!isset($data->{$instance::attributeMap()[$property]})) {
+                    if ($instance::isNullable($property)) {
+                        $instance->$propertySetter(null);
+                    }
+
                     continue;
                 }
 
diff --git a/codegen/Crm/Objects/Notes/Api/BasicApi.php b/codegen/Crm/Objects/Notes/Api/BasicApi.php
index 03958532..b6638491 100644
--- a/codegen/Crm/Objects/Notes/Api/BasicApi.php
+++ b/codegen/Crm/Objects/Notes/Api/BasicApi.php
@@ -16,7 +16,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -69,6 +69,25 @@ class BasicApi
      */
     protected $hostIndex;
 
+    /** @var string[] $contentTypes **/
+    public const contentTypes = [
+        'archive' => [
+            'application/json',
+        ],
+        'create' => [
+            'application/json',
+        ],
+        'getById' => [
+            'application/json',
+        ],
+        'getPage' => [
+            'application/json',
+        ],
+        'update' => [
+            'application/json',
+        ],
+    ];
+
     /**
      * @param ClientInterface $client
      * @param Configuration   $config
@@ -121,14 +140,15 @@ public function getConfig()
      * Archive
      *
      * @param  string $note_id note_id (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['archive'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Notes\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Notes\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return void
      */
-    public function archive($note_id)
+    public function archive($note_id, string $contentType = self::contentTypes['archive'][0])
     {
-        $this->archiveWithHttpInfo($note_id);
+        $this->archiveWithHttpInfo($note_id, $contentType);
     }
 
     /**
@@ -137,14 +157,15 @@ public function archive($note_id)
      * Archive
      *
      * @param  string $note_id (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['archive'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Notes\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Notes\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return array of null, HTTP status code, HTTP response headers (array of strings)
      */
-    public function archiveWithHttpInfo($note_id)
+    public function archiveWithHttpInfo($note_id, string $contentType = self::contentTypes['archive'][0])
     {
-        $request = $this->archiveRequest($note_id);
+        $request = $this->archiveRequest($note_id, $contentType);
 
         try {
             $options = $this->createHttpClientOption();
@@ -204,13 +225,14 @@ public function archiveWithHttpInfo($note_id)
      * Archive
      *
      * @param  string $note_id (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['archive'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function archiveAsync($note_id)
+    public function archiveAsync($note_id, string $contentType = self::contentTypes['archive'][0])
     {
-        return $this->archiveAsyncWithHttpInfo($note_id)
+        return $this->archiveAsyncWithHttpInfo($note_id, $contentType)
             ->then(
                 function ($response) {
                     return $response[0];
@@ -224,14 +246,15 @@ function ($response) {
      * Archive
      *
      * @param  string $note_id (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['archive'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function archiveAsyncWithHttpInfo($note_id)
+    public function archiveAsyncWithHttpInfo($note_id, string $contentType = self::contentTypes['archive'][0])
     {
         $returnType = '';
-        $request = $this->archiveRequest($note_id);
+        $request = $this->archiveRequest($note_id, $contentType);
 
         return $this->client
             ->sendAsync($request, $this->createHttpClientOption())
@@ -260,12 +283,14 @@ function ($exception) {
      * Create request for operation 'archive'
      *
      * @param  string $note_id (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['archive'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Psr7\Request
      */
-    public function archiveRequest($note_id)
+    public function archiveRequest($note_id, string $contentType = self::contentTypes['archive'][0])
     {
+
         // verify the required parameter 'note_id' is set
         if ($note_id === null || (is_array($note_id) && count($note_id) === 0)) {
             throw new \InvalidArgumentException(
@@ -273,6 +298,7 @@ public function archiveRequest($note_id)
             );
         }
 
+
         $resourcePath = '/crm/v3/objects/notes/{noteId}';
         $formParams = [];
         $queryParams = [];
@@ -292,16 +318,11 @@ public function archiveRequest($note_id)
         }
 
 
-        if ($multipart) {
-            $headers = $this->headerSelector->selectHeadersForMultipart(
-                ['*/*']
-            );
-        } else {
-            $headers = $this->headerSelector->selectHeaders(
-                ['*/*'],
-                []
-            );
-        }
+        $headers = $this->headerSelector->selectHeaders(
+            ['*/*', ],
+            $contentType,
+            $multipart
+        );
 
         // for model (json/xml)
         if (count($formParams) > 0) {
@@ -319,9 +340,9 @@ public function archiveRequest($note_id)
                 // for HTTP post (form)
                 $httpBody = new MultipartStream($multipartContents);
 
-            } elseif ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode($formParams);
-
+            } elseif (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the form parameters
+                $httpBody = \GuzzleHttp\Utils::jsonEncode($formParams);
             } else {
                 // for HTTP post (form)
                 $httpBody = ObjectSerializer::buildQuery($formParams);
@@ -344,10 +365,11 @@ public function archiveRequest($note_id)
             $headers
         );
 
+        $operationHost = $this->config->getHost();
         $query = ObjectSerializer::buildQuery($queryParams);
         return new Request(
             'DELETE',
-            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
+            $operationHost . $resourcePath . ($query ? "?{$query}" : ''),
             $headers,
             $httpBody
         );
@@ -359,14 +381,15 @@ public function archiveRequest($note_id)
      * Create
      *
      * @param  \HubSpot\Client\Crm\Objects\Notes\Model\SimplePublicObjectInputForCreate $simple_public_object_input_for_create simple_public_object_input_for_create (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['create'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Notes\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Notes\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return \HubSpot\Client\Crm\Objects\Notes\Model\SimplePublicObject|\HubSpot\Client\Crm\Objects\Notes\Model\Error
      */
-    public function create($simple_public_object_input_for_create)
+    public function create($simple_public_object_input_for_create, string $contentType = self::contentTypes['create'][0])
     {
-        list($response) = $this->createWithHttpInfo($simple_public_object_input_for_create);
+        list($response) = $this->createWithHttpInfo($simple_public_object_input_for_create, $contentType);
         return $response;
     }
 
@@ -376,14 +399,15 @@ public function create($simple_public_object_input_for_create)
      * Create
      *
      * @param  \HubSpot\Client\Crm\Objects\Notes\Model\SimplePublicObjectInputForCreate $simple_public_object_input_for_create (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['create'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Notes\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Notes\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return array of \HubSpot\Client\Crm\Objects\Notes\Model\SimplePublicObject|\HubSpot\Client\Crm\Objects\Notes\Model\Error, HTTP status code, HTTP response headers (array of strings)
      */
-    public function createWithHttpInfo($simple_public_object_input_for_create)
+    public function createWithHttpInfo($simple_public_object_input_for_create, string $contentType = self::contentTypes['create'][0])
     {
-        $request = $this->createRequest($simple_public_object_input_for_create);
+        $request = $this->createRequest($simple_public_object_input_for_create, $contentType);
 
         try {
             $options = $this->createHttpClientOption();
@@ -427,7 +451,19 @@ public function createWithHttpInfo($simple_public_object_input_for_create)
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Notes\Model\SimplePublicObject' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -442,7 +478,19 @@ public function createWithHttpInfo($simple_public_object_input_for_create)
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Notes\Model\Error' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -459,7 +507,19 @@ public function createWithHttpInfo($simple_public_object_input_for_create)
             } else {
                 $content = (string) $response->getBody();
                 if ($returnType !== 'string') {
-                    $content = json_decode($content);
+                    try {
+                        $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                    } catch (\JsonException $exception) {
+                        throw new ApiException(
+                            sprintf(
+                                'Error JSON decoding server response (%s)',
+                                $request->getUri()
+                            ),
+                            $statusCode,
+                            $response->getHeaders(),
+                            $content
+                        );
+                    }
                 }
             }
 
@@ -498,13 +558,14 @@ public function createWithHttpInfo($simple_public_object_input_for_create)
      * Create
      *
      * @param  \HubSpot\Client\Crm\Objects\Notes\Model\SimplePublicObjectInputForCreate $simple_public_object_input_for_create (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['create'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function createAsync($simple_public_object_input_for_create)
+    public function createAsync($simple_public_object_input_for_create, string $contentType = self::contentTypes['create'][0])
     {
-        return $this->createAsyncWithHttpInfo($simple_public_object_input_for_create)
+        return $this->createAsyncWithHttpInfo($simple_public_object_input_for_create, $contentType)
             ->then(
                 function ($response) {
                     return $response[0];
@@ -518,14 +579,15 @@ function ($response) {
      * Create
      *
      * @param  \HubSpot\Client\Crm\Objects\Notes\Model\SimplePublicObjectInputForCreate $simple_public_object_input_for_create (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['create'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function createAsyncWithHttpInfo($simple_public_object_input_for_create)
+    public function createAsyncWithHttpInfo($simple_public_object_input_for_create, string $contentType = self::contentTypes['create'][0])
     {
         $returnType = '\HubSpot\Client\Crm\Objects\Notes\Model\SimplePublicObject';
-        $request = $this->createRequest($simple_public_object_input_for_create);
+        $request = $this->createRequest($simple_public_object_input_for_create, $contentType);
 
         return $this->client
             ->sendAsync($request, $this->createHttpClientOption())
@@ -567,12 +629,14 @@ function ($exception) {
      * Create request for operation 'create'
      *
      * @param  \HubSpot\Client\Crm\Objects\Notes\Model\SimplePublicObjectInputForCreate $simple_public_object_input_for_create (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['create'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Psr7\Request
      */
-    public function createRequest($simple_public_object_input_for_create)
+    public function createRequest($simple_public_object_input_for_create, string $contentType = self::contentTypes['create'][0])
     {
+
         // verify the required parameter 'simple_public_object_input_for_create' is set
         if ($simple_public_object_input_for_create === null || (is_array($simple_public_object_input_for_create) && count($simple_public_object_input_for_create) === 0)) {
             throw new \InvalidArgumentException(
@@ -580,6 +644,7 @@ public function createRequest($simple_public_object_input_for_create)
             );
         }
 
+
         $resourcePath = '/crm/v3/objects/notes';
         $formParams = [];
         $queryParams = [];
@@ -591,21 +656,17 @@ public function createRequest($simple_public_object_input_for_create)
 
 
 
-        if ($multipart) {
-            $headers = $this->headerSelector->selectHeadersForMultipart(
-                ['application/json', '*/*']
-            );
-        } else {
-            $headers = $this->headerSelector->selectHeaders(
-                ['application/json', '*/*'],
-                ['application/json']
-            );
-        }
+        $headers = $this->headerSelector->selectHeaders(
+            ['application/json', '*/*', ],
+            $contentType,
+            $multipart
+        );
 
         // for model (json/xml)
         if (isset($simple_public_object_input_for_create)) {
-            if ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode(ObjectSerializer::sanitizeForSerialization($simple_public_object_input_for_create));
+            if (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the body
+                $httpBody = \GuzzleHttp\Utils::jsonEncode(ObjectSerializer::sanitizeForSerialization($simple_public_object_input_for_create));
             } else {
                 $httpBody = $simple_public_object_input_for_create;
             }
@@ -624,9 +685,9 @@ public function createRequest($simple_public_object_input_for_create)
                 // for HTTP post (form)
                 $httpBody = new MultipartStream($multipartContents);
 
-            } elseif ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode($formParams);
-
+            } elseif (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the form parameters
+                $httpBody = \GuzzleHttp\Utils::jsonEncode($formParams);
             } else {
                 // for HTTP post (form)
                 $httpBody = ObjectSerializer::buildQuery($formParams);
@@ -649,10 +710,11 @@ public function createRequest($simple_public_object_input_for_create)
             $headers
         );
 
+        $operationHost = $this->config->getHost();
         $query = ObjectSerializer::buildQuery($queryParams);
         return new Request(
             'POST',
-            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
+            $operationHost . $resourcePath . ($query ? "?{$query}" : ''),
             $headers,
             $httpBody
         );
@@ -669,14 +731,15 @@ public function createRequest($simple_public_object_input_for_create)
      * @param  string[] $associations A comma separated list of object types to retrieve associated IDs for. If any of the specified associations do not exist, they will be ignored. (optional)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
      * @param  string $id_property The name of a property whose values are unique for this object type (optional)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['getById'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Notes\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Notes\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return \HubSpot\Client\Crm\Objects\Notes\Model\SimplePublicObjectWithAssociations|\HubSpot\Client\Crm\Objects\Notes\Model\Error
      */
-    public function getById($note_id, $properties = null, $properties_with_history = null, $associations = null, $archived = false, $id_property = null)
+    public function getById($note_id, $properties = null, $properties_with_history = null, $associations = null, $archived = false, $id_property = null, string $contentType = self::contentTypes['getById'][0])
     {
-        list($response) = $this->getByIdWithHttpInfo($note_id, $properties, $properties_with_history, $associations, $archived, $id_property);
+        list($response) = $this->getByIdWithHttpInfo($note_id, $properties, $properties_with_history, $associations, $archived, $id_property, $contentType);
         return $response;
     }
 
@@ -691,14 +754,15 @@ public function getById($note_id, $properties = null, $properties_with_history =
      * @param  string[] $associations A comma separated list of object types to retrieve associated IDs for. If any of the specified associations do not exist, they will be ignored. (optional)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
      * @param  string $id_property The name of a property whose values are unique for this object type (optional)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['getById'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Notes\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Notes\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return array of \HubSpot\Client\Crm\Objects\Notes\Model\SimplePublicObjectWithAssociations|\HubSpot\Client\Crm\Objects\Notes\Model\Error, HTTP status code, HTTP response headers (array of strings)
      */
-    public function getByIdWithHttpInfo($note_id, $properties = null, $properties_with_history = null, $associations = null, $archived = false, $id_property = null)
+    public function getByIdWithHttpInfo($note_id, $properties = null, $properties_with_history = null, $associations = null, $archived = false, $id_property = null, string $contentType = self::contentTypes['getById'][0])
     {
-        $request = $this->getByIdRequest($note_id, $properties, $properties_with_history, $associations, $archived, $id_property);
+        $request = $this->getByIdRequest($note_id, $properties, $properties_with_history, $associations, $archived, $id_property, $contentType);
 
         try {
             $options = $this->createHttpClientOption();
@@ -742,7 +806,19 @@ public function getByIdWithHttpInfo($note_id, $properties = null, $properties_wi
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Notes\Model\SimplePublicObjectWithAssociations' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -757,7 +833,19 @@ public function getByIdWithHttpInfo($note_id, $properties = null, $properties_wi
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Notes\Model\Error' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -774,7 +862,19 @@ public function getByIdWithHttpInfo($note_id, $properties = null, $properties_wi
             } else {
                 $content = (string) $response->getBody();
                 if ($returnType !== 'string') {
-                    $content = json_decode($content);
+                    try {
+                        $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                    } catch (\JsonException $exception) {
+                        throw new ApiException(
+                            sprintf(
+                                'Error JSON decoding server response (%s)',
+                                $request->getUri()
+                            ),
+                            $statusCode,
+                            $response->getHeaders(),
+                            $content
+                        );
+                    }
                 }
             }
 
@@ -818,13 +918,14 @@ public function getByIdWithHttpInfo($note_id, $properties = null, $properties_wi
      * @param  string[] $associations A comma separated list of object types to retrieve associated IDs for. If any of the specified associations do not exist, they will be ignored. (optional)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
      * @param  string $id_property The name of a property whose values are unique for this object type (optional)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['getById'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function getByIdAsync($note_id, $properties = null, $properties_with_history = null, $associations = null, $archived = false, $id_property = null)
+    public function getByIdAsync($note_id, $properties = null, $properties_with_history = null, $associations = null, $archived = false, $id_property = null, string $contentType = self::contentTypes['getById'][0])
     {
-        return $this->getByIdAsyncWithHttpInfo($note_id, $properties, $properties_with_history, $associations, $archived, $id_property)
+        return $this->getByIdAsyncWithHttpInfo($note_id, $properties, $properties_with_history, $associations, $archived, $id_property, $contentType)
             ->then(
                 function ($response) {
                     return $response[0];
@@ -843,14 +944,15 @@ function ($response) {
      * @param  string[] $associations A comma separated list of object types to retrieve associated IDs for. If any of the specified associations do not exist, they will be ignored. (optional)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
      * @param  string $id_property The name of a property whose values are unique for this object type (optional)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['getById'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function getByIdAsyncWithHttpInfo($note_id, $properties = null, $properties_with_history = null, $associations = null, $archived = false, $id_property = null)
+    public function getByIdAsyncWithHttpInfo($note_id, $properties = null, $properties_with_history = null, $associations = null, $archived = false, $id_property = null, string $contentType = self::contentTypes['getById'][0])
     {
         $returnType = '\HubSpot\Client\Crm\Objects\Notes\Model\SimplePublicObjectWithAssociations';
-        $request = $this->getByIdRequest($note_id, $properties, $properties_with_history, $associations, $archived, $id_property);
+        $request = $this->getByIdRequest($note_id, $properties, $properties_with_history, $associations, $archived, $id_property, $contentType);
 
         return $this->client
             ->sendAsync($request, $this->createHttpClientOption())
@@ -897,12 +999,14 @@ function ($exception) {
      * @param  string[] $associations A comma separated list of object types to retrieve associated IDs for. If any of the specified associations do not exist, they will be ignored. (optional)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
      * @param  string $id_property The name of a property whose values are unique for this object type (optional)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['getById'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Psr7\Request
      */
-    public function getByIdRequest($note_id, $properties = null, $properties_with_history = null, $associations = null, $archived = false, $id_property = null)
+    public function getByIdRequest($note_id, $properties = null, $properties_with_history = null, $associations = null, $archived = false, $id_property = null, string $contentType = self::contentTypes['getById'][0])
     {
+
         // verify the required parameter 'note_id' is set
         if ($note_id === null || (is_array($note_id) && count($note_id) === 0)) {
             throw new \InvalidArgumentException(
@@ -910,6 +1014,12 @@ public function getByIdRequest($note_id, $properties = null, $properties_with_hi
             );
         }
 
+
+
+
+
+
+
         $resourcePath = '/crm/v3/objects/notes/{noteId}';
         $formParams = [];
         $queryParams = [];
@@ -974,16 +1084,11 @@ public function getByIdRequest($note_id, $properties = null, $properties_with_hi
         }
 
 
-        if ($multipart) {
-            $headers = $this->headerSelector->selectHeadersForMultipart(
-                ['application/json', '*/*']
-            );
-        } else {
-            $headers = $this->headerSelector->selectHeaders(
-                ['application/json', '*/*'],
-                []
-            );
-        }
+        $headers = $this->headerSelector->selectHeaders(
+            ['application/json', '*/*', ],
+            $contentType,
+            $multipart
+        );
 
         // for model (json/xml)
         if (count($formParams) > 0) {
@@ -1001,9 +1106,9 @@ public function getByIdRequest($note_id, $properties = null, $properties_with_hi
                 // for HTTP post (form)
                 $httpBody = new MultipartStream($multipartContents);
 
-            } elseif ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode($formParams);
-
+            } elseif (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the form parameters
+                $httpBody = \GuzzleHttp\Utils::jsonEncode($formParams);
             } else {
                 // for HTTP post (form)
                 $httpBody = ObjectSerializer::buildQuery($formParams);
@@ -1026,10 +1131,11 @@ public function getByIdRequest($note_id, $properties = null, $properties_with_hi
             $headers
         );
 
+        $operationHost = $this->config->getHost();
         $query = ObjectSerializer::buildQuery($queryParams);
         return new Request(
             'GET',
-            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
+            $operationHost . $resourcePath . ($query ? "?{$query}" : ''),
             $headers,
             $httpBody
         );
@@ -1046,14 +1152,15 @@ public function getByIdRequest($note_id, $properties = null, $properties_with_hi
      * @param  string[] $properties_with_history A comma separated list of the properties to be returned along with their history of previous values. If any of the specified properties are not present on the requested object(s), they will be ignored. Usage of this parameter will reduce the maximum number of objects that can be read by a single request. (optional)
      * @param  string[] $associations A comma separated list of object types to retrieve associated IDs for. If any of the specified associations do not exist, they will be ignored. (optional)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['getPage'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Notes\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Notes\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return \HubSpot\Client\Crm\Objects\Notes\Model\CollectionResponseSimplePublicObjectWithAssociationsForwardPaging|\HubSpot\Client\Crm\Objects\Notes\Model\Error
      */
-    public function getPage($limit = 10, $after = null, $properties = null, $properties_with_history = null, $associations = null, $archived = false)
+    public function getPage($limit = 10, $after = null, $properties = null, $properties_with_history = null, $associations = null, $archived = false, string $contentType = self::contentTypes['getPage'][0])
     {
-        list($response) = $this->getPageWithHttpInfo($limit, $after, $properties, $properties_with_history, $associations, $archived);
+        list($response) = $this->getPageWithHttpInfo($limit, $after, $properties, $properties_with_history, $associations, $archived, $contentType);
         return $response;
     }
 
@@ -1068,14 +1175,15 @@ public function getPage($limit = 10, $after = null, $properties = null, $propert
      * @param  string[] $properties_with_history A comma separated list of the properties to be returned along with their history of previous values. If any of the specified properties are not present on the requested object(s), they will be ignored. Usage of this parameter will reduce the maximum number of objects that can be read by a single request. (optional)
      * @param  string[] $associations A comma separated list of object types to retrieve associated IDs for. If any of the specified associations do not exist, they will be ignored. (optional)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['getPage'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Notes\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Notes\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return array of \HubSpot\Client\Crm\Objects\Notes\Model\CollectionResponseSimplePublicObjectWithAssociationsForwardPaging|\HubSpot\Client\Crm\Objects\Notes\Model\Error, HTTP status code, HTTP response headers (array of strings)
      */
-    public function getPageWithHttpInfo($limit = 10, $after = null, $properties = null, $properties_with_history = null, $associations = null, $archived = false)
+    public function getPageWithHttpInfo($limit = 10, $after = null, $properties = null, $properties_with_history = null, $associations = null, $archived = false, string $contentType = self::contentTypes['getPage'][0])
     {
-        $request = $this->getPageRequest($limit, $after, $properties, $properties_with_history, $associations, $archived);
+        $request = $this->getPageRequest($limit, $after, $properties, $properties_with_history, $associations, $archived, $contentType);
 
         try {
             $options = $this->createHttpClientOption();
@@ -1119,7 +1227,19 @@ public function getPageWithHttpInfo($limit = 10, $after = null, $properties = nu
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Notes\Model\CollectionResponseSimplePublicObjectWithAssociationsForwardPaging' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -1134,7 +1254,19 @@ public function getPageWithHttpInfo($limit = 10, $after = null, $properties = nu
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Notes\Model\Error' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -1151,7 +1283,19 @@ public function getPageWithHttpInfo($limit = 10, $after = null, $properties = nu
             } else {
                 $content = (string) $response->getBody();
                 if ($returnType !== 'string') {
-                    $content = json_decode($content);
+                    try {
+                        $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                    } catch (\JsonException $exception) {
+                        throw new ApiException(
+                            sprintf(
+                                'Error JSON decoding server response (%s)',
+                                $request->getUri()
+                            ),
+                            $statusCode,
+                            $response->getHeaders(),
+                            $content
+                        );
+                    }
                 }
             }
 
@@ -1195,13 +1339,14 @@ public function getPageWithHttpInfo($limit = 10, $after = null, $properties = nu
      * @param  string[] $properties_with_history A comma separated list of the properties to be returned along with their history of previous values. If any of the specified properties are not present on the requested object(s), they will be ignored. Usage of this parameter will reduce the maximum number of objects that can be read by a single request. (optional)
      * @param  string[] $associations A comma separated list of object types to retrieve associated IDs for. If any of the specified associations do not exist, they will be ignored. (optional)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['getPage'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function getPageAsync($limit = 10, $after = null, $properties = null, $properties_with_history = null, $associations = null, $archived = false)
+    public function getPageAsync($limit = 10, $after = null, $properties = null, $properties_with_history = null, $associations = null, $archived = false, string $contentType = self::contentTypes['getPage'][0])
     {
-        return $this->getPageAsyncWithHttpInfo($limit, $after, $properties, $properties_with_history, $associations, $archived)
+        return $this->getPageAsyncWithHttpInfo($limit, $after, $properties, $properties_with_history, $associations, $archived, $contentType)
             ->then(
                 function ($response) {
                     return $response[0];
@@ -1220,14 +1365,15 @@ function ($response) {
      * @param  string[] $properties_with_history A comma separated list of the properties to be returned along with their history of previous values. If any of the specified properties are not present on the requested object(s), they will be ignored. Usage of this parameter will reduce the maximum number of objects that can be read by a single request. (optional)
      * @param  string[] $associations A comma separated list of object types to retrieve associated IDs for. If any of the specified associations do not exist, they will be ignored. (optional)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['getPage'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function getPageAsyncWithHttpInfo($limit = 10, $after = null, $properties = null, $properties_with_history = null, $associations = null, $archived = false)
+    public function getPageAsyncWithHttpInfo($limit = 10, $after = null, $properties = null, $properties_with_history = null, $associations = null, $archived = false, string $contentType = self::contentTypes['getPage'][0])
     {
         $returnType = '\HubSpot\Client\Crm\Objects\Notes\Model\CollectionResponseSimplePublicObjectWithAssociationsForwardPaging';
-        $request = $this->getPageRequest($limit, $after, $properties, $properties_with_history, $associations, $archived);
+        $request = $this->getPageRequest($limit, $after, $properties, $properties_with_history, $associations, $archived, $contentType);
 
         return $this->client
             ->sendAsync($request, $this->createHttpClientOption())
@@ -1274,13 +1420,21 @@ function ($exception) {
      * @param  string[] $properties_with_history A comma separated list of the properties to be returned along with their history of previous values. If any of the specified properties are not present on the requested object(s), they will be ignored. Usage of this parameter will reduce the maximum number of objects that can be read by a single request. (optional)
      * @param  string[] $associations A comma separated list of object types to retrieve associated IDs for. If any of the specified associations do not exist, they will be ignored. (optional)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['getPage'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Psr7\Request
      */
-    public function getPageRequest($limit = 10, $after = null, $properties = null, $properties_with_history = null, $associations = null, $archived = false)
+    public function getPageRequest($limit = 10, $after = null, $properties = null, $properties_with_history = null, $associations = null, $archived = false, string $contentType = self::contentTypes['getPage'][0])
     {
 
+
+
+
+
+
+
+
         $resourcePath = '/crm/v3/objects/notes';
         $formParams = [];
         $queryParams = [];
@@ -1346,16 +1500,11 @@ public function getPageRequest($limit = 10, $after = null, $properties = null, $
 
 
 
-        if ($multipart) {
-            $headers = $this->headerSelector->selectHeadersForMultipart(
-                ['application/json', '*/*']
-            );
-        } else {
-            $headers = $this->headerSelector->selectHeaders(
-                ['application/json', '*/*'],
-                []
-            );
-        }
+        $headers = $this->headerSelector->selectHeaders(
+            ['application/json', '*/*', ],
+            $contentType,
+            $multipart
+        );
 
         // for model (json/xml)
         if (count($formParams) > 0) {
@@ -1373,9 +1522,9 @@ public function getPageRequest($limit = 10, $after = null, $properties = null, $
                 // for HTTP post (form)
                 $httpBody = new MultipartStream($multipartContents);
 
-            } elseif ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode($formParams);
-
+            } elseif (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the form parameters
+                $httpBody = \GuzzleHttp\Utils::jsonEncode($formParams);
             } else {
                 // for HTTP post (form)
                 $httpBody = ObjectSerializer::buildQuery($formParams);
@@ -1398,10 +1547,11 @@ public function getPageRequest($limit = 10, $after = null, $properties = null, $
             $headers
         );
 
+        $operationHost = $this->config->getHost();
         $query = ObjectSerializer::buildQuery($queryParams);
         return new Request(
             'GET',
-            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
+            $operationHost . $resourcePath . ($query ? "?{$query}" : ''),
             $headers,
             $httpBody
         );
@@ -1415,14 +1565,15 @@ public function getPageRequest($limit = 10, $after = null, $properties = null, $
      * @param  string $note_id note_id (required)
      * @param  \HubSpot\Client\Crm\Objects\Notes\Model\SimplePublicObjectInput $simple_public_object_input simple_public_object_input (required)
      * @param  string $id_property The name of a property whose values are unique for this object type (optional)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['update'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Notes\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Notes\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return \HubSpot\Client\Crm\Objects\Notes\Model\SimplePublicObject|\HubSpot\Client\Crm\Objects\Notes\Model\Error
      */
-    public function update($note_id, $simple_public_object_input, $id_property = null)
+    public function update($note_id, $simple_public_object_input, $id_property = null, string $contentType = self::contentTypes['update'][0])
     {
-        list($response) = $this->updateWithHttpInfo($note_id, $simple_public_object_input, $id_property);
+        list($response) = $this->updateWithHttpInfo($note_id, $simple_public_object_input, $id_property, $contentType);
         return $response;
     }
 
@@ -1434,14 +1585,15 @@ public function update($note_id, $simple_public_object_input, $id_property = nul
      * @param  string $note_id (required)
      * @param  \HubSpot\Client\Crm\Objects\Notes\Model\SimplePublicObjectInput $simple_public_object_input (required)
      * @param  string $id_property The name of a property whose values are unique for this object type (optional)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['update'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Notes\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Notes\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return array of \HubSpot\Client\Crm\Objects\Notes\Model\SimplePublicObject|\HubSpot\Client\Crm\Objects\Notes\Model\Error, HTTP status code, HTTP response headers (array of strings)
      */
-    public function updateWithHttpInfo($note_id, $simple_public_object_input, $id_property = null)
+    public function updateWithHttpInfo($note_id, $simple_public_object_input, $id_property = null, string $contentType = self::contentTypes['update'][0])
     {
-        $request = $this->updateRequest($note_id, $simple_public_object_input, $id_property);
+        $request = $this->updateRequest($note_id, $simple_public_object_input, $id_property, $contentType);
 
         try {
             $options = $this->createHttpClientOption();
@@ -1485,7 +1637,19 @@ public function updateWithHttpInfo($note_id, $simple_public_object_input, $id_pr
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Notes\Model\SimplePublicObject' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -1500,7 +1664,19 @@ public function updateWithHttpInfo($note_id, $simple_public_object_input, $id_pr
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Notes\Model\Error' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -1517,7 +1693,19 @@ public function updateWithHttpInfo($note_id, $simple_public_object_input, $id_pr
             } else {
                 $content = (string) $response->getBody();
                 if ($returnType !== 'string') {
-                    $content = json_decode($content);
+                    try {
+                        $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                    } catch (\JsonException $exception) {
+                        throw new ApiException(
+                            sprintf(
+                                'Error JSON decoding server response (%s)',
+                                $request->getUri()
+                            ),
+                            $statusCode,
+                            $response->getHeaders(),
+                            $content
+                        );
+                    }
                 }
             }
 
@@ -1558,13 +1746,14 @@ public function updateWithHttpInfo($note_id, $simple_public_object_input, $id_pr
      * @param  string $note_id (required)
      * @param  \HubSpot\Client\Crm\Objects\Notes\Model\SimplePublicObjectInput $simple_public_object_input (required)
      * @param  string $id_property The name of a property whose values are unique for this object type (optional)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['update'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function updateAsync($note_id, $simple_public_object_input, $id_property = null)
+    public function updateAsync($note_id, $simple_public_object_input, $id_property = null, string $contentType = self::contentTypes['update'][0])
     {
-        return $this->updateAsyncWithHttpInfo($note_id, $simple_public_object_input, $id_property)
+        return $this->updateAsyncWithHttpInfo($note_id, $simple_public_object_input, $id_property, $contentType)
             ->then(
                 function ($response) {
                     return $response[0];
@@ -1580,14 +1769,15 @@ function ($response) {
      * @param  string $note_id (required)
      * @param  \HubSpot\Client\Crm\Objects\Notes\Model\SimplePublicObjectInput $simple_public_object_input (required)
      * @param  string $id_property The name of a property whose values are unique for this object type (optional)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['update'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function updateAsyncWithHttpInfo($note_id, $simple_public_object_input, $id_property = null)
+    public function updateAsyncWithHttpInfo($note_id, $simple_public_object_input, $id_property = null, string $contentType = self::contentTypes['update'][0])
     {
         $returnType = '\HubSpot\Client\Crm\Objects\Notes\Model\SimplePublicObject';
-        $request = $this->updateRequest($note_id, $simple_public_object_input, $id_property);
+        $request = $this->updateRequest($note_id, $simple_public_object_input, $id_property, $contentType);
 
         return $this->client
             ->sendAsync($request, $this->createHttpClientOption())
@@ -1631,18 +1821,21 @@ function ($exception) {
      * @param  string $note_id (required)
      * @param  \HubSpot\Client\Crm\Objects\Notes\Model\SimplePublicObjectInput $simple_public_object_input (required)
      * @param  string $id_property The name of a property whose values are unique for this object type (optional)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['update'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Psr7\Request
      */
-    public function updateRequest($note_id, $simple_public_object_input, $id_property = null)
+    public function updateRequest($note_id, $simple_public_object_input, $id_property = null, string $contentType = self::contentTypes['update'][0])
     {
+
         // verify the required parameter 'note_id' is set
         if ($note_id === null || (is_array($note_id) && count($note_id) === 0)) {
             throw new \InvalidArgumentException(
                 'Missing the required parameter $note_id when calling update'
             );
         }
+
         // verify the required parameter 'simple_public_object_input' is set
         if ($simple_public_object_input === null || (is_array($simple_public_object_input) && count($simple_public_object_input) === 0)) {
             throw new \InvalidArgumentException(
@@ -1650,6 +1843,8 @@ public function updateRequest($note_id, $simple_public_object_input, $id_propert
             );
         }
 
+
+
         $resourcePath = '/crm/v3/objects/notes/{noteId}';
         $formParams = [];
         $queryParams = [];
@@ -1678,21 +1873,17 @@ public function updateRequest($note_id, $simple_public_object_input, $id_propert
         }
 
 
-        if ($multipart) {
-            $headers = $this->headerSelector->selectHeadersForMultipart(
-                ['application/json', '*/*']
-            );
-        } else {
-            $headers = $this->headerSelector->selectHeaders(
-                ['application/json', '*/*'],
-                ['application/json']
-            );
-        }
+        $headers = $this->headerSelector->selectHeaders(
+            ['application/json', '*/*', ],
+            $contentType,
+            $multipart
+        );
 
         // for model (json/xml)
         if (isset($simple_public_object_input)) {
-            if ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode(ObjectSerializer::sanitizeForSerialization($simple_public_object_input));
+            if (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the body
+                $httpBody = \GuzzleHttp\Utils::jsonEncode(ObjectSerializer::sanitizeForSerialization($simple_public_object_input));
             } else {
                 $httpBody = $simple_public_object_input;
             }
@@ -1711,9 +1902,9 @@ public function updateRequest($note_id, $simple_public_object_input, $id_propert
                 // for HTTP post (form)
                 $httpBody = new MultipartStream($multipartContents);
 
-            } elseif ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode($formParams);
-
+            } elseif (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the form parameters
+                $httpBody = \GuzzleHttp\Utils::jsonEncode($formParams);
             } else {
                 // for HTTP post (form)
                 $httpBody = ObjectSerializer::buildQuery($formParams);
@@ -1736,10 +1927,11 @@ public function updateRequest($note_id, $simple_public_object_input, $id_propert
             $headers
         );
 
+        $operationHost = $this->config->getHost();
         $query = ObjectSerializer::buildQuery($queryParams);
         return new Request(
             'PATCH',
-            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
+            $operationHost . $resourcePath . ($query ? "?{$query}" : ''),
             $headers,
             $httpBody
         );
diff --git a/codegen/Crm/Objects/Notes/Api/BatchApi.php b/codegen/Crm/Objects/Notes/Api/BatchApi.php
index dba5f312..7d60e755 100644
--- a/codegen/Crm/Objects/Notes/Api/BatchApi.php
+++ b/codegen/Crm/Objects/Notes/Api/BatchApi.php
@@ -16,7 +16,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -69,6 +69,22 @@ class BatchApi
      */
     protected $hostIndex;
 
+    /** @var string[] $contentTypes **/
+    public const contentTypes = [
+        'archive' => [
+            'application/json',
+        ],
+        'create' => [
+            'application/json',
+        ],
+        'read' => [
+            'application/json',
+        ],
+        'update' => [
+            'application/json',
+        ],
+    ];
+
     /**
      * @param ClientInterface $client
      * @param Configuration   $config
@@ -121,14 +137,15 @@ public function getConfig()
      * Archive a batch of notes by ID
      *
      * @param  \HubSpot\Client\Crm\Objects\Notes\Model\BatchInputSimplePublicObjectId $batch_input_simple_public_object_id batch_input_simple_public_object_id (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['archive'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Notes\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Notes\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return void
      */
-    public function archive($batch_input_simple_public_object_id)
+    public function archive($batch_input_simple_public_object_id, string $contentType = self::contentTypes['archive'][0])
     {
-        $this->archiveWithHttpInfo($batch_input_simple_public_object_id);
+        $this->archiveWithHttpInfo($batch_input_simple_public_object_id, $contentType);
     }
 
     /**
@@ -137,14 +154,15 @@ public function archive($batch_input_simple_public_object_id)
      * Archive a batch of notes by ID
      *
      * @param  \HubSpot\Client\Crm\Objects\Notes\Model\BatchInputSimplePublicObjectId $batch_input_simple_public_object_id (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['archive'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Notes\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Notes\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return array of null, HTTP status code, HTTP response headers (array of strings)
      */
-    public function archiveWithHttpInfo($batch_input_simple_public_object_id)
+    public function archiveWithHttpInfo($batch_input_simple_public_object_id, string $contentType = self::contentTypes['archive'][0])
     {
-        $request = $this->archiveRequest($batch_input_simple_public_object_id);
+        $request = $this->archiveRequest($batch_input_simple_public_object_id, $contentType);
 
         try {
             $options = $this->createHttpClientOption();
@@ -204,13 +222,14 @@ public function archiveWithHttpInfo($batch_input_simple_public_object_id)
      * Archive a batch of notes by ID
      *
      * @param  \HubSpot\Client\Crm\Objects\Notes\Model\BatchInputSimplePublicObjectId $batch_input_simple_public_object_id (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['archive'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function archiveAsync($batch_input_simple_public_object_id)
+    public function archiveAsync($batch_input_simple_public_object_id, string $contentType = self::contentTypes['archive'][0])
     {
-        return $this->archiveAsyncWithHttpInfo($batch_input_simple_public_object_id)
+        return $this->archiveAsyncWithHttpInfo($batch_input_simple_public_object_id, $contentType)
             ->then(
                 function ($response) {
                     return $response[0];
@@ -224,14 +243,15 @@ function ($response) {
      * Archive a batch of notes by ID
      *
      * @param  \HubSpot\Client\Crm\Objects\Notes\Model\BatchInputSimplePublicObjectId $batch_input_simple_public_object_id (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['archive'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function archiveAsyncWithHttpInfo($batch_input_simple_public_object_id)
+    public function archiveAsyncWithHttpInfo($batch_input_simple_public_object_id, string $contentType = self::contentTypes['archive'][0])
     {
         $returnType = '';
-        $request = $this->archiveRequest($batch_input_simple_public_object_id);
+        $request = $this->archiveRequest($batch_input_simple_public_object_id, $contentType);
 
         return $this->client
             ->sendAsync($request, $this->createHttpClientOption())
@@ -260,12 +280,14 @@ function ($exception) {
      * Create request for operation 'archive'
      *
      * @param  \HubSpot\Client\Crm\Objects\Notes\Model\BatchInputSimplePublicObjectId $batch_input_simple_public_object_id (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['archive'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Psr7\Request
      */
-    public function archiveRequest($batch_input_simple_public_object_id)
+    public function archiveRequest($batch_input_simple_public_object_id, string $contentType = self::contentTypes['archive'][0])
     {
+
         // verify the required parameter 'batch_input_simple_public_object_id' is set
         if ($batch_input_simple_public_object_id === null || (is_array($batch_input_simple_public_object_id) && count($batch_input_simple_public_object_id) === 0)) {
             throw new \InvalidArgumentException(
@@ -273,6 +295,7 @@ public function archiveRequest($batch_input_simple_public_object_id)
             );
         }
 
+
         $resourcePath = '/crm/v3/objects/notes/batch/archive';
         $formParams = [];
         $queryParams = [];
@@ -284,21 +307,17 @@ public function archiveRequest($batch_input_simple_public_object_id)
 
 
 
-        if ($multipart) {
-            $headers = $this->headerSelector->selectHeadersForMultipart(
-                ['*/*']
-            );
-        } else {
-            $headers = $this->headerSelector->selectHeaders(
-                ['*/*'],
-                ['application/json']
-            );
-        }
+        $headers = $this->headerSelector->selectHeaders(
+            ['*/*', ],
+            $contentType,
+            $multipart
+        );
 
         // for model (json/xml)
         if (isset($batch_input_simple_public_object_id)) {
-            if ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode(ObjectSerializer::sanitizeForSerialization($batch_input_simple_public_object_id));
+            if (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the body
+                $httpBody = \GuzzleHttp\Utils::jsonEncode(ObjectSerializer::sanitizeForSerialization($batch_input_simple_public_object_id));
             } else {
                 $httpBody = $batch_input_simple_public_object_id;
             }
@@ -317,9 +336,9 @@ public function archiveRequest($batch_input_simple_public_object_id)
                 // for HTTP post (form)
                 $httpBody = new MultipartStream($multipartContents);
 
-            } elseif ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode($formParams);
-
+            } elseif (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the form parameters
+                $httpBody = \GuzzleHttp\Utils::jsonEncode($formParams);
             } else {
                 // for HTTP post (form)
                 $httpBody = ObjectSerializer::buildQuery($formParams);
@@ -342,10 +361,11 @@ public function archiveRequest($batch_input_simple_public_object_id)
             $headers
         );
 
+        $operationHost = $this->config->getHost();
         $query = ObjectSerializer::buildQuery($queryParams);
         return new Request(
             'POST',
-            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
+            $operationHost . $resourcePath . ($query ? "?{$query}" : ''),
             $headers,
             $httpBody
         );
@@ -357,14 +377,15 @@ public function archiveRequest($batch_input_simple_public_object_id)
      * Create a batch of notes
      *
      * @param  \HubSpot\Client\Crm\Objects\Notes\Model\BatchInputSimplePublicObjectInputForCreate $batch_input_simple_public_object_input_for_create batch_input_simple_public_object_input_for_create (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['create'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Notes\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Notes\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return \HubSpot\Client\Crm\Objects\Notes\Model\BatchResponseSimplePublicObject|\HubSpot\Client\Crm\Objects\Notes\Model\BatchResponseSimplePublicObjectWithErrors|\HubSpot\Client\Crm\Objects\Notes\Model\Error
      */
-    public function create($batch_input_simple_public_object_input_for_create)
+    public function create($batch_input_simple_public_object_input_for_create, string $contentType = self::contentTypes['create'][0])
     {
-        list($response) = $this->createWithHttpInfo($batch_input_simple_public_object_input_for_create);
+        list($response) = $this->createWithHttpInfo($batch_input_simple_public_object_input_for_create, $contentType);
         return $response;
     }
 
@@ -374,14 +395,15 @@ public function create($batch_input_simple_public_object_input_for_create)
      * Create a batch of notes
      *
      * @param  \HubSpot\Client\Crm\Objects\Notes\Model\BatchInputSimplePublicObjectInputForCreate $batch_input_simple_public_object_input_for_create (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['create'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Notes\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Notes\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return array of \HubSpot\Client\Crm\Objects\Notes\Model\BatchResponseSimplePublicObject|\HubSpot\Client\Crm\Objects\Notes\Model\BatchResponseSimplePublicObjectWithErrors|\HubSpot\Client\Crm\Objects\Notes\Model\Error, HTTP status code, HTTP response headers (array of strings)
      */
-    public function createWithHttpInfo($batch_input_simple_public_object_input_for_create)
+    public function createWithHttpInfo($batch_input_simple_public_object_input_for_create, string $contentType = self::contentTypes['create'][0])
     {
-        $request = $this->createRequest($batch_input_simple_public_object_input_for_create);
+        $request = $this->createRequest($batch_input_simple_public_object_input_for_create, $contentType);
 
         try {
             $options = $this->createHttpClientOption();
@@ -425,7 +447,19 @@ public function createWithHttpInfo($batch_input_simple_public_object_input_for_c
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Notes\Model\BatchResponseSimplePublicObject' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -440,7 +474,19 @@ public function createWithHttpInfo($batch_input_simple_public_object_input_for_c
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Notes\Model\BatchResponseSimplePublicObjectWithErrors' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -455,7 +501,19 @@ public function createWithHttpInfo($batch_input_simple_public_object_input_for_c
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Notes\Model\Error' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -472,7 +530,19 @@ public function createWithHttpInfo($batch_input_simple_public_object_input_for_c
             } else {
                 $content = (string) $response->getBody();
                 if ($returnType !== 'string') {
-                    $content = json_decode($content);
+                    try {
+                        $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                    } catch (\JsonException $exception) {
+                        throw new ApiException(
+                            sprintf(
+                                'Error JSON decoding server response (%s)',
+                                $request->getUri()
+                            ),
+                            $statusCode,
+                            $response->getHeaders(),
+                            $content
+                        );
+                    }
                 }
             }
 
@@ -519,13 +589,14 @@ public function createWithHttpInfo($batch_input_simple_public_object_input_for_c
      * Create a batch of notes
      *
      * @param  \HubSpot\Client\Crm\Objects\Notes\Model\BatchInputSimplePublicObjectInputForCreate $batch_input_simple_public_object_input_for_create (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['create'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function createAsync($batch_input_simple_public_object_input_for_create)
+    public function createAsync($batch_input_simple_public_object_input_for_create, string $contentType = self::contentTypes['create'][0])
     {
-        return $this->createAsyncWithHttpInfo($batch_input_simple_public_object_input_for_create)
+        return $this->createAsyncWithHttpInfo($batch_input_simple_public_object_input_for_create, $contentType)
             ->then(
                 function ($response) {
                     return $response[0];
@@ -539,14 +610,15 @@ function ($response) {
      * Create a batch of notes
      *
      * @param  \HubSpot\Client\Crm\Objects\Notes\Model\BatchInputSimplePublicObjectInputForCreate $batch_input_simple_public_object_input_for_create (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['create'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function createAsyncWithHttpInfo($batch_input_simple_public_object_input_for_create)
+    public function createAsyncWithHttpInfo($batch_input_simple_public_object_input_for_create, string $contentType = self::contentTypes['create'][0])
     {
         $returnType = '\HubSpot\Client\Crm\Objects\Notes\Model\BatchResponseSimplePublicObject';
-        $request = $this->createRequest($batch_input_simple_public_object_input_for_create);
+        $request = $this->createRequest($batch_input_simple_public_object_input_for_create, $contentType);
 
         return $this->client
             ->sendAsync($request, $this->createHttpClientOption())
@@ -588,12 +660,14 @@ function ($exception) {
      * Create request for operation 'create'
      *
      * @param  \HubSpot\Client\Crm\Objects\Notes\Model\BatchInputSimplePublicObjectInputForCreate $batch_input_simple_public_object_input_for_create (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['create'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Psr7\Request
      */
-    public function createRequest($batch_input_simple_public_object_input_for_create)
+    public function createRequest($batch_input_simple_public_object_input_for_create, string $contentType = self::contentTypes['create'][0])
     {
+
         // verify the required parameter 'batch_input_simple_public_object_input_for_create' is set
         if ($batch_input_simple_public_object_input_for_create === null || (is_array($batch_input_simple_public_object_input_for_create) && count($batch_input_simple_public_object_input_for_create) === 0)) {
             throw new \InvalidArgumentException(
@@ -601,6 +675,7 @@ public function createRequest($batch_input_simple_public_object_input_for_create
             );
         }
 
+
         $resourcePath = '/crm/v3/objects/notes/batch/create';
         $formParams = [];
         $queryParams = [];
@@ -612,21 +687,17 @@ public function createRequest($batch_input_simple_public_object_input_for_create
 
 
 
-        if ($multipart) {
-            $headers = $this->headerSelector->selectHeadersForMultipart(
-                ['application/json', '*/*']
-            );
-        } else {
-            $headers = $this->headerSelector->selectHeaders(
-                ['application/json', '*/*'],
-                ['application/json']
-            );
-        }
+        $headers = $this->headerSelector->selectHeaders(
+            ['application/json', '*/*', ],
+            $contentType,
+            $multipart
+        );
 
         // for model (json/xml)
         if (isset($batch_input_simple_public_object_input_for_create)) {
-            if ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode(ObjectSerializer::sanitizeForSerialization($batch_input_simple_public_object_input_for_create));
+            if (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the body
+                $httpBody = \GuzzleHttp\Utils::jsonEncode(ObjectSerializer::sanitizeForSerialization($batch_input_simple_public_object_input_for_create));
             } else {
                 $httpBody = $batch_input_simple_public_object_input_for_create;
             }
@@ -645,9 +716,9 @@ public function createRequest($batch_input_simple_public_object_input_for_create
                 // for HTTP post (form)
                 $httpBody = new MultipartStream($multipartContents);
 
-            } elseif ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode($formParams);
-
+            } elseif (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the form parameters
+                $httpBody = \GuzzleHttp\Utils::jsonEncode($formParams);
             } else {
                 // for HTTP post (form)
                 $httpBody = ObjectSerializer::buildQuery($formParams);
@@ -670,10 +741,11 @@ public function createRequest($batch_input_simple_public_object_input_for_create
             $headers
         );
 
+        $operationHost = $this->config->getHost();
         $query = ObjectSerializer::buildQuery($queryParams);
         return new Request(
             'POST',
-            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
+            $operationHost . $resourcePath . ($query ? "?{$query}" : ''),
             $headers,
             $httpBody
         );
@@ -686,14 +758,15 @@ public function createRequest($batch_input_simple_public_object_input_for_create
      *
      * @param  \HubSpot\Client\Crm\Objects\Notes\Model\BatchReadInputSimplePublicObjectId $batch_read_input_simple_public_object_id batch_read_input_simple_public_object_id (required)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['read'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Notes\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Notes\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return \HubSpot\Client\Crm\Objects\Notes\Model\BatchResponseSimplePublicObject|\HubSpot\Client\Crm\Objects\Notes\Model\BatchResponseSimplePublicObjectWithErrors|\HubSpot\Client\Crm\Objects\Notes\Model\Error
      */
-    public function read($batch_read_input_simple_public_object_id, $archived = false)
+    public function read($batch_read_input_simple_public_object_id, $archived = false, string $contentType = self::contentTypes['read'][0])
     {
-        list($response) = $this->readWithHttpInfo($batch_read_input_simple_public_object_id, $archived);
+        list($response) = $this->readWithHttpInfo($batch_read_input_simple_public_object_id, $archived, $contentType);
         return $response;
     }
 
@@ -704,14 +777,15 @@ public function read($batch_read_input_simple_public_object_id, $archived = fals
      *
      * @param  \HubSpot\Client\Crm\Objects\Notes\Model\BatchReadInputSimplePublicObjectId $batch_read_input_simple_public_object_id (required)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['read'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Notes\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Notes\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return array of \HubSpot\Client\Crm\Objects\Notes\Model\BatchResponseSimplePublicObject|\HubSpot\Client\Crm\Objects\Notes\Model\BatchResponseSimplePublicObjectWithErrors|\HubSpot\Client\Crm\Objects\Notes\Model\Error, HTTP status code, HTTP response headers (array of strings)
      */
-    public function readWithHttpInfo($batch_read_input_simple_public_object_id, $archived = false)
+    public function readWithHttpInfo($batch_read_input_simple_public_object_id, $archived = false, string $contentType = self::contentTypes['read'][0])
     {
-        $request = $this->readRequest($batch_read_input_simple_public_object_id, $archived);
+        $request = $this->readRequest($batch_read_input_simple_public_object_id, $archived, $contentType);
 
         try {
             $options = $this->createHttpClientOption();
@@ -755,7 +829,19 @@ public function readWithHttpInfo($batch_read_input_simple_public_object_id, $arc
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Notes\Model\BatchResponseSimplePublicObject' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -770,7 +856,19 @@ public function readWithHttpInfo($batch_read_input_simple_public_object_id, $arc
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Notes\Model\BatchResponseSimplePublicObjectWithErrors' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -785,7 +883,19 @@ public function readWithHttpInfo($batch_read_input_simple_public_object_id, $arc
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Notes\Model\Error' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -802,7 +912,19 @@ public function readWithHttpInfo($batch_read_input_simple_public_object_id, $arc
             } else {
                 $content = (string) $response->getBody();
                 if ($returnType !== 'string') {
-                    $content = json_decode($content);
+                    try {
+                        $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                    } catch (\JsonException $exception) {
+                        throw new ApiException(
+                            sprintf(
+                                'Error JSON decoding server response (%s)',
+                                $request->getUri()
+                            ),
+                            $statusCode,
+                            $response->getHeaders(),
+                            $content
+                        );
+                    }
                 }
             }
 
@@ -850,13 +972,14 @@ public function readWithHttpInfo($batch_read_input_simple_public_object_id, $arc
      *
      * @param  \HubSpot\Client\Crm\Objects\Notes\Model\BatchReadInputSimplePublicObjectId $batch_read_input_simple_public_object_id (required)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['read'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function readAsync($batch_read_input_simple_public_object_id, $archived = false)
+    public function readAsync($batch_read_input_simple_public_object_id, $archived = false, string $contentType = self::contentTypes['read'][0])
     {
-        return $this->readAsyncWithHttpInfo($batch_read_input_simple_public_object_id, $archived)
+        return $this->readAsyncWithHttpInfo($batch_read_input_simple_public_object_id, $archived, $contentType)
             ->then(
                 function ($response) {
                     return $response[0];
@@ -871,14 +994,15 @@ function ($response) {
      *
      * @param  \HubSpot\Client\Crm\Objects\Notes\Model\BatchReadInputSimplePublicObjectId $batch_read_input_simple_public_object_id (required)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['read'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function readAsyncWithHttpInfo($batch_read_input_simple_public_object_id, $archived = false)
+    public function readAsyncWithHttpInfo($batch_read_input_simple_public_object_id, $archived = false, string $contentType = self::contentTypes['read'][0])
     {
         $returnType = '\HubSpot\Client\Crm\Objects\Notes\Model\BatchResponseSimplePublicObject';
-        $request = $this->readRequest($batch_read_input_simple_public_object_id, $archived);
+        $request = $this->readRequest($batch_read_input_simple_public_object_id, $archived, $contentType);
 
         return $this->client
             ->sendAsync($request, $this->createHttpClientOption())
@@ -921,12 +1045,14 @@ function ($exception) {
      *
      * @param  \HubSpot\Client\Crm\Objects\Notes\Model\BatchReadInputSimplePublicObjectId $batch_read_input_simple_public_object_id (required)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['read'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Psr7\Request
      */
-    public function readRequest($batch_read_input_simple_public_object_id, $archived = false)
+    public function readRequest($batch_read_input_simple_public_object_id, $archived = false, string $contentType = self::contentTypes['read'][0])
     {
+
         // verify the required parameter 'batch_read_input_simple_public_object_id' is set
         if ($batch_read_input_simple_public_object_id === null || (is_array($batch_read_input_simple_public_object_id) && count($batch_read_input_simple_public_object_id) === 0)) {
             throw new \InvalidArgumentException(
@@ -934,6 +1060,8 @@ public function readRequest($batch_read_input_simple_public_object_id, $archived
             );
         }
 
+
+
         $resourcePath = '/crm/v3/objects/notes/batch/read';
         $formParams = [];
         $queryParams = [];
@@ -954,21 +1082,17 @@ public function readRequest($batch_read_input_simple_public_object_id, $archived
 
 
 
-        if ($multipart) {
-            $headers = $this->headerSelector->selectHeadersForMultipart(
-                ['application/json', '*/*']
-            );
-        } else {
-            $headers = $this->headerSelector->selectHeaders(
-                ['application/json', '*/*'],
-                ['application/json']
-            );
-        }
+        $headers = $this->headerSelector->selectHeaders(
+            ['application/json', '*/*', ],
+            $contentType,
+            $multipart
+        );
 
         // for model (json/xml)
         if (isset($batch_read_input_simple_public_object_id)) {
-            if ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode(ObjectSerializer::sanitizeForSerialization($batch_read_input_simple_public_object_id));
+            if (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the body
+                $httpBody = \GuzzleHttp\Utils::jsonEncode(ObjectSerializer::sanitizeForSerialization($batch_read_input_simple_public_object_id));
             } else {
                 $httpBody = $batch_read_input_simple_public_object_id;
             }
@@ -987,9 +1111,9 @@ public function readRequest($batch_read_input_simple_public_object_id, $archived
                 // for HTTP post (form)
                 $httpBody = new MultipartStream($multipartContents);
 
-            } elseif ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode($formParams);
-
+            } elseif (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the form parameters
+                $httpBody = \GuzzleHttp\Utils::jsonEncode($formParams);
             } else {
                 // for HTTP post (form)
                 $httpBody = ObjectSerializer::buildQuery($formParams);
@@ -1012,10 +1136,11 @@ public function readRequest($batch_read_input_simple_public_object_id, $archived
             $headers
         );
 
+        $operationHost = $this->config->getHost();
         $query = ObjectSerializer::buildQuery($queryParams);
         return new Request(
             'POST',
-            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
+            $operationHost . $resourcePath . ($query ? "?{$query}" : ''),
             $headers,
             $httpBody
         );
@@ -1027,14 +1152,15 @@ public function readRequest($batch_read_input_simple_public_object_id, $archived
      * Update a batch of notes
      *
      * @param  \HubSpot\Client\Crm\Objects\Notes\Model\BatchInputSimplePublicObjectBatchInput $batch_input_simple_public_object_batch_input batch_input_simple_public_object_batch_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['update'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Notes\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Notes\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return \HubSpot\Client\Crm\Objects\Notes\Model\BatchResponseSimplePublicObject|\HubSpot\Client\Crm\Objects\Notes\Model\BatchResponseSimplePublicObjectWithErrors|\HubSpot\Client\Crm\Objects\Notes\Model\Error
      */
-    public function update($batch_input_simple_public_object_batch_input)
+    public function update($batch_input_simple_public_object_batch_input, string $contentType = self::contentTypes['update'][0])
     {
-        list($response) = $this->updateWithHttpInfo($batch_input_simple_public_object_batch_input);
+        list($response) = $this->updateWithHttpInfo($batch_input_simple_public_object_batch_input, $contentType);
         return $response;
     }
 
@@ -1044,14 +1170,15 @@ public function update($batch_input_simple_public_object_batch_input)
      * Update a batch of notes
      *
      * @param  \HubSpot\Client\Crm\Objects\Notes\Model\BatchInputSimplePublicObjectBatchInput $batch_input_simple_public_object_batch_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['update'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Notes\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Notes\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return array of \HubSpot\Client\Crm\Objects\Notes\Model\BatchResponseSimplePublicObject|\HubSpot\Client\Crm\Objects\Notes\Model\BatchResponseSimplePublicObjectWithErrors|\HubSpot\Client\Crm\Objects\Notes\Model\Error, HTTP status code, HTTP response headers (array of strings)
      */
-    public function updateWithHttpInfo($batch_input_simple_public_object_batch_input)
+    public function updateWithHttpInfo($batch_input_simple_public_object_batch_input, string $contentType = self::contentTypes['update'][0])
     {
-        $request = $this->updateRequest($batch_input_simple_public_object_batch_input);
+        $request = $this->updateRequest($batch_input_simple_public_object_batch_input, $contentType);
 
         try {
             $options = $this->createHttpClientOption();
@@ -1095,7 +1222,19 @@ public function updateWithHttpInfo($batch_input_simple_public_object_batch_input
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Notes\Model\BatchResponseSimplePublicObject' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -1110,7 +1249,19 @@ public function updateWithHttpInfo($batch_input_simple_public_object_batch_input
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Notes\Model\BatchResponseSimplePublicObjectWithErrors' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -1125,7 +1276,19 @@ public function updateWithHttpInfo($batch_input_simple_public_object_batch_input
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Notes\Model\Error' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -1142,7 +1305,19 @@ public function updateWithHttpInfo($batch_input_simple_public_object_batch_input
             } else {
                 $content = (string) $response->getBody();
                 if ($returnType !== 'string') {
-                    $content = json_decode($content);
+                    try {
+                        $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                    } catch (\JsonException $exception) {
+                        throw new ApiException(
+                            sprintf(
+                                'Error JSON decoding server response (%s)',
+                                $request->getUri()
+                            ),
+                            $statusCode,
+                            $response->getHeaders(),
+                            $content
+                        );
+                    }
                 }
             }
 
@@ -1189,13 +1364,14 @@ public function updateWithHttpInfo($batch_input_simple_public_object_batch_input
      * Update a batch of notes
      *
      * @param  \HubSpot\Client\Crm\Objects\Notes\Model\BatchInputSimplePublicObjectBatchInput $batch_input_simple_public_object_batch_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['update'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function updateAsync($batch_input_simple_public_object_batch_input)
+    public function updateAsync($batch_input_simple_public_object_batch_input, string $contentType = self::contentTypes['update'][0])
     {
-        return $this->updateAsyncWithHttpInfo($batch_input_simple_public_object_batch_input)
+        return $this->updateAsyncWithHttpInfo($batch_input_simple_public_object_batch_input, $contentType)
             ->then(
                 function ($response) {
                     return $response[0];
@@ -1209,14 +1385,15 @@ function ($response) {
      * Update a batch of notes
      *
      * @param  \HubSpot\Client\Crm\Objects\Notes\Model\BatchInputSimplePublicObjectBatchInput $batch_input_simple_public_object_batch_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['update'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function updateAsyncWithHttpInfo($batch_input_simple_public_object_batch_input)
+    public function updateAsyncWithHttpInfo($batch_input_simple_public_object_batch_input, string $contentType = self::contentTypes['update'][0])
     {
         $returnType = '\HubSpot\Client\Crm\Objects\Notes\Model\BatchResponseSimplePublicObject';
-        $request = $this->updateRequest($batch_input_simple_public_object_batch_input);
+        $request = $this->updateRequest($batch_input_simple_public_object_batch_input, $contentType);
 
         return $this->client
             ->sendAsync($request, $this->createHttpClientOption())
@@ -1258,12 +1435,14 @@ function ($exception) {
      * Create request for operation 'update'
      *
      * @param  \HubSpot\Client\Crm\Objects\Notes\Model\BatchInputSimplePublicObjectBatchInput $batch_input_simple_public_object_batch_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['update'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Psr7\Request
      */
-    public function updateRequest($batch_input_simple_public_object_batch_input)
+    public function updateRequest($batch_input_simple_public_object_batch_input, string $contentType = self::contentTypes['update'][0])
     {
+
         // verify the required parameter 'batch_input_simple_public_object_batch_input' is set
         if ($batch_input_simple_public_object_batch_input === null || (is_array($batch_input_simple_public_object_batch_input) && count($batch_input_simple_public_object_batch_input) === 0)) {
             throw new \InvalidArgumentException(
@@ -1271,6 +1450,7 @@ public function updateRequest($batch_input_simple_public_object_batch_input)
             );
         }
 
+
         $resourcePath = '/crm/v3/objects/notes/batch/update';
         $formParams = [];
         $queryParams = [];
@@ -1282,21 +1462,17 @@ public function updateRequest($batch_input_simple_public_object_batch_input)
 
 
 
-        if ($multipart) {
-            $headers = $this->headerSelector->selectHeadersForMultipart(
-                ['application/json', '*/*']
-            );
-        } else {
-            $headers = $this->headerSelector->selectHeaders(
-                ['application/json', '*/*'],
-                ['application/json']
-            );
-        }
+        $headers = $this->headerSelector->selectHeaders(
+            ['application/json', '*/*', ],
+            $contentType,
+            $multipart
+        );
 
         // for model (json/xml)
         if (isset($batch_input_simple_public_object_batch_input)) {
-            if ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode(ObjectSerializer::sanitizeForSerialization($batch_input_simple_public_object_batch_input));
+            if (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the body
+                $httpBody = \GuzzleHttp\Utils::jsonEncode(ObjectSerializer::sanitizeForSerialization($batch_input_simple_public_object_batch_input));
             } else {
                 $httpBody = $batch_input_simple_public_object_batch_input;
             }
@@ -1315,9 +1491,9 @@ public function updateRequest($batch_input_simple_public_object_batch_input)
                 // for HTTP post (form)
                 $httpBody = new MultipartStream($multipartContents);
 
-            } elseif ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode($formParams);
-
+            } elseif (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the form parameters
+                $httpBody = \GuzzleHttp\Utils::jsonEncode($formParams);
             } else {
                 // for HTTP post (form)
                 $httpBody = ObjectSerializer::buildQuery($formParams);
@@ -1340,10 +1516,11 @@ public function updateRequest($batch_input_simple_public_object_batch_input)
             $headers
         );
 
+        $operationHost = $this->config->getHost();
         $query = ObjectSerializer::buildQuery($queryParams);
         return new Request(
             'POST',
-            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
+            $operationHost . $resourcePath . ($query ? "?{$query}" : ''),
             $headers,
             $httpBody
         );
diff --git a/codegen/Crm/Objects/Notes/Api/GDPRApi.php b/codegen/Crm/Objects/Notes/Api/GDPRApi.php
index fc9edb91..9d141a3b 100644
--- a/codegen/Crm/Objects/Notes/Api/GDPRApi.php
+++ b/codegen/Crm/Objects/Notes/Api/GDPRApi.php
@@ -16,7 +16,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -69,6 +69,13 @@ class GDPRApi
      */
     protected $hostIndex;
 
+    /** @var string[] $contentTypes **/
+    public const contentTypes = [
+        'purge' => [
+            'application/json',
+        ],
+    ];
+
     /**
      * @param ClientInterface $client
      * @param Configuration   $config
@@ -121,14 +128,15 @@ public function getConfig()
      * GDPR DELETE
      *
      * @param  \HubSpot\Client\Crm\Objects\Notes\Model\PublicGdprDeleteInput $public_gdpr_delete_input public_gdpr_delete_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['purge'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Notes\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Notes\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return void
      */
-    public function purge($public_gdpr_delete_input)
+    public function purge($public_gdpr_delete_input, string $contentType = self::contentTypes['purge'][0])
     {
-        $this->purgeWithHttpInfo($public_gdpr_delete_input);
+        $this->purgeWithHttpInfo($public_gdpr_delete_input, $contentType);
     }
 
     /**
@@ -137,14 +145,15 @@ public function purge($public_gdpr_delete_input)
      * GDPR DELETE
      *
      * @param  \HubSpot\Client\Crm\Objects\Notes\Model\PublicGdprDeleteInput $public_gdpr_delete_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['purge'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Notes\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Notes\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return array of null, HTTP status code, HTTP response headers (array of strings)
      */
-    public function purgeWithHttpInfo($public_gdpr_delete_input)
+    public function purgeWithHttpInfo($public_gdpr_delete_input, string $contentType = self::contentTypes['purge'][0])
     {
-        $request = $this->purgeRequest($public_gdpr_delete_input);
+        $request = $this->purgeRequest($public_gdpr_delete_input, $contentType);
 
         try {
             $options = $this->createHttpClientOption();
@@ -204,13 +213,14 @@ public function purgeWithHttpInfo($public_gdpr_delete_input)
      * GDPR DELETE
      *
      * @param  \HubSpot\Client\Crm\Objects\Notes\Model\PublicGdprDeleteInput $public_gdpr_delete_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['purge'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function purgeAsync($public_gdpr_delete_input)
+    public function purgeAsync($public_gdpr_delete_input, string $contentType = self::contentTypes['purge'][0])
     {
-        return $this->purgeAsyncWithHttpInfo($public_gdpr_delete_input)
+        return $this->purgeAsyncWithHttpInfo($public_gdpr_delete_input, $contentType)
             ->then(
                 function ($response) {
                     return $response[0];
@@ -224,14 +234,15 @@ function ($response) {
      * GDPR DELETE
      *
      * @param  \HubSpot\Client\Crm\Objects\Notes\Model\PublicGdprDeleteInput $public_gdpr_delete_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['purge'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function purgeAsyncWithHttpInfo($public_gdpr_delete_input)
+    public function purgeAsyncWithHttpInfo($public_gdpr_delete_input, string $contentType = self::contentTypes['purge'][0])
     {
         $returnType = '';
-        $request = $this->purgeRequest($public_gdpr_delete_input);
+        $request = $this->purgeRequest($public_gdpr_delete_input, $contentType);
 
         return $this->client
             ->sendAsync($request, $this->createHttpClientOption())
@@ -260,12 +271,14 @@ function ($exception) {
      * Create request for operation 'purge'
      *
      * @param  \HubSpot\Client\Crm\Objects\Notes\Model\PublicGdprDeleteInput $public_gdpr_delete_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['purge'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Psr7\Request
      */
-    public function purgeRequest($public_gdpr_delete_input)
+    public function purgeRequest($public_gdpr_delete_input, string $contentType = self::contentTypes['purge'][0])
     {
+
         // verify the required parameter 'public_gdpr_delete_input' is set
         if ($public_gdpr_delete_input === null || (is_array($public_gdpr_delete_input) && count($public_gdpr_delete_input) === 0)) {
             throw new \InvalidArgumentException(
@@ -273,6 +286,7 @@ public function purgeRequest($public_gdpr_delete_input)
             );
         }
 
+
         $resourcePath = '/crm/v3/objects/notes/gdpr-delete';
         $formParams = [];
         $queryParams = [];
@@ -284,21 +298,17 @@ public function purgeRequest($public_gdpr_delete_input)
 
 
 
-        if ($multipart) {
-            $headers = $this->headerSelector->selectHeadersForMultipart(
-                ['*/*']
-            );
-        } else {
-            $headers = $this->headerSelector->selectHeaders(
-                ['*/*'],
-                ['application/json']
-            );
-        }
+        $headers = $this->headerSelector->selectHeaders(
+            ['*/*', ],
+            $contentType,
+            $multipart
+        );
 
         // for model (json/xml)
         if (isset($public_gdpr_delete_input)) {
-            if ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode(ObjectSerializer::sanitizeForSerialization($public_gdpr_delete_input));
+            if (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the body
+                $httpBody = \GuzzleHttp\Utils::jsonEncode(ObjectSerializer::sanitizeForSerialization($public_gdpr_delete_input));
             } else {
                 $httpBody = $public_gdpr_delete_input;
             }
@@ -317,9 +327,9 @@ public function purgeRequest($public_gdpr_delete_input)
                 // for HTTP post (form)
                 $httpBody = new MultipartStream($multipartContents);
 
-            } elseif ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode($formParams);
-
+            } elseif (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the form parameters
+                $httpBody = \GuzzleHttp\Utils::jsonEncode($formParams);
             } else {
                 // for HTTP post (form)
                 $httpBody = ObjectSerializer::buildQuery($formParams);
@@ -342,10 +352,11 @@ public function purgeRequest($public_gdpr_delete_input)
             $headers
         );
 
+        $operationHost = $this->config->getHost();
         $query = ObjectSerializer::buildQuery($queryParams);
         return new Request(
             'POST',
-            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
+            $operationHost . $resourcePath . ($query ? "?{$query}" : ''),
             $headers,
             $httpBody
         );
diff --git a/codegen/Crm/Objects/Notes/Api/PublicObjectApi.php b/codegen/Crm/Objects/Notes/Api/PublicObjectApi.php
index d028a3d2..1d79421f 100644
--- a/codegen/Crm/Objects/Notes/Api/PublicObjectApi.php
+++ b/codegen/Crm/Objects/Notes/Api/PublicObjectApi.php
@@ -16,7 +16,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -69,6 +69,13 @@ class PublicObjectApi
      */
     protected $hostIndex;
 
+    /** @var string[] $contentTypes **/
+    public const contentTypes = [
+        'merge' => [
+            'application/json',
+        ],
+    ];
+
     /**
      * @param ClientInterface $client
      * @param Configuration   $config
@@ -121,14 +128,15 @@ public function getConfig()
      * Merge two notes with same type
      *
      * @param  \HubSpot\Client\Crm\Objects\Notes\Model\PublicMergeInput $public_merge_input public_merge_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['merge'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Notes\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Notes\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return \HubSpot\Client\Crm\Objects\Notes\Model\SimplePublicObject|\HubSpot\Client\Crm\Objects\Notes\Model\Error
      */
-    public function merge($public_merge_input)
+    public function merge($public_merge_input, string $contentType = self::contentTypes['merge'][0])
     {
-        list($response) = $this->mergeWithHttpInfo($public_merge_input);
+        list($response) = $this->mergeWithHttpInfo($public_merge_input, $contentType);
         return $response;
     }
 
@@ -138,14 +146,15 @@ public function merge($public_merge_input)
      * Merge two notes with same type
      *
      * @param  \HubSpot\Client\Crm\Objects\Notes\Model\PublicMergeInput $public_merge_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['merge'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Notes\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Notes\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return array of \HubSpot\Client\Crm\Objects\Notes\Model\SimplePublicObject|\HubSpot\Client\Crm\Objects\Notes\Model\Error, HTTP status code, HTTP response headers (array of strings)
      */
-    public function mergeWithHttpInfo($public_merge_input)
+    public function mergeWithHttpInfo($public_merge_input, string $contentType = self::contentTypes['merge'][0])
     {
-        $request = $this->mergeRequest($public_merge_input);
+        $request = $this->mergeRequest($public_merge_input, $contentType);
 
         try {
             $options = $this->createHttpClientOption();
@@ -189,7 +198,19 @@ public function mergeWithHttpInfo($public_merge_input)
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Notes\Model\SimplePublicObject' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -204,7 +225,19 @@ public function mergeWithHttpInfo($public_merge_input)
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Notes\Model\Error' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -221,7 +254,19 @@ public function mergeWithHttpInfo($public_merge_input)
             } else {
                 $content = (string) $response->getBody();
                 if ($returnType !== 'string') {
-                    $content = json_decode($content);
+                    try {
+                        $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                    } catch (\JsonException $exception) {
+                        throw new ApiException(
+                            sprintf(
+                                'Error JSON decoding server response (%s)',
+                                $request->getUri()
+                            ),
+                            $statusCode,
+                            $response->getHeaders(),
+                            $content
+                        );
+                    }
                 }
             }
 
@@ -260,13 +305,14 @@ public function mergeWithHttpInfo($public_merge_input)
      * Merge two notes with same type
      *
      * @param  \HubSpot\Client\Crm\Objects\Notes\Model\PublicMergeInput $public_merge_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['merge'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function mergeAsync($public_merge_input)
+    public function mergeAsync($public_merge_input, string $contentType = self::contentTypes['merge'][0])
     {
-        return $this->mergeAsyncWithHttpInfo($public_merge_input)
+        return $this->mergeAsyncWithHttpInfo($public_merge_input, $contentType)
             ->then(
                 function ($response) {
                     return $response[0];
@@ -280,14 +326,15 @@ function ($response) {
      * Merge two notes with same type
      *
      * @param  \HubSpot\Client\Crm\Objects\Notes\Model\PublicMergeInput $public_merge_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['merge'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function mergeAsyncWithHttpInfo($public_merge_input)
+    public function mergeAsyncWithHttpInfo($public_merge_input, string $contentType = self::contentTypes['merge'][0])
     {
         $returnType = '\HubSpot\Client\Crm\Objects\Notes\Model\SimplePublicObject';
-        $request = $this->mergeRequest($public_merge_input);
+        $request = $this->mergeRequest($public_merge_input, $contentType);
 
         return $this->client
             ->sendAsync($request, $this->createHttpClientOption())
@@ -329,12 +376,14 @@ function ($exception) {
      * Create request for operation 'merge'
      *
      * @param  \HubSpot\Client\Crm\Objects\Notes\Model\PublicMergeInput $public_merge_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['merge'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Psr7\Request
      */
-    public function mergeRequest($public_merge_input)
+    public function mergeRequest($public_merge_input, string $contentType = self::contentTypes['merge'][0])
     {
+
         // verify the required parameter 'public_merge_input' is set
         if ($public_merge_input === null || (is_array($public_merge_input) && count($public_merge_input) === 0)) {
             throw new \InvalidArgumentException(
@@ -342,6 +391,7 @@ public function mergeRequest($public_merge_input)
             );
         }
 
+
         $resourcePath = '/crm/v3/objects/notes/merge';
         $formParams = [];
         $queryParams = [];
@@ -353,21 +403,17 @@ public function mergeRequest($public_merge_input)
 
 
 
-        if ($multipart) {
-            $headers = $this->headerSelector->selectHeadersForMultipart(
-                ['application/json', '*/*']
-            );
-        } else {
-            $headers = $this->headerSelector->selectHeaders(
-                ['application/json', '*/*'],
-                ['application/json']
-            );
-        }
+        $headers = $this->headerSelector->selectHeaders(
+            ['application/json', '*/*', ],
+            $contentType,
+            $multipart
+        );
 
         // for model (json/xml)
         if (isset($public_merge_input)) {
-            if ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode(ObjectSerializer::sanitizeForSerialization($public_merge_input));
+            if (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the body
+                $httpBody = \GuzzleHttp\Utils::jsonEncode(ObjectSerializer::sanitizeForSerialization($public_merge_input));
             } else {
                 $httpBody = $public_merge_input;
             }
@@ -386,9 +432,9 @@ public function mergeRequest($public_merge_input)
                 // for HTTP post (form)
                 $httpBody = new MultipartStream($multipartContents);
 
-            } elseif ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode($formParams);
-
+            } elseif (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the form parameters
+                $httpBody = \GuzzleHttp\Utils::jsonEncode($formParams);
             } else {
                 // for HTTP post (form)
                 $httpBody = ObjectSerializer::buildQuery($formParams);
@@ -411,10 +457,11 @@ public function mergeRequest($public_merge_input)
             $headers
         );
 
+        $operationHost = $this->config->getHost();
         $query = ObjectSerializer::buildQuery($queryParams);
         return new Request(
             'POST',
-            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
+            $operationHost . $resourcePath . ($query ? "?{$query}" : ''),
             $headers,
             $httpBody
         );
diff --git a/codegen/Crm/Objects/Notes/Api/SearchApi.php b/codegen/Crm/Objects/Notes/Api/SearchApi.php
index 64346286..eeab284d 100644
--- a/codegen/Crm/Objects/Notes/Api/SearchApi.php
+++ b/codegen/Crm/Objects/Notes/Api/SearchApi.php
@@ -16,7 +16,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -69,6 +69,13 @@ class SearchApi
      */
     protected $hostIndex;
 
+    /** @var string[] $contentTypes **/
+    public const contentTypes = [
+        'doSearch' => [
+            'application/json',
+        ],
+    ];
+
     /**
      * @param ClientInterface $client
      * @param Configuration   $config
@@ -119,14 +126,15 @@ public function getConfig()
      * Operation doSearch
      *
      * @param  \HubSpot\Client\Crm\Objects\Notes\Model\PublicObjectSearchRequest $public_object_search_request public_object_search_request (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['doSearch'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Notes\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Notes\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return \HubSpot\Client\Crm\Objects\Notes\Model\CollectionResponseWithTotalSimplePublicObjectForwardPaging|\HubSpot\Client\Crm\Objects\Notes\Model\Error
      */
-    public function doSearch($public_object_search_request)
+    public function doSearch($public_object_search_request, string $contentType = self::contentTypes['doSearch'][0])
     {
-        list($response) = $this->doSearchWithHttpInfo($public_object_search_request);
+        list($response) = $this->doSearchWithHttpInfo($public_object_search_request, $contentType);
         return $response;
     }
 
@@ -134,14 +142,15 @@ public function doSearch($public_object_search_request)
      * Operation doSearchWithHttpInfo
      *
      * @param  \HubSpot\Client\Crm\Objects\Notes\Model\PublicObjectSearchRequest $public_object_search_request (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['doSearch'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Notes\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Notes\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return array of \HubSpot\Client\Crm\Objects\Notes\Model\CollectionResponseWithTotalSimplePublicObjectForwardPaging|\HubSpot\Client\Crm\Objects\Notes\Model\Error, HTTP status code, HTTP response headers (array of strings)
      */
-    public function doSearchWithHttpInfo($public_object_search_request)
+    public function doSearchWithHttpInfo($public_object_search_request, string $contentType = self::contentTypes['doSearch'][0])
     {
-        $request = $this->doSearchRequest($public_object_search_request);
+        $request = $this->doSearchRequest($public_object_search_request, $contentType);
 
         try {
             $options = $this->createHttpClientOption();
@@ -185,7 +194,19 @@ public function doSearchWithHttpInfo($public_object_search_request)
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Notes\Model\CollectionResponseWithTotalSimplePublicObjectForwardPaging' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -200,7 +221,19 @@ public function doSearchWithHttpInfo($public_object_search_request)
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Notes\Model\Error' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -217,7 +250,19 @@ public function doSearchWithHttpInfo($public_object_search_request)
             } else {
                 $content = (string) $response->getBody();
                 if ($returnType !== 'string') {
-                    $content = json_decode($content);
+                    try {
+                        $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                    } catch (\JsonException $exception) {
+                        throw new ApiException(
+                            sprintf(
+                                'Error JSON decoding server response (%s)',
+                                $request->getUri()
+                            ),
+                            $statusCode,
+                            $response->getHeaders(),
+                            $content
+                        );
+                    }
                 }
             }
 
@@ -254,13 +299,14 @@ public function doSearchWithHttpInfo($public_object_search_request)
      * Operation doSearchAsync
      *
      * @param  \HubSpot\Client\Crm\Objects\Notes\Model\PublicObjectSearchRequest $public_object_search_request (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['doSearch'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function doSearchAsync($public_object_search_request)
+    public function doSearchAsync($public_object_search_request, string $contentType = self::contentTypes['doSearch'][0])
     {
-        return $this->doSearchAsyncWithHttpInfo($public_object_search_request)
+        return $this->doSearchAsyncWithHttpInfo($public_object_search_request, $contentType)
             ->then(
                 function ($response) {
                     return $response[0];
@@ -272,14 +318,15 @@ function ($response) {
      * Operation doSearchAsyncWithHttpInfo
      *
      * @param  \HubSpot\Client\Crm\Objects\Notes\Model\PublicObjectSearchRequest $public_object_search_request (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['doSearch'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function doSearchAsyncWithHttpInfo($public_object_search_request)
+    public function doSearchAsyncWithHttpInfo($public_object_search_request, string $contentType = self::contentTypes['doSearch'][0])
     {
         $returnType = '\HubSpot\Client\Crm\Objects\Notes\Model\CollectionResponseWithTotalSimplePublicObjectForwardPaging';
-        $request = $this->doSearchRequest($public_object_search_request);
+        $request = $this->doSearchRequest($public_object_search_request, $contentType);
 
         return $this->client
             ->sendAsync($request, $this->createHttpClientOption())
@@ -321,12 +368,14 @@ function ($exception) {
      * Create request for operation 'doSearch'
      *
      * @param  \HubSpot\Client\Crm\Objects\Notes\Model\PublicObjectSearchRequest $public_object_search_request (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['doSearch'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Psr7\Request
      */
-    public function doSearchRequest($public_object_search_request)
+    public function doSearchRequest($public_object_search_request, string $contentType = self::contentTypes['doSearch'][0])
     {
+
         // verify the required parameter 'public_object_search_request' is set
         if ($public_object_search_request === null || (is_array($public_object_search_request) && count($public_object_search_request) === 0)) {
             throw new \InvalidArgumentException(
@@ -334,6 +383,7 @@ public function doSearchRequest($public_object_search_request)
             );
         }
 
+
         $resourcePath = '/crm/v3/objects/notes/search';
         $formParams = [];
         $queryParams = [];
@@ -345,21 +395,17 @@ public function doSearchRequest($public_object_search_request)
 
 
 
-        if ($multipart) {
-            $headers = $this->headerSelector->selectHeadersForMultipart(
-                ['application/json', '*/*']
-            );
-        } else {
-            $headers = $this->headerSelector->selectHeaders(
-                ['application/json', '*/*'],
-                ['application/json']
-            );
-        }
+        $headers = $this->headerSelector->selectHeaders(
+            ['application/json', '*/*', ],
+            $contentType,
+            $multipart
+        );
 
         // for model (json/xml)
         if (isset($public_object_search_request)) {
-            if ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode(ObjectSerializer::sanitizeForSerialization($public_object_search_request));
+            if (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the body
+                $httpBody = \GuzzleHttp\Utils::jsonEncode(ObjectSerializer::sanitizeForSerialization($public_object_search_request));
             } else {
                 $httpBody = $public_object_search_request;
             }
@@ -378,9 +424,9 @@ public function doSearchRequest($public_object_search_request)
                 // for HTTP post (form)
                 $httpBody = new MultipartStream($multipartContents);
 
-            } elseif ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode($formParams);
-
+            } elseif (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the form parameters
+                $httpBody = \GuzzleHttp\Utils::jsonEncode($formParams);
             } else {
                 // for HTTP post (form)
                 $httpBody = ObjectSerializer::buildQuery($formParams);
@@ -403,10 +449,11 @@ public function doSearchRequest($public_object_search_request)
             $headers
         );
 
+        $operationHost = $this->config->getHost();
         $query = ObjectSerializer::buildQuery($queryParams);
         return new Request(
             'POST',
-            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
+            $operationHost . $resourcePath . ($query ? "?{$query}" : ''),
             $headers,
             $httpBody
         );
diff --git a/codegen/Crm/Objects/Notes/ApiException.php b/codegen/Crm/Objects/Notes/ApiException.php
index 1b6cd05c..bb51660b 100644
--- a/codegen/Crm/Objects/Notes/ApiException.php
+++ b/codegen/Crm/Objects/Notes/ApiException.php
@@ -16,7 +16,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
diff --git a/codegen/Crm/Objects/Notes/Configuration.php b/codegen/Crm/Objects/Notes/Configuration.php
index edfef917..04b219e6 100644
--- a/codegen/Crm/Objects/Notes/Configuration.php
+++ b/codegen/Crm/Objects/Notes/Configuration.php
@@ -16,7 +16,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -209,7 +209,7 @@ public function getAccessToken()
     /**
      * Sets boolean format for query string.
      *
-     * @param string $booleanFormatForQueryString Boolean format for query string
+     * @param string $booleanFormat Boolean format for query string
      *
      * @return $this
      */
@@ -479,32 +479,31 @@ public function getHostSettings()
     }
 
     /**
-     * Returns URL based on the index and variables
-     *
-     * @param int        $index     index of the host settings
-     * @param array|null $variables hash of variable and the corresponding value (optional)
-     * @return string URL based on host settings
-     */
-    public function getHostFromSettings($index, $variables = null)
+    * Returns URL based on host settings, index and variables
+    *
+    * @param array      $hostSettings array of host settings, generated from getHostSettings() or equivalent from the API clients
+    * @param int        $hostIndex    index of the host settings
+    * @param array|null $variables    hash of variable and the corresponding value (optional)
+    * @return string URL based on host settings
+    */
+    public static function getHostString(array $hostSettings, $hostIndex, array $variables = null)
     {
         if (null === $variables) {
             $variables = [];
         }
 
-        $hosts = $this->getHostSettings();
-
         // check array index out of bound
-        if ($index < 0 || $index >= sizeof($hosts)) {
-            throw new \InvalidArgumentException("Invalid index $index when selecting the host. Must be less than ".sizeof($hosts));
+        if ($hostIndex < 0 || $hostIndex >= count($hostSettings)) {
+            throw new \InvalidArgumentException("Invalid index $hostIndex when selecting the host. Must be less than ".count($hostSettings));
         }
 
-        $host = $hosts[$index];
+        $host = $hostSettings[$hostIndex];
         $url = $host["url"];
 
         // go through variable and assign a value
         foreach ($host["variables"] ?? [] as $name => $variable) {
             if (array_key_exists($name, $variables)) { // check to see if it's in the variables provided by the user
-                if (in_array($variables[$name], $variable["enum_values"], true)) { // check to see if the value is in the enum
+                if (!isset($variable['enum_values']) || in_array($variables[$name], $variable["enum_values"], true)) { // check to see if the value is in the enum
                     $url = str_replace("{".$name."}", $variables[$name], $url);
                 } else {
                     throw new \InvalidArgumentException("The variable `$name` in the host URL has invalid value ".$variables[$name].". Must be ".join(',', $variable["enum_values"]).".");
@@ -517,4 +516,16 @@ public function getHostFromSettings($index, $variables = null)
 
         return $url;
     }
+
+    /**
+     * Returns URL based on the index and variables
+     *
+     * @param int        $index     index of the host settings
+     * @param array|null $variables hash of variable and the corresponding value (optional)
+     * @return string URL based on host settings
+     */
+    public function getHostFromSettings($index, $variables = null)
+    {
+        return self::getHostString($this->getHostSettings(), $index, $variables);
+    }
 }
diff --git a/codegen/Crm/Objects/Notes/HeaderSelector.php b/codegen/Crm/Objects/Notes/HeaderSelector.php
index cefde3d3..52af1b7e 100644
--- a/codegen/Crm/Objects/Notes/HeaderSelector.php
+++ b/codegen/Crm/Objects/Notes/HeaderSelector.php
@@ -1,6 +1,6 @@
 <?php
 /**
- * ApiException
+ * HeaderSelector
  * PHP version 7.4
  *
  * @category Class
@@ -16,7 +16,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -27,10 +27,8 @@
 
 namespace HubSpot\Client\Crm\Objects\Notes;
 
-use \Exception;
-
 /**
- * ApiException Class Doc Comment
+ * HeaderSelector Class Doc Comment
  *
  * @category Class
  * @package  HubSpot\Client\Crm\Objects\Notes
@@ -41,10 +39,11 @@ class HeaderSelector
 {
     /**
      * @param string[] $accept
-     * @param string[] $contentTypes
-     * @return array
+     * @param string   $contentType
+     * @param bool     $isMultipart
+     * @return string[]
      */
-    public function selectHeaders($accept, $contentTypes)
+    public function selectHeaders(array $accept, string $contentType, bool $isMultipart): array
     {
         $headers = [];
 
@@ -53,55 +52,194 @@ public function selectHeaders($accept, $contentTypes)
             $headers['Accept'] = $accept;
         }
 
-        $headers['Content-Type'] = $this->selectContentTypeHeader($contentTypes);
-        return $headers;
-    }
+        if (!$isMultipart) {
+            if($contentType === '') {
+                $contentType = 'application/json';
+            }
 
-    /**
-     * @param string[] $accept
-     * @return array
-     */
-    public function selectHeadersForMultipart($accept)
-    {
-        $headers = $this->selectHeaders($accept, []);
+            $headers['Content-Type'] = $contentType;
+        }
 
-        unset($headers['Content-Type']);
         return $headers;
     }
 
     /**
-     * Return the header 'Accept' based on an array of Accept provided
+     * Return the header 'Accept' based on an array of Accept provided.
      *
      * @param string[] $accept Array of header
      *
      * @return null|string Accept (e.g. application/json)
      */
-    private function selectAcceptHeader($accept)
+    private function selectAcceptHeader(array $accept): ?string
     {
-        if (count($accept) === 0 || (count($accept) === 1 && $accept[0] === '')) {
+        # filter out empty entries
+        $accept = array_filter($accept);
+
+        if (count($accept) === 0) {
             return null;
-        } elseif ($jsonAccept = preg_grep('~(?i)^(application/json|[^;/ \t]+/[^;/ \t]+[+]json)[ \t]*(;.*)?$~', $accept)) {
-            return implode(',', $jsonAccept);
-        } else {
+        }
+
+        # If there's only one Accept header, just use it
+        if (count($accept) === 1) {
+            return reset($accept);
+        }
+
+        # If none of the available Accept headers is of type "json", then just use all them
+        $headersWithJson = preg_grep('~(?i)^(application/json|[^;/ \t]+/[^;/ \t]+[+]json)[ \t]*(;.*)?$~', $accept);
+        if (count($headersWithJson) === 0) {
             return implode(',', $accept);
         }
+
+        # If we got here, then we need add quality values (weight), as described in IETF RFC 9110, Items 12.4.2/12.5.1,
+        # to give the highest priority to json-like headers - recalculating the existing ones, if needed
+        return $this->getAcceptHeaderWithAdjustedWeight($accept, $headersWithJson);
+    }
+
+    /**
+    * Create an Accept header string from the given "Accept" headers array, recalculating all weights
+    *
+    * @param string[] $accept            Array of Accept Headers
+    * @param string[] $headersWithJson   Array of Accept Headers of type "json"
+    *
+    * @return string "Accept" Header (e.g. "application/json, text/html; q=0.9")
+    */
+    private function getAcceptHeaderWithAdjustedWeight(array $accept, array $headersWithJson): string
+    {
+        $processedHeaders = [
+            'withApplicationJson' => [],
+            'withJson' => [],
+            'withoutJson' => [],
+        ];
+
+        foreach ($accept as $header) {
+
+            $headerData = $this->getHeaderAndWeight($header);
+
+            if (stripos($headerData['header'], 'application/json') === 0) {
+                $processedHeaders['withApplicationJson'][] = $headerData;
+            } elseif (in_array($header, $headersWithJson, true)) {
+                $processedHeaders['withJson'][] = $headerData;
+            } else {
+                $processedHeaders['withoutJson'][] = $headerData;
+            }
+        }
+
+        $acceptHeaders = [];
+        $currentWeight = 1000;
+
+        $hasMoreThan28Headers = count($accept) > 28;
+
+        foreach($processedHeaders as $headers) {
+            if (count($headers) > 0) {
+                $acceptHeaders[] = $this->adjustWeight($headers, $currentWeight, $hasMoreThan28Headers);
+            }
+        }
+
+        $acceptHeaders = array_merge(...$acceptHeaders);
+
+        return implode(',', $acceptHeaders);
     }
 
     /**
-     * Return the content type based on an array of content-type provided
+     * Given an Accept header, returns an associative array splitting the header and its weight
      *
-     * @param string[] $contentType Array fo content-type
+     * @param string $header "Accept" Header
      *
-     * @return string Content-Type (e.g. application/json)
+     * @return array with the header and its weight
      */
-    private function selectContentTypeHeader($contentType)
+    private function getHeaderAndWeight(string $header): array
     {
-        if (count($contentType) === 0 || (count($contentType) === 1 && $contentType[0] === '')) {
-            return 'application/json';
-        } elseif (preg_grep("/application\/json/i", $contentType)) {
-            return 'application/json';
+        # matches headers with weight, splitting the header and the weight in $outputArray
+        if (preg_match('/(.*);\s*q=(1(?:\.0+)?|0\.\d+)$/', $header, $outputArray) === 1) {
+            $headerData = [
+                'header' => $outputArray[1],
+                'weight' => (int)($outputArray[2] * 1000),
+            ];
         } else {
-            return implode(',', $contentType);
+            $headerData = [
+                'header' => trim($header),
+                'weight' => 1000,
+            ];
+        }
+
+        return $headerData;
+    }
+
+    /**
+     * @param array[] $headers
+     * @param float   $currentWeight
+     * @param bool    $hasMoreThan28Headers
+     * @return string[] array of adjusted "Accept" headers
+     */
+    private function adjustWeight(array $headers, float &$currentWeight, bool $hasMoreThan28Headers): array
+    {
+        usort($headers, function (array $a, array $b) {
+            return $b['weight'] - $a['weight'];
+        });
+
+        $acceptHeaders = [];
+        foreach ($headers as $index => $header) {
+            if($index > 0 && $headers[$index - 1]['weight'] > $header['weight'])
+            {
+                $currentWeight = $this->getNextWeight($currentWeight, $hasMoreThan28Headers);
+            }
+
+            $weight = $currentWeight;
+
+            $acceptHeaders[] = $this->buildAcceptHeader($header['header'], $weight);
+        }
+
+        $currentWeight = $this->getNextWeight($currentWeight, $hasMoreThan28Headers);
+
+        return $acceptHeaders;
+    }
+
+    /**
+     * @param string $header
+     * @param int    $weight
+     * @return string
+     */
+    private function buildAcceptHeader(string $header, int $weight): string
+    {
+        if($weight === 1000) {
+            return $header;
+        }
+
+        return trim($header, '; ') . ';q=' . rtrim(sprintf('%0.3f', $weight / 1000), '0');
+    }
+
+    /**
+     * Calculate the next weight, based on the current one.
+     *
+     * If there are less than 28 "Accept" headers, the weights will be decreased by 1 on its highest significant digit, using the
+     * following formula:
+     *
+     *    next weight = current weight - 10 ^ (floor(log(current weight - 1)))
+     *
+     *    ( current weight minus ( 10 raised to the power of ( floor of (log to the base 10 of ( current weight minus 1 ) ) ) ) )
+     *
+     * Starting from 1000, this generates the following series:
+     *
+     * 1000, 900, 800, 700, 600, 500, 400, 300, 200, 100, 90, 80, 70, 60, 50, 40, 30, 20, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1
+     *
+     * The resulting quality codes are closer to the average "normal" usage of them (like "q=0.9", "q=0.8" and so on), but it only works
+     * if there is a maximum of 28 "Accept" headers. If we have more than that (which is extremely unlikely), then we fall back to a 1-by-1
+     * decrement rule, which will result in quality codes like "q=0.999", "q=0.998" etc.
+     *
+     * @param int  $currentWeight varying from 1 to 1000 (will be divided by 1000 to build the quality value)
+     * @param bool $hasMoreThan28Headers
+     * @return int
+     */
+    public function getNextWeight(int $currentWeight, bool $hasMoreThan28Headers): int
+    {
+        if ($currentWeight <= 1) {
+            return 1;
+        }
+
+        if ($hasMoreThan28Headers) {
+            return $currentWeight - 1;
         }
+
+        return $currentWeight - 10 ** floor( log10($currentWeight - 1) );
     }
 }
diff --git a/codegen/Crm/Objects/Notes/Model/AssociatedId.php b/codegen/Crm/Objects/Notes/Model/AssociatedId.php
index 3bc438cc..d79ce0c2 100644
--- a/codegen/Crm/Objects/Notes/Model/AssociatedId.php
+++ b/codegen/Crm/Objects/Notes/Model/AssociatedId.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -73,6 +73,23 @@ class AssociatedId implements ModelInterface, ArrayAccess, \JsonSerializable
         'type' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'id' => false,
+        'type' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -93,6 +110,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -181,8 +250,26 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['id'] = $data['id'] ?? null;
-        $this->container['type'] = $data['type'] ?? null;
+        $this->setIfExists('id', $data ?? [], null);
+        $this->setIfExists('type', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -234,6 +321,9 @@ public function getId()
      */
     public function setId($id)
     {
+        if (is_null($id)) {
+            throw new \InvalidArgumentException('non-nullable id cannot be null');
+        }
         $this->container['id'] = $id;
 
         return $this;
@@ -258,6 +348,9 @@ public function getType()
      */
     public function setType($type)
     {
+        if (is_null($type)) {
+            throw new \InvalidArgumentException('non-nullable type cannot be null');
+        }
         $this->container['type'] = $type;
 
         return $this;
diff --git a/codegen/Crm/Objects/Notes/Model/AssociationSpec.php b/codegen/Crm/Objects/Notes/Model/AssociationSpec.php
index 42543e84..5e1629ac 100644
--- a/codegen/Crm/Objects/Notes/Model/AssociationSpec.php
+++ b/codegen/Crm/Objects/Notes/Model/AssociationSpec.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -73,6 +73,23 @@ class AssociationSpec implements ModelInterface, ArrayAccess, \JsonSerializable
         'association_type_id' => 'int32'
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'association_category' => false,
+        'association_type_id' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -93,6 +110,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -198,8 +267,26 @@ public function getAssociationCategoryAllowableValues()
      */
     public function __construct(array $data = null)
     {
-        $this->container['association_category'] = $data['association_category'] ?? null;
-        $this->container['association_type_id'] = $data['association_type_id'] ?? null;
+        $this->setIfExists('association_category', $data ?? [], null);
+        $this->setIfExists('association_type_id', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -260,6 +347,9 @@ public function getAssociationCategory()
      */
     public function setAssociationCategory($association_category)
     {
+        if (is_null($association_category)) {
+            throw new \InvalidArgumentException('non-nullable association_category cannot be null');
+        }
         $allowedValues = $this->getAssociationCategoryAllowableValues();
         if (!in_array($association_category, $allowedValues, true)) {
             throw new \InvalidArgumentException(
@@ -294,6 +384,9 @@ public function getAssociationTypeId()
      */
     public function setAssociationTypeId($association_type_id)
     {
+        if (is_null($association_type_id)) {
+            throw new \InvalidArgumentException('non-nullable association_type_id cannot be null');
+        }
         $this->container['association_type_id'] = $association_type_id;
 
         return $this;
diff --git a/codegen/Crm/Objects/Notes/Model/BatchInputSimplePublicObjectBatchInput.php b/codegen/Crm/Objects/Notes/Model/BatchInputSimplePublicObjectBatchInput.php
index b6fd7e9c..514c1572 100644
--- a/codegen/Crm/Objects/Notes/Model/BatchInputSimplePublicObjectBatchInput.php
+++ b/codegen/Crm/Objects/Notes/Model/BatchInputSimplePublicObjectBatchInput.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -71,6 +71,22 @@ class BatchInputSimplePublicObjectBatchInput implements ModelInterface, ArrayAcc
         'inputs' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'inputs' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -91,6 +107,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -176,7 +244,25 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['inputs'] = $data['inputs'] ?? null;
+        $this->setIfExists('inputs', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -225,6 +311,9 @@ public function getInputs()
      */
     public function setInputs($inputs)
     {
+        if (is_null($inputs)) {
+            throw new \InvalidArgumentException('non-nullable inputs cannot be null');
+        }
         $this->container['inputs'] = $inputs;
 
         return $this;
diff --git a/codegen/Crm/Objects/Notes/Model/BatchInputSimplePublicObjectId.php b/codegen/Crm/Objects/Notes/Model/BatchInputSimplePublicObjectId.php
index 86783517..dcb1395a 100644
--- a/codegen/Crm/Objects/Notes/Model/BatchInputSimplePublicObjectId.php
+++ b/codegen/Crm/Objects/Notes/Model/BatchInputSimplePublicObjectId.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -71,6 +71,22 @@ class BatchInputSimplePublicObjectId implements ModelInterface, ArrayAccess, \Js
         'inputs' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'inputs' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -91,6 +107,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -176,7 +244,25 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['inputs'] = $data['inputs'] ?? null;
+        $this->setIfExists('inputs', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -225,6 +311,9 @@ public function getInputs()
      */
     public function setInputs($inputs)
     {
+        if (is_null($inputs)) {
+            throw new \InvalidArgumentException('non-nullable inputs cannot be null');
+        }
         $this->container['inputs'] = $inputs;
 
         return $this;
diff --git a/codegen/Crm/Objects/Notes/Model/BatchInputSimplePublicObjectInputForCreate.php b/codegen/Crm/Objects/Notes/Model/BatchInputSimplePublicObjectInputForCreate.php
index 48fce6f3..d949b7dd 100644
--- a/codegen/Crm/Objects/Notes/Model/BatchInputSimplePublicObjectInputForCreate.php
+++ b/codegen/Crm/Objects/Notes/Model/BatchInputSimplePublicObjectInputForCreate.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -71,6 +71,22 @@ class BatchInputSimplePublicObjectInputForCreate implements ModelInterface, Arra
         'inputs' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'inputs' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -91,6 +107,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -176,7 +244,25 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['inputs'] = $data['inputs'] ?? null;
+        $this->setIfExists('inputs', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -225,6 +311,9 @@ public function getInputs()
      */
     public function setInputs($inputs)
     {
+        if (is_null($inputs)) {
+            throw new \InvalidArgumentException('non-nullable inputs cannot be null');
+        }
         $this->container['inputs'] = $inputs;
 
         return $this;
diff --git a/codegen/Crm/Objects/Notes/Model/BatchReadInputSimplePublicObjectId.php b/codegen/Crm/Objects/Notes/Model/BatchReadInputSimplePublicObjectId.php
index c0e5a5d4..6f2c1e37 100644
--- a/codegen/Crm/Objects/Notes/Model/BatchReadInputSimplePublicObjectId.php
+++ b/codegen/Crm/Objects/Notes/Model/BatchReadInputSimplePublicObjectId.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -77,6 +77,25 @@ class BatchReadInputSimplePublicObjectId implements ModelInterface, ArrayAccess,
         'properties' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'properties_with_history' => false,
+        'id_property' => false,
+        'inputs' => false,
+        'properties' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -97,6 +116,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -191,10 +262,28 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['properties_with_history'] = $data['properties_with_history'] ?? null;
-        $this->container['id_property'] = $data['id_property'] ?? null;
-        $this->container['inputs'] = $data['inputs'] ?? null;
-        $this->container['properties'] = $data['properties'] ?? null;
+        $this->setIfExists('properties_with_history', $data ?? [], null);
+        $this->setIfExists('id_property', $data ?? [], null);
+        $this->setIfExists('inputs', $data ?? [], null);
+        $this->setIfExists('properties', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -249,6 +338,9 @@ public function getPropertiesWithHistory()
      */
     public function setPropertiesWithHistory($properties_with_history)
     {
+        if (is_null($properties_with_history)) {
+            throw new \InvalidArgumentException('non-nullable properties_with_history cannot be null');
+        }
         $this->container['properties_with_history'] = $properties_with_history;
 
         return $this;
@@ -273,6 +365,9 @@ public function getIdProperty()
      */
     public function setIdProperty($id_property)
     {
+        if (is_null($id_property)) {
+            throw new \InvalidArgumentException('non-nullable id_property cannot be null');
+        }
         $this->container['id_property'] = $id_property;
 
         return $this;
@@ -297,6 +392,9 @@ public function getInputs()
      */
     public function setInputs($inputs)
     {
+        if (is_null($inputs)) {
+            throw new \InvalidArgumentException('non-nullable inputs cannot be null');
+        }
         $this->container['inputs'] = $inputs;
 
         return $this;
@@ -321,6 +419,9 @@ public function getProperties()
      */
     public function setProperties($properties)
     {
+        if (is_null($properties)) {
+            throw new \InvalidArgumentException('non-nullable properties cannot be null');
+        }
         $this->container['properties'] = $properties;
 
         return $this;
diff --git a/codegen/Crm/Objects/Notes/Model/BatchResponseSimplePublicObject.php b/codegen/Crm/Objects/Notes/Model/BatchResponseSimplePublicObject.php
index 4c96d12b..a3f99985 100644
--- a/codegen/Crm/Objects/Notes/Model/BatchResponseSimplePublicObject.php
+++ b/codegen/Crm/Objects/Notes/Model/BatchResponseSimplePublicObject.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -81,6 +81,27 @@ class BatchResponseSimplePublicObject implements ModelInterface, ArrayAccess, \J
         'status' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'completed_at' => false,
+        'requested_at' => false,
+        'started_at' => false,
+        'links' => false,
+        'results' => false,
+        'status' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -101,6 +122,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -220,12 +293,30 @@ public function getStatusAllowableValues()
      */
     public function __construct(array $data = null)
     {
-        $this->container['completed_at'] = $data['completed_at'] ?? null;
-        $this->container['requested_at'] = $data['requested_at'] ?? null;
-        $this->container['started_at'] = $data['started_at'] ?? null;
-        $this->container['links'] = $data['links'] ?? null;
-        $this->container['results'] = $data['results'] ?? null;
-        $this->container['status'] = $data['status'] ?? null;
+        $this->setIfExists('completed_at', $data ?? [], null);
+        $this->setIfExists('requested_at', $data ?? [], null);
+        $this->setIfExists('started_at', $data ?? [], null);
+        $this->setIfExists('links', $data ?? [], null);
+        $this->setIfExists('results', $data ?? [], null);
+        $this->setIfExists('status', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -292,6 +383,9 @@ public function getCompletedAt()
      */
     public function setCompletedAt($completed_at)
     {
+        if (is_null($completed_at)) {
+            throw new \InvalidArgumentException('non-nullable completed_at cannot be null');
+        }
         $this->container['completed_at'] = $completed_at;
 
         return $this;
@@ -316,6 +410,9 @@ public function getRequestedAt()
      */
     public function setRequestedAt($requested_at)
     {
+        if (is_null($requested_at)) {
+            throw new \InvalidArgumentException('non-nullable requested_at cannot be null');
+        }
         $this->container['requested_at'] = $requested_at;
 
         return $this;
@@ -340,6 +437,9 @@ public function getStartedAt()
      */
     public function setStartedAt($started_at)
     {
+        if (is_null($started_at)) {
+            throw new \InvalidArgumentException('non-nullable started_at cannot be null');
+        }
         $this->container['started_at'] = $started_at;
 
         return $this;
@@ -364,6 +464,9 @@ public function getLinks()
      */
     public function setLinks($links)
     {
+        if (is_null($links)) {
+            throw new \InvalidArgumentException('non-nullable links cannot be null');
+        }
         $this->container['links'] = $links;
 
         return $this;
@@ -388,6 +491,9 @@ public function getResults()
      */
     public function setResults($results)
     {
+        if (is_null($results)) {
+            throw new \InvalidArgumentException('non-nullable results cannot be null');
+        }
         $this->container['results'] = $results;
 
         return $this;
@@ -412,6 +518,9 @@ public function getStatus()
      */
     public function setStatus($status)
     {
+        if (is_null($status)) {
+            throw new \InvalidArgumentException('non-nullable status cannot be null');
+        }
         $allowedValues = $this->getStatusAllowableValues();
         if (!in_array($status, $allowedValues, true)) {
             throw new \InvalidArgumentException(
diff --git a/codegen/Crm/Objects/Notes/Model/BatchResponseSimplePublicObjectWithErrors.php b/codegen/Crm/Objects/Notes/Model/BatchResponseSimplePublicObjectWithErrors.php
index dcdc9bee..aed9ac0b 100644
--- a/codegen/Crm/Objects/Notes/Model/BatchResponseSimplePublicObjectWithErrors.php
+++ b/codegen/Crm/Objects/Notes/Model/BatchResponseSimplePublicObjectWithErrors.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -85,6 +85,29 @@ class BatchResponseSimplePublicObjectWithErrors implements ModelInterface, Array
         'status' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'completed_at' => false,
+        'num_errors' => false,
+        'requested_at' => false,
+        'started_at' => false,
+        'links' => false,
+        'results' => false,
+        'errors' => false,
+        'status' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -105,6 +128,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -230,14 +305,32 @@ public function getStatusAllowableValues()
      */
     public function __construct(array $data = null)
     {
-        $this->container['completed_at'] = $data['completed_at'] ?? null;
-        $this->container['num_errors'] = $data['num_errors'] ?? null;
-        $this->container['requested_at'] = $data['requested_at'] ?? null;
-        $this->container['started_at'] = $data['started_at'] ?? null;
-        $this->container['links'] = $data['links'] ?? null;
-        $this->container['results'] = $data['results'] ?? null;
-        $this->container['errors'] = $data['errors'] ?? null;
-        $this->container['status'] = $data['status'] ?? null;
+        $this->setIfExists('completed_at', $data ?? [], null);
+        $this->setIfExists('num_errors', $data ?? [], null);
+        $this->setIfExists('requested_at', $data ?? [], null);
+        $this->setIfExists('started_at', $data ?? [], null);
+        $this->setIfExists('links', $data ?? [], null);
+        $this->setIfExists('results', $data ?? [], null);
+        $this->setIfExists('errors', $data ?? [], null);
+        $this->setIfExists('status', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -304,6 +397,9 @@ public function getCompletedAt()
      */
     public function setCompletedAt($completed_at)
     {
+        if (is_null($completed_at)) {
+            throw new \InvalidArgumentException('non-nullable completed_at cannot be null');
+        }
         $this->container['completed_at'] = $completed_at;
 
         return $this;
@@ -328,6 +424,9 @@ public function getNumErrors()
      */
     public function setNumErrors($num_errors)
     {
+        if (is_null($num_errors)) {
+            throw new \InvalidArgumentException('non-nullable num_errors cannot be null');
+        }
         $this->container['num_errors'] = $num_errors;
 
         return $this;
@@ -352,6 +451,9 @@ public function getRequestedAt()
      */
     public function setRequestedAt($requested_at)
     {
+        if (is_null($requested_at)) {
+            throw new \InvalidArgumentException('non-nullable requested_at cannot be null');
+        }
         $this->container['requested_at'] = $requested_at;
 
         return $this;
@@ -376,6 +478,9 @@ public function getStartedAt()
      */
     public function setStartedAt($started_at)
     {
+        if (is_null($started_at)) {
+            throw new \InvalidArgumentException('non-nullable started_at cannot be null');
+        }
         $this->container['started_at'] = $started_at;
 
         return $this;
@@ -400,6 +505,9 @@ public function getLinks()
      */
     public function setLinks($links)
     {
+        if (is_null($links)) {
+            throw new \InvalidArgumentException('non-nullable links cannot be null');
+        }
         $this->container['links'] = $links;
 
         return $this;
@@ -424,6 +532,9 @@ public function getResults()
      */
     public function setResults($results)
     {
+        if (is_null($results)) {
+            throw new \InvalidArgumentException('non-nullable results cannot be null');
+        }
         $this->container['results'] = $results;
 
         return $this;
@@ -448,6 +559,9 @@ public function getErrors()
      */
     public function setErrors($errors)
     {
+        if (is_null($errors)) {
+            throw new \InvalidArgumentException('non-nullable errors cannot be null');
+        }
         $this->container['errors'] = $errors;
 
         return $this;
@@ -472,6 +586,9 @@ public function getStatus()
      */
     public function setStatus($status)
     {
+        if (is_null($status)) {
+            throw new \InvalidArgumentException('non-nullable status cannot be null');
+        }
         $allowedValues = $this->getStatusAllowableValues();
         if (!in_array($status, $allowedValues, true)) {
             throw new \InvalidArgumentException(
diff --git a/codegen/Crm/Objects/Notes/Model/CollectionResponseAssociatedId.php b/codegen/Crm/Objects/Notes/Model/CollectionResponseAssociatedId.php
index ed366ee9..7cdd8b2d 100644
--- a/codegen/Crm/Objects/Notes/Model/CollectionResponseAssociatedId.php
+++ b/codegen/Crm/Objects/Notes/Model/CollectionResponseAssociatedId.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -73,6 +73,23 @@ class CollectionResponseAssociatedId implements ModelInterface, ArrayAccess, \Js
         'results' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'paging' => false,
+        'results' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -93,6 +110,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -181,8 +250,26 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['paging'] = $data['paging'] ?? null;
-        $this->container['results'] = $data['results'] ?? null;
+        $this->setIfExists('paging', $data ?? [], null);
+        $this->setIfExists('results', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -231,6 +318,9 @@ public function getPaging()
      */
     public function setPaging($paging)
     {
+        if (is_null($paging)) {
+            throw new \InvalidArgumentException('non-nullable paging cannot be null');
+        }
         $this->container['paging'] = $paging;
 
         return $this;
@@ -255,6 +345,9 @@ public function getResults()
      */
     public function setResults($results)
     {
+        if (is_null($results)) {
+            throw new \InvalidArgumentException('non-nullable results cannot be null');
+        }
         $this->container['results'] = $results;
 
         return $this;
diff --git a/codegen/Crm/Objects/Notes/Model/CollectionResponseSimplePublicObjectWithAssociationsForwardPaging.php b/codegen/Crm/Objects/Notes/Model/CollectionResponseSimplePublicObjectWithAssociationsForwardPaging.php
index c62a18cd..626d2247 100644
--- a/codegen/Crm/Objects/Notes/Model/CollectionResponseSimplePublicObjectWithAssociationsForwardPaging.php
+++ b/codegen/Crm/Objects/Notes/Model/CollectionResponseSimplePublicObjectWithAssociationsForwardPaging.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -73,6 +73,23 @@ class CollectionResponseSimplePublicObjectWithAssociationsForwardPaging implemen
         'results' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'paging' => false,
+        'results' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -93,6 +110,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -181,8 +250,26 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['paging'] = $data['paging'] ?? null;
-        $this->container['results'] = $data['results'] ?? null;
+        $this->setIfExists('paging', $data ?? [], null);
+        $this->setIfExists('results', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -231,6 +318,9 @@ public function getPaging()
      */
     public function setPaging($paging)
     {
+        if (is_null($paging)) {
+            throw new \InvalidArgumentException('non-nullable paging cannot be null');
+        }
         $this->container['paging'] = $paging;
 
         return $this;
@@ -255,6 +345,9 @@ public function getResults()
      */
     public function setResults($results)
     {
+        if (is_null($results)) {
+            throw new \InvalidArgumentException('non-nullable results cannot be null');
+        }
         $this->container['results'] = $results;
 
         return $this;
diff --git a/codegen/Crm/Objects/Notes/Model/CollectionResponseWithTotalSimplePublicObjectForwardPaging.php b/codegen/Crm/Objects/Notes/Model/CollectionResponseWithTotalSimplePublicObjectForwardPaging.php
index a3586ed0..a3f93b75 100644
--- a/codegen/Crm/Objects/Notes/Model/CollectionResponseWithTotalSimplePublicObjectForwardPaging.php
+++ b/codegen/Crm/Objects/Notes/Model/CollectionResponseWithTotalSimplePublicObjectForwardPaging.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -75,6 +75,24 @@ class CollectionResponseWithTotalSimplePublicObjectForwardPaging implements Mode
         'results' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'total' => false,
+        'paging' => false,
+        'results' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -95,6 +113,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -186,9 +256,27 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['total'] = $data['total'] ?? null;
-        $this->container['paging'] = $data['paging'] ?? null;
-        $this->container['results'] = $data['results'] ?? null;
+        $this->setIfExists('total', $data ?? [], null);
+        $this->setIfExists('paging', $data ?? [], null);
+        $this->setIfExists('results', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -240,6 +328,9 @@ public function getTotal()
      */
     public function setTotal($total)
     {
+        if (is_null($total)) {
+            throw new \InvalidArgumentException('non-nullable total cannot be null');
+        }
         $this->container['total'] = $total;
 
         return $this;
@@ -264,6 +355,9 @@ public function getPaging()
      */
     public function setPaging($paging)
     {
+        if (is_null($paging)) {
+            throw new \InvalidArgumentException('non-nullable paging cannot be null');
+        }
         $this->container['paging'] = $paging;
 
         return $this;
@@ -288,6 +382,9 @@ public function getResults()
      */
     public function setResults($results)
     {
+        if (is_null($results)) {
+            throw new \InvalidArgumentException('non-nullable results cannot be null');
+        }
         $this->container['results'] = $results;
 
         return $this;
diff --git a/codegen/Crm/Objects/Notes/Model/Error.php b/codegen/Crm/Objects/Notes/Model/Error.php
index 4476975b..28d02e5c 100644
--- a/codegen/Crm/Objects/Notes/Model/Error.php
+++ b/codegen/Crm/Objects/Notes/Model/Error.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -83,6 +83,28 @@ class Error implements ModelInterface, ArrayAccess, \JsonSerializable
         'errors' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'sub_category' => false,
+        'context' => false,
+        'correlation_id' => false,
+        'links' => false,
+        'message' => false,
+        'category' => false,
+        'errors' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -103,6 +125,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -206,13 +280,31 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['sub_category'] = $data['sub_category'] ?? null;
-        $this->container['context'] = $data['context'] ?? null;
-        $this->container['correlation_id'] = $data['correlation_id'] ?? null;
-        $this->container['links'] = $data['links'] ?? null;
-        $this->container['message'] = $data['message'] ?? null;
-        $this->container['category'] = $data['category'] ?? null;
-        $this->container['errors'] = $data['errors'] ?? null;
+        $this->setIfExists('sub_category', $data ?? [], null);
+        $this->setIfExists('context', $data ?? [], null);
+        $this->setIfExists('correlation_id', $data ?? [], null);
+        $this->setIfExists('links', $data ?? [], null);
+        $this->setIfExists('message', $data ?? [], null);
+        $this->setIfExists('category', $data ?? [], null);
+        $this->setIfExists('errors', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -267,6 +359,9 @@ public function getSubCategory()
      */
     public function setSubCategory($sub_category)
     {
+        if (is_null($sub_category)) {
+            throw new \InvalidArgumentException('non-nullable sub_category cannot be null');
+        }
         $this->container['sub_category'] = $sub_category;
 
         return $this;
@@ -291,6 +386,9 @@ public function getContext()
      */
     public function setContext($context)
     {
+        if (is_null($context)) {
+            throw new \InvalidArgumentException('non-nullable context cannot be null');
+        }
         $this->container['context'] = $context;
 
         return $this;
@@ -315,6 +413,9 @@ public function getCorrelationId()
      */
     public function setCorrelationId($correlation_id)
     {
+        if (is_null($correlation_id)) {
+            throw new \InvalidArgumentException('non-nullable correlation_id cannot be null');
+        }
         $this->container['correlation_id'] = $correlation_id;
 
         return $this;
@@ -339,6 +440,9 @@ public function getLinks()
      */
     public function setLinks($links)
     {
+        if (is_null($links)) {
+            throw new \InvalidArgumentException('non-nullable links cannot be null');
+        }
         $this->container['links'] = $links;
 
         return $this;
@@ -363,6 +467,9 @@ public function getMessage()
      */
     public function setMessage($message)
     {
+        if (is_null($message)) {
+            throw new \InvalidArgumentException('non-nullable message cannot be null');
+        }
         $this->container['message'] = $message;
 
         return $this;
@@ -387,6 +494,9 @@ public function getCategory()
      */
     public function setCategory($category)
     {
+        if (is_null($category)) {
+            throw new \InvalidArgumentException('non-nullable category cannot be null');
+        }
         $this->container['category'] = $category;
 
         return $this;
@@ -411,6 +521,9 @@ public function getErrors()
      */
     public function setErrors($errors)
     {
+        if (is_null($errors)) {
+            throw new \InvalidArgumentException('non-nullable errors cannot be null');
+        }
         $this->container['errors'] = $errors;
 
         return $this;
diff --git a/codegen/Crm/Objects/Notes/Model/ErrorDetail.php b/codegen/Crm/Objects/Notes/Model/ErrorDetail.php
index 1c9395fa..0402a63c 100644
--- a/codegen/Crm/Objects/Notes/Model/ErrorDetail.php
+++ b/codegen/Crm/Objects/Notes/Model/ErrorDetail.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -79,6 +79,26 @@ class ErrorDetail implements ModelInterface, ArrayAccess, \JsonSerializable
         'message' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'sub_category' => false,
+        'code' => false,
+        'in' => false,
+        'context' => false,
+        'message' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -99,6 +119,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -196,11 +268,29 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['sub_category'] = $data['sub_category'] ?? null;
-        $this->container['code'] = $data['code'] ?? null;
-        $this->container['in'] = $data['in'] ?? null;
-        $this->container['context'] = $data['context'] ?? null;
-        $this->container['message'] = $data['message'] ?? null;
+        $this->setIfExists('sub_category', $data ?? [], null);
+        $this->setIfExists('code', $data ?? [], null);
+        $this->setIfExists('in', $data ?? [], null);
+        $this->setIfExists('context', $data ?? [], null);
+        $this->setIfExists('message', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -249,6 +339,9 @@ public function getSubCategory()
      */
     public function setSubCategory($sub_category)
     {
+        if (is_null($sub_category)) {
+            throw new \InvalidArgumentException('non-nullable sub_category cannot be null');
+        }
         $this->container['sub_category'] = $sub_category;
 
         return $this;
@@ -273,6 +366,9 @@ public function getCode()
      */
     public function setCode($code)
     {
+        if (is_null($code)) {
+            throw new \InvalidArgumentException('non-nullable code cannot be null');
+        }
         $this->container['code'] = $code;
 
         return $this;
@@ -297,6 +393,9 @@ public function getIn()
      */
     public function setIn($in)
     {
+        if (is_null($in)) {
+            throw new \InvalidArgumentException('non-nullable in cannot be null');
+        }
         $this->container['in'] = $in;
 
         return $this;
@@ -321,6 +420,9 @@ public function getContext()
      */
     public function setContext($context)
     {
+        if (is_null($context)) {
+            throw new \InvalidArgumentException('non-nullable context cannot be null');
+        }
         $this->container['context'] = $context;
 
         return $this;
@@ -345,6 +447,9 @@ public function getMessage()
      */
     public function setMessage($message)
     {
+        if (is_null($message)) {
+            throw new \InvalidArgumentException('non-nullable message cannot be null');
+        }
         $this->container['message'] = $message;
 
         return $this;
diff --git a/codegen/Crm/Objects/Notes/Model/Filter.php b/codegen/Crm/Objects/Notes/Model/Filter.php
index 95dfbbcc..e206cb7d 100644
--- a/codegen/Crm/Objects/Notes/Model/Filter.php
+++ b/codegen/Crm/Objects/Notes/Model/Filter.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -79,6 +79,26 @@ class Filter implements ModelInterface, ArrayAccess, \JsonSerializable
         'operator' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'high_value' => false,
+        'property_name' => false,
+        'values' => false,
+        'value' => false,
+        'operator' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -99,6 +119,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -233,11 +305,29 @@ public function getOperatorAllowableValues()
      */
     public function __construct(array $data = null)
     {
-        $this->container['high_value'] = $data['high_value'] ?? null;
-        $this->container['property_name'] = $data['property_name'] ?? null;
-        $this->container['values'] = $data['values'] ?? null;
-        $this->container['value'] = $data['value'] ?? null;
-        $this->container['operator'] = $data['operator'] ?? null;
+        $this->setIfExists('high_value', $data ?? [], null);
+        $this->setIfExists('property_name', $data ?? [], null);
+        $this->setIfExists('values', $data ?? [], null);
+        $this->setIfExists('value', $data ?? [], null);
+        $this->setIfExists('operator', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -298,6 +388,9 @@ public function getHighValue()
      */
     public function setHighValue($high_value)
     {
+        if (is_null($high_value)) {
+            throw new \InvalidArgumentException('non-nullable high_value cannot be null');
+        }
         $this->container['high_value'] = $high_value;
 
         return $this;
@@ -322,6 +415,9 @@ public function getPropertyName()
      */
     public function setPropertyName($property_name)
     {
+        if (is_null($property_name)) {
+            throw new \InvalidArgumentException('non-nullable property_name cannot be null');
+        }
         $this->container['property_name'] = $property_name;
 
         return $this;
@@ -346,6 +442,9 @@ public function getValues()
      */
     public function setValues($values)
     {
+        if (is_null($values)) {
+            throw new \InvalidArgumentException('non-nullable values cannot be null');
+        }
         $this->container['values'] = $values;
 
         return $this;
@@ -370,6 +469,9 @@ public function getValue()
      */
     public function setValue($value)
     {
+        if (is_null($value)) {
+            throw new \InvalidArgumentException('non-nullable value cannot be null');
+        }
         $this->container['value'] = $value;
 
         return $this;
@@ -394,6 +496,9 @@ public function getOperator()
      */
     public function setOperator($operator)
     {
+        if (is_null($operator)) {
+            throw new \InvalidArgumentException('non-nullable operator cannot be null');
+        }
         $allowedValues = $this->getOperatorAllowableValues();
         if (!in_array($operator, $allowedValues, true)) {
             throw new \InvalidArgumentException(
diff --git a/codegen/Crm/Objects/Notes/Model/FilterGroup.php b/codegen/Crm/Objects/Notes/Model/FilterGroup.php
index 87f7750a..0f4166b6 100644
--- a/codegen/Crm/Objects/Notes/Model/FilterGroup.php
+++ b/codegen/Crm/Objects/Notes/Model/FilterGroup.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -71,6 +71,22 @@ class FilterGroup implements ModelInterface, ArrayAccess, \JsonSerializable
         'filters' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'filters' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -91,6 +107,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -176,7 +244,25 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['filters'] = $data['filters'] ?? null;
+        $this->setIfExists('filters', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -225,6 +311,9 @@ public function getFilters()
      */
     public function setFilters($filters)
     {
+        if (is_null($filters)) {
+            throw new \InvalidArgumentException('non-nullable filters cannot be null');
+        }
         $this->container['filters'] = $filters;
 
         return $this;
diff --git a/codegen/Crm/Objects/Notes/Model/ForwardPaging.php b/codegen/Crm/Objects/Notes/Model/ForwardPaging.php
index 0b57c263..b7b70f41 100644
--- a/codegen/Crm/Objects/Notes/Model/ForwardPaging.php
+++ b/codegen/Crm/Objects/Notes/Model/ForwardPaging.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -71,6 +71,22 @@ class ForwardPaging implements ModelInterface, ArrayAccess, \JsonSerializable
         'next' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'next' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -91,6 +107,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -176,7 +244,25 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['next'] = $data['next'] ?? null;
+        $this->setIfExists('next', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -222,6 +308,9 @@ public function getNext()
      */
     public function setNext($next)
     {
+        if (is_null($next)) {
+            throw new \InvalidArgumentException('non-nullable next cannot be null');
+        }
         $this->container['next'] = $next;
 
         return $this;
diff --git a/codegen/Crm/Objects/Notes/Model/ModelInterface.php b/codegen/Crm/Objects/Notes/Model/ModelInterface.php
index b4b053bc..a4b25dc3 100644
--- a/codegen/Crm/Objects/Notes/Model/ModelInterface.php
+++ b/codegen/Crm/Objects/Notes/Model/ModelInterface.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -92,4 +92,20 @@ public function listInvalidProperties();
      * @return bool
      */
     public function valid();
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool;
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool;
 }
diff --git a/codegen/Crm/Objects/Notes/Model/NextPage.php b/codegen/Crm/Objects/Notes/Model/NextPage.php
index 965a3d93..5db1f77c 100644
--- a/codegen/Crm/Objects/Notes/Model/NextPage.php
+++ b/codegen/Crm/Objects/Notes/Model/NextPage.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -73,6 +73,23 @@ class NextPage implements ModelInterface, ArrayAccess, \JsonSerializable
         'after' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'link' => false,
+        'after' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -93,6 +110,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -181,8 +250,26 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['link'] = $data['link'] ?? null;
-        $this->container['after'] = $data['after'] ?? null;
+        $this->setIfExists('link', $data ?? [], null);
+        $this->setIfExists('after', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -231,6 +318,9 @@ public function getLink()
      */
     public function setLink($link)
     {
+        if (is_null($link)) {
+            throw new \InvalidArgumentException('non-nullable link cannot be null');
+        }
         $this->container['link'] = $link;
 
         return $this;
@@ -255,6 +345,9 @@ public function getAfter()
      */
     public function setAfter($after)
     {
+        if (is_null($after)) {
+            throw new \InvalidArgumentException('non-nullable after cannot be null');
+        }
         $this->container['after'] = $after;
 
         return $this;
diff --git a/codegen/Crm/Objects/Notes/Model/Paging.php b/codegen/Crm/Objects/Notes/Model/Paging.php
index 954c8586..8a99725d 100644
--- a/codegen/Crm/Objects/Notes/Model/Paging.php
+++ b/codegen/Crm/Objects/Notes/Model/Paging.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -73,6 +73,23 @@ class Paging implements ModelInterface, ArrayAccess, \JsonSerializable
         'prev' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'next' => false,
+        'prev' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -93,6 +110,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -181,8 +250,26 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['next'] = $data['next'] ?? null;
-        $this->container['prev'] = $data['prev'] ?? null;
+        $this->setIfExists('next', $data ?? [], null);
+        $this->setIfExists('prev', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -228,6 +315,9 @@ public function getNext()
      */
     public function setNext($next)
     {
+        if (is_null($next)) {
+            throw new \InvalidArgumentException('non-nullable next cannot be null');
+        }
         $this->container['next'] = $next;
 
         return $this;
@@ -252,6 +342,9 @@ public function getPrev()
      */
     public function setPrev($prev)
     {
+        if (is_null($prev)) {
+            throw new \InvalidArgumentException('non-nullable prev cannot be null');
+        }
         $this->container['prev'] = $prev;
 
         return $this;
diff --git a/codegen/Crm/Objects/Notes/Model/PreviousPage.php b/codegen/Crm/Objects/Notes/Model/PreviousPage.php
index 02f690b2..41fe02f9 100644
--- a/codegen/Crm/Objects/Notes/Model/PreviousPage.php
+++ b/codegen/Crm/Objects/Notes/Model/PreviousPage.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -73,6 +73,23 @@ class PreviousPage implements ModelInterface, ArrayAccess, \JsonSerializable
         'link' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'before' => false,
+        'link' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -93,6 +110,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -181,8 +250,26 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['before'] = $data['before'] ?? null;
-        $this->container['link'] = $data['link'] ?? null;
+        $this->setIfExists('before', $data ?? [], null);
+        $this->setIfExists('link', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -231,6 +318,9 @@ public function getBefore()
      */
     public function setBefore($before)
     {
+        if (is_null($before)) {
+            throw new \InvalidArgumentException('non-nullable before cannot be null');
+        }
         $this->container['before'] = $before;
 
         return $this;
@@ -255,6 +345,9 @@ public function getLink()
      */
     public function setLink($link)
     {
+        if (is_null($link)) {
+            throw new \InvalidArgumentException('non-nullable link cannot be null');
+        }
         $this->container['link'] = $link;
 
         return $this;
diff --git a/codegen/Crm/Objects/Notes/Model/PublicAssociationsForObject.php b/codegen/Crm/Objects/Notes/Model/PublicAssociationsForObject.php
index c85a866c..d2bb5a7d 100644
--- a/codegen/Crm/Objects/Notes/Model/PublicAssociationsForObject.php
+++ b/codegen/Crm/Objects/Notes/Model/PublicAssociationsForObject.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -73,6 +73,23 @@ class PublicAssociationsForObject implements ModelInterface, ArrayAccess, \JsonS
         'to' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'types' => false,
+        'to' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -93,6 +110,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -181,8 +250,26 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['types'] = $data['types'] ?? null;
-        $this->container['to'] = $data['to'] ?? null;
+        $this->setIfExists('types', $data ?? [], null);
+        $this->setIfExists('to', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -234,6 +321,9 @@ public function getTypes()
      */
     public function setTypes($types)
     {
+        if (is_null($types)) {
+            throw new \InvalidArgumentException('non-nullable types cannot be null');
+        }
         $this->container['types'] = $types;
 
         return $this;
@@ -258,6 +348,9 @@ public function getTo()
      */
     public function setTo($to)
     {
+        if (is_null($to)) {
+            throw new \InvalidArgumentException('non-nullable to cannot be null');
+        }
         $this->container['to'] = $to;
 
         return $this;
diff --git a/codegen/Crm/Objects/Notes/Model/PublicGdprDeleteInput.php b/codegen/Crm/Objects/Notes/Model/PublicGdprDeleteInput.php
index b30eccb4..1b09a7c2 100644
--- a/codegen/Crm/Objects/Notes/Model/PublicGdprDeleteInput.php
+++ b/codegen/Crm/Objects/Notes/Model/PublicGdprDeleteInput.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -73,6 +73,23 @@ class PublicGdprDeleteInput implements ModelInterface, ArrayAccess, \JsonSeriali
         'object_id' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'id_property' => false,
+        'object_id' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -93,6 +110,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -181,8 +250,26 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['id_property'] = $data['id_property'] ?? null;
-        $this->container['object_id'] = $data['object_id'] ?? null;
+        $this->setIfExists('id_property', $data ?? [], null);
+        $this->setIfExists('object_id', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -231,6 +318,9 @@ public function getIdProperty()
      */
     public function setIdProperty($id_property)
     {
+        if (is_null($id_property)) {
+            throw new \InvalidArgumentException('non-nullable id_property cannot be null');
+        }
         $this->container['id_property'] = $id_property;
 
         return $this;
@@ -255,6 +345,9 @@ public function getObjectId()
      */
     public function setObjectId($object_id)
     {
+        if (is_null($object_id)) {
+            throw new \InvalidArgumentException('non-nullable object_id cannot be null');
+        }
         $this->container['object_id'] = $object_id;
 
         return $this;
diff --git a/codegen/Crm/Objects/Notes/Model/PublicMergeInput.php b/codegen/Crm/Objects/Notes/Model/PublicMergeInput.php
index e433a617..a21a6c1c 100644
--- a/codegen/Crm/Objects/Notes/Model/PublicMergeInput.php
+++ b/codegen/Crm/Objects/Notes/Model/PublicMergeInput.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -73,6 +73,23 @@ class PublicMergeInput implements ModelInterface, ArrayAccess, \JsonSerializable
         'primary_object_id' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'object_id_to_merge' => false,
+        'primary_object_id' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -93,6 +110,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -181,8 +250,26 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['object_id_to_merge'] = $data['object_id_to_merge'] ?? null;
-        $this->container['primary_object_id'] = $data['primary_object_id'] ?? null;
+        $this->setIfExists('object_id_to_merge', $data ?? [], null);
+        $this->setIfExists('primary_object_id', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -234,6 +321,9 @@ public function getObjectIdToMerge()
      */
     public function setObjectIdToMerge($object_id_to_merge)
     {
+        if (is_null($object_id_to_merge)) {
+            throw new \InvalidArgumentException('non-nullable object_id_to_merge cannot be null');
+        }
         $this->container['object_id_to_merge'] = $object_id_to_merge;
 
         return $this;
@@ -258,6 +348,9 @@ public function getPrimaryObjectId()
      */
     public function setPrimaryObjectId($primary_object_id)
     {
+        if (is_null($primary_object_id)) {
+            throw new \InvalidArgumentException('non-nullable primary_object_id cannot be null');
+        }
         $this->container['primary_object_id'] = $primary_object_id;
 
         return $this;
diff --git a/codegen/Crm/Objects/Notes/Model/PublicObjectId.php b/codegen/Crm/Objects/Notes/Model/PublicObjectId.php
index cb017faf..016f47c1 100644
--- a/codegen/Crm/Objects/Notes/Model/PublicObjectId.php
+++ b/codegen/Crm/Objects/Notes/Model/PublicObjectId.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -71,6 +71,22 @@ class PublicObjectId implements ModelInterface, ArrayAccess, \JsonSerializable
         'id' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'id' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -91,6 +107,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -176,7 +244,25 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['id'] = $data['id'] ?? null;
+        $this->setIfExists('id', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -225,6 +311,9 @@ public function getId()
      */
     public function setId($id)
     {
+        if (is_null($id)) {
+            throw new \InvalidArgumentException('non-nullable id cannot be null');
+        }
         $this->container['id'] = $id;
 
         return $this;
diff --git a/codegen/Crm/Objects/Notes/Model/PublicObjectSearchRequest.php b/codegen/Crm/Objects/Notes/Model/PublicObjectSearchRequest.php
index 22d7766c..ba63dbfa 100644
--- a/codegen/Crm/Objects/Notes/Model/PublicObjectSearchRequest.php
+++ b/codegen/Crm/Objects/Notes/Model/PublicObjectSearchRequest.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -81,6 +81,27 @@ class PublicObjectSearchRequest implements ModelInterface, ArrayAccess, \JsonSer
         'filter_groups' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'query' => false,
+        'limit' => false,
+        'after' => false,
+        'sorts' => false,
+        'properties' => false,
+        'filter_groups' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -101,6 +122,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -201,12 +274,30 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['query'] = $data['query'] ?? null;
-        $this->container['limit'] = $data['limit'] ?? null;
-        $this->container['after'] = $data['after'] ?? null;
-        $this->container['sorts'] = $data['sorts'] ?? null;
-        $this->container['properties'] = $data['properties'] ?? null;
-        $this->container['filter_groups'] = $data['filter_groups'] ?? null;
+        $this->setIfExists('query', $data ?? [], null);
+        $this->setIfExists('limit', $data ?? [], null);
+        $this->setIfExists('after', $data ?? [], null);
+        $this->setIfExists('sorts', $data ?? [], null);
+        $this->setIfExists('properties', $data ?? [], null);
+        $this->setIfExists('filter_groups', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -267,6 +358,9 @@ public function getQuery()
      */
     public function setQuery($query)
     {
+        if (is_null($query)) {
+            throw new \InvalidArgumentException('non-nullable query cannot be null');
+        }
         $this->container['query'] = $query;
 
         return $this;
@@ -291,6 +385,9 @@ public function getLimit()
      */
     public function setLimit($limit)
     {
+        if (is_null($limit)) {
+            throw new \InvalidArgumentException('non-nullable limit cannot be null');
+        }
         $this->container['limit'] = $limit;
 
         return $this;
@@ -315,6 +412,9 @@ public function getAfter()
      */
     public function setAfter($after)
     {
+        if (is_null($after)) {
+            throw new \InvalidArgumentException('non-nullable after cannot be null');
+        }
         $this->container['after'] = $after;
 
         return $this;
@@ -339,6 +439,9 @@ public function getSorts()
      */
     public function setSorts($sorts)
     {
+        if (is_null($sorts)) {
+            throw new \InvalidArgumentException('non-nullable sorts cannot be null');
+        }
         $this->container['sorts'] = $sorts;
 
         return $this;
@@ -363,6 +466,9 @@ public function getProperties()
      */
     public function setProperties($properties)
     {
+        if (is_null($properties)) {
+            throw new \InvalidArgumentException('non-nullable properties cannot be null');
+        }
         $this->container['properties'] = $properties;
 
         return $this;
@@ -387,6 +493,9 @@ public function getFilterGroups()
      */
     public function setFilterGroups($filter_groups)
     {
+        if (is_null($filter_groups)) {
+            throw new \InvalidArgumentException('non-nullable filter_groups cannot be null');
+        }
         $this->container['filter_groups'] = $filter_groups;
 
         return $this;
diff --git a/codegen/Crm/Objects/Notes/Model/SimplePublicObject.php b/codegen/Crm/Objects/Notes/Model/SimplePublicObject.php
index 70e96aff..1b1b45a2 100644
--- a/codegen/Crm/Objects/Notes/Model/SimplePublicObject.php
+++ b/codegen/Crm/Objects/Notes/Model/SimplePublicObject.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -83,6 +83,28 @@ class SimplePublicObject implements ModelInterface, ArrayAccess, \JsonSerializab
         'updated_at' => 'date-time'
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'created_at' => false,
+        'archived' => false,
+        'archived_at' => false,
+        'properties_with_history' => false,
+        'id' => false,
+        'properties' => false,
+        'updated_at' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -103,6 +125,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -206,13 +280,31 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['created_at'] = $data['created_at'] ?? null;
-        $this->container['archived'] = $data['archived'] ?? null;
-        $this->container['archived_at'] = $data['archived_at'] ?? null;
-        $this->container['properties_with_history'] = $data['properties_with_history'] ?? null;
-        $this->container['id'] = $data['id'] ?? null;
-        $this->container['properties'] = $data['properties'] ?? null;
-        $this->container['updated_at'] = $data['updated_at'] ?? null;
+        $this->setIfExists('created_at', $data ?? [], null);
+        $this->setIfExists('archived', $data ?? [], null);
+        $this->setIfExists('archived_at', $data ?? [], null);
+        $this->setIfExists('properties_with_history', $data ?? [], null);
+        $this->setIfExists('id', $data ?? [], null);
+        $this->setIfExists('properties', $data ?? [], null);
+        $this->setIfExists('updated_at', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -270,6 +362,9 @@ public function getCreatedAt()
      */
     public function setCreatedAt($created_at)
     {
+        if (is_null($created_at)) {
+            throw new \InvalidArgumentException('non-nullable created_at cannot be null');
+        }
         $this->container['created_at'] = $created_at;
 
         return $this;
@@ -294,6 +389,9 @@ public function getArchived()
      */
     public function setArchived($archived)
     {
+        if (is_null($archived)) {
+            throw new \InvalidArgumentException('non-nullable archived cannot be null');
+        }
         $this->container['archived'] = $archived;
 
         return $this;
@@ -318,6 +416,9 @@ public function getArchivedAt()
      */
     public function setArchivedAt($archived_at)
     {
+        if (is_null($archived_at)) {
+            throw new \InvalidArgumentException('non-nullable archived_at cannot be null');
+        }
         $this->container['archived_at'] = $archived_at;
 
         return $this;
@@ -342,6 +443,9 @@ public function getPropertiesWithHistory()
      */
     public function setPropertiesWithHistory($properties_with_history)
     {
+        if (is_null($properties_with_history)) {
+            throw new \InvalidArgumentException('non-nullable properties_with_history cannot be null');
+        }
         $this->container['properties_with_history'] = $properties_with_history;
 
         return $this;
@@ -366,6 +470,9 @@ public function getId()
      */
     public function setId($id)
     {
+        if (is_null($id)) {
+            throw new \InvalidArgumentException('non-nullable id cannot be null');
+        }
         $this->container['id'] = $id;
 
         return $this;
@@ -390,6 +497,9 @@ public function getProperties()
      */
     public function setProperties($properties)
     {
+        if (is_null($properties)) {
+            throw new \InvalidArgumentException('non-nullable properties cannot be null');
+        }
         $this->container['properties'] = $properties;
 
         return $this;
@@ -414,6 +524,9 @@ public function getUpdatedAt()
      */
     public function setUpdatedAt($updated_at)
     {
+        if (is_null($updated_at)) {
+            throw new \InvalidArgumentException('non-nullable updated_at cannot be null');
+        }
         $this->container['updated_at'] = $updated_at;
 
         return $this;
diff --git a/codegen/Crm/Objects/Notes/Model/SimplePublicObjectBatchInput.php b/codegen/Crm/Objects/Notes/Model/SimplePublicObjectBatchInput.php
index f795898d..ce5c61c4 100644
--- a/codegen/Crm/Objects/Notes/Model/SimplePublicObjectBatchInput.php
+++ b/codegen/Crm/Objects/Notes/Model/SimplePublicObjectBatchInput.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -75,6 +75,24 @@ class SimplePublicObjectBatchInput implements ModelInterface, ArrayAccess, \Json
         'properties' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'id_property' => false,
+        'id' => false,
+        'properties' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -95,6 +113,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -186,9 +256,27 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['id_property'] = $data['id_property'] ?? null;
-        $this->container['id'] = $data['id'] ?? null;
-        $this->container['properties'] = $data['properties'] ?? null;
+        $this->setIfExists('id_property', $data ?? [], null);
+        $this->setIfExists('id', $data ?? [], null);
+        $this->setIfExists('properties', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -240,6 +328,9 @@ public function getIdProperty()
      */
     public function setIdProperty($id_property)
     {
+        if (is_null($id_property)) {
+            throw new \InvalidArgumentException('non-nullable id_property cannot be null');
+        }
         $this->container['id_property'] = $id_property;
 
         return $this;
@@ -264,6 +355,9 @@ public function getId()
      */
     public function setId($id)
     {
+        if (is_null($id)) {
+            throw new \InvalidArgumentException('non-nullable id cannot be null');
+        }
         $this->container['id'] = $id;
 
         return $this;
@@ -288,6 +382,9 @@ public function getProperties()
      */
     public function setProperties($properties)
     {
+        if (is_null($properties)) {
+            throw new \InvalidArgumentException('non-nullable properties cannot be null');
+        }
         $this->container['properties'] = $properties;
 
         return $this;
diff --git a/codegen/Crm/Objects/Notes/Model/SimplePublicObjectId.php b/codegen/Crm/Objects/Notes/Model/SimplePublicObjectId.php
index 8f6ad8e2..b6cd476c 100644
--- a/codegen/Crm/Objects/Notes/Model/SimplePublicObjectId.php
+++ b/codegen/Crm/Objects/Notes/Model/SimplePublicObjectId.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -71,6 +71,22 @@ class SimplePublicObjectId implements ModelInterface, ArrayAccess, \JsonSerializ
         'id' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'id' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -91,6 +107,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -176,7 +244,25 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['id'] = $data['id'] ?? null;
+        $this->setIfExists('id', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -225,6 +311,9 @@ public function getId()
      */
     public function setId($id)
     {
+        if (is_null($id)) {
+            throw new \InvalidArgumentException('non-nullable id cannot be null');
+        }
         $this->container['id'] = $id;
 
         return $this;
diff --git a/codegen/Crm/Objects/Notes/Model/SimplePublicObjectInput.php b/codegen/Crm/Objects/Notes/Model/SimplePublicObjectInput.php
index 7d952247..6c1e18ee 100644
--- a/codegen/Crm/Objects/Notes/Model/SimplePublicObjectInput.php
+++ b/codegen/Crm/Objects/Notes/Model/SimplePublicObjectInput.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -71,6 +71,22 @@ class SimplePublicObjectInput implements ModelInterface, ArrayAccess, \JsonSeria
         'properties' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'properties' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -91,6 +107,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -176,7 +244,25 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['properties'] = $data['properties'] ?? null;
+        $this->setIfExists('properties', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -225,6 +311,9 @@ public function getProperties()
      */
     public function setProperties($properties)
     {
+        if (is_null($properties)) {
+            throw new \InvalidArgumentException('non-nullable properties cannot be null');
+        }
         $this->container['properties'] = $properties;
 
         return $this;
diff --git a/codegen/Crm/Objects/Notes/Model/SimplePublicObjectInputForCreate.php b/codegen/Crm/Objects/Notes/Model/SimplePublicObjectInputForCreate.php
index 558ac788..ff1e0a7c 100644
--- a/codegen/Crm/Objects/Notes/Model/SimplePublicObjectInputForCreate.php
+++ b/codegen/Crm/Objects/Notes/Model/SimplePublicObjectInputForCreate.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -73,6 +73,23 @@ class SimplePublicObjectInputForCreate implements ModelInterface, ArrayAccess, \
         'properties' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'associations' => false,
+        'properties' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -93,6 +110,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -181,8 +250,26 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['associations'] = $data['associations'] ?? null;
-        $this->container['properties'] = $data['properties'] ?? null;
+        $this->setIfExists('associations', $data ?? [], null);
+        $this->setIfExists('properties', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -234,6 +321,9 @@ public function getAssociations()
      */
     public function setAssociations($associations)
     {
+        if (is_null($associations)) {
+            throw new \InvalidArgumentException('non-nullable associations cannot be null');
+        }
         $this->container['associations'] = $associations;
 
         return $this;
@@ -258,6 +348,9 @@ public function getProperties()
      */
     public function setProperties($properties)
     {
+        if (is_null($properties)) {
+            throw new \InvalidArgumentException('non-nullable properties cannot be null');
+        }
         $this->container['properties'] = $properties;
 
         return $this;
diff --git a/codegen/Crm/Objects/Notes/Model/SimplePublicObjectWithAssociations.php b/codegen/Crm/Objects/Notes/Model/SimplePublicObjectWithAssociations.php
index 7a03eff1..ea8791f1 100644
--- a/codegen/Crm/Objects/Notes/Model/SimplePublicObjectWithAssociations.php
+++ b/codegen/Crm/Objects/Notes/Model/SimplePublicObjectWithAssociations.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -85,6 +85,29 @@ class SimplePublicObjectWithAssociations implements ModelInterface, ArrayAccess,
         'updated_at' => 'date-time'
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'associations' => false,
+        'created_at' => false,
+        'archived' => false,
+        'archived_at' => false,
+        'properties_with_history' => false,
+        'id' => false,
+        'properties' => false,
+        'updated_at' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -105,6 +128,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -211,14 +286,32 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['associations'] = $data['associations'] ?? null;
-        $this->container['created_at'] = $data['created_at'] ?? null;
-        $this->container['archived'] = $data['archived'] ?? null;
-        $this->container['archived_at'] = $data['archived_at'] ?? null;
-        $this->container['properties_with_history'] = $data['properties_with_history'] ?? null;
-        $this->container['id'] = $data['id'] ?? null;
-        $this->container['properties'] = $data['properties'] ?? null;
-        $this->container['updated_at'] = $data['updated_at'] ?? null;
+        $this->setIfExists('associations', $data ?? [], null);
+        $this->setIfExists('created_at', $data ?? [], null);
+        $this->setIfExists('archived', $data ?? [], null);
+        $this->setIfExists('archived_at', $data ?? [], null);
+        $this->setIfExists('properties_with_history', $data ?? [], null);
+        $this->setIfExists('id', $data ?? [], null);
+        $this->setIfExists('properties', $data ?? [], null);
+        $this->setIfExists('updated_at', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -276,6 +369,9 @@ public function getAssociations()
      */
     public function setAssociations($associations)
     {
+        if (is_null($associations)) {
+            throw new \InvalidArgumentException('non-nullable associations cannot be null');
+        }
         $this->container['associations'] = $associations;
 
         return $this;
@@ -300,6 +396,9 @@ public function getCreatedAt()
      */
     public function setCreatedAt($created_at)
     {
+        if (is_null($created_at)) {
+            throw new \InvalidArgumentException('non-nullable created_at cannot be null');
+        }
         $this->container['created_at'] = $created_at;
 
         return $this;
@@ -324,6 +423,9 @@ public function getArchived()
      */
     public function setArchived($archived)
     {
+        if (is_null($archived)) {
+            throw new \InvalidArgumentException('non-nullable archived cannot be null');
+        }
         $this->container['archived'] = $archived;
 
         return $this;
@@ -348,6 +450,9 @@ public function getArchivedAt()
      */
     public function setArchivedAt($archived_at)
     {
+        if (is_null($archived_at)) {
+            throw new \InvalidArgumentException('non-nullable archived_at cannot be null');
+        }
         $this->container['archived_at'] = $archived_at;
 
         return $this;
@@ -372,6 +477,9 @@ public function getPropertiesWithHistory()
      */
     public function setPropertiesWithHistory($properties_with_history)
     {
+        if (is_null($properties_with_history)) {
+            throw new \InvalidArgumentException('non-nullable properties_with_history cannot be null');
+        }
         $this->container['properties_with_history'] = $properties_with_history;
 
         return $this;
@@ -396,6 +504,9 @@ public function getId()
      */
     public function setId($id)
     {
+        if (is_null($id)) {
+            throw new \InvalidArgumentException('non-nullable id cannot be null');
+        }
         $this->container['id'] = $id;
 
         return $this;
@@ -420,6 +531,9 @@ public function getProperties()
      */
     public function setProperties($properties)
     {
+        if (is_null($properties)) {
+            throw new \InvalidArgumentException('non-nullable properties cannot be null');
+        }
         $this->container['properties'] = $properties;
 
         return $this;
@@ -444,6 +558,9 @@ public function getUpdatedAt()
      */
     public function setUpdatedAt($updated_at)
     {
+        if (is_null($updated_at)) {
+            throw new \InvalidArgumentException('non-nullable updated_at cannot be null');
+        }
         $this->container['updated_at'] = $updated_at;
 
         return $this;
diff --git a/codegen/Crm/Objects/Notes/Model/StandardError.php b/codegen/Crm/Objects/Notes/Model/StandardError.php
index 86177e65..06e03339 100644
--- a/codegen/Crm/Objects/Notes/Model/StandardError.php
+++ b/codegen/Crm/Objects/Notes/Model/StandardError.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -85,6 +85,29 @@ class StandardError implements ModelInterface, ArrayAccess, \JsonSerializable
         'status' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'sub_category' => false,
+        'context' => false,
+        'links' => false,
+        'id' => false,
+        'category' => false,
+        'message' => false,
+        'errors' => false,
+        'status' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -105,6 +128,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -211,14 +286,32 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['sub_category'] = $data['sub_category'] ?? null;
-        $this->container['context'] = $data['context'] ?? null;
-        $this->container['links'] = $data['links'] ?? null;
-        $this->container['id'] = $data['id'] ?? null;
-        $this->container['category'] = $data['category'] ?? null;
-        $this->container['message'] = $data['message'] ?? null;
-        $this->container['errors'] = $data['errors'] ?? null;
-        $this->container['status'] = $data['status'] ?? null;
+        $this->setIfExists('sub_category', $data ?? [], null);
+        $this->setIfExists('context', $data ?? [], null);
+        $this->setIfExists('links', $data ?? [], null);
+        $this->setIfExists('id', $data ?? [], null);
+        $this->setIfExists('category', $data ?? [], null);
+        $this->setIfExists('message', $data ?? [], null);
+        $this->setIfExists('errors', $data ?? [], null);
+        $this->setIfExists('status', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -282,6 +375,9 @@ public function getSubCategory()
      */
     public function setSubCategory($sub_category)
     {
+        if (is_null($sub_category)) {
+            throw new \InvalidArgumentException('non-nullable sub_category cannot be null');
+        }
         $this->container['sub_category'] = $sub_category;
 
         return $this;
@@ -306,6 +402,9 @@ public function getContext()
      */
     public function setContext($context)
     {
+        if (is_null($context)) {
+            throw new \InvalidArgumentException('non-nullable context cannot be null');
+        }
         $this->container['context'] = $context;
 
         return $this;
@@ -330,6 +429,9 @@ public function getLinks()
      */
     public function setLinks($links)
     {
+        if (is_null($links)) {
+            throw new \InvalidArgumentException('non-nullable links cannot be null');
+        }
         $this->container['links'] = $links;
 
         return $this;
@@ -354,6 +456,9 @@ public function getId()
      */
     public function setId($id)
     {
+        if (is_null($id)) {
+            throw new \InvalidArgumentException('non-nullable id cannot be null');
+        }
         $this->container['id'] = $id;
 
         return $this;
@@ -378,6 +483,9 @@ public function getCategory()
      */
     public function setCategory($category)
     {
+        if (is_null($category)) {
+            throw new \InvalidArgumentException('non-nullable category cannot be null');
+        }
         $this->container['category'] = $category;
 
         return $this;
@@ -402,6 +510,9 @@ public function getMessage()
      */
     public function setMessage($message)
     {
+        if (is_null($message)) {
+            throw new \InvalidArgumentException('non-nullable message cannot be null');
+        }
         $this->container['message'] = $message;
 
         return $this;
@@ -426,6 +537,9 @@ public function getErrors()
      */
     public function setErrors($errors)
     {
+        if (is_null($errors)) {
+            throw new \InvalidArgumentException('non-nullable errors cannot be null');
+        }
         $this->container['errors'] = $errors;
 
         return $this;
@@ -450,6 +564,9 @@ public function getStatus()
      */
     public function setStatus($status)
     {
+        if (is_null($status)) {
+            throw new \InvalidArgumentException('non-nullable status cannot be null');
+        }
         $this->container['status'] = $status;
 
         return $this;
diff --git a/codegen/Crm/Objects/Notes/Model/ValueWithTimestamp.php b/codegen/Crm/Objects/Notes/Model/ValueWithTimestamp.php
index d614e311..0db389c6 100644
--- a/codegen/Crm/Objects/Notes/Model/ValueWithTimestamp.php
+++ b/codegen/Crm/Objects/Notes/Model/ValueWithTimestamp.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -81,6 +81,27 @@ class ValueWithTimestamp implements ModelInterface, ArrayAccess, \JsonSerializab
         'timestamp' => 'date-time'
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'source_id' => false,
+        'source_type' => false,
+        'source_label' => false,
+        'updated_by_user_id' => false,
+        'value' => false,
+        'timestamp' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -101,6 +122,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -201,12 +274,30 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['source_id'] = $data['source_id'] ?? null;
-        $this->container['source_type'] = $data['source_type'] ?? null;
-        $this->container['source_label'] = $data['source_label'] ?? null;
-        $this->container['updated_by_user_id'] = $data['updated_by_user_id'] ?? null;
-        $this->container['value'] = $data['value'] ?? null;
-        $this->container['timestamp'] = $data['timestamp'] ?? null;
+        $this->setIfExists('source_id', $data ?? [], null);
+        $this->setIfExists('source_type', $data ?? [], null);
+        $this->setIfExists('source_label', $data ?? [], null);
+        $this->setIfExists('updated_by_user_id', $data ?? [], null);
+        $this->setIfExists('value', $data ?? [], null);
+        $this->setIfExists('timestamp', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -261,6 +352,9 @@ public function getSourceId()
      */
     public function setSourceId($source_id)
     {
+        if (is_null($source_id)) {
+            throw new \InvalidArgumentException('non-nullable source_id cannot be null');
+        }
         $this->container['source_id'] = $source_id;
 
         return $this;
@@ -285,6 +379,9 @@ public function getSourceType()
      */
     public function setSourceType($source_type)
     {
+        if (is_null($source_type)) {
+            throw new \InvalidArgumentException('non-nullable source_type cannot be null');
+        }
         $this->container['source_type'] = $source_type;
 
         return $this;
@@ -309,6 +406,9 @@ public function getSourceLabel()
      */
     public function setSourceLabel($source_label)
     {
+        if (is_null($source_label)) {
+            throw new \InvalidArgumentException('non-nullable source_label cannot be null');
+        }
         $this->container['source_label'] = $source_label;
 
         return $this;
@@ -333,6 +433,9 @@ public function getUpdatedByUserId()
      */
     public function setUpdatedByUserId($updated_by_user_id)
     {
+        if (is_null($updated_by_user_id)) {
+            throw new \InvalidArgumentException('non-nullable updated_by_user_id cannot be null');
+        }
         $this->container['updated_by_user_id'] = $updated_by_user_id;
 
         return $this;
@@ -357,6 +460,9 @@ public function getValue()
      */
     public function setValue($value)
     {
+        if (is_null($value)) {
+            throw new \InvalidArgumentException('non-nullable value cannot be null');
+        }
         $this->container['value'] = $value;
 
         return $this;
@@ -381,6 +487,9 @@ public function getTimestamp()
      */
     public function setTimestamp($timestamp)
     {
+        if (is_null($timestamp)) {
+            throw new \InvalidArgumentException('non-nullable timestamp cannot be null');
+        }
         $this->container['timestamp'] = $timestamp;
 
         return $this;
diff --git a/codegen/Crm/Objects/Notes/ObjectSerializer.php b/codegen/Crm/Objects/Notes/ObjectSerializer.php
index 3bb4b1c0..1320fe46 100644
--- a/codegen/Crm/Objects/Notes/ObjectSerializer.php
+++ b/codegen/Crm/Objects/Notes/ObjectSerializer.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -87,7 +87,7 @@ public static function sanitizeForSerialization($data, $type = null, $format = n
                 foreach ($data::openAPITypes() as $property => $openAPIType) {
                     $getter = $data::getters()[$property];
                     $value = $data->$getter();
-                    if ($value !== null && !in_array($openAPIType, ['\DateTime', '\SplFileObject', 'array', 'bool', 'boolean', 'byte', 'double', 'float', 'int', 'integer', 'mixed', 'number', 'object', 'string', 'void'], true)) {
+                    if ($value !== null && !in_array($openAPIType, ['\DateTime', '\SplFileObject', 'array', 'bool', 'boolean', 'byte', 'float', 'int', 'integer', 'mixed', 'number', 'object', 'string', 'void'], true)) {
                         $callable = [$openAPIType, 'getAllowableEnumValues'];
                         if (is_callable($callable)) {
                             /** array $callable */
@@ -98,7 +98,7 @@ public static function sanitizeForSerialization($data, $type = null, $format = n
                             }
                         }
                     }
-                    if ($value !== null) {
+                    if (($data::isNullable($property) && $data->isNullableSetToNull($property)) || $value !== null) {
                         $values[$data::attributeMap()[$property]] = self::sanitizeForSerialization($value, $openAPIType, $formats[$property]);
                     }
                 }
@@ -157,6 +157,49 @@ public static function toPathValue($value)
         return rawurlencode(self::toString($value));
     }
 
+    /**
+     * Checks if a value is empty, based on its OpenAPI type.
+     *
+     * @param mixed  $value
+     * @param string $openApiType
+     *
+     * @return bool true if $value is empty
+     */
+    private static function isEmptyValue($value, string $openApiType): bool
+    {
+        # If empty() returns false, it is not empty regardless of its type.
+        if (!empty($value)) {
+            return false;
+        }
+
+        # Null is always empty, as we cannot send a real "null" value in a query parameter.
+        if ($value === null) {
+            return true;
+        }
+
+        switch ($openApiType) {
+            # For numeric values, false and '' are considered empty.
+            # This comparison is safe for floating point values, since the previous call to empty() will
+            # filter out values that don't match 0.
+            case 'int':
+            case 'integer':
+                return $value !== 0;
+
+            case 'number':
+            case 'float':
+                return $value !== 0 && $value !== 0.0;
+
+            # For boolean values, '' is considered empty
+            case 'bool':
+            case 'boolean':
+                return !in_array($value, [false, 0], true);
+
+            # For all the other types, any value at this point can be considered empty.
+            default:
+                return true;
+        }
+    }
+
     /**
      * Take query parameter properties and turn it into an array suitable for
      * native http_build_query or GuzzleHttp\Psr7\Query::build.
@@ -178,10 +221,12 @@ public static function toQueryValue(
         bool $explode = true,
         bool $required = true
     ): array {
-        if (
-            empty($value)
-            && ($value !== false || $openApiType !== 'boolean') // if $value === false and $openApiType ==='boolean' it isn't empty
-        ) {
+
+        # Check if we should omit this parameter from the query. This should only happen when:
+        #  - Parameter is NOT required; AND
+        #  - its value is set to a value that is equivalent to "empty", depending on its OpenAPI type. For
+        #    example, 0 as "int" or "boolean" is NOT an empty value.
+        if (self::isEmptyValue($value, $openApiType)) {
             if ($required) {
                 return ["{$paramName}" => ''];
             } else {
@@ -189,6 +234,11 @@ public static function toQueryValue(
             }
         }
 
+        # Handle DateTime objects in query
+        if($openApiType === "\\DateTime" && $value instanceof \DateTime) {
+            return ["{$paramName}" => $value->format(self::$dateTimeFormat)];
+        }
+
         $query = [];
         $value = (in_array($openApiType, ['object', 'array'], true)) ? (array)$value : $value;
 
@@ -395,7 +445,7 @@ public static function deserialize($data, $class, $httpHeaders = null)
         }
 
         if ($class === '\DateTime') {
-            // Some API's return an invalid, empty string as a
+            // Some APIs return an invalid, empty string as a
             // date-time property. DateTime::__construct() will return
             // the current time for empty input which is probably not
             // what is meant. The invalid empty string is probably to
@@ -405,7 +455,7 @@ public static function deserialize($data, $class, $httpHeaders = null)
                 try {
                     return new \DateTime($data);
                 } catch (\Exception $exception) {
-                    // Some API's return a date-time with too high nanosecond
+                    // Some APIs return a date-time with too high nanosecond
                     // precision for php's DateTime to handle.
                     // With provided regexp 6 digits of microseconds saved
                     return new \DateTime(self::sanitizeTimestamp($data));
@@ -441,7 +491,7 @@ public static function deserialize($data, $class, $httpHeaders = null)
         }
 
         /** @psalm-suppress ParadoxicalCondition */
-        if (in_array($class, ['\DateTime', '\SplFileObject', 'array', 'bool', 'boolean', 'byte', 'double', 'float', 'int', 'integer', 'mixed', 'number', 'object', 'string', 'void'], true)) {
+        if (in_array($class, ['\DateTime', '\SplFileObject', 'array', 'bool', 'boolean', 'byte', 'float', 'int', 'integer', 'mixed', 'number', 'object', 'string', 'void'], true)) {
             settype($data, $class);
             return $data;
         }
@@ -455,6 +505,11 @@ public static function deserialize($data, $class, $httpHeaders = null)
             return $data;
         } else {
             $data = is_string($data) ? json_decode($data) : $data;
+
+            if (is_array($data)) {
+                $data = (object)$data;
+            }
+
             // If a discriminator is defined and points to a valid subclass, use it.
             $discriminator = $class::DISCRIMINATOR;
             if (!empty($discriminator) && isset($data->{$discriminator}) && is_string($data->{$discriminator})) {
@@ -469,7 +524,15 @@ public static function deserialize($data, $class, $httpHeaders = null)
             foreach ($instance::openAPITypes() as $property => $type) {
                 $propertySetter = $instance::setters()[$property];
 
-                if (!isset($propertySetter) || !isset($data->{$instance::attributeMap()[$property]})) {
+                if (!isset($propertySetter)) {
+                    continue;
+                }
+
+                if (!isset($data->{$instance::attributeMap()[$property]})) {
+                    if ($instance::isNullable($property)) {
+                        $instance->$propertySetter(null);
+                    }
+
                     continue;
                 }
 
diff --git a/codegen/Crm/Objects/PostalMail/Api/BasicApi.php b/codegen/Crm/Objects/PostalMail/Api/BasicApi.php
index 45579815..67775cd4 100644
--- a/codegen/Crm/Objects/PostalMail/Api/BasicApi.php
+++ b/codegen/Crm/Objects/PostalMail/Api/BasicApi.php
@@ -16,7 +16,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -69,6 +69,25 @@ class BasicApi
      */
     protected $hostIndex;
 
+    /** @var string[] $contentTypes **/
+    public const contentTypes = [
+        'archive' => [
+            'application/json',
+        ],
+        'create' => [
+            'application/json',
+        ],
+        'getById' => [
+            'application/json',
+        ],
+        'getPage' => [
+            'application/json',
+        ],
+        'update' => [
+            'application/json',
+        ],
+    ];
+
     /**
      * @param ClientInterface $client
      * @param Configuration   $config
@@ -121,14 +140,15 @@ public function getConfig()
      * Archive
      *
      * @param  string $postal_mail_id postal_mail_id (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['archive'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\PostalMail\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\PostalMail\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return void
      */
-    public function archive($postal_mail_id)
+    public function archive($postal_mail_id, string $contentType = self::contentTypes['archive'][0])
     {
-        $this->archiveWithHttpInfo($postal_mail_id);
+        $this->archiveWithHttpInfo($postal_mail_id, $contentType);
     }
 
     /**
@@ -137,14 +157,15 @@ public function archive($postal_mail_id)
      * Archive
      *
      * @param  string $postal_mail_id (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['archive'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\PostalMail\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\PostalMail\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return array of null, HTTP status code, HTTP response headers (array of strings)
      */
-    public function archiveWithHttpInfo($postal_mail_id)
+    public function archiveWithHttpInfo($postal_mail_id, string $contentType = self::contentTypes['archive'][0])
     {
-        $request = $this->archiveRequest($postal_mail_id);
+        $request = $this->archiveRequest($postal_mail_id, $contentType);
 
         try {
             $options = $this->createHttpClientOption();
@@ -204,13 +225,14 @@ public function archiveWithHttpInfo($postal_mail_id)
      * Archive
      *
      * @param  string $postal_mail_id (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['archive'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function archiveAsync($postal_mail_id)
+    public function archiveAsync($postal_mail_id, string $contentType = self::contentTypes['archive'][0])
     {
-        return $this->archiveAsyncWithHttpInfo($postal_mail_id)
+        return $this->archiveAsyncWithHttpInfo($postal_mail_id, $contentType)
             ->then(
                 function ($response) {
                     return $response[0];
@@ -224,14 +246,15 @@ function ($response) {
      * Archive
      *
      * @param  string $postal_mail_id (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['archive'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function archiveAsyncWithHttpInfo($postal_mail_id)
+    public function archiveAsyncWithHttpInfo($postal_mail_id, string $contentType = self::contentTypes['archive'][0])
     {
         $returnType = '';
-        $request = $this->archiveRequest($postal_mail_id);
+        $request = $this->archiveRequest($postal_mail_id, $contentType);
 
         return $this->client
             ->sendAsync($request, $this->createHttpClientOption())
@@ -260,12 +283,14 @@ function ($exception) {
      * Create request for operation 'archive'
      *
      * @param  string $postal_mail_id (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['archive'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Psr7\Request
      */
-    public function archiveRequest($postal_mail_id)
+    public function archiveRequest($postal_mail_id, string $contentType = self::contentTypes['archive'][0])
     {
+
         // verify the required parameter 'postal_mail_id' is set
         if ($postal_mail_id === null || (is_array($postal_mail_id) && count($postal_mail_id) === 0)) {
             throw new \InvalidArgumentException(
@@ -273,6 +298,7 @@ public function archiveRequest($postal_mail_id)
             );
         }
 
+
         $resourcePath = '/crm/v3/objects/postal_mail/{postalMailId}';
         $formParams = [];
         $queryParams = [];
@@ -292,16 +318,11 @@ public function archiveRequest($postal_mail_id)
         }
 
 
-        if ($multipart) {
-            $headers = $this->headerSelector->selectHeadersForMultipart(
-                ['*/*']
-            );
-        } else {
-            $headers = $this->headerSelector->selectHeaders(
-                ['*/*'],
-                []
-            );
-        }
+        $headers = $this->headerSelector->selectHeaders(
+            ['*/*', ],
+            $contentType,
+            $multipart
+        );
 
         // for model (json/xml)
         if (count($formParams) > 0) {
@@ -319,9 +340,9 @@ public function archiveRequest($postal_mail_id)
                 // for HTTP post (form)
                 $httpBody = new MultipartStream($multipartContents);
 
-            } elseif ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode($formParams);
-
+            } elseif (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the form parameters
+                $httpBody = \GuzzleHttp\Utils::jsonEncode($formParams);
             } else {
                 // for HTTP post (form)
                 $httpBody = ObjectSerializer::buildQuery($formParams);
@@ -344,10 +365,11 @@ public function archiveRequest($postal_mail_id)
             $headers
         );
 
+        $operationHost = $this->config->getHost();
         $query = ObjectSerializer::buildQuery($queryParams);
         return new Request(
             'DELETE',
-            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
+            $operationHost . $resourcePath . ($query ? "?{$query}" : ''),
             $headers,
             $httpBody
         );
@@ -359,14 +381,15 @@ public function archiveRequest($postal_mail_id)
      * Create
      *
      * @param  \HubSpot\Client\Crm\Objects\PostalMail\Model\SimplePublicObjectInputForCreate $simple_public_object_input_for_create simple_public_object_input_for_create (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['create'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\PostalMail\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\PostalMail\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return \HubSpot\Client\Crm\Objects\PostalMail\Model\SimplePublicObject|\HubSpot\Client\Crm\Objects\PostalMail\Model\Error
      */
-    public function create($simple_public_object_input_for_create)
+    public function create($simple_public_object_input_for_create, string $contentType = self::contentTypes['create'][0])
     {
-        list($response) = $this->createWithHttpInfo($simple_public_object_input_for_create);
+        list($response) = $this->createWithHttpInfo($simple_public_object_input_for_create, $contentType);
         return $response;
     }
 
@@ -376,14 +399,15 @@ public function create($simple_public_object_input_for_create)
      * Create
      *
      * @param  \HubSpot\Client\Crm\Objects\PostalMail\Model\SimplePublicObjectInputForCreate $simple_public_object_input_for_create (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['create'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\PostalMail\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\PostalMail\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return array of \HubSpot\Client\Crm\Objects\PostalMail\Model\SimplePublicObject|\HubSpot\Client\Crm\Objects\PostalMail\Model\Error, HTTP status code, HTTP response headers (array of strings)
      */
-    public function createWithHttpInfo($simple_public_object_input_for_create)
+    public function createWithHttpInfo($simple_public_object_input_for_create, string $contentType = self::contentTypes['create'][0])
     {
-        $request = $this->createRequest($simple_public_object_input_for_create);
+        $request = $this->createRequest($simple_public_object_input_for_create, $contentType);
 
         try {
             $options = $this->createHttpClientOption();
@@ -427,7 +451,19 @@ public function createWithHttpInfo($simple_public_object_input_for_create)
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\PostalMail\Model\SimplePublicObject' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -442,7 +478,19 @@ public function createWithHttpInfo($simple_public_object_input_for_create)
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\PostalMail\Model\Error' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -459,7 +507,19 @@ public function createWithHttpInfo($simple_public_object_input_for_create)
             } else {
                 $content = (string) $response->getBody();
                 if ($returnType !== 'string') {
-                    $content = json_decode($content);
+                    try {
+                        $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                    } catch (\JsonException $exception) {
+                        throw new ApiException(
+                            sprintf(
+                                'Error JSON decoding server response (%s)',
+                                $request->getUri()
+                            ),
+                            $statusCode,
+                            $response->getHeaders(),
+                            $content
+                        );
+                    }
                 }
             }
 
@@ -498,13 +558,14 @@ public function createWithHttpInfo($simple_public_object_input_for_create)
      * Create
      *
      * @param  \HubSpot\Client\Crm\Objects\PostalMail\Model\SimplePublicObjectInputForCreate $simple_public_object_input_for_create (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['create'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function createAsync($simple_public_object_input_for_create)
+    public function createAsync($simple_public_object_input_for_create, string $contentType = self::contentTypes['create'][0])
     {
-        return $this->createAsyncWithHttpInfo($simple_public_object_input_for_create)
+        return $this->createAsyncWithHttpInfo($simple_public_object_input_for_create, $contentType)
             ->then(
                 function ($response) {
                     return $response[0];
@@ -518,14 +579,15 @@ function ($response) {
      * Create
      *
      * @param  \HubSpot\Client\Crm\Objects\PostalMail\Model\SimplePublicObjectInputForCreate $simple_public_object_input_for_create (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['create'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function createAsyncWithHttpInfo($simple_public_object_input_for_create)
+    public function createAsyncWithHttpInfo($simple_public_object_input_for_create, string $contentType = self::contentTypes['create'][0])
     {
         $returnType = '\HubSpot\Client\Crm\Objects\PostalMail\Model\SimplePublicObject';
-        $request = $this->createRequest($simple_public_object_input_for_create);
+        $request = $this->createRequest($simple_public_object_input_for_create, $contentType);
 
         return $this->client
             ->sendAsync($request, $this->createHttpClientOption())
@@ -567,12 +629,14 @@ function ($exception) {
      * Create request for operation 'create'
      *
      * @param  \HubSpot\Client\Crm\Objects\PostalMail\Model\SimplePublicObjectInputForCreate $simple_public_object_input_for_create (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['create'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Psr7\Request
      */
-    public function createRequest($simple_public_object_input_for_create)
+    public function createRequest($simple_public_object_input_for_create, string $contentType = self::contentTypes['create'][0])
     {
+
         // verify the required parameter 'simple_public_object_input_for_create' is set
         if ($simple_public_object_input_for_create === null || (is_array($simple_public_object_input_for_create) && count($simple_public_object_input_for_create) === 0)) {
             throw new \InvalidArgumentException(
@@ -580,6 +644,7 @@ public function createRequest($simple_public_object_input_for_create)
             );
         }
 
+
         $resourcePath = '/crm/v3/objects/postal_mail';
         $formParams = [];
         $queryParams = [];
@@ -591,21 +656,17 @@ public function createRequest($simple_public_object_input_for_create)
 
 
 
-        if ($multipart) {
-            $headers = $this->headerSelector->selectHeadersForMultipart(
-                ['application/json', '*/*']
-            );
-        } else {
-            $headers = $this->headerSelector->selectHeaders(
-                ['application/json', '*/*'],
-                ['application/json']
-            );
-        }
+        $headers = $this->headerSelector->selectHeaders(
+            ['application/json', '*/*', ],
+            $contentType,
+            $multipart
+        );
 
         // for model (json/xml)
         if (isset($simple_public_object_input_for_create)) {
-            if ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode(ObjectSerializer::sanitizeForSerialization($simple_public_object_input_for_create));
+            if (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the body
+                $httpBody = \GuzzleHttp\Utils::jsonEncode(ObjectSerializer::sanitizeForSerialization($simple_public_object_input_for_create));
             } else {
                 $httpBody = $simple_public_object_input_for_create;
             }
@@ -624,9 +685,9 @@ public function createRequest($simple_public_object_input_for_create)
                 // for HTTP post (form)
                 $httpBody = new MultipartStream($multipartContents);
 
-            } elseif ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode($formParams);
-
+            } elseif (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the form parameters
+                $httpBody = \GuzzleHttp\Utils::jsonEncode($formParams);
             } else {
                 // for HTTP post (form)
                 $httpBody = ObjectSerializer::buildQuery($formParams);
@@ -649,10 +710,11 @@ public function createRequest($simple_public_object_input_for_create)
             $headers
         );
 
+        $operationHost = $this->config->getHost();
         $query = ObjectSerializer::buildQuery($queryParams);
         return new Request(
             'POST',
-            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
+            $operationHost . $resourcePath . ($query ? "?{$query}" : ''),
             $headers,
             $httpBody
         );
@@ -669,14 +731,15 @@ public function createRequest($simple_public_object_input_for_create)
      * @param  string[] $associations A comma separated list of object types to retrieve associated IDs for. If any of the specified associations do not exist, they will be ignored. (optional)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
      * @param  string $id_property The name of a property whose values are unique for this object type (optional)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['getById'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\PostalMail\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\PostalMail\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return \HubSpot\Client\Crm\Objects\PostalMail\Model\SimplePublicObjectWithAssociations|\HubSpot\Client\Crm\Objects\PostalMail\Model\Error
      */
-    public function getById($postal_mail_id, $properties = null, $properties_with_history = null, $associations = null, $archived = false, $id_property = null)
+    public function getById($postal_mail_id, $properties = null, $properties_with_history = null, $associations = null, $archived = false, $id_property = null, string $contentType = self::contentTypes['getById'][0])
     {
-        list($response) = $this->getByIdWithHttpInfo($postal_mail_id, $properties, $properties_with_history, $associations, $archived, $id_property);
+        list($response) = $this->getByIdWithHttpInfo($postal_mail_id, $properties, $properties_with_history, $associations, $archived, $id_property, $contentType);
         return $response;
     }
 
@@ -691,14 +754,15 @@ public function getById($postal_mail_id, $properties = null, $properties_with_hi
      * @param  string[] $associations A comma separated list of object types to retrieve associated IDs for. If any of the specified associations do not exist, they will be ignored. (optional)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
      * @param  string $id_property The name of a property whose values are unique for this object type (optional)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['getById'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\PostalMail\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\PostalMail\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return array of \HubSpot\Client\Crm\Objects\PostalMail\Model\SimplePublicObjectWithAssociations|\HubSpot\Client\Crm\Objects\PostalMail\Model\Error, HTTP status code, HTTP response headers (array of strings)
      */
-    public function getByIdWithHttpInfo($postal_mail_id, $properties = null, $properties_with_history = null, $associations = null, $archived = false, $id_property = null)
+    public function getByIdWithHttpInfo($postal_mail_id, $properties = null, $properties_with_history = null, $associations = null, $archived = false, $id_property = null, string $contentType = self::contentTypes['getById'][0])
     {
-        $request = $this->getByIdRequest($postal_mail_id, $properties, $properties_with_history, $associations, $archived, $id_property);
+        $request = $this->getByIdRequest($postal_mail_id, $properties, $properties_with_history, $associations, $archived, $id_property, $contentType);
 
         try {
             $options = $this->createHttpClientOption();
@@ -742,7 +806,19 @@ public function getByIdWithHttpInfo($postal_mail_id, $properties = null, $proper
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\PostalMail\Model\SimplePublicObjectWithAssociations' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -757,7 +833,19 @@ public function getByIdWithHttpInfo($postal_mail_id, $properties = null, $proper
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\PostalMail\Model\Error' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -774,7 +862,19 @@ public function getByIdWithHttpInfo($postal_mail_id, $properties = null, $proper
             } else {
                 $content = (string) $response->getBody();
                 if ($returnType !== 'string') {
-                    $content = json_decode($content);
+                    try {
+                        $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                    } catch (\JsonException $exception) {
+                        throw new ApiException(
+                            sprintf(
+                                'Error JSON decoding server response (%s)',
+                                $request->getUri()
+                            ),
+                            $statusCode,
+                            $response->getHeaders(),
+                            $content
+                        );
+                    }
                 }
             }
 
@@ -818,13 +918,14 @@ public function getByIdWithHttpInfo($postal_mail_id, $properties = null, $proper
      * @param  string[] $associations A comma separated list of object types to retrieve associated IDs for. If any of the specified associations do not exist, they will be ignored. (optional)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
      * @param  string $id_property The name of a property whose values are unique for this object type (optional)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['getById'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function getByIdAsync($postal_mail_id, $properties = null, $properties_with_history = null, $associations = null, $archived = false, $id_property = null)
+    public function getByIdAsync($postal_mail_id, $properties = null, $properties_with_history = null, $associations = null, $archived = false, $id_property = null, string $contentType = self::contentTypes['getById'][0])
     {
-        return $this->getByIdAsyncWithHttpInfo($postal_mail_id, $properties, $properties_with_history, $associations, $archived, $id_property)
+        return $this->getByIdAsyncWithHttpInfo($postal_mail_id, $properties, $properties_with_history, $associations, $archived, $id_property, $contentType)
             ->then(
                 function ($response) {
                     return $response[0];
@@ -843,14 +944,15 @@ function ($response) {
      * @param  string[] $associations A comma separated list of object types to retrieve associated IDs for. If any of the specified associations do not exist, they will be ignored. (optional)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
      * @param  string $id_property The name of a property whose values are unique for this object type (optional)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['getById'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function getByIdAsyncWithHttpInfo($postal_mail_id, $properties = null, $properties_with_history = null, $associations = null, $archived = false, $id_property = null)
+    public function getByIdAsyncWithHttpInfo($postal_mail_id, $properties = null, $properties_with_history = null, $associations = null, $archived = false, $id_property = null, string $contentType = self::contentTypes['getById'][0])
     {
         $returnType = '\HubSpot\Client\Crm\Objects\PostalMail\Model\SimplePublicObjectWithAssociations';
-        $request = $this->getByIdRequest($postal_mail_id, $properties, $properties_with_history, $associations, $archived, $id_property);
+        $request = $this->getByIdRequest($postal_mail_id, $properties, $properties_with_history, $associations, $archived, $id_property, $contentType);
 
         return $this->client
             ->sendAsync($request, $this->createHttpClientOption())
@@ -897,12 +999,14 @@ function ($exception) {
      * @param  string[] $associations A comma separated list of object types to retrieve associated IDs for. If any of the specified associations do not exist, they will be ignored. (optional)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
      * @param  string $id_property The name of a property whose values are unique for this object type (optional)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['getById'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Psr7\Request
      */
-    public function getByIdRequest($postal_mail_id, $properties = null, $properties_with_history = null, $associations = null, $archived = false, $id_property = null)
+    public function getByIdRequest($postal_mail_id, $properties = null, $properties_with_history = null, $associations = null, $archived = false, $id_property = null, string $contentType = self::contentTypes['getById'][0])
     {
+
         // verify the required parameter 'postal_mail_id' is set
         if ($postal_mail_id === null || (is_array($postal_mail_id) && count($postal_mail_id) === 0)) {
             throw new \InvalidArgumentException(
@@ -910,6 +1014,12 @@ public function getByIdRequest($postal_mail_id, $properties = null, $properties_
             );
         }
 
+
+
+
+
+
+
         $resourcePath = '/crm/v3/objects/postal_mail/{postalMailId}';
         $formParams = [];
         $queryParams = [];
@@ -974,16 +1084,11 @@ public function getByIdRequest($postal_mail_id, $properties = null, $properties_
         }
 
 
-        if ($multipart) {
-            $headers = $this->headerSelector->selectHeadersForMultipart(
-                ['application/json', '*/*']
-            );
-        } else {
-            $headers = $this->headerSelector->selectHeaders(
-                ['application/json', '*/*'],
-                []
-            );
-        }
+        $headers = $this->headerSelector->selectHeaders(
+            ['application/json', '*/*', ],
+            $contentType,
+            $multipart
+        );
 
         // for model (json/xml)
         if (count($formParams) > 0) {
@@ -1001,9 +1106,9 @@ public function getByIdRequest($postal_mail_id, $properties = null, $properties_
                 // for HTTP post (form)
                 $httpBody = new MultipartStream($multipartContents);
 
-            } elseif ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode($formParams);
-
+            } elseif (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the form parameters
+                $httpBody = \GuzzleHttp\Utils::jsonEncode($formParams);
             } else {
                 // for HTTP post (form)
                 $httpBody = ObjectSerializer::buildQuery($formParams);
@@ -1026,10 +1131,11 @@ public function getByIdRequest($postal_mail_id, $properties = null, $properties_
             $headers
         );
 
+        $operationHost = $this->config->getHost();
         $query = ObjectSerializer::buildQuery($queryParams);
         return new Request(
             'GET',
-            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
+            $operationHost . $resourcePath . ($query ? "?{$query}" : ''),
             $headers,
             $httpBody
         );
@@ -1046,14 +1152,15 @@ public function getByIdRequest($postal_mail_id, $properties = null, $properties_
      * @param  string[] $properties_with_history A comma separated list of the properties to be returned along with their history of previous values. If any of the specified properties are not present on the requested object(s), they will be ignored. Usage of this parameter will reduce the maximum number of objects that can be read by a single request. (optional)
      * @param  string[] $associations A comma separated list of object types to retrieve associated IDs for. If any of the specified associations do not exist, they will be ignored. (optional)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['getPage'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\PostalMail\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\PostalMail\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return \HubSpot\Client\Crm\Objects\PostalMail\Model\CollectionResponseSimplePublicObjectWithAssociationsForwardPaging|\HubSpot\Client\Crm\Objects\PostalMail\Model\Error
      */
-    public function getPage($limit = 10, $after = null, $properties = null, $properties_with_history = null, $associations = null, $archived = false)
+    public function getPage($limit = 10, $after = null, $properties = null, $properties_with_history = null, $associations = null, $archived = false, string $contentType = self::contentTypes['getPage'][0])
     {
-        list($response) = $this->getPageWithHttpInfo($limit, $after, $properties, $properties_with_history, $associations, $archived);
+        list($response) = $this->getPageWithHttpInfo($limit, $after, $properties, $properties_with_history, $associations, $archived, $contentType);
         return $response;
     }
 
@@ -1068,14 +1175,15 @@ public function getPage($limit = 10, $after = null, $properties = null, $propert
      * @param  string[] $properties_with_history A comma separated list of the properties to be returned along with their history of previous values. If any of the specified properties are not present on the requested object(s), they will be ignored. Usage of this parameter will reduce the maximum number of objects that can be read by a single request. (optional)
      * @param  string[] $associations A comma separated list of object types to retrieve associated IDs for. If any of the specified associations do not exist, they will be ignored. (optional)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['getPage'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\PostalMail\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\PostalMail\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return array of \HubSpot\Client\Crm\Objects\PostalMail\Model\CollectionResponseSimplePublicObjectWithAssociationsForwardPaging|\HubSpot\Client\Crm\Objects\PostalMail\Model\Error, HTTP status code, HTTP response headers (array of strings)
      */
-    public function getPageWithHttpInfo($limit = 10, $after = null, $properties = null, $properties_with_history = null, $associations = null, $archived = false)
+    public function getPageWithHttpInfo($limit = 10, $after = null, $properties = null, $properties_with_history = null, $associations = null, $archived = false, string $contentType = self::contentTypes['getPage'][0])
     {
-        $request = $this->getPageRequest($limit, $after, $properties, $properties_with_history, $associations, $archived);
+        $request = $this->getPageRequest($limit, $after, $properties, $properties_with_history, $associations, $archived, $contentType);
 
         try {
             $options = $this->createHttpClientOption();
@@ -1119,7 +1227,19 @@ public function getPageWithHttpInfo($limit = 10, $after = null, $properties = nu
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\PostalMail\Model\CollectionResponseSimplePublicObjectWithAssociationsForwardPaging' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -1134,7 +1254,19 @@ public function getPageWithHttpInfo($limit = 10, $after = null, $properties = nu
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\PostalMail\Model\Error' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -1151,7 +1283,19 @@ public function getPageWithHttpInfo($limit = 10, $after = null, $properties = nu
             } else {
                 $content = (string) $response->getBody();
                 if ($returnType !== 'string') {
-                    $content = json_decode($content);
+                    try {
+                        $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                    } catch (\JsonException $exception) {
+                        throw new ApiException(
+                            sprintf(
+                                'Error JSON decoding server response (%s)',
+                                $request->getUri()
+                            ),
+                            $statusCode,
+                            $response->getHeaders(),
+                            $content
+                        );
+                    }
                 }
             }
 
@@ -1195,13 +1339,14 @@ public function getPageWithHttpInfo($limit = 10, $after = null, $properties = nu
      * @param  string[] $properties_with_history A comma separated list of the properties to be returned along with their history of previous values. If any of the specified properties are not present on the requested object(s), they will be ignored. Usage of this parameter will reduce the maximum number of objects that can be read by a single request. (optional)
      * @param  string[] $associations A comma separated list of object types to retrieve associated IDs for. If any of the specified associations do not exist, they will be ignored. (optional)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['getPage'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function getPageAsync($limit = 10, $after = null, $properties = null, $properties_with_history = null, $associations = null, $archived = false)
+    public function getPageAsync($limit = 10, $after = null, $properties = null, $properties_with_history = null, $associations = null, $archived = false, string $contentType = self::contentTypes['getPage'][0])
     {
-        return $this->getPageAsyncWithHttpInfo($limit, $after, $properties, $properties_with_history, $associations, $archived)
+        return $this->getPageAsyncWithHttpInfo($limit, $after, $properties, $properties_with_history, $associations, $archived, $contentType)
             ->then(
                 function ($response) {
                     return $response[0];
@@ -1220,14 +1365,15 @@ function ($response) {
      * @param  string[] $properties_with_history A comma separated list of the properties to be returned along with their history of previous values. If any of the specified properties are not present on the requested object(s), they will be ignored. Usage of this parameter will reduce the maximum number of objects that can be read by a single request. (optional)
      * @param  string[] $associations A comma separated list of object types to retrieve associated IDs for. If any of the specified associations do not exist, they will be ignored. (optional)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['getPage'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function getPageAsyncWithHttpInfo($limit = 10, $after = null, $properties = null, $properties_with_history = null, $associations = null, $archived = false)
+    public function getPageAsyncWithHttpInfo($limit = 10, $after = null, $properties = null, $properties_with_history = null, $associations = null, $archived = false, string $contentType = self::contentTypes['getPage'][0])
     {
         $returnType = '\HubSpot\Client\Crm\Objects\PostalMail\Model\CollectionResponseSimplePublicObjectWithAssociationsForwardPaging';
-        $request = $this->getPageRequest($limit, $after, $properties, $properties_with_history, $associations, $archived);
+        $request = $this->getPageRequest($limit, $after, $properties, $properties_with_history, $associations, $archived, $contentType);
 
         return $this->client
             ->sendAsync($request, $this->createHttpClientOption())
@@ -1274,13 +1420,21 @@ function ($exception) {
      * @param  string[] $properties_with_history A comma separated list of the properties to be returned along with their history of previous values. If any of the specified properties are not present on the requested object(s), they will be ignored. Usage of this parameter will reduce the maximum number of objects that can be read by a single request. (optional)
      * @param  string[] $associations A comma separated list of object types to retrieve associated IDs for. If any of the specified associations do not exist, they will be ignored. (optional)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['getPage'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Psr7\Request
      */
-    public function getPageRequest($limit = 10, $after = null, $properties = null, $properties_with_history = null, $associations = null, $archived = false)
+    public function getPageRequest($limit = 10, $after = null, $properties = null, $properties_with_history = null, $associations = null, $archived = false, string $contentType = self::contentTypes['getPage'][0])
     {
 
+
+
+
+
+
+
+
         $resourcePath = '/crm/v3/objects/postal_mail';
         $formParams = [];
         $queryParams = [];
@@ -1346,16 +1500,11 @@ public function getPageRequest($limit = 10, $after = null, $properties = null, $
 
 
 
-        if ($multipart) {
-            $headers = $this->headerSelector->selectHeadersForMultipart(
-                ['application/json', '*/*']
-            );
-        } else {
-            $headers = $this->headerSelector->selectHeaders(
-                ['application/json', '*/*'],
-                []
-            );
-        }
+        $headers = $this->headerSelector->selectHeaders(
+            ['application/json', '*/*', ],
+            $contentType,
+            $multipart
+        );
 
         // for model (json/xml)
         if (count($formParams) > 0) {
@@ -1373,9 +1522,9 @@ public function getPageRequest($limit = 10, $after = null, $properties = null, $
                 // for HTTP post (form)
                 $httpBody = new MultipartStream($multipartContents);
 
-            } elseif ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode($formParams);
-
+            } elseif (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the form parameters
+                $httpBody = \GuzzleHttp\Utils::jsonEncode($formParams);
             } else {
                 // for HTTP post (form)
                 $httpBody = ObjectSerializer::buildQuery($formParams);
@@ -1398,10 +1547,11 @@ public function getPageRequest($limit = 10, $after = null, $properties = null, $
             $headers
         );
 
+        $operationHost = $this->config->getHost();
         $query = ObjectSerializer::buildQuery($queryParams);
         return new Request(
             'GET',
-            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
+            $operationHost . $resourcePath . ($query ? "?{$query}" : ''),
             $headers,
             $httpBody
         );
@@ -1415,14 +1565,15 @@ public function getPageRequest($limit = 10, $after = null, $properties = null, $
      * @param  string $postal_mail_id postal_mail_id (required)
      * @param  \HubSpot\Client\Crm\Objects\PostalMail\Model\SimplePublicObjectInput $simple_public_object_input simple_public_object_input (required)
      * @param  string $id_property The name of a property whose values are unique for this object type (optional)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['update'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\PostalMail\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\PostalMail\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return \HubSpot\Client\Crm\Objects\PostalMail\Model\SimplePublicObject|\HubSpot\Client\Crm\Objects\PostalMail\Model\Error
      */
-    public function update($postal_mail_id, $simple_public_object_input, $id_property = null)
+    public function update($postal_mail_id, $simple_public_object_input, $id_property = null, string $contentType = self::contentTypes['update'][0])
     {
-        list($response) = $this->updateWithHttpInfo($postal_mail_id, $simple_public_object_input, $id_property);
+        list($response) = $this->updateWithHttpInfo($postal_mail_id, $simple_public_object_input, $id_property, $contentType);
         return $response;
     }
 
@@ -1434,14 +1585,15 @@ public function update($postal_mail_id, $simple_public_object_input, $id_propert
      * @param  string $postal_mail_id (required)
      * @param  \HubSpot\Client\Crm\Objects\PostalMail\Model\SimplePublicObjectInput $simple_public_object_input (required)
      * @param  string $id_property The name of a property whose values are unique for this object type (optional)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['update'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\PostalMail\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\PostalMail\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return array of \HubSpot\Client\Crm\Objects\PostalMail\Model\SimplePublicObject|\HubSpot\Client\Crm\Objects\PostalMail\Model\Error, HTTP status code, HTTP response headers (array of strings)
      */
-    public function updateWithHttpInfo($postal_mail_id, $simple_public_object_input, $id_property = null)
+    public function updateWithHttpInfo($postal_mail_id, $simple_public_object_input, $id_property = null, string $contentType = self::contentTypes['update'][0])
     {
-        $request = $this->updateRequest($postal_mail_id, $simple_public_object_input, $id_property);
+        $request = $this->updateRequest($postal_mail_id, $simple_public_object_input, $id_property, $contentType);
 
         try {
             $options = $this->createHttpClientOption();
@@ -1485,7 +1637,19 @@ public function updateWithHttpInfo($postal_mail_id, $simple_public_object_input,
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\PostalMail\Model\SimplePublicObject' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -1500,7 +1664,19 @@ public function updateWithHttpInfo($postal_mail_id, $simple_public_object_input,
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\PostalMail\Model\Error' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -1517,7 +1693,19 @@ public function updateWithHttpInfo($postal_mail_id, $simple_public_object_input,
             } else {
                 $content = (string) $response->getBody();
                 if ($returnType !== 'string') {
-                    $content = json_decode($content);
+                    try {
+                        $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                    } catch (\JsonException $exception) {
+                        throw new ApiException(
+                            sprintf(
+                                'Error JSON decoding server response (%s)',
+                                $request->getUri()
+                            ),
+                            $statusCode,
+                            $response->getHeaders(),
+                            $content
+                        );
+                    }
                 }
             }
 
@@ -1558,13 +1746,14 @@ public function updateWithHttpInfo($postal_mail_id, $simple_public_object_input,
      * @param  string $postal_mail_id (required)
      * @param  \HubSpot\Client\Crm\Objects\PostalMail\Model\SimplePublicObjectInput $simple_public_object_input (required)
      * @param  string $id_property The name of a property whose values are unique for this object type (optional)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['update'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function updateAsync($postal_mail_id, $simple_public_object_input, $id_property = null)
+    public function updateAsync($postal_mail_id, $simple_public_object_input, $id_property = null, string $contentType = self::contentTypes['update'][0])
     {
-        return $this->updateAsyncWithHttpInfo($postal_mail_id, $simple_public_object_input, $id_property)
+        return $this->updateAsyncWithHttpInfo($postal_mail_id, $simple_public_object_input, $id_property, $contentType)
             ->then(
                 function ($response) {
                     return $response[0];
@@ -1580,14 +1769,15 @@ function ($response) {
      * @param  string $postal_mail_id (required)
      * @param  \HubSpot\Client\Crm\Objects\PostalMail\Model\SimplePublicObjectInput $simple_public_object_input (required)
      * @param  string $id_property The name of a property whose values are unique for this object type (optional)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['update'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function updateAsyncWithHttpInfo($postal_mail_id, $simple_public_object_input, $id_property = null)
+    public function updateAsyncWithHttpInfo($postal_mail_id, $simple_public_object_input, $id_property = null, string $contentType = self::contentTypes['update'][0])
     {
         $returnType = '\HubSpot\Client\Crm\Objects\PostalMail\Model\SimplePublicObject';
-        $request = $this->updateRequest($postal_mail_id, $simple_public_object_input, $id_property);
+        $request = $this->updateRequest($postal_mail_id, $simple_public_object_input, $id_property, $contentType);
 
         return $this->client
             ->sendAsync($request, $this->createHttpClientOption())
@@ -1631,18 +1821,21 @@ function ($exception) {
      * @param  string $postal_mail_id (required)
      * @param  \HubSpot\Client\Crm\Objects\PostalMail\Model\SimplePublicObjectInput $simple_public_object_input (required)
      * @param  string $id_property The name of a property whose values are unique for this object type (optional)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['update'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Psr7\Request
      */
-    public function updateRequest($postal_mail_id, $simple_public_object_input, $id_property = null)
+    public function updateRequest($postal_mail_id, $simple_public_object_input, $id_property = null, string $contentType = self::contentTypes['update'][0])
     {
+
         // verify the required parameter 'postal_mail_id' is set
         if ($postal_mail_id === null || (is_array($postal_mail_id) && count($postal_mail_id) === 0)) {
             throw new \InvalidArgumentException(
                 'Missing the required parameter $postal_mail_id when calling update'
             );
         }
+
         // verify the required parameter 'simple_public_object_input' is set
         if ($simple_public_object_input === null || (is_array($simple_public_object_input) && count($simple_public_object_input) === 0)) {
             throw new \InvalidArgumentException(
@@ -1650,6 +1843,8 @@ public function updateRequest($postal_mail_id, $simple_public_object_input, $id_
             );
         }
 
+
+
         $resourcePath = '/crm/v3/objects/postal_mail/{postalMailId}';
         $formParams = [];
         $queryParams = [];
@@ -1678,21 +1873,17 @@ public function updateRequest($postal_mail_id, $simple_public_object_input, $id_
         }
 
 
-        if ($multipart) {
-            $headers = $this->headerSelector->selectHeadersForMultipart(
-                ['application/json', '*/*']
-            );
-        } else {
-            $headers = $this->headerSelector->selectHeaders(
-                ['application/json', '*/*'],
-                ['application/json']
-            );
-        }
+        $headers = $this->headerSelector->selectHeaders(
+            ['application/json', '*/*', ],
+            $contentType,
+            $multipart
+        );
 
         // for model (json/xml)
         if (isset($simple_public_object_input)) {
-            if ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode(ObjectSerializer::sanitizeForSerialization($simple_public_object_input));
+            if (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the body
+                $httpBody = \GuzzleHttp\Utils::jsonEncode(ObjectSerializer::sanitizeForSerialization($simple_public_object_input));
             } else {
                 $httpBody = $simple_public_object_input;
             }
@@ -1711,9 +1902,9 @@ public function updateRequest($postal_mail_id, $simple_public_object_input, $id_
                 // for HTTP post (form)
                 $httpBody = new MultipartStream($multipartContents);
 
-            } elseif ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode($formParams);
-
+            } elseif (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the form parameters
+                $httpBody = \GuzzleHttp\Utils::jsonEncode($formParams);
             } else {
                 // for HTTP post (form)
                 $httpBody = ObjectSerializer::buildQuery($formParams);
@@ -1736,10 +1927,11 @@ public function updateRequest($postal_mail_id, $simple_public_object_input, $id_
             $headers
         );
 
+        $operationHost = $this->config->getHost();
         $query = ObjectSerializer::buildQuery($queryParams);
         return new Request(
             'PATCH',
-            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
+            $operationHost . $resourcePath . ($query ? "?{$query}" : ''),
             $headers,
             $httpBody
         );
diff --git a/codegen/Crm/Objects/PostalMail/Api/BatchApi.php b/codegen/Crm/Objects/PostalMail/Api/BatchApi.php
index dad30c8b..dc241935 100644
--- a/codegen/Crm/Objects/PostalMail/Api/BatchApi.php
+++ b/codegen/Crm/Objects/PostalMail/Api/BatchApi.php
@@ -16,7 +16,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -69,6 +69,22 @@ class BatchApi
      */
     protected $hostIndex;
 
+    /** @var string[] $contentTypes **/
+    public const contentTypes = [
+        'archive' => [
+            'application/json',
+        ],
+        'create' => [
+            'application/json',
+        ],
+        'read' => [
+            'application/json',
+        ],
+        'update' => [
+            'application/json',
+        ],
+    ];
+
     /**
      * @param ClientInterface $client
      * @param Configuration   $config
@@ -121,14 +137,15 @@ public function getConfig()
      * Archive a batch of postal mail by ID
      *
      * @param  \HubSpot\Client\Crm\Objects\PostalMail\Model\BatchInputSimplePublicObjectId $batch_input_simple_public_object_id batch_input_simple_public_object_id (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['archive'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\PostalMail\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\PostalMail\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return void
      */
-    public function archive($batch_input_simple_public_object_id)
+    public function archive($batch_input_simple_public_object_id, string $contentType = self::contentTypes['archive'][0])
     {
-        $this->archiveWithHttpInfo($batch_input_simple_public_object_id);
+        $this->archiveWithHttpInfo($batch_input_simple_public_object_id, $contentType);
     }
 
     /**
@@ -137,14 +154,15 @@ public function archive($batch_input_simple_public_object_id)
      * Archive a batch of postal mail by ID
      *
      * @param  \HubSpot\Client\Crm\Objects\PostalMail\Model\BatchInputSimplePublicObjectId $batch_input_simple_public_object_id (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['archive'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\PostalMail\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\PostalMail\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return array of null, HTTP status code, HTTP response headers (array of strings)
      */
-    public function archiveWithHttpInfo($batch_input_simple_public_object_id)
+    public function archiveWithHttpInfo($batch_input_simple_public_object_id, string $contentType = self::contentTypes['archive'][0])
     {
-        $request = $this->archiveRequest($batch_input_simple_public_object_id);
+        $request = $this->archiveRequest($batch_input_simple_public_object_id, $contentType);
 
         try {
             $options = $this->createHttpClientOption();
@@ -204,13 +222,14 @@ public function archiveWithHttpInfo($batch_input_simple_public_object_id)
      * Archive a batch of postal mail by ID
      *
      * @param  \HubSpot\Client\Crm\Objects\PostalMail\Model\BatchInputSimplePublicObjectId $batch_input_simple_public_object_id (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['archive'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function archiveAsync($batch_input_simple_public_object_id)
+    public function archiveAsync($batch_input_simple_public_object_id, string $contentType = self::contentTypes['archive'][0])
     {
-        return $this->archiveAsyncWithHttpInfo($batch_input_simple_public_object_id)
+        return $this->archiveAsyncWithHttpInfo($batch_input_simple_public_object_id, $contentType)
             ->then(
                 function ($response) {
                     return $response[0];
@@ -224,14 +243,15 @@ function ($response) {
      * Archive a batch of postal mail by ID
      *
      * @param  \HubSpot\Client\Crm\Objects\PostalMail\Model\BatchInputSimplePublicObjectId $batch_input_simple_public_object_id (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['archive'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function archiveAsyncWithHttpInfo($batch_input_simple_public_object_id)
+    public function archiveAsyncWithHttpInfo($batch_input_simple_public_object_id, string $contentType = self::contentTypes['archive'][0])
     {
         $returnType = '';
-        $request = $this->archiveRequest($batch_input_simple_public_object_id);
+        $request = $this->archiveRequest($batch_input_simple_public_object_id, $contentType);
 
         return $this->client
             ->sendAsync($request, $this->createHttpClientOption())
@@ -260,12 +280,14 @@ function ($exception) {
      * Create request for operation 'archive'
      *
      * @param  \HubSpot\Client\Crm\Objects\PostalMail\Model\BatchInputSimplePublicObjectId $batch_input_simple_public_object_id (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['archive'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Psr7\Request
      */
-    public function archiveRequest($batch_input_simple_public_object_id)
+    public function archiveRequest($batch_input_simple_public_object_id, string $contentType = self::contentTypes['archive'][0])
     {
+
         // verify the required parameter 'batch_input_simple_public_object_id' is set
         if ($batch_input_simple_public_object_id === null || (is_array($batch_input_simple_public_object_id) && count($batch_input_simple_public_object_id) === 0)) {
             throw new \InvalidArgumentException(
@@ -273,6 +295,7 @@ public function archiveRequest($batch_input_simple_public_object_id)
             );
         }
 
+
         $resourcePath = '/crm/v3/objects/postal_mail/batch/archive';
         $formParams = [];
         $queryParams = [];
@@ -284,21 +307,17 @@ public function archiveRequest($batch_input_simple_public_object_id)
 
 
 
-        if ($multipart) {
-            $headers = $this->headerSelector->selectHeadersForMultipart(
-                ['*/*']
-            );
-        } else {
-            $headers = $this->headerSelector->selectHeaders(
-                ['*/*'],
-                ['application/json']
-            );
-        }
+        $headers = $this->headerSelector->selectHeaders(
+            ['*/*', ],
+            $contentType,
+            $multipart
+        );
 
         // for model (json/xml)
         if (isset($batch_input_simple_public_object_id)) {
-            if ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode(ObjectSerializer::sanitizeForSerialization($batch_input_simple_public_object_id));
+            if (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the body
+                $httpBody = \GuzzleHttp\Utils::jsonEncode(ObjectSerializer::sanitizeForSerialization($batch_input_simple_public_object_id));
             } else {
                 $httpBody = $batch_input_simple_public_object_id;
             }
@@ -317,9 +336,9 @@ public function archiveRequest($batch_input_simple_public_object_id)
                 // for HTTP post (form)
                 $httpBody = new MultipartStream($multipartContents);
 
-            } elseif ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode($formParams);
-
+            } elseif (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the form parameters
+                $httpBody = \GuzzleHttp\Utils::jsonEncode($formParams);
             } else {
                 // for HTTP post (form)
                 $httpBody = ObjectSerializer::buildQuery($formParams);
@@ -342,10 +361,11 @@ public function archiveRequest($batch_input_simple_public_object_id)
             $headers
         );
 
+        $operationHost = $this->config->getHost();
         $query = ObjectSerializer::buildQuery($queryParams);
         return new Request(
             'POST',
-            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
+            $operationHost . $resourcePath . ($query ? "?{$query}" : ''),
             $headers,
             $httpBody
         );
@@ -357,14 +377,15 @@ public function archiveRequest($batch_input_simple_public_object_id)
      * Create a batch of postal mail
      *
      * @param  \HubSpot\Client\Crm\Objects\PostalMail\Model\BatchInputSimplePublicObjectInputForCreate $batch_input_simple_public_object_input_for_create batch_input_simple_public_object_input_for_create (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['create'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\PostalMail\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\PostalMail\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return \HubSpot\Client\Crm\Objects\PostalMail\Model\BatchResponseSimplePublicObject|\HubSpot\Client\Crm\Objects\PostalMail\Model\BatchResponseSimplePublicObjectWithErrors|\HubSpot\Client\Crm\Objects\PostalMail\Model\Error
      */
-    public function create($batch_input_simple_public_object_input_for_create)
+    public function create($batch_input_simple_public_object_input_for_create, string $contentType = self::contentTypes['create'][0])
     {
-        list($response) = $this->createWithHttpInfo($batch_input_simple_public_object_input_for_create);
+        list($response) = $this->createWithHttpInfo($batch_input_simple_public_object_input_for_create, $contentType);
         return $response;
     }
 
@@ -374,14 +395,15 @@ public function create($batch_input_simple_public_object_input_for_create)
      * Create a batch of postal mail
      *
      * @param  \HubSpot\Client\Crm\Objects\PostalMail\Model\BatchInputSimplePublicObjectInputForCreate $batch_input_simple_public_object_input_for_create (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['create'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\PostalMail\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\PostalMail\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return array of \HubSpot\Client\Crm\Objects\PostalMail\Model\BatchResponseSimplePublicObject|\HubSpot\Client\Crm\Objects\PostalMail\Model\BatchResponseSimplePublicObjectWithErrors|\HubSpot\Client\Crm\Objects\PostalMail\Model\Error, HTTP status code, HTTP response headers (array of strings)
      */
-    public function createWithHttpInfo($batch_input_simple_public_object_input_for_create)
+    public function createWithHttpInfo($batch_input_simple_public_object_input_for_create, string $contentType = self::contentTypes['create'][0])
     {
-        $request = $this->createRequest($batch_input_simple_public_object_input_for_create);
+        $request = $this->createRequest($batch_input_simple_public_object_input_for_create, $contentType);
 
         try {
             $options = $this->createHttpClientOption();
@@ -425,7 +447,19 @@ public function createWithHttpInfo($batch_input_simple_public_object_input_for_c
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\PostalMail\Model\BatchResponseSimplePublicObject' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -440,7 +474,19 @@ public function createWithHttpInfo($batch_input_simple_public_object_input_for_c
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\PostalMail\Model\BatchResponseSimplePublicObjectWithErrors' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -455,7 +501,19 @@ public function createWithHttpInfo($batch_input_simple_public_object_input_for_c
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\PostalMail\Model\Error' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -472,7 +530,19 @@ public function createWithHttpInfo($batch_input_simple_public_object_input_for_c
             } else {
                 $content = (string) $response->getBody();
                 if ($returnType !== 'string') {
-                    $content = json_decode($content);
+                    try {
+                        $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                    } catch (\JsonException $exception) {
+                        throw new ApiException(
+                            sprintf(
+                                'Error JSON decoding server response (%s)',
+                                $request->getUri()
+                            ),
+                            $statusCode,
+                            $response->getHeaders(),
+                            $content
+                        );
+                    }
                 }
             }
 
@@ -519,13 +589,14 @@ public function createWithHttpInfo($batch_input_simple_public_object_input_for_c
      * Create a batch of postal mail
      *
      * @param  \HubSpot\Client\Crm\Objects\PostalMail\Model\BatchInputSimplePublicObjectInputForCreate $batch_input_simple_public_object_input_for_create (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['create'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function createAsync($batch_input_simple_public_object_input_for_create)
+    public function createAsync($batch_input_simple_public_object_input_for_create, string $contentType = self::contentTypes['create'][0])
     {
-        return $this->createAsyncWithHttpInfo($batch_input_simple_public_object_input_for_create)
+        return $this->createAsyncWithHttpInfo($batch_input_simple_public_object_input_for_create, $contentType)
             ->then(
                 function ($response) {
                     return $response[0];
@@ -539,14 +610,15 @@ function ($response) {
      * Create a batch of postal mail
      *
      * @param  \HubSpot\Client\Crm\Objects\PostalMail\Model\BatchInputSimplePublicObjectInputForCreate $batch_input_simple_public_object_input_for_create (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['create'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function createAsyncWithHttpInfo($batch_input_simple_public_object_input_for_create)
+    public function createAsyncWithHttpInfo($batch_input_simple_public_object_input_for_create, string $contentType = self::contentTypes['create'][0])
     {
         $returnType = '\HubSpot\Client\Crm\Objects\PostalMail\Model\BatchResponseSimplePublicObject';
-        $request = $this->createRequest($batch_input_simple_public_object_input_for_create);
+        $request = $this->createRequest($batch_input_simple_public_object_input_for_create, $contentType);
 
         return $this->client
             ->sendAsync($request, $this->createHttpClientOption())
@@ -588,12 +660,14 @@ function ($exception) {
      * Create request for operation 'create'
      *
      * @param  \HubSpot\Client\Crm\Objects\PostalMail\Model\BatchInputSimplePublicObjectInputForCreate $batch_input_simple_public_object_input_for_create (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['create'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Psr7\Request
      */
-    public function createRequest($batch_input_simple_public_object_input_for_create)
+    public function createRequest($batch_input_simple_public_object_input_for_create, string $contentType = self::contentTypes['create'][0])
     {
+
         // verify the required parameter 'batch_input_simple_public_object_input_for_create' is set
         if ($batch_input_simple_public_object_input_for_create === null || (is_array($batch_input_simple_public_object_input_for_create) && count($batch_input_simple_public_object_input_for_create) === 0)) {
             throw new \InvalidArgumentException(
@@ -601,6 +675,7 @@ public function createRequest($batch_input_simple_public_object_input_for_create
             );
         }
 
+
         $resourcePath = '/crm/v3/objects/postal_mail/batch/create';
         $formParams = [];
         $queryParams = [];
@@ -612,21 +687,17 @@ public function createRequest($batch_input_simple_public_object_input_for_create
 
 
 
-        if ($multipart) {
-            $headers = $this->headerSelector->selectHeadersForMultipart(
-                ['application/json', '*/*']
-            );
-        } else {
-            $headers = $this->headerSelector->selectHeaders(
-                ['application/json', '*/*'],
-                ['application/json']
-            );
-        }
+        $headers = $this->headerSelector->selectHeaders(
+            ['application/json', '*/*', ],
+            $contentType,
+            $multipart
+        );
 
         // for model (json/xml)
         if (isset($batch_input_simple_public_object_input_for_create)) {
-            if ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode(ObjectSerializer::sanitizeForSerialization($batch_input_simple_public_object_input_for_create));
+            if (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the body
+                $httpBody = \GuzzleHttp\Utils::jsonEncode(ObjectSerializer::sanitizeForSerialization($batch_input_simple_public_object_input_for_create));
             } else {
                 $httpBody = $batch_input_simple_public_object_input_for_create;
             }
@@ -645,9 +716,9 @@ public function createRequest($batch_input_simple_public_object_input_for_create
                 // for HTTP post (form)
                 $httpBody = new MultipartStream($multipartContents);
 
-            } elseif ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode($formParams);
-
+            } elseif (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the form parameters
+                $httpBody = \GuzzleHttp\Utils::jsonEncode($formParams);
             } else {
                 // for HTTP post (form)
                 $httpBody = ObjectSerializer::buildQuery($formParams);
@@ -670,10 +741,11 @@ public function createRequest($batch_input_simple_public_object_input_for_create
             $headers
         );
 
+        $operationHost = $this->config->getHost();
         $query = ObjectSerializer::buildQuery($queryParams);
         return new Request(
             'POST',
-            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
+            $operationHost . $resourcePath . ($query ? "?{$query}" : ''),
             $headers,
             $httpBody
         );
@@ -686,14 +758,15 @@ public function createRequest($batch_input_simple_public_object_input_for_create
      *
      * @param  \HubSpot\Client\Crm\Objects\PostalMail\Model\BatchReadInputSimplePublicObjectId $batch_read_input_simple_public_object_id batch_read_input_simple_public_object_id (required)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['read'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\PostalMail\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\PostalMail\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return \HubSpot\Client\Crm\Objects\PostalMail\Model\BatchResponseSimplePublicObject|\HubSpot\Client\Crm\Objects\PostalMail\Model\BatchResponseSimplePublicObjectWithErrors|\HubSpot\Client\Crm\Objects\PostalMail\Model\Error
      */
-    public function read($batch_read_input_simple_public_object_id, $archived = false)
+    public function read($batch_read_input_simple_public_object_id, $archived = false, string $contentType = self::contentTypes['read'][0])
     {
-        list($response) = $this->readWithHttpInfo($batch_read_input_simple_public_object_id, $archived);
+        list($response) = $this->readWithHttpInfo($batch_read_input_simple_public_object_id, $archived, $contentType);
         return $response;
     }
 
@@ -704,14 +777,15 @@ public function read($batch_read_input_simple_public_object_id, $archived = fals
      *
      * @param  \HubSpot\Client\Crm\Objects\PostalMail\Model\BatchReadInputSimplePublicObjectId $batch_read_input_simple_public_object_id (required)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['read'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\PostalMail\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\PostalMail\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return array of \HubSpot\Client\Crm\Objects\PostalMail\Model\BatchResponseSimplePublicObject|\HubSpot\Client\Crm\Objects\PostalMail\Model\BatchResponseSimplePublicObjectWithErrors|\HubSpot\Client\Crm\Objects\PostalMail\Model\Error, HTTP status code, HTTP response headers (array of strings)
      */
-    public function readWithHttpInfo($batch_read_input_simple_public_object_id, $archived = false)
+    public function readWithHttpInfo($batch_read_input_simple_public_object_id, $archived = false, string $contentType = self::contentTypes['read'][0])
     {
-        $request = $this->readRequest($batch_read_input_simple_public_object_id, $archived);
+        $request = $this->readRequest($batch_read_input_simple_public_object_id, $archived, $contentType);
 
         try {
             $options = $this->createHttpClientOption();
@@ -755,7 +829,19 @@ public function readWithHttpInfo($batch_read_input_simple_public_object_id, $arc
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\PostalMail\Model\BatchResponseSimplePublicObject' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -770,7 +856,19 @@ public function readWithHttpInfo($batch_read_input_simple_public_object_id, $arc
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\PostalMail\Model\BatchResponseSimplePublicObjectWithErrors' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -785,7 +883,19 @@ public function readWithHttpInfo($batch_read_input_simple_public_object_id, $arc
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\PostalMail\Model\Error' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -802,7 +912,19 @@ public function readWithHttpInfo($batch_read_input_simple_public_object_id, $arc
             } else {
                 $content = (string) $response->getBody();
                 if ($returnType !== 'string') {
-                    $content = json_decode($content);
+                    try {
+                        $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                    } catch (\JsonException $exception) {
+                        throw new ApiException(
+                            sprintf(
+                                'Error JSON decoding server response (%s)',
+                                $request->getUri()
+                            ),
+                            $statusCode,
+                            $response->getHeaders(),
+                            $content
+                        );
+                    }
                 }
             }
 
@@ -850,13 +972,14 @@ public function readWithHttpInfo($batch_read_input_simple_public_object_id, $arc
      *
      * @param  \HubSpot\Client\Crm\Objects\PostalMail\Model\BatchReadInputSimplePublicObjectId $batch_read_input_simple_public_object_id (required)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['read'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function readAsync($batch_read_input_simple_public_object_id, $archived = false)
+    public function readAsync($batch_read_input_simple_public_object_id, $archived = false, string $contentType = self::contentTypes['read'][0])
     {
-        return $this->readAsyncWithHttpInfo($batch_read_input_simple_public_object_id, $archived)
+        return $this->readAsyncWithHttpInfo($batch_read_input_simple_public_object_id, $archived, $contentType)
             ->then(
                 function ($response) {
                     return $response[0];
@@ -871,14 +994,15 @@ function ($response) {
      *
      * @param  \HubSpot\Client\Crm\Objects\PostalMail\Model\BatchReadInputSimplePublicObjectId $batch_read_input_simple_public_object_id (required)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['read'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function readAsyncWithHttpInfo($batch_read_input_simple_public_object_id, $archived = false)
+    public function readAsyncWithHttpInfo($batch_read_input_simple_public_object_id, $archived = false, string $contentType = self::contentTypes['read'][0])
     {
         $returnType = '\HubSpot\Client\Crm\Objects\PostalMail\Model\BatchResponseSimplePublicObject';
-        $request = $this->readRequest($batch_read_input_simple_public_object_id, $archived);
+        $request = $this->readRequest($batch_read_input_simple_public_object_id, $archived, $contentType);
 
         return $this->client
             ->sendAsync($request, $this->createHttpClientOption())
@@ -921,12 +1045,14 @@ function ($exception) {
      *
      * @param  \HubSpot\Client\Crm\Objects\PostalMail\Model\BatchReadInputSimplePublicObjectId $batch_read_input_simple_public_object_id (required)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['read'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Psr7\Request
      */
-    public function readRequest($batch_read_input_simple_public_object_id, $archived = false)
+    public function readRequest($batch_read_input_simple_public_object_id, $archived = false, string $contentType = self::contentTypes['read'][0])
     {
+
         // verify the required parameter 'batch_read_input_simple_public_object_id' is set
         if ($batch_read_input_simple_public_object_id === null || (is_array($batch_read_input_simple_public_object_id) && count($batch_read_input_simple_public_object_id) === 0)) {
             throw new \InvalidArgumentException(
@@ -934,6 +1060,8 @@ public function readRequest($batch_read_input_simple_public_object_id, $archived
             );
         }
 
+
+
         $resourcePath = '/crm/v3/objects/postal_mail/batch/read';
         $formParams = [];
         $queryParams = [];
@@ -954,21 +1082,17 @@ public function readRequest($batch_read_input_simple_public_object_id, $archived
 
 
 
-        if ($multipart) {
-            $headers = $this->headerSelector->selectHeadersForMultipart(
-                ['application/json', '*/*']
-            );
-        } else {
-            $headers = $this->headerSelector->selectHeaders(
-                ['application/json', '*/*'],
-                ['application/json']
-            );
-        }
+        $headers = $this->headerSelector->selectHeaders(
+            ['application/json', '*/*', ],
+            $contentType,
+            $multipart
+        );
 
         // for model (json/xml)
         if (isset($batch_read_input_simple_public_object_id)) {
-            if ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode(ObjectSerializer::sanitizeForSerialization($batch_read_input_simple_public_object_id));
+            if (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the body
+                $httpBody = \GuzzleHttp\Utils::jsonEncode(ObjectSerializer::sanitizeForSerialization($batch_read_input_simple_public_object_id));
             } else {
                 $httpBody = $batch_read_input_simple_public_object_id;
             }
@@ -987,9 +1111,9 @@ public function readRequest($batch_read_input_simple_public_object_id, $archived
                 // for HTTP post (form)
                 $httpBody = new MultipartStream($multipartContents);
 
-            } elseif ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode($formParams);
-
+            } elseif (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the form parameters
+                $httpBody = \GuzzleHttp\Utils::jsonEncode($formParams);
             } else {
                 // for HTTP post (form)
                 $httpBody = ObjectSerializer::buildQuery($formParams);
@@ -1012,10 +1136,11 @@ public function readRequest($batch_read_input_simple_public_object_id, $archived
             $headers
         );
 
+        $operationHost = $this->config->getHost();
         $query = ObjectSerializer::buildQuery($queryParams);
         return new Request(
             'POST',
-            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
+            $operationHost . $resourcePath . ($query ? "?{$query}" : ''),
             $headers,
             $httpBody
         );
@@ -1027,14 +1152,15 @@ public function readRequest($batch_read_input_simple_public_object_id, $archived
      * Update a batch of postal mail
      *
      * @param  \HubSpot\Client\Crm\Objects\PostalMail\Model\BatchInputSimplePublicObjectBatchInput $batch_input_simple_public_object_batch_input batch_input_simple_public_object_batch_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['update'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\PostalMail\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\PostalMail\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return \HubSpot\Client\Crm\Objects\PostalMail\Model\BatchResponseSimplePublicObject|\HubSpot\Client\Crm\Objects\PostalMail\Model\BatchResponseSimplePublicObjectWithErrors|\HubSpot\Client\Crm\Objects\PostalMail\Model\Error
      */
-    public function update($batch_input_simple_public_object_batch_input)
+    public function update($batch_input_simple_public_object_batch_input, string $contentType = self::contentTypes['update'][0])
     {
-        list($response) = $this->updateWithHttpInfo($batch_input_simple_public_object_batch_input);
+        list($response) = $this->updateWithHttpInfo($batch_input_simple_public_object_batch_input, $contentType);
         return $response;
     }
 
@@ -1044,14 +1170,15 @@ public function update($batch_input_simple_public_object_batch_input)
      * Update a batch of postal mail
      *
      * @param  \HubSpot\Client\Crm\Objects\PostalMail\Model\BatchInputSimplePublicObjectBatchInput $batch_input_simple_public_object_batch_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['update'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\PostalMail\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\PostalMail\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return array of \HubSpot\Client\Crm\Objects\PostalMail\Model\BatchResponseSimplePublicObject|\HubSpot\Client\Crm\Objects\PostalMail\Model\BatchResponseSimplePublicObjectWithErrors|\HubSpot\Client\Crm\Objects\PostalMail\Model\Error, HTTP status code, HTTP response headers (array of strings)
      */
-    public function updateWithHttpInfo($batch_input_simple_public_object_batch_input)
+    public function updateWithHttpInfo($batch_input_simple_public_object_batch_input, string $contentType = self::contentTypes['update'][0])
     {
-        $request = $this->updateRequest($batch_input_simple_public_object_batch_input);
+        $request = $this->updateRequest($batch_input_simple_public_object_batch_input, $contentType);
 
         try {
             $options = $this->createHttpClientOption();
@@ -1095,7 +1222,19 @@ public function updateWithHttpInfo($batch_input_simple_public_object_batch_input
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\PostalMail\Model\BatchResponseSimplePublicObject' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -1110,7 +1249,19 @@ public function updateWithHttpInfo($batch_input_simple_public_object_batch_input
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\PostalMail\Model\BatchResponseSimplePublicObjectWithErrors' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -1125,7 +1276,19 @@ public function updateWithHttpInfo($batch_input_simple_public_object_batch_input
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\PostalMail\Model\Error' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -1142,7 +1305,19 @@ public function updateWithHttpInfo($batch_input_simple_public_object_batch_input
             } else {
                 $content = (string) $response->getBody();
                 if ($returnType !== 'string') {
-                    $content = json_decode($content);
+                    try {
+                        $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                    } catch (\JsonException $exception) {
+                        throw new ApiException(
+                            sprintf(
+                                'Error JSON decoding server response (%s)',
+                                $request->getUri()
+                            ),
+                            $statusCode,
+                            $response->getHeaders(),
+                            $content
+                        );
+                    }
                 }
             }
 
@@ -1189,13 +1364,14 @@ public function updateWithHttpInfo($batch_input_simple_public_object_batch_input
      * Update a batch of postal mail
      *
      * @param  \HubSpot\Client\Crm\Objects\PostalMail\Model\BatchInputSimplePublicObjectBatchInput $batch_input_simple_public_object_batch_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['update'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function updateAsync($batch_input_simple_public_object_batch_input)
+    public function updateAsync($batch_input_simple_public_object_batch_input, string $contentType = self::contentTypes['update'][0])
     {
-        return $this->updateAsyncWithHttpInfo($batch_input_simple_public_object_batch_input)
+        return $this->updateAsyncWithHttpInfo($batch_input_simple_public_object_batch_input, $contentType)
             ->then(
                 function ($response) {
                     return $response[0];
@@ -1209,14 +1385,15 @@ function ($response) {
      * Update a batch of postal mail
      *
      * @param  \HubSpot\Client\Crm\Objects\PostalMail\Model\BatchInputSimplePublicObjectBatchInput $batch_input_simple_public_object_batch_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['update'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function updateAsyncWithHttpInfo($batch_input_simple_public_object_batch_input)
+    public function updateAsyncWithHttpInfo($batch_input_simple_public_object_batch_input, string $contentType = self::contentTypes['update'][0])
     {
         $returnType = '\HubSpot\Client\Crm\Objects\PostalMail\Model\BatchResponseSimplePublicObject';
-        $request = $this->updateRequest($batch_input_simple_public_object_batch_input);
+        $request = $this->updateRequest($batch_input_simple_public_object_batch_input, $contentType);
 
         return $this->client
             ->sendAsync($request, $this->createHttpClientOption())
@@ -1258,12 +1435,14 @@ function ($exception) {
      * Create request for operation 'update'
      *
      * @param  \HubSpot\Client\Crm\Objects\PostalMail\Model\BatchInputSimplePublicObjectBatchInput $batch_input_simple_public_object_batch_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['update'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Psr7\Request
      */
-    public function updateRequest($batch_input_simple_public_object_batch_input)
+    public function updateRequest($batch_input_simple_public_object_batch_input, string $contentType = self::contentTypes['update'][0])
     {
+
         // verify the required parameter 'batch_input_simple_public_object_batch_input' is set
         if ($batch_input_simple_public_object_batch_input === null || (is_array($batch_input_simple_public_object_batch_input) && count($batch_input_simple_public_object_batch_input) === 0)) {
             throw new \InvalidArgumentException(
@@ -1271,6 +1450,7 @@ public function updateRequest($batch_input_simple_public_object_batch_input)
             );
         }
 
+
         $resourcePath = '/crm/v3/objects/postal_mail/batch/update';
         $formParams = [];
         $queryParams = [];
@@ -1282,21 +1462,17 @@ public function updateRequest($batch_input_simple_public_object_batch_input)
 
 
 
-        if ($multipart) {
-            $headers = $this->headerSelector->selectHeadersForMultipart(
-                ['application/json', '*/*']
-            );
-        } else {
-            $headers = $this->headerSelector->selectHeaders(
-                ['application/json', '*/*'],
-                ['application/json']
-            );
-        }
+        $headers = $this->headerSelector->selectHeaders(
+            ['application/json', '*/*', ],
+            $contentType,
+            $multipart
+        );
 
         // for model (json/xml)
         if (isset($batch_input_simple_public_object_batch_input)) {
-            if ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode(ObjectSerializer::sanitizeForSerialization($batch_input_simple_public_object_batch_input));
+            if (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the body
+                $httpBody = \GuzzleHttp\Utils::jsonEncode(ObjectSerializer::sanitizeForSerialization($batch_input_simple_public_object_batch_input));
             } else {
                 $httpBody = $batch_input_simple_public_object_batch_input;
             }
@@ -1315,9 +1491,9 @@ public function updateRequest($batch_input_simple_public_object_batch_input)
                 // for HTTP post (form)
                 $httpBody = new MultipartStream($multipartContents);
 
-            } elseif ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode($formParams);
-
+            } elseif (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the form parameters
+                $httpBody = \GuzzleHttp\Utils::jsonEncode($formParams);
             } else {
                 // for HTTP post (form)
                 $httpBody = ObjectSerializer::buildQuery($formParams);
@@ -1340,10 +1516,11 @@ public function updateRequest($batch_input_simple_public_object_batch_input)
             $headers
         );
 
+        $operationHost = $this->config->getHost();
         $query = ObjectSerializer::buildQuery($queryParams);
         return new Request(
             'POST',
-            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
+            $operationHost . $resourcePath . ($query ? "?{$query}" : ''),
             $headers,
             $httpBody
         );
diff --git a/codegen/Crm/Objects/PostalMail/Api/GDPRApi.php b/codegen/Crm/Objects/PostalMail/Api/GDPRApi.php
index fb2f58b8..31677093 100644
--- a/codegen/Crm/Objects/PostalMail/Api/GDPRApi.php
+++ b/codegen/Crm/Objects/PostalMail/Api/GDPRApi.php
@@ -16,7 +16,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -69,6 +69,13 @@ class GDPRApi
      */
     protected $hostIndex;
 
+    /** @var string[] $contentTypes **/
+    public const contentTypes = [
+        'purge' => [
+            'application/json',
+        ],
+    ];
+
     /**
      * @param ClientInterface $client
      * @param Configuration   $config
@@ -121,14 +128,15 @@ public function getConfig()
      * GDPR DELETE
      *
      * @param  \HubSpot\Client\Crm\Objects\PostalMail\Model\PublicGdprDeleteInput $public_gdpr_delete_input public_gdpr_delete_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['purge'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\PostalMail\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\PostalMail\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return void
      */
-    public function purge($public_gdpr_delete_input)
+    public function purge($public_gdpr_delete_input, string $contentType = self::contentTypes['purge'][0])
     {
-        $this->purgeWithHttpInfo($public_gdpr_delete_input);
+        $this->purgeWithHttpInfo($public_gdpr_delete_input, $contentType);
     }
 
     /**
@@ -137,14 +145,15 @@ public function purge($public_gdpr_delete_input)
      * GDPR DELETE
      *
      * @param  \HubSpot\Client\Crm\Objects\PostalMail\Model\PublicGdprDeleteInput $public_gdpr_delete_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['purge'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\PostalMail\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\PostalMail\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return array of null, HTTP status code, HTTP response headers (array of strings)
      */
-    public function purgeWithHttpInfo($public_gdpr_delete_input)
+    public function purgeWithHttpInfo($public_gdpr_delete_input, string $contentType = self::contentTypes['purge'][0])
     {
-        $request = $this->purgeRequest($public_gdpr_delete_input);
+        $request = $this->purgeRequest($public_gdpr_delete_input, $contentType);
 
         try {
             $options = $this->createHttpClientOption();
@@ -204,13 +213,14 @@ public function purgeWithHttpInfo($public_gdpr_delete_input)
      * GDPR DELETE
      *
      * @param  \HubSpot\Client\Crm\Objects\PostalMail\Model\PublicGdprDeleteInput $public_gdpr_delete_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['purge'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function purgeAsync($public_gdpr_delete_input)
+    public function purgeAsync($public_gdpr_delete_input, string $contentType = self::contentTypes['purge'][0])
     {
-        return $this->purgeAsyncWithHttpInfo($public_gdpr_delete_input)
+        return $this->purgeAsyncWithHttpInfo($public_gdpr_delete_input, $contentType)
             ->then(
                 function ($response) {
                     return $response[0];
@@ -224,14 +234,15 @@ function ($response) {
      * GDPR DELETE
      *
      * @param  \HubSpot\Client\Crm\Objects\PostalMail\Model\PublicGdprDeleteInput $public_gdpr_delete_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['purge'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function purgeAsyncWithHttpInfo($public_gdpr_delete_input)
+    public function purgeAsyncWithHttpInfo($public_gdpr_delete_input, string $contentType = self::contentTypes['purge'][0])
     {
         $returnType = '';
-        $request = $this->purgeRequest($public_gdpr_delete_input);
+        $request = $this->purgeRequest($public_gdpr_delete_input, $contentType);
 
         return $this->client
             ->sendAsync($request, $this->createHttpClientOption())
@@ -260,12 +271,14 @@ function ($exception) {
      * Create request for operation 'purge'
      *
      * @param  \HubSpot\Client\Crm\Objects\PostalMail\Model\PublicGdprDeleteInput $public_gdpr_delete_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['purge'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Psr7\Request
      */
-    public function purgeRequest($public_gdpr_delete_input)
+    public function purgeRequest($public_gdpr_delete_input, string $contentType = self::contentTypes['purge'][0])
     {
+
         // verify the required parameter 'public_gdpr_delete_input' is set
         if ($public_gdpr_delete_input === null || (is_array($public_gdpr_delete_input) && count($public_gdpr_delete_input) === 0)) {
             throw new \InvalidArgumentException(
@@ -273,6 +286,7 @@ public function purgeRequest($public_gdpr_delete_input)
             );
         }
 
+
         $resourcePath = '/crm/v3/objects/postal_mail/gdpr-delete';
         $formParams = [];
         $queryParams = [];
@@ -284,21 +298,17 @@ public function purgeRequest($public_gdpr_delete_input)
 
 
 
-        if ($multipart) {
-            $headers = $this->headerSelector->selectHeadersForMultipart(
-                ['*/*']
-            );
-        } else {
-            $headers = $this->headerSelector->selectHeaders(
-                ['*/*'],
-                ['application/json']
-            );
-        }
+        $headers = $this->headerSelector->selectHeaders(
+            ['*/*', ],
+            $contentType,
+            $multipart
+        );
 
         // for model (json/xml)
         if (isset($public_gdpr_delete_input)) {
-            if ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode(ObjectSerializer::sanitizeForSerialization($public_gdpr_delete_input));
+            if (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the body
+                $httpBody = \GuzzleHttp\Utils::jsonEncode(ObjectSerializer::sanitizeForSerialization($public_gdpr_delete_input));
             } else {
                 $httpBody = $public_gdpr_delete_input;
             }
@@ -317,9 +327,9 @@ public function purgeRequest($public_gdpr_delete_input)
                 // for HTTP post (form)
                 $httpBody = new MultipartStream($multipartContents);
 
-            } elseif ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode($formParams);
-
+            } elseif (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the form parameters
+                $httpBody = \GuzzleHttp\Utils::jsonEncode($formParams);
             } else {
                 // for HTTP post (form)
                 $httpBody = ObjectSerializer::buildQuery($formParams);
@@ -342,10 +352,11 @@ public function purgeRequest($public_gdpr_delete_input)
             $headers
         );
 
+        $operationHost = $this->config->getHost();
         $query = ObjectSerializer::buildQuery($queryParams);
         return new Request(
             'POST',
-            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
+            $operationHost . $resourcePath . ($query ? "?{$query}" : ''),
             $headers,
             $httpBody
         );
diff --git a/codegen/Crm/Objects/PostalMail/Api/PublicObjectApi.php b/codegen/Crm/Objects/PostalMail/Api/PublicObjectApi.php
index 933312ca..5d3d89cd 100644
--- a/codegen/Crm/Objects/PostalMail/Api/PublicObjectApi.php
+++ b/codegen/Crm/Objects/PostalMail/Api/PublicObjectApi.php
@@ -16,7 +16,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -69,6 +69,13 @@ class PublicObjectApi
      */
     protected $hostIndex;
 
+    /** @var string[] $contentTypes **/
+    public const contentTypes = [
+        'merge' => [
+            'application/json',
+        ],
+    ];
+
     /**
      * @param ClientInterface $client
      * @param Configuration   $config
@@ -121,14 +128,15 @@ public function getConfig()
      * Merge two postal mail with same type
      *
      * @param  \HubSpot\Client\Crm\Objects\PostalMail\Model\PublicMergeInput $public_merge_input public_merge_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['merge'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\PostalMail\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\PostalMail\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return \HubSpot\Client\Crm\Objects\PostalMail\Model\SimplePublicObject|\HubSpot\Client\Crm\Objects\PostalMail\Model\Error
      */
-    public function merge($public_merge_input)
+    public function merge($public_merge_input, string $contentType = self::contentTypes['merge'][0])
     {
-        list($response) = $this->mergeWithHttpInfo($public_merge_input);
+        list($response) = $this->mergeWithHttpInfo($public_merge_input, $contentType);
         return $response;
     }
 
@@ -138,14 +146,15 @@ public function merge($public_merge_input)
      * Merge two postal mail with same type
      *
      * @param  \HubSpot\Client\Crm\Objects\PostalMail\Model\PublicMergeInput $public_merge_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['merge'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\PostalMail\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\PostalMail\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return array of \HubSpot\Client\Crm\Objects\PostalMail\Model\SimplePublicObject|\HubSpot\Client\Crm\Objects\PostalMail\Model\Error, HTTP status code, HTTP response headers (array of strings)
      */
-    public function mergeWithHttpInfo($public_merge_input)
+    public function mergeWithHttpInfo($public_merge_input, string $contentType = self::contentTypes['merge'][0])
     {
-        $request = $this->mergeRequest($public_merge_input);
+        $request = $this->mergeRequest($public_merge_input, $contentType);
 
         try {
             $options = $this->createHttpClientOption();
@@ -189,7 +198,19 @@ public function mergeWithHttpInfo($public_merge_input)
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\PostalMail\Model\SimplePublicObject' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -204,7 +225,19 @@ public function mergeWithHttpInfo($public_merge_input)
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\PostalMail\Model\Error' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -221,7 +254,19 @@ public function mergeWithHttpInfo($public_merge_input)
             } else {
                 $content = (string) $response->getBody();
                 if ($returnType !== 'string') {
-                    $content = json_decode($content);
+                    try {
+                        $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                    } catch (\JsonException $exception) {
+                        throw new ApiException(
+                            sprintf(
+                                'Error JSON decoding server response (%s)',
+                                $request->getUri()
+                            ),
+                            $statusCode,
+                            $response->getHeaders(),
+                            $content
+                        );
+                    }
                 }
             }
 
@@ -260,13 +305,14 @@ public function mergeWithHttpInfo($public_merge_input)
      * Merge two postal mail with same type
      *
      * @param  \HubSpot\Client\Crm\Objects\PostalMail\Model\PublicMergeInput $public_merge_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['merge'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function mergeAsync($public_merge_input)
+    public function mergeAsync($public_merge_input, string $contentType = self::contentTypes['merge'][0])
     {
-        return $this->mergeAsyncWithHttpInfo($public_merge_input)
+        return $this->mergeAsyncWithHttpInfo($public_merge_input, $contentType)
             ->then(
                 function ($response) {
                     return $response[0];
@@ -280,14 +326,15 @@ function ($response) {
      * Merge two postal mail with same type
      *
      * @param  \HubSpot\Client\Crm\Objects\PostalMail\Model\PublicMergeInput $public_merge_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['merge'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function mergeAsyncWithHttpInfo($public_merge_input)
+    public function mergeAsyncWithHttpInfo($public_merge_input, string $contentType = self::contentTypes['merge'][0])
     {
         $returnType = '\HubSpot\Client\Crm\Objects\PostalMail\Model\SimplePublicObject';
-        $request = $this->mergeRequest($public_merge_input);
+        $request = $this->mergeRequest($public_merge_input, $contentType);
 
         return $this->client
             ->sendAsync($request, $this->createHttpClientOption())
@@ -329,12 +376,14 @@ function ($exception) {
      * Create request for operation 'merge'
      *
      * @param  \HubSpot\Client\Crm\Objects\PostalMail\Model\PublicMergeInput $public_merge_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['merge'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Psr7\Request
      */
-    public function mergeRequest($public_merge_input)
+    public function mergeRequest($public_merge_input, string $contentType = self::contentTypes['merge'][0])
     {
+
         // verify the required parameter 'public_merge_input' is set
         if ($public_merge_input === null || (is_array($public_merge_input) && count($public_merge_input) === 0)) {
             throw new \InvalidArgumentException(
@@ -342,6 +391,7 @@ public function mergeRequest($public_merge_input)
             );
         }
 
+
         $resourcePath = '/crm/v3/objects/postal_mail/merge';
         $formParams = [];
         $queryParams = [];
@@ -353,21 +403,17 @@ public function mergeRequest($public_merge_input)
 
 
 
-        if ($multipart) {
-            $headers = $this->headerSelector->selectHeadersForMultipart(
-                ['application/json', '*/*']
-            );
-        } else {
-            $headers = $this->headerSelector->selectHeaders(
-                ['application/json', '*/*'],
-                ['application/json']
-            );
-        }
+        $headers = $this->headerSelector->selectHeaders(
+            ['application/json', '*/*', ],
+            $contentType,
+            $multipart
+        );
 
         // for model (json/xml)
         if (isset($public_merge_input)) {
-            if ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode(ObjectSerializer::sanitizeForSerialization($public_merge_input));
+            if (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the body
+                $httpBody = \GuzzleHttp\Utils::jsonEncode(ObjectSerializer::sanitizeForSerialization($public_merge_input));
             } else {
                 $httpBody = $public_merge_input;
             }
@@ -386,9 +432,9 @@ public function mergeRequest($public_merge_input)
                 // for HTTP post (form)
                 $httpBody = new MultipartStream($multipartContents);
 
-            } elseif ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode($formParams);
-
+            } elseif (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the form parameters
+                $httpBody = \GuzzleHttp\Utils::jsonEncode($formParams);
             } else {
                 // for HTTP post (form)
                 $httpBody = ObjectSerializer::buildQuery($formParams);
@@ -411,10 +457,11 @@ public function mergeRequest($public_merge_input)
             $headers
         );
 
+        $operationHost = $this->config->getHost();
         $query = ObjectSerializer::buildQuery($queryParams);
         return new Request(
             'POST',
-            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
+            $operationHost . $resourcePath . ($query ? "?{$query}" : ''),
             $headers,
             $httpBody
         );
diff --git a/codegen/Crm/Objects/PostalMail/Api/SearchApi.php b/codegen/Crm/Objects/PostalMail/Api/SearchApi.php
index 3d3abedc..a57e599b 100644
--- a/codegen/Crm/Objects/PostalMail/Api/SearchApi.php
+++ b/codegen/Crm/Objects/PostalMail/Api/SearchApi.php
@@ -16,7 +16,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -69,6 +69,13 @@ class SearchApi
      */
     protected $hostIndex;
 
+    /** @var string[] $contentTypes **/
+    public const contentTypes = [
+        'doSearch' => [
+            'application/json',
+        ],
+    ];
+
     /**
      * @param ClientInterface $client
      * @param Configuration   $config
@@ -119,14 +126,15 @@ public function getConfig()
      * Operation doSearch
      *
      * @param  \HubSpot\Client\Crm\Objects\PostalMail\Model\PublicObjectSearchRequest $public_object_search_request public_object_search_request (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['doSearch'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\PostalMail\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\PostalMail\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return \HubSpot\Client\Crm\Objects\PostalMail\Model\CollectionResponseWithTotalSimplePublicObjectForwardPaging|\HubSpot\Client\Crm\Objects\PostalMail\Model\Error
      */
-    public function doSearch($public_object_search_request)
+    public function doSearch($public_object_search_request, string $contentType = self::contentTypes['doSearch'][0])
     {
-        list($response) = $this->doSearchWithHttpInfo($public_object_search_request);
+        list($response) = $this->doSearchWithHttpInfo($public_object_search_request, $contentType);
         return $response;
     }
 
@@ -134,14 +142,15 @@ public function doSearch($public_object_search_request)
      * Operation doSearchWithHttpInfo
      *
      * @param  \HubSpot\Client\Crm\Objects\PostalMail\Model\PublicObjectSearchRequest $public_object_search_request (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['doSearch'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\PostalMail\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\PostalMail\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return array of \HubSpot\Client\Crm\Objects\PostalMail\Model\CollectionResponseWithTotalSimplePublicObjectForwardPaging|\HubSpot\Client\Crm\Objects\PostalMail\Model\Error, HTTP status code, HTTP response headers (array of strings)
      */
-    public function doSearchWithHttpInfo($public_object_search_request)
+    public function doSearchWithHttpInfo($public_object_search_request, string $contentType = self::contentTypes['doSearch'][0])
     {
-        $request = $this->doSearchRequest($public_object_search_request);
+        $request = $this->doSearchRequest($public_object_search_request, $contentType);
 
         try {
             $options = $this->createHttpClientOption();
@@ -185,7 +194,19 @@ public function doSearchWithHttpInfo($public_object_search_request)
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\PostalMail\Model\CollectionResponseWithTotalSimplePublicObjectForwardPaging' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -200,7 +221,19 @@ public function doSearchWithHttpInfo($public_object_search_request)
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\PostalMail\Model\Error' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -217,7 +250,19 @@ public function doSearchWithHttpInfo($public_object_search_request)
             } else {
                 $content = (string) $response->getBody();
                 if ($returnType !== 'string') {
-                    $content = json_decode($content);
+                    try {
+                        $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                    } catch (\JsonException $exception) {
+                        throw new ApiException(
+                            sprintf(
+                                'Error JSON decoding server response (%s)',
+                                $request->getUri()
+                            ),
+                            $statusCode,
+                            $response->getHeaders(),
+                            $content
+                        );
+                    }
                 }
             }
 
@@ -254,13 +299,14 @@ public function doSearchWithHttpInfo($public_object_search_request)
      * Operation doSearchAsync
      *
      * @param  \HubSpot\Client\Crm\Objects\PostalMail\Model\PublicObjectSearchRequest $public_object_search_request (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['doSearch'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function doSearchAsync($public_object_search_request)
+    public function doSearchAsync($public_object_search_request, string $contentType = self::contentTypes['doSearch'][0])
     {
-        return $this->doSearchAsyncWithHttpInfo($public_object_search_request)
+        return $this->doSearchAsyncWithHttpInfo($public_object_search_request, $contentType)
             ->then(
                 function ($response) {
                     return $response[0];
@@ -272,14 +318,15 @@ function ($response) {
      * Operation doSearchAsyncWithHttpInfo
      *
      * @param  \HubSpot\Client\Crm\Objects\PostalMail\Model\PublicObjectSearchRequest $public_object_search_request (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['doSearch'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function doSearchAsyncWithHttpInfo($public_object_search_request)
+    public function doSearchAsyncWithHttpInfo($public_object_search_request, string $contentType = self::contentTypes['doSearch'][0])
     {
         $returnType = '\HubSpot\Client\Crm\Objects\PostalMail\Model\CollectionResponseWithTotalSimplePublicObjectForwardPaging';
-        $request = $this->doSearchRequest($public_object_search_request);
+        $request = $this->doSearchRequest($public_object_search_request, $contentType);
 
         return $this->client
             ->sendAsync($request, $this->createHttpClientOption())
@@ -321,12 +368,14 @@ function ($exception) {
      * Create request for operation 'doSearch'
      *
      * @param  \HubSpot\Client\Crm\Objects\PostalMail\Model\PublicObjectSearchRequest $public_object_search_request (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['doSearch'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Psr7\Request
      */
-    public function doSearchRequest($public_object_search_request)
+    public function doSearchRequest($public_object_search_request, string $contentType = self::contentTypes['doSearch'][0])
     {
+
         // verify the required parameter 'public_object_search_request' is set
         if ($public_object_search_request === null || (is_array($public_object_search_request) && count($public_object_search_request) === 0)) {
             throw new \InvalidArgumentException(
@@ -334,6 +383,7 @@ public function doSearchRequest($public_object_search_request)
             );
         }
 
+
         $resourcePath = '/crm/v3/objects/postal_mail/search';
         $formParams = [];
         $queryParams = [];
@@ -345,21 +395,17 @@ public function doSearchRequest($public_object_search_request)
 
 
 
-        if ($multipart) {
-            $headers = $this->headerSelector->selectHeadersForMultipart(
-                ['application/json', '*/*']
-            );
-        } else {
-            $headers = $this->headerSelector->selectHeaders(
-                ['application/json', '*/*'],
-                ['application/json']
-            );
-        }
+        $headers = $this->headerSelector->selectHeaders(
+            ['application/json', '*/*', ],
+            $contentType,
+            $multipart
+        );
 
         // for model (json/xml)
         if (isset($public_object_search_request)) {
-            if ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode(ObjectSerializer::sanitizeForSerialization($public_object_search_request));
+            if (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the body
+                $httpBody = \GuzzleHttp\Utils::jsonEncode(ObjectSerializer::sanitizeForSerialization($public_object_search_request));
             } else {
                 $httpBody = $public_object_search_request;
             }
@@ -378,9 +424,9 @@ public function doSearchRequest($public_object_search_request)
                 // for HTTP post (form)
                 $httpBody = new MultipartStream($multipartContents);
 
-            } elseif ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode($formParams);
-
+            } elseif (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the form parameters
+                $httpBody = \GuzzleHttp\Utils::jsonEncode($formParams);
             } else {
                 // for HTTP post (form)
                 $httpBody = ObjectSerializer::buildQuery($formParams);
@@ -403,10 +449,11 @@ public function doSearchRequest($public_object_search_request)
             $headers
         );
 
+        $operationHost = $this->config->getHost();
         $query = ObjectSerializer::buildQuery($queryParams);
         return new Request(
             'POST',
-            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
+            $operationHost . $resourcePath . ($query ? "?{$query}" : ''),
             $headers,
             $httpBody
         );
diff --git a/codegen/Crm/Objects/PostalMail/ApiException.php b/codegen/Crm/Objects/PostalMail/ApiException.php
index deb03edb..39cc6545 100644
--- a/codegen/Crm/Objects/PostalMail/ApiException.php
+++ b/codegen/Crm/Objects/PostalMail/ApiException.php
@@ -16,7 +16,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
diff --git a/codegen/Crm/Objects/PostalMail/Configuration.php b/codegen/Crm/Objects/PostalMail/Configuration.php
index f74888a8..ee35fca7 100644
--- a/codegen/Crm/Objects/PostalMail/Configuration.php
+++ b/codegen/Crm/Objects/PostalMail/Configuration.php
@@ -16,7 +16,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -209,7 +209,7 @@ public function getAccessToken()
     /**
      * Sets boolean format for query string.
      *
-     * @param string $booleanFormatForQueryString Boolean format for query string
+     * @param string $booleanFormat Boolean format for query string
      *
      * @return $this
      */
@@ -479,32 +479,31 @@ public function getHostSettings()
     }
 
     /**
-     * Returns URL based on the index and variables
-     *
-     * @param int        $index     index of the host settings
-     * @param array|null $variables hash of variable and the corresponding value (optional)
-     * @return string URL based on host settings
-     */
-    public function getHostFromSettings($index, $variables = null)
+    * Returns URL based on host settings, index and variables
+    *
+    * @param array      $hostSettings array of host settings, generated from getHostSettings() or equivalent from the API clients
+    * @param int        $hostIndex    index of the host settings
+    * @param array|null $variables    hash of variable and the corresponding value (optional)
+    * @return string URL based on host settings
+    */
+    public static function getHostString(array $hostSettings, $hostIndex, array $variables = null)
     {
         if (null === $variables) {
             $variables = [];
         }
 
-        $hosts = $this->getHostSettings();
-
         // check array index out of bound
-        if ($index < 0 || $index >= sizeof($hosts)) {
-            throw new \InvalidArgumentException("Invalid index $index when selecting the host. Must be less than ".sizeof($hosts));
+        if ($hostIndex < 0 || $hostIndex >= count($hostSettings)) {
+            throw new \InvalidArgumentException("Invalid index $hostIndex when selecting the host. Must be less than ".count($hostSettings));
         }
 
-        $host = $hosts[$index];
+        $host = $hostSettings[$hostIndex];
         $url = $host["url"];
 
         // go through variable and assign a value
         foreach ($host["variables"] ?? [] as $name => $variable) {
             if (array_key_exists($name, $variables)) { // check to see if it's in the variables provided by the user
-                if (in_array($variables[$name], $variable["enum_values"], true)) { // check to see if the value is in the enum
+                if (!isset($variable['enum_values']) || in_array($variables[$name], $variable["enum_values"], true)) { // check to see if the value is in the enum
                     $url = str_replace("{".$name."}", $variables[$name], $url);
                 } else {
                     throw new \InvalidArgumentException("The variable `$name` in the host URL has invalid value ".$variables[$name].". Must be ".join(',', $variable["enum_values"]).".");
@@ -517,4 +516,16 @@ public function getHostFromSettings($index, $variables = null)
 
         return $url;
     }
+
+    /**
+     * Returns URL based on the index and variables
+     *
+     * @param int        $index     index of the host settings
+     * @param array|null $variables hash of variable and the corresponding value (optional)
+     * @return string URL based on host settings
+     */
+    public function getHostFromSettings($index, $variables = null)
+    {
+        return self::getHostString($this->getHostSettings(), $index, $variables);
+    }
 }
diff --git a/codegen/Crm/Objects/PostalMail/HeaderSelector.php b/codegen/Crm/Objects/PostalMail/HeaderSelector.php
index bf4cac3c..09e22b15 100644
--- a/codegen/Crm/Objects/PostalMail/HeaderSelector.php
+++ b/codegen/Crm/Objects/PostalMail/HeaderSelector.php
@@ -1,6 +1,6 @@
 <?php
 /**
- * ApiException
+ * HeaderSelector
  * PHP version 7.4
  *
  * @category Class
@@ -16,7 +16,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -27,10 +27,8 @@
 
 namespace HubSpot\Client\Crm\Objects\PostalMail;
 
-use \Exception;
-
 /**
- * ApiException Class Doc Comment
+ * HeaderSelector Class Doc Comment
  *
  * @category Class
  * @package  HubSpot\Client\Crm\Objects\PostalMail
@@ -41,10 +39,11 @@ class HeaderSelector
 {
     /**
      * @param string[] $accept
-     * @param string[] $contentTypes
-     * @return array
+     * @param string   $contentType
+     * @param bool     $isMultipart
+     * @return string[]
      */
-    public function selectHeaders($accept, $contentTypes)
+    public function selectHeaders(array $accept, string $contentType, bool $isMultipart): array
     {
         $headers = [];
 
@@ -53,55 +52,194 @@ public function selectHeaders($accept, $contentTypes)
             $headers['Accept'] = $accept;
         }
 
-        $headers['Content-Type'] = $this->selectContentTypeHeader($contentTypes);
-        return $headers;
-    }
+        if (!$isMultipart) {
+            if($contentType === '') {
+                $contentType = 'application/json';
+            }
 
-    /**
-     * @param string[] $accept
-     * @return array
-     */
-    public function selectHeadersForMultipart($accept)
-    {
-        $headers = $this->selectHeaders($accept, []);
+            $headers['Content-Type'] = $contentType;
+        }
 
-        unset($headers['Content-Type']);
         return $headers;
     }
 
     /**
-     * Return the header 'Accept' based on an array of Accept provided
+     * Return the header 'Accept' based on an array of Accept provided.
      *
      * @param string[] $accept Array of header
      *
      * @return null|string Accept (e.g. application/json)
      */
-    private function selectAcceptHeader($accept)
+    private function selectAcceptHeader(array $accept): ?string
     {
-        if (count($accept) === 0 || (count($accept) === 1 && $accept[0] === '')) {
+        # filter out empty entries
+        $accept = array_filter($accept);
+
+        if (count($accept) === 0) {
             return null;
-        } elseif ($jsonAccept = preg_grep('~(?i)^(application/json|[^;/ \t]+/[^;/ \t]+[+]json)[ \t]*(;.*)?$~', $accept)) {
-            return implode(',', $jsonAccept);
-        } else {
+        }
+
+        # If there's only one Accept header, just use it
+        if (count($accept) === 1) {
+            return reset($accept);
+        }
+
+        # If none of the available Accept headers is of type "json", then just use all them
+        $headersWithJson = preg_grep('~(?i)^(application/json|[^;/ \t]+/[^;/ \t]+[+]json)[ \t]*(;.*)?$~', $accept);
+        if (count($headersWithJson) === 0) {
             return implode(',', $accept);
         }
+
+        # If we got here, then we need add quality values (weight), as described in IETF RFC 9110, Items 12.4.2/12.5.1,
+        # to give the highest priority to json-like headers - recalculating the existing ones, if needed
+        return $this->getAcceptHeaderWithAdjustedWeight($accept, $headersWithJson);
+    }
+
+    /**
+    * Create an Accept header string from the given "Accept" headers array, recalculating all weights
+    *
+    * @param string[] $accept            Array of Accept Headers
+    * @param string[] $headersWithJson   Array of Accept Headers of type "json"
+    *
+    * @return string "Accept" Header (e.g. "application/json, text/html; q=0.9")
+    */
+    private function getAcceptHeaderWithAdjustedWeight(array $accept, array $headersWithJson): string
+    {
+        $processedHeaders = [
+            'withApplicationJson' => [],
+            'withJson' => [],
+            'withoutJson' => [],
+        ];
+
+        foreach ($accept as $header) {
+
+            $headerData = $this->getHeaderAndWeight($header);
+
+            if (stripos($headerData['header'], 'application/json') === 0) {
+                $processedHeaders['withApplicationJson'][] = $headerData;
+            } elseif (in_array($header, $headersWithJson, true)) {
+                $processedHeaders['withJson'][] = $headerData;
+            } else {
+                $processedHeaders['withoutJson'][] = $headerData;
+            }
+        }
+
+        $acceptHeaders = [];
+        $currentWeight = 1000;
+
+        $hasMoreThan28Headers = count($accept) > 28;
+
+        foreach($processedHeaders as $headers) {
+            if (count($headers) > 0) {
+                $acceptHeaders[] = $this->adjustWeight($headers, $currentWeight, $hasMoreThan28Headers);
+            }
+        }
+
+        $acceptHeaders = array_merge(...$acceptHeaders);
+
+        return implode(',', $acceptHeaders);
     }
 
     /**
-     * Return the content type based on an array of content-type provided
+     * Given an Accept header, returns an associative array splitting the header and its weight
      *
-     * @param string[] $contentType Array fo content-type
+     * @param string $header "Accept" Header
      *
-     * @return string Content-Type (e.g. application/json)
+     * @return array with the header and its weight
      */
-    private function selectContentTypeHeader($contentType)
+    private function getHeaderAndWeight(string $header): array
     {
-        if (count($contentType) === 0 || (count($contentType) === 1 && $contentType[0] === '')) {
-            return 'application/json';
-        } elseif (preg_grep("/application\/json/i", $contentType)) {
-            return 'application/json';
+        # matches headers with weight, splitting the header and the weight in $outputArray
+        if (preg_match('/(.*);\s*q=(1(?:\.0+)?|0\.\d+)$/', $header, $outputArray) === 1) {
+            $headerData = [
+                'header' => $outputArray[1],
+                'weight' => (int)($outputArray[2] * 1000),
+            ];
         } else {
-            return implode(',', $contentType);
+            $headerData = [
+                'header' => trim($header),
+                'weight' => 1000,
+            ];
+        }
+
+        return $headerData;
+    }
+
+    /**
+     * @param array[] $headers
+     * @param float   $currentWeight
+     * @param bool    $hasMoreThan28Headers
+     * @return string[] array of adjusted "Accept" headers
+     */
+    private function adjustWeight(array $headers, float &$currentWeight, bool $hasMoreThan28Headers): array
+    {
+        usort($headers, function (array $a, array $b) {
+            return $b['weight'] - $a['weight'];
+        });
+
+        $acceptHeaders = [];
+        foreach ($headers as $index => $header) {
+            if($index > 0 && $headers[$index - 1]['weight'] > $header['weight'])
+            {
+                $currentWeight = $this->getNextWeight($currentWeight, $hasMoreThan28Headers);
+            }
+
+            $weight = $currentWeight;
+
+            $acceptHeaders[] = $this->buildAcceptHeader($header['header'], $weight);
+        }
+
+        $currentWeight = $this->getNextWeight($currentWeight, $hasMoreThan28Headers);
+
+        return $acceptHeaders;
+    }
+
+    /**
+     * @param string $header
+     * @param int    $weight
+     * @return string
+     */
+    private function buildAcceptHeader(string $header, int $weight): string
+    {
+        if($weight === 1000) {
+            return $header;
+        }
+
+        return trim($header, '; ') . ';q=' . rtrim(sprintf('%0.3f', $weight / 1000), '0');
+    }
+
+    /**
+     * Calculate the next weight, based on the current one.
+     *
+     * If there are less than 28 "Accept" headers, the weights will be decreased by 1 on its highest significant digit, using the
+     * following formula:
+     *
+     *    next weight = current weight - 10 ^ (floor(log(current weight - 1)))
+     *
+     *    ( current weight minus ( 10 raised to the power of ( floor of (log to the base 10 of ( current weight minus 1 ) ) ) ) )
+     *
+     * Starting from 1000, this generates the following series:
+     *
+     * 1000, 900, 800, 700, 600, 500, 400, 300, 200, 100, 90, 80, 70, 60, 50, 40, 30, 20, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1
+     *
+     * The resulting quality codes are closer to the average "normal" usage of them (like "q=0.9", "q=0.8" and so on), but it only works
+     * if there is a maximum of 28 "Accept" headers. If we have more than that (which is extremely unlikely), then we fall back to a 1-by-1
+     * decrement rule, which will result in quality codes like "q=0.999", "q=0.998" etc.
+     *
+     * @param int  $currentWeight varying from 1 to 1000 (will be divided by 1000 to build the quality value)
+     * @param bool $hasMoreThan28Headers
+     * @return int
+     */
+    public function getNextWeight(int $currentWeight, bool $hasMoreThan28Headers): int
+    {
+        if ($currentWeight <= 1) {
+            return 1;
+        }
+
+        if ($hasMoreThan28Headers) {
+            return $currentWeight - 1;
         }
+
+        return $currentWeight - 10 ** floor( log10($currentWeight - 1) );
     }
 }
diff --git a/codegen/Crm/Objects/PostalMail/Model/AssociatedId.php b/codegen/Crm/Objects/PostalMail/Model/AssociatedId.php
index 1afb21f6..6331f83e 100644
--- a/codegen/Crm/Objects/PostalMail/Model/AssociatedId.php
+++ b/codegen/Crm/Objects/PostalMail/Model/AssociatedId.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -73,6 +73,23 @@ class AssociatedId implements ModelInterface, ArrayAccess, \JsonSerializable
         'type' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'id' => false,
+        'type' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -93,6 +110,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -181,8 +250,26 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['id'] = $data['id'] ?? null;
-        $this->container['type'] = $data['type'] ?? null;
+        $this->setIfExists('id', $data ?? [], null);
+        $this->setIfExists('type', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -234,6 +321,9 @@ public function getId()
      */
     public function setId($id)
     {
+        if (is_null($id)) {
+            throw new \InvalidArgumentException('non-nullable id cannot be null');
+        }
         $this->container['id'] = $id;
 
         return $this;
@@ -258,6 +348,9 @@ public function getType()
      */
     public function setType($type)
     {
+        if (is_null($type)) {
+            throw new \InvalidArgumentException('non-nullable type cannot be null');
+        }
         $this->container['type'] = $type;
 
         return $this;
diff --git a/codegen/Crm/Objects/PostalMail/Model/AssociationSpec.php b/codegen/Crm/Objects/PostalMail/Model/AssociationSpec.php
index 064bcf86..fe6893a6 100644
--- a/codegen/Crm/Objects/PostalMail/Model/AssociationSpec.php
+++ b/codegen/Crm/Objects/PostalMail/Model/AssociationSpec.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -73,6 +73,23 @@ class AssociationSpec implements ModelInterface, ArrayAccess, \JsonSerializable
         'association_type_id' => 'int32'
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'association_category' => false,
+        'association_type_id' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -93,6 +110,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -198,8 +267,26 @@ public function getAssociationCategoryAllowableValues()
      */
     public function __construct(array $data = null)
     {
-        $this->container['association_category'] = $data['association_category'] ?? null;
-        $this->container['association_type_id'] = $data['association_type_id'] ?? null;
+        $this->setIfExists('association_category', $data ?? [], null);
+        $this->setIfExists('association_type_id', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -260,6 +347,9 @@ public function getAssociationCategory()
      */
     public function setAssociationCategory($association_category)
     {
+        if (is_null($association_category)) {
+            throw new \InvalidArgumentException('non-nullable association_category cannot be null');
+        }
         $allowedValues = $this->getAssociationCategoryAllowableValues();
         if (!in_array($association_category, $allowedValues, true)) {
             throw new \InvalidArgumentException(
@@ -294,6 +384,9 @@ public function getAssociationTypeId()
      */
     public function setAssociationTypeId($association_type_id)
     {
+        if (is_null($association_type_id)) {
+            throw new \InvalidArgumentException('non-nullable association_type_id cannot be null');
+        }
         $this->container['association_type_id'] = $association_type_id;
 
         return $this;
diff --git a/codegen/Crm/Objects/PostalMail/Model/BatchInputSimplePublicObjectBatchInput.php b/codegen/Crm/Objects/PostalMail/Model/BatchInputSimplePublicObjectBatchInput.php
index 316afe8b..08530c50 100644
--- a/codegen/Crm/Objects/PostalMail/Model/BatchInputSimplePublicObjectBatchInput.php
+++ b/codegen/Crm/Objects/PostalMail/Model/BatchInputSimplePublicObjectBatchInput.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -71,6 +71,22 @@ class BatchInputSimplePublicObjectBatchInput implements ModelInterface, ArrayAcc
         'inputs' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'inputs' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -91,6 +107,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -176,7 +244,25 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['inputs'] = $data['inputs'] ?? null;
+        $this->setIfExists('inputs', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -225,6 +311,9 @@ public function getInputs()
      */
     public function setInputs($inputs)
     {
+        if (is_null($inputs)) {
+            throw new \InvalidArgumentException('non-nullable inputs cannot be null');
+        }
         $this->container['inputs'] = $inputs;
 
         return $this;
diff --git a/codegen/Crm/Objects/PostalMail/Model/BatchInputSimplePublicObjectId.php b/codegen/Crm/Objects/PostalMail/Model/BatchInputSimplePublicObjectId.php
index c417a7f1..b07349a7 100644
--- a/codegen/Crm/Objects/PostalMail/Model/BatchInputSimplePublicObjectId.php
+++ b/codegen/Crm/Objects/PostalMail/Model/BatchInputSimplePublicObjectId.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -71,6 +71,22 @@ class BatchInputSimplePublicObjectId implements ModelInterface, ArrayAccess, \Js
         'inputs' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'inputs' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -91,6 +107,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -176,7 +244,25 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['inputs'] = $data['inputs'] ?? null;
+        $this->setIfExists('inputs', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -225,6 +311,9 @@ public function getInputs()
      */
     public function setInputs($inputs)
     {
+        if (is_null($inputs)) {
+            throw new \InvalidArgumentException('non-nullable inputs cannot be null');
+        }
         $this->container['inputs'] = $inputs;
 
         return $this;
diff --git a/codegen/Crm/Objects/PostalMail/Model/BatchInputSimplePublicObjectInputForCreate.php b/codegen/Crm/Objects/PostalMail/Model/BatchInputSimplePublicObjectInputForCreate.php
index 653216b0..a283c04d 100644
--- a/codegen/Crm/Objects/PostalMail/Model/BatchInputSimplePublicObjectInputForCreate.php
+++ b/codegen/Crm/Objects/PostalMail/Model/BatchInputSimplePublicObjectInputForCreate.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -71,6 +71,22 @@ class BatchInputSimplePublicObjectInputForCreate implements ModelInterface, Arra
         'inputs' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'inputs' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -91,6 +107,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -176,7 +244,25 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['inputs'] = $data['inputs'] ?? null;
+        $this->setIfExists('inputs', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -225,6 +311,9 @@ public function getInputs()
      */
     public function setInputs($inputs)
     {
+        if (is_null($inputs)) {
+            throw new \InvalidArgumentException('non-nullable inputs cannot be null');
+        }
         $this->container['inputs'] = $inputs;
 
         return $this;
diff --git a/codegen/Crm/Objects/PostalMail/Model/BatchReadInputSimplePublicObjectId.php b/codegen/Crm/Objects/PostalMail/Model/BatchReadInputSimplePublicObjectId.php
index c1e436e7..afdc599a 100644
--- a/codegen/Crm/Objects/PostalMail/Model/BatchReadInputSimplePublicObjectId.php
+++ b/codegen/Crm/Objects/PostalMail/Model/BatchReadInputSimplePublicObjectId.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -77,6 +77,25 @@ class BatchReadInputSimplePublicObjectId implements ModelInterface, ArrayAccess,
         'properties' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'properties_with_history' => false,
+        'id_property' => false,
+        'inputs' => false,
+        'properties' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -97,6 +116,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -191,10 +262,28 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['properties_with_history'] = $data['properties_with_history'] ?? null;
-        $this->container['id_property'] = $data['id_property'] ?? null;
-        $this->container['inputs'] = $data['inputs'] ?? null;
-        $this->container['properties'] = $data['properties'] ?? null;
+        $this->setIfExists('properties_with_history', $data ?? [], null);
+        $this->setIfExists('id_property', $data ?? [], null);
+        $this->setIfExists('inputs', $data ?? [], null);
+        $this->setIfExists('properties', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -249,6 +338,9 @@ public function getPropertiesWithHistory()
      */
     public function setPropertiesWithHistory($properties_with_history)
     {
+        if (is_null($properties_with_history)) {
+            throw new \InvalidArgumentException('non-nullable properties_with_history cannot be null');
+        }
         $this->container['properties_with_history'] = $properties_with_history;
 
         return $this;
@@ -273,6 +365,9 @@ public function getIdProperty()
      */
     public function setIdProperty($id_property)
     {
+        if (is_null($id_property)) {
+            throw new \InvalidArgumentException('non-nullable id_property cannot be null');
+        }
         $this->container['id_property'] = $id_property;
 
         return $this;
@@ -297,6 +392,9 @@ public function getInputs()
      */
     public function setInputs($inputs)
     {
+        if (is_null($inputs)) {
+            throw new \InvalidArgumentException('non-nullable inputs cannot be null');
+        }
         $this->container['inputs'] = $inputs;
 
         return $this;
@@ -321,6 +419,9 @@ public function getProperties()
      */
     public function setProperties($properties)
     {
+        if (is_null($properties)) {
+            throw new \InvalidArgumentException('non-nullable properties cannot be null');
+        }
         $this->container['properties'] = $properties;
 
         return $this;
diff --git a/codegen/Crm/Objects/PostalMail/Model/BatchResponseSimplePublicObject.php b/codegen/Crm/Objects/PostalMail/Model/BatchResponseSimplePublicObject.php
index e51b90db..d77270ce 100644
--- a/codegen/Crm/Objects/PostalMail/Model/BatchResponseSimplePublicObject.php
+++ b/codegen/Crm/Objects/PostalMail/Model/BatchResponseSimplePublicObject.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -81,6 +81,27 @@ class BatchResponseSimplePublicObject implements ModelInterface, ArrayAccess, \J
         'status' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'completed_at' => false,
+        'requested_at' => false,
+        'started_at' => false,
+        'links' => false,
+        'results' => false,
+        'status' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -101,6 +122,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -220,12 +293,30 @@ public function getStatusAllowableValues()
      */
     public function __construct(array $data = null)
     {
-        $this->container['completed_at'] = $data['completed_at'] ?? null;
-        $this->container['requested_at'] = $data['requested_at'] ?? null;
-        $this->container['started_at'] = $data['started_at'] ?? null;
-        $this->container['links'] = $data['links'] ?? null;
-        $this->container['results'] = $data['results'] ?? null;
-        $this->container['status'] = $data['status'] ?? null;
+        $this->setIfExists('completed_at', $data ?? [], null);
+        $this->setIfExists('requested_at', $data ?? [], null);
+        $this->setIfExists('started_at', $data ?? [], null);
+        $this->setIfExists('links', $data ?? [], null);
+        $this->setIfExists('results', $data ?? [], null);
+        $this->setIfExists('status', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -292,6 +383,9 @@ public function getCompletedAt()
      */
     public function setCompletedAt($completed_at)
     {
+        if (is_null($completed_at)) {
+            throw new \InvalidArgumentException('non-nullable completed_at cannot be null');
+        }
         $this->container['completed_at'] = $completed_at;
 
         return $this;
@@ -316,6 +410,9 @@ public function getRequestedAt()
      */
     public function setRequestedAt($requested_at)
     {
+        if (is_null($requested_at)) {
+            throw new \InvalidArgumentException('non-nullable requested_at cannot be null');
+        }
         $this->container['requested_at'] = $requested_at;
 
         return $this;
@@ -340,6 +437,9 @@ public function getStartedAt()
      */
     public function setStartedAt($started_at)
     {
+        if (is_null($started_at)) {
+            throw new \InvalidArgumentException('non-nullable started_at cannot be null');
+        }
         $this->container['started_at'] = $started_at;
 
         return $this;
@@ -364,6 +464,9 @@ public function getLinks()
      */
     public function setLinks($links)
     {
+        if (is_null($links)) {
+            throw new \InvalidArgumentException('non-nullable links cannot be null');
+        }
         $this->container['links'] = $links;
 
         return $this;
@@ -388,6 +491,9 @@ public function getResults()
      */
     public function setResults($results)
     {
+        if (is_null($results)) {
+            throw new \InvalidArgumentException('non-nullable results cannot be null');
+        }
         $this->container['results'] = $results;
 
         return $this;
@@ -412,6 +518,9 @@ public function getStatus()
      */
     public function setStatus($status)
     {
+        if (is_null($status)) {
+            throw new \InvalidArgumentException('non-nullable status cannot be null');
+        }
         $allowedValues = $this->getStatusAllowableValues();
         if (!in_array($status, $allowedValues, true)) {
             throw new \InvalidArgumentException(
diff --git a/codegen/Crm/Objects/PostalMail/Model/BatchResponseSimplePublicObjectWithErrors.php b/codegen/Crm/Objects/PostalMail/Model/BatchResponseSimplePublicObjectWithErrors.php
index 9533e000..5b2cb0a3 100644
--- a/codegen/Crm/Objects/PostalMail/Model/BatchResponseSimplePublicObjectWithErrors.php
+++ b/codegen/Crm/Objects/PostalMail/Model/BatchResponseSimplePublicObjectWithErrors.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -85,6 +85,29 @@ class BatchResponseSimplePublicObjectWithErrors implements ModelInterface, Array
         'status' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'completed_at' => false,
+        'num_errors' => false,
+        'requested_at' => false,
+        'started_at' => false,
+        'links' => false,
+        'results' => false,
+        'errors' => false,
+        'status' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -105,6 +128,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -230,14 +305,32 @@ public function getStatusAllowableValues()
      */
     public function __construct(array $data = null)
     {
-        $this->container['completed_at'] = $data['completed_at'] ?? null;
-        $this->container['num_errors'] = $data['num_errors'] ?? null;
-        $this->container['requested_at'] = $data['requested_at'] ?? null;
-        $this->container['started_at'] = $data['started_at'] ?? null;
-        $this->container['links'] = $data['links'] ?? null;
-        $this->container['results'] = $data['results'] ?? null;
-        $this->container['errors'] = $data['errors'] ?? null;
-        $this->container['status'] = $data['status'] ?? null;
+        $this->setIfExists('completed_at', $data ?? [], null);
+        $this->setIfExists('num_errors', $data ?? [], null);
+        $this->setIfExists('requested_at', $data ?? [], null);
+        $this->setIfExists('started_at', $data ?? [], null);
+        $this->setIfExists('links', $data ?? [], null);
+        $this->setIfExists('results', $data ?? [], null);
+        $this->setIfExists('errors', $data ?? [], null);
+        $this->setIfExists('status', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -304,6 +397,9 @@ public function getCompletedAt()
      */
     public function setCompletedAt($completed_at)
     {
+        if (is_null($completed_at)) {
+            throw new \InvalidArgumentException('non-nullable completed_at cannot be null');
+        }
         $this->container['completed_at'] = $completed_at;
 
         return $this;
@@ -328,6 +424,9 @@ public function getNumErrors()
      */
     public function setNumErrors($num_errors)
     {
+        if (is_null($num_errors)) {
+            throw new \InvalidArgumentException('non-nullable num_errors cannot be null');
+        }
         $this->container['num_errors'] = $num_errors;
 
         return $this;
@@ -352,6 +451,9 @@ public function getRequestedAt()
      */
     public function setRequestedAt($requested_at)
     {
+        if (is_null($requested_at)) {
+            throw new \InvalidArgumentException('non-nullable requested_at cannot be null');
+        }
         $this->container['requested_at'] = $requested_at;
 
         return $this;
@@ -376,6 +478,9 @@ public function getStartedAt()
      */
     public function setStartedAt($started_at)
     {
+        if (is_null($started_at)) {
+            throw new \InvalidArgumentException('non-nullable started_at cannot be null');
+        }
         $this->container['started_at'] = $started_at;
 
         return $this;
@@ -400,6 +505,9 @@ public function getLinks()
      */
     public function setLinks($links)
     {
+        if (is_null($links)) {
+            throw new \InvalidArgumentException('non-nullable links cannot be null');
+        }
         $this->container['links'] = $links;
 
         return $this;
@@ -424,6 +532,9 @@ public function getResults()
      */
     public function setResults($results)
     {
+        if (is_null($results)) {
+            throw new \InvalidArgumentException('non-nullable results cannot be null');
+        }
         $this->container['results'] = $results;
 
         return $this;
@@ -448,6 +559,9 @@ public function getErrors()
      */
     public function setErrors($errors)
     {
+        if (is_null($errors)) {
+            throw new \InvalidArgumentException('non-nullable errors cannot be null');
+        }
         $this->container['errors'] = $errors;
 
         return $this;
@@ -472,6 +586,9 @@ public function getStatus()
      */
     public function setStatus($status)
     {
+        if (is_null($status)) {
+            throw new \InvalidArgumentException('non-nullable status cannot be null');
+        }
         $allowedValues = $this->getStatusAllowableValues();
         if (!in_array($status, $allowedValues, true)) {
             throw new \InvalidArgumentException(
diff --git a/codegen/Crm/Objects/PostalMail/Model/CollectionResponseAssociatedId.php b/codegen/Crm/Objects/PostalMail/Model/CollectionResponseAssociatedId.php
index eddaabbd..b5a8ceea 100644
--- a/codegen/Crm/Objects/PostalMail/Model/CollectionResponseAssociatedId.php
+++ b/codegen/Crm/Objects/PostalMail/Model/CollectionResponseAssociatedId.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -73,6 +73,23 @@ class CollectionResponseAssociatedId implements ModelInterface, ArrayAccess, \Js
         'results' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'paging' => false,
+        'results' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -93,6 +110,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -181,8 +250,26 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['paging'] = $data['paging'] ?? null;
-        $this->container['results'] = $data['results'] ?? null;
+        $this->setIfExists('paging', $data ?? [], null);
+        $this->setIfExists('results', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -231,6 +318,9 @@ public function getPaging()
      */
     public function setPaging($paging)
     {
+        if (is_null($paging)) {
+            throw new \InvalidArgumentException('non-nullable paging cannot be null');
+        }
         $this->container['paging'] = $paging;
 
         return $this;
@@ -255,6 +345,9 @@ public function getResults()
      */
     public function setResults($results)
     {
+        if (is_null($results)) {
+            throw new \InvalidArgumentException('non-nullable results cannot be null');
+        }
         $this->container['results'] = $results;
 
         return $this;
diff --git a/codegen/Crm/Objects/PostalMail/Model/CollectionResponseSimplePublicObjectWithAssociationsForwardPaging.php b/codegen/Crm/Objects/PostalMail/Model/CollectionResponseSimplePublicObjectWithAssociationsForwardPaging.php
index c7bf6c97..c209d22a 100644
--- a/codegen/Crm/Objects/PostalMail/Model/CollectionResponseSimplePublicObjectWithAssociationsForwardPaging.php
+++ b/codegen/Crm/Objects/PostalMail/Model/CollectionResponseSimplePublicObjectWithAssociationsForwardPaging.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -73,6 +73,23 @@ class CollectionResponseSimplePublicObjectWithAssociationsForwardPaging implemen
         'results' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'paging' => false,
+        'results' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -93,6 +110,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -181,8 +250,26 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['paging'] = $data['paging'] ?? null;
-        $this->container['results'] = $data['results'] ?? null;
+        $this->setIfExists('paging', $data ?? [], null);
+        $this->setIfExists('results', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -231,6 +318,9 @@ public function getPaging()
      */
     public function setPaging($paging)
     {
+        if (is_null($paging)) {
+            throw new \InvalidArgumentException('non-nullable paging cannot be null');
+        }
         $this->container['paging'] = $paging;
 
         return $this;
@@ -255,6 +345,9 @@ public function getResults()
      */
     public function setResults($results)
     {
+        if (is_null($results)) {
+            throw new \InvalidArgumentException('non-nullable results cannot be null');
+        }
         $this->container['results'] = $results;
 
         return $this;
diff --git a/codegen/Crm/Objects/PostalMail/Model/CollectionResponseWithTotalSimplePublicObjectForwardPaging.php b/codegen/Crm/Objects/PostalMail/Model/CollectionResponseWithTotalSimplePublicObjectForwardPaging.php
index 4ca0c6b4..25f4c38b 100644
--- a/codegen/Crm/Objects/PostalMail/Model/CollectionResponseWithTotalSimplePublicObjectForwardPaging.php
+++ b/codegen/Crm/Objects/PostalMail/Model/CollectionResponseWithTotalSimplePublicObjectForwardPaging.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -75,6 +75,24 @@ class CollectionResponseWithTotalSimplePublicObjectForwardPaging implements Mode
         'results' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'total' => false,
+        'paging' => false,
+        'results' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -95,6 +113,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -186,9 +256,27 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['total'] = $data['total'] ?? null;
-        $this->container['paging'] = $data['paging'] ?? null;
-        $this->container['results'] = $data['results'] ?? null;
+        $this->setIfExists('total', $data ?? [], null);
+        $this->setIfExists('paging', $data ?? [], null);
+        $this->setIfExists('results', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -240,6 +328,9 @@ public function getTotal()
      */
     public function setTotal($total)
     {
+        if (is_null($total)) {
+            throw new \InvalidArgumentException('non-nullable total cannot be null');
+        }
         $this->container['total'] = $total;
 
         return $this;
@@ -264,6 +355,9 @@ public function getPaging()
      */
     public function setPaging($paging)
     {
+        if (is_null($paging)) {
+            throw new \InvalidArgumentException('non-nullable paging cannot be null');
+        }
         $this->container['paging'] = $paging;
 
         return $this;
@@ -288,6 +382,9 @@ public function getResults()
      */
     public function setResults($results)
     {
+        if (is_null($results)) {
+            throw new \InvalidArgumentException('non-nullable results cannot be null');
+        }
         $this->container['results'] = $results;
 
         return $this;
diff --git a/codegen/Crm/Objects/PostalMail/Model/Error.php b/codegen/Crm/Objects/PostalMail/Model/Error.php
index e5b764e8..2c84a8a8 100644
--- a/codegen/Crm/Objects/PostalMail/Model/Error.php
+++ b/codegen/Crm/Objects/PostalMail/Model/Error.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -83,6 +83,28 @@ class Error implements ModelInterface, ArrayAccess, \JsonSerializable
         'errors' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'sub_category' => false,
+        'context' => false,
+        'correlation_id' => false,
+        'links' => false,
+        'message' => false,
+        'category' => false,
+        'errors' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -103,6 +125,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -206,13 +280,31 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['sub_category'] = $data['sub_category'] ?? null;
-        $this->container['context'] = $data['context'] ?? null;
-        $this->container['correlation_id'] = $data['correlation_id'] ?? null;
-        $this->container['links'] = $data['links'] ?? null;
-        $this->container['message'] = $data['message'] ?? null;
-        $this->container['category'] = $data['category'] ?? null;
-        $this->container['errors'] = $data['errors'] ?? null;
+        $this->setIfExists('sub_category', $data ?? [], null);
+        $this->setIfExists('context', $data ?? [], null);
+        $this->setIfExists('correlation_id', $data ?? [], null);
+        $this->setIfExists('links', $data ?? [], null);
+        $this->setIfExists('message', $data ?? [], null);
+        $this->setIfExists('category', $data ?? [], null);
+        $this->setIfExists('errors', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -267,6 +359,9 @@ public function getSubCategory()
      */
     public function setSubCategory($sub_category)
     {
+        if (is_null($sub_category)) {
+            throw new \InvalidArgumentException('non-nullable sub_category cannot be null');
+        }
         $this->container['sub_category'] = $sub_category;
 
         return $this;
@@ -291,6 +386,9 @@ public function getContext()
      */
     public function setContext($context)
     {
+        if (is_null($context)) {
+            throw new \InvalidArgumentException('non-nullable context cannot be null');
+        }
         $this->container['context'] = $context;
 
         return $this;
@@ -315,6 +413,9 @@ public function getCorrelationId()
      */
     public function setCorrelationId($correlation_id)
     {
+        if (is_null($correlation_id)) {
+            throw new \InvalidArgumentException('non-nullable correlation_id cannot be null');
+        }
         $this->container['correlation_id'] = $correlation_id;
 
         return $this;
@@ -339,6 +440,9 @@ public function getLinks()
      */
     public function setLinks($links)
     {
+        if (is_null($links)) {
+            throw new \InvalidArgumentException('non-nullable links cannot be null');
+        }
         $this->container['links'] = $links;
 
         return $this;
@@ -363,6 +467,9 @@ public function getMessage()
      */
     public function setMessage($message)
     {
+        if (is_null($message)) {
+            throw new \InvalidArgumentException('non-nullable message cannot be null');
+        }
         $this->container['message'] = $message;
 
         return $this;
@@ -387,6 +494,9 @@ public function getCategory()
      */
     public function setCategory($category)
     {
+        if (is_null($category)) {
+            throw new \InvalidArgumentException('non-nullable category cannot be null');
+        }
         $this->container['category'] = $category;
 
         return $this;
@@ -411,6 +521,9 @@ public function getErrors()
      */
     public function setErrors($errors)
     {
+        if (is_null($errors)) {
+            throw new \InvalidArgumentException('non-nullable errors cannot be null');
+        }
         $this->container['errors'] = $errors;
 
         return $this;
diff --git a/codegen/Crm/Objects/PostalMail/Model/ErrorDetail.php b/codegen/Crm/Objects/PostalMail/Model/ErrorDetail.php
index 38f5d636..3b6e4719 100644
--- a/codegen/Crm/Objects/PostalMail/Model/ErrorDetail.php
+++ b/codegen/Crm/Objects/PostalMail/Model/ErrorDetail.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -79,6 +79,26 @@ class ErrorDetail implements ModelInterface, ArrayAccess, \JsonSerializable
         'message' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'sub_category' => false,
+        'code' => false,
+        'in' => false,
+        'context' => false,
+        'message' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -99,6 +119,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -196,11 +268,29 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['sub_category'] = $data['sub_category'] ?? null;
-        $this->container['code'] = $data['code'] ?? null;
-        $this->container['in'] = $data['in'] ?? null;
-        $this->container['context'] = $data['context'] ?? null;
-        $this->container['message'] = $data['message'] ?? null;
+        $this->setIfExists('sub_category', $data ?? [], null);
+        $this->setIfExists('code', $data ?? [], null);
+        $this->setIfExists('in', $data ?? [], null);
+        $this->setIfExists('context', $data ?? [], null);
+        $this->setIfExists('message', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -249,6 +339,9 @@ public function getSubCategory()
      */
     public function setSubCategory($sub_category)
     {
+        if (is_null($sub_category)) {
+            throw new \InvalidArgumentException('non-nullable sub_category cannot be null');
+        }
         $this->container['sub_category'] = $sub_category;
 
         return $this;
@@ -273,6 +366,9 @@ public function getCode()
      */
     public function setCode($code)
     {
+        if (is_null($code)) {
+            throw new \InvalidArgumentException('non-nullable code cannot be null');
+        }
         $this->container['code'] = $code;
 
         return $this;
@@ -297,6 +393,9 @@ public function getIn()
      */
     public function setIn($in)
     {
+        if (is_null($in)) {
+            throw new \InvalidArgumentException('non-nullable in cannot be null');
+        }
         $this->container['in'] = $in;
 
         return $this;
@@ -321,6 +420,9 @@ public function getContext()
      */
     public function setContext($context)
     {
+        if (is_null($context)) {
+            throw new \InvalidArgumentException('non-nullable context cannot be null');
+        }
         $this->container['context'] = $context;
 
         return $this;
@@ -345,6 +447,9 @@ public function getMessage()
      */
     public function setMessage($message)
     {
+        if (is_null($message)) {
+            throw new \InvalidArgumentException('non-nullable message cannot be null');
+        }
         $this->container['message'] = $message;
 
         return $this;
diff --git a/codegen/Crm/Objects/PostalMail/Model/Filter.php b/codegen/Crm/Objects/PostalMail/Model/Filter.php
index 91dd6682..f183253a 100644
--- a/codegen/Crm/Objects/PostalMail/Model/Filter.php
+++ b/codegen/Crm/Objects/PostalMail/Model/Filter.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -79,6 +79,26 @@ class Filter implements ModelInterface, ArrayAccess, \JsonSerializable
         'operator' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'high_value' => false,
+        'property_name' => false,
+        'values' => false,
+        'value' => false,
+        'operator' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -99,6 +119,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -233,11 +305,29 @@ public function getOperatorAllowableValues()
      */
     public function __construct(array $data = null)
     {
-        $this->container['high_value'] = $data['high_value'] ?? null;
-        $this->container['property_name'] = $data['property_name'] ?? null;
-        $this->container['values'] = $data['values'] ?? null;
-        $this->container['value'] = $data['value'] ?? null;
-        $this->container['operator'] = $data['operator'] ?? null;
+        $this->setIfExists('high_value', $data ?? [], null);
+        $this->setIfExists('property_name', $data ?? [], null);
+        $this->setIfExists('values', $data ?? [], null);
+        $this->setIfExists('value', $data ?? [], null);
+        $this->setIfExists('operator', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -298,6 +388,9 @@ public function getHighValue()
      */
     public function setHighValue($high_value)
     {
+        if (is_null($high_value)) {
+            throw new \InvalidArgumentException('non-nullable high_value cannot be null');
+        }
         $this->container['high_value'] = $high_value;
 
         return $this;
@@ -322,6 +415,9 @@ public function getPropertyName()
      */
     public function setPropertyName($property_name)
     {
+        if (is_null($property_name)) {
+            throw new \InvalidArgumentException('non-nullable property_name cannot be null');
+        }
         $this->container['property_name'] = $property_name;
 
         return $this;
@@ -346,6 +442,9 @@ public function getValues()
      */
     public function setValues($values)
     {
+        if (is_null($values)) {
+            throw new \InvalidArgumentException('non-nullable values cannot be null');
+        }
         $this->container['values'] = $values;
 
         return $this;
@@ -370,6 +469,9 @@ public function getValue()
      */
     public function setValue($value)
     {
+        if (is_null($value)) {
+            throw new \InvalidArgumentException('non-nullable value cannot be null');
+        }
         $this->container['value'] = $value;
 
         return $this;
@@ -394,6 +496,9 @@ public function getOperator()
      */
     public function setOperator($operator)
     {
+        if (is_null($operator)) {
+            throw new \InvalidArgumentException('non-nullable operator cannot be null');
+        }
         $allowedValues = $this->getOperatorAllowableValues();
         if (!in_array($operator, $allowedValues, true)) {
             throw new \InvalidArgumentException(
diff --git a/codegen/Crm/Objects/PostalMail/Model/FilterGroup.php b/codegen/Crm/Objects/PostalMail/Model/FilterGroup.php
index 4d745fd5..3548cbd2 100644
--- a/codegen/Crm/Objects/PostalMail/Model/FilterGroup.php
+++ b/codegen/Crm/Objects/PostalMail/Model/FilterGroup.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -71,6 +71,22 @@ class FilterGroup implements ModelInterface, ArrayAccess, \JsonSerializable
         'filters' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'filters' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -91,6 +107,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -176,7 +244,25 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['filters'] = $data['filters'] ?? null;
+        $this->setIfExists('filters', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -225,6 +311,9 @@ public function getFilters()
      */
     public function setFilters($filters)
     {
+        if (is_null($filters)) {
+            throw new \InvalidArgumentException('non-nullable filters cannot be null');
+        }
         $this->container['filters'] = $filters;
 
         return $this;
diff --git a/codegen/Crm/Objects/PostalMail/Model/ForwardPaging.php b/codegen/Crm/Objects/PostalMail/Model/ForwardPaging.php
index 665119ab..f08b7cfe 100644
--- a/codegen/Crm/Objects/PostalMail/Model/ForwardPaging.php
+++ b/codegen/Crm/Objects/PostalMail/Model/ForwardPaging.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -71,6 +71,22 @@ class ForwardPaging implements ModelInterface, ArrayAccess, \JsonSerializable
         'next' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'next' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -91,6 +107,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -176,7 +244,25 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['next'] = $data['next'] ?? null;
+        $this->setIfExists('next', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -222,6 +308,9 @@ public function getNext()
      */
     public function setNext($next)
     {
+        if (is_null($next)) {
+            throw new \InvalidArgumentException('non-nullable next cannot be null');
+        }
         $this->container['next'] = $next;
 
         return $this;
diff --git a/codegen/Crm/Objects/PostalMail/Model/ModelInterface.php b/codegen/Crm/Objects/PostalMail/Model/ModelInterface.php
index 56670e12..6cbab358 100644
--- a/codegen/Crm/Objects/PostalMail/Model/ModelInterface.php
+++ b/codegen/Crm/Objects/PostalMail/Model/ModelInterface.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -92,4 +92,20 @@ public function listInvalidProperties();
      * @return bool
      */
     public function valid();
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool;
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool;
 }
diff --git a/codegen/Crm/Objects/PostalMail/Model/NextPage.php b/codegen/Crm/Objects/PostalMail/Model/NextPage.php
index 23fd9686..56c71bae 100644
--- a/codegen/Crm/Objects/PostalMail/Model/NextPage.php
+++ b/codegen/Crm/Objects/PostalMail/Model/NextPage.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -73,6 +73,23 @@ class NextPage implements ModelInterface, ArrayAccess, \JsonSerializable
         'after' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'link' => false,
+        'after' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -93,6 +110,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -181,8 +250,26 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['link'] = $data['link'] ?? null;
-        $this->container['after'] = $data['after'] ?? null;
+        $this->setIfExists('link', $data ?? [], null);
+        $this->setIfExists('after', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -231,6 +318,9 @@ public function getLink()
      */
     public function setLink($link)
     {
+        if (is_null($link)) {
+            throw new \InvalidArgumentException('non-nullable link cannot be null');
+        }
         $this->container['link'] = $link;
 
         return $this;
@@ -255,6 +345,9 @@ public function getAfter()
      */
     public function setAfter($after)
     {
+        if (is_null($after)) {
+            throw new \InvalidArgumentException('non-nullable after cannot be null');
+        }
         $this->container['after'] = $after;
 
         return $this;
diff --git a/codegen/Crm/Objects/PostalMail/Model/Paging.php b/codegen/Crm/Objects/PostalMail/Model/Paging.php
index 82b85b03..4fc35f71 100644
--- a/codegen/Crm/Objects/PostalMail/Model/Paging.php
+++ b/codegen/Crm/Objects/PostalMail/Model/Paging.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -73,6 +73,23 @@ class Paging implements ModelInterface, ArrayAccess, \JsonSerializable
         'prev' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'next' => false,
+        'prev' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -93,6 +110,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -181,8 +250,26 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['next'] = $data['next'] ?? null;
-        $this->container['prev'] = $data['prev'] ?? null;
+        $this->setIfExists('next', $data ?? [], null);
+        $this->setIfExists('prev', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -228,6 +315,9 @@ public function getNext()
      */
     public function setNext($next)
     {
+        if (is_null($next)) {
+            throw new \InvalidArgumentException('non-nullable next cannot be null');
+        }
         $this->container['next'] = $next;
 
         return $this;
@@ -252,6 +342,9 @@ public function getPrev()
      */
     public function setPrev($prev)
     {
+        if (is_null($prev)) {
+            throw new \InvalidArgumentException('non-nullable prev cannot be null');
+        }
         $this->container['prev'] = $prev;
 
         return $this;
diff --git a/codegen/Crm/Objects/PostalMail/Model/PreviousPage.php b/codegen/Crm/Objects/PostalMail/Model/PreviousPage.php
index 21a10fe1..6a339e75 100644
--- a/codegen/Crm/Objects/PostalMail/Model/PreviousPage.php
+++ b/codegen/Crm/Objects/PostalMail/Model/PreviousPage.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -73,6 +73,23 @@ class PreviousPage implements ModelInterface, ArrayAccess, \JsonSerializable
         'link' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'before' => false,
+        'link' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -93,6 +110,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -181,8 +250,26 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['before'] = $data['before'] ?? null;
-        $this->container['link'] = $data['link'] ?? null;
+        $this->setIfExists('before', $data ?? [], null);
+        $this->setIfExists('link', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -231,6 +318,9 @@ public function getBefore()
      */
     public function setBefore($before)
     {
+        if (is_null($before)) {
+            throw new \InvalidArgumentException('non-nullable before cannot be null');
+        }
         $this->container['before'] = $before;
 
         return $this;
@@ -255,6 +345,9 @@ public function getLink()
      */
     public function setLink($link)
     {
+        if (is_null($link)) {
+            throw new \InvalidArgumentException('non-nullable link cannot be null');
+        }
         $this->container['link'] = $link;
 
         return $this;
diff --git a/codegen/Crm/Objects/PostalMail/Model/PublicAssociationsForObject.php b/codegen/Crm/Objects/PostalMail/Model/PublicAssociationsForObject.php
index 8e8d1dd2..c511c404 100644
--- a/codegen/Crm/Objects/PostalMail/Model/PublicAssociationsForObject.php
+++ b/codegen/Crm/Objects/PostalMail/Model/PublicAssociationsForObject.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -73,6 +73,23 @@ class PublicAssociationsForObject implements ModelInterface, ArrayAccess, \JsonS
         'to' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'types' => false,
+        'to' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -93,6 +110,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -181,8 +250,26 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['types'] = $data['types'] ?? null;
-        $this->container['to'] = $data['to'] ?? null;
+        $this->setIfExists('types', $data ?? [], null);
+        $this->setIfExists('to', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -234,6 +321,9 @@ public function getTypes()
      */
     public function setTypes($types)
     {
+        if (is_null($types)) {
+            throw new \InvalidArgumentException('non-nullable types cannot be null');
+        }
         $this->container['types'] = $types;
 
         return $this;
@@ -258,6 +348,9 @@ public function getTo()
      */
     public function setTo($to)
     {
+        if (is_null($to)) {
+            throw new \InvalidArgumentException('non-nullable to cannot be null');
+        }
         $this->container['to'] = $to;
 
         return $this;
diff --git a/codegen/Crm/Objects/PostalMail/Model/PublicGdprDeleteInput.php b/codegen/Crm/Objects/PostalMail/Model/PublicGdprDeleteInput.php
index e725a014..e41dc639 100644
--- a/codegen/Crm/Objects/PostalMail/Model/PublicGdprDeleteInput.php
+++ b/codegen/Crm/Objects/PostalMail/Model/PublicGdprDeleteInput.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -73,6 +73,23 @@ class PublicGdprDeleteInput implements ModelInterface, ArrayAccess, \JsonSeriali
         'object_id' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'id_property' => false,
+        'object_id' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -93,6 +110,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -181,8 +250,26 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['id_property'] = $data['id_property'] ?? null;
-        $this->container['object_id'] = $data['object_id'] ?? null;
+        $this->setIfExists('id_property', $data ?? [], null);
+        $this->setIfExists('object_id', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -231,6 +318,9 @@ public function getIdProperty()
      */
     public function setIdProperty($id_property)
     {
+        if (is_null($id_property)) {
+            throw new \InvalidArgumentException('non-nullable id_property cannot be null');
+        }
         $this->container['id_property'] = $id_property;
 
         return $this;
@@ -255,6 +345,9 @@ public function getObjectId()
      */
     public function setObjectId($object_id)
     {
+        if (is_null($object_id)) {
+            throw new \InvalidArgumentException('non-nullable object_id cannot be null');
+        }
         $this->container['object_id'] = $object_id;
 
         return $this;
diff --git a/codegen/Crm/Objects/PostalMail/Model/PublicMergeInput.php b/codegen/Crm/Objects/PostalMail/Model/PublicMergeInput.php
index 57e5b5dd..e76c588d 100644
--- a/codegen/Crm/Objects/PostalMail/Model/PublicMergeInput.php
+++ b/codegen/Crm/Objects/PostalMail/Model/PublicMergeInput.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -73,6 +73,23 @@ class PublicMergeInput implements ModelInterface, ArrayAccess, \JsonSerializable
         'primary_object_id' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'object_id_to_merge' => false,
+        'primary_object_id' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -93,6 +110,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -181,8 +250,26 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['object_id_to_merge'] = $data['object_id_to_merge'] ?? null;
-        $this->container['primary_object_id'] = $data['primary_object_id'] ?? null;
+        $this->setIfExists('object_id_to_merge', $data ?? [], null);
+        $this->setIfExists('primary_object_id', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -234,6 +321,9 @@ public function getObjectIdToMerge()
      */
     public function setObjectIdToMerge($object_id_to_merge)
     {
+        if (is_null($object_id_to_merge)) {
+            throw new \InvalidArgumentException('non-nullable object_id_to_merge cannot be null');
+        }
         $this->container['object_id_to_merge'] = $object_id_to_merge;
 
         return $this;
@@ -258,6 +348,9 @@ public function getPrimaryObjectId()
      */
     public function setPrimaryObjectId($primary_object_id)
     {
+        if (is_null($primary_object_id)) {
+            throw new \InvalidArgumentException('non-nullable primary_object_id cannot be null');
+        }
         $this->container['primary_object_id'] = $primary_object_id;
 
         return $this;
diff --git a/codegen/Crm/Objects/PostalMail/Model/PublicObjectId.php b/codegen/Crm/Objects/PostalMail/Model/PublicObjectId.php
index 0b3cdad3..0dd660f9 100644
--- a/codegen/Crm/Objects/PostalMail/Model/PublicObjectId.php
+++ b/codegen/Crm/Objects/PostalMail/Model/PublicObjectId.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -71,6 +71,22 @@ class PublicObjectId implements ModelInterface, ArrayAccess, \JsonSerializable
         'id' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'id' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -91,6 +107,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -176,7 +244,25 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['id'] = $data['id'] ?? null;
+        $this->setIfExists('id', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -225,6 +311,9 @@ public function getId()
      */
     public function setId($id)
     {
+        if (is_null($id)) {
+            throw new \InvalidArgumentException('non-nullable id cannot be null');
+        }
         $this->container['id'] = $id;
 
         return $this;
diff --git a/codegen/Crm/Objects/PostalMail/Model/PublicObjectSearchRequest.php b/codegen/Crm/Objects/PostalMail/Model/PublicObjectSearchRequest.php
index 37fb45cf..063f4049 100644
--- a/codegen/Crm/Objects/PostalMail/Model/PublicObjectSearchRequest.php
+++ b/codegen/Crm/Objects/PostalMail/Model/PublicObjectSearchRequest.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -81,6 +81,27 @@ class PublicObjectSearchRequest implements ModelInterface, ArrayAccess, \JsonSer
         'filter_groups' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'query' => false,
+        'limit' => false,
+        'after' => false,
+        'sorts' => false,
+        'properties' => false,
+        'filter_groups' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -101,6 +122,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -201,12 +274,30 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['query'] = $data['query'] ?? null;
-        $this->container['limit'] = $data['limit'] ?? null;
-        $this->container['after'] = $data['after'] ?? null;
-        $this->container['sorts'] = $data['sorts'] ?? null;
-        $this->container['properties'] = $data['properties'] ?? null;
-        $this->container['filter_groups'] = $data['filter_groups'] ?? null;
+        $this->setIfExists('query', $data ?? [], null);
+        $this->setIfExists('limit', $data ?? [], null);
+        $this->setIfExists('after', $data ?? [], null);
+        $this->setIfExists('sorts', $data ?? [], null);
+        $this->setIfExists('properties', $data ?? [], null);
+        $this->setIfExists('filter_groups', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -267,6 +358,9 @@ public function getQuery()
      */
     public function setQuery($query)
     {
+        if (is_null($query)) {
+            throw new \InvalidArgumentException('non-nullable query cannot be null');
+        }
         $this->container['query'] = $query;
 
         return $this;
@@ -291,6 +385,9 @@ public function getLimit()
      */
     public function setLimit($limit)
     {
+        if (is_null($limit)) {
+            throw new \InvalidArgumentException('non-nullable limit cannot be null');
+        }
         $this->container['limit'] = $limit;
 
         return $this;
@@ -315,6 +412,9 @@ public function getAfter()
      */
     public function setAfter($after)
     {
+        if (is_null($after)) {
+            throw new \InvalidArgumentException('non-nullable after cannot be null');
+        }
         $this->container['after'] = $after;
 
         return $this;
@@ -339,6 +439,9 @@ public function getSorts()
      */
     public function setSorts($sorts)
     {
+        if (is_null($sorts)) {
+            throw new \InvalidArgumentException('non-nullable sorts cannot be null');
+        }
         $this->container['sorts'] = $sorts;
 
         return $this;
@@ -363,6 +466,9 @@ public function getProperties()
      */
     public function setProperties($properties)
     {
+        if (is_null($properties)) {
+            throw new \InvalidArgumentException('non-nullable properties cannot be null');
+        }
         $this->container['properties'] = $properties;
 
         return $this;
@@ -387,6 +493,9 @@ public function getFilterGroups()
      */
     public function setFilterGroups($filter_groups)
     {
+        if (is_null($filter_groups)) {
+            throw new \InvalidArgumentException('non-nullable filter_groups cannot be null');
+        }
         $this->container['filter_groups'] = $filter_groups;
 
         return $this;
diff --git a/codegen/Crm/Objects/PostalMail/Model/SimplePublicObject.php b/codegen/Crm/Objects/PostalMail/Model/SimplePublicObject.php
index db23bd92..97c9a59e 100644
--- a/codegen/Crm/Objects/PostalMail/Model/SimplePublicObject.php
+++ b/codegen/Crm/Objects/PostalMail/Model/SimplePublicObject.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -83,6 +83,28 @@ class SimplePublicObject implements ModelInterface, ArrayAccess, \JsonSerializab
         'updated_at' => 'date-time'
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'created_at' => false,
+        'archived' => false,
+        'archived_at' => false,
+        'properties_with_history' => false,
+        'id' => false,
+        'properties' => false,
+        'updated_at' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -103,6 +125,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -206,13 +280,31 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['created_at'] = $data['created_at'] ?? null;
-        $this->container['archived'] = $data['archived'] ?? null;
-        $this->container['archived_at'] = $data['archived_at'] ?? null;
-        $this->container['properties_with_history'] = $data['properties_with_history'] ?? null;
-        $this->container['id'] = $data['id'] ?? null;
-        $this->container['properties'] = $data['properties'] ?? null;
-        $this->container['updated_at'] = $data['updated_at'] ?? null;
+        $this->setIfExists('created_at', $data ?? [], null);
+        $this->setIfExists('archived', $data ?? [], null);
+        $this->setIfExists('archived_at', $data ?? [], null);
+        $this->setIfExists('properties_with_history', $data ?? [], null);
+        $this->setIfExists('id', $data ?? [], null);
+        $this->setIfExists('properties', $data ?? [], null);
+        $this->setIfExists('updated_at', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -270,6 +362,9 @@ public function getCreatedAt()
      */
     public function setCreatedAt($created_at)
     {
+        if (is_null($created_at)) {
+            throw new \InvalidArgumentException('non-nullable created_at cannot be null');
+        }
         $this->container['created_at'] = $created_at;
 
         return $this;
@@ -294,6 +389,9 @@ public function getArchived()
      */
     public function setArchived($archived)
     {
+        if (is_null($archived)) {
+            throw new \InvalidArgumentException('non-nullable archived cannot be null');
+        }
         $this->container['archived'] = $archived;
 
         return $this;
@@ -318,6 +416,9 @@ public function getArchivedAt()
      */
     public function setArchivedAt($archived_at)
     {
+        if (is_null($archived_at)) {
+            throw new \InvalidArgumentException('non-nullable archived_at cannot be null');
+        }
         $this->container['archived_at'] = $archived_at;
 
         return $this;
@@ -342,6 +443,9 @@ public function getPropertiesWithHistory()
      */
     public function setPropertiesWithHistory($properties_with_history)
     {
+        if (is_null($properties_with_history)) {
+            throw new \InvalidArgumentException('non-nullable properties_with_history cannot be null');
+        }
         $this->container['properties_with_history'] = $properties_with_history;
 
         return $this;
@@ -366,6 +470,9 @@ public function getId()
      */
     public function setId($id)
     {
+        if (is_null($id)) {
+            throw new \InvalidArgumentException('non-nullable id cannot be null');
+        }
         $this->container['id'] = $id;
 
         return $this;
@@ -390,6 +497,9 @@ public function getProperties()
      */
     public function setProperties($properties)
     {
+        if (is_null($properties)) {
+            throw new \InvalidArgumentException('non-nullable properties cannot be null');
+        }
         $this->container['properties'] = $properties;
 
         return $this;
@@ -414,6 +524,9 @@ public function getUpdatedAt()
      */
     public function setUpdatedAt($updated_at)
     {
+        if (is_null($updated_at)) {
+            throw new \InvalidArgumentException('non-nullable updated_at cannot be null');
+        }
         $this->container['updated_at'] = $updated_at;
 
         return $this;
diff --git a/codegen/Crm/Objects/PostalMail/Model/SimplePublicObjectBatchInput.php b/codegen/Crm/Objects/PostalMail/Model/SimplePublicObjectBatchInput.php
index f848819a..17c7dfe2 100644
--- a/codegen/Crm/Objects/PostalMail/Model/SimplePublicObjectBatchInput.php
+++ b/codegen/Crm/Objects/PostalMail/Model/SimplePublicObjectBatchInput.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -75,6 +75,24 @@ class SimplePublicObjectBatchInput implements ModelInterface, ArrayAccess, \Json
         'properties' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'id_property' => false,
+        'id' => false,
+        'properties' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -95,6 +113,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -186,9 +256,27 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['id_property'] = $data['id_property'] ?? null;
-        $this->container['id'] = $data['id'] ?? null;
-        $this->container['properties'] = $data['properties'] ?? null;
+        $this->setIfExists('id_property', $data ?? [], null);
+        $this->setIfExists('id', $data ?? [], null);
+        $this->setIfExists('properties', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -240,6 +328,9 @@ public function getIdProperty()
      */
     public function setIdProperty($id_property)
     {
+        if (is_null($id_property)) {
+            throw new \InvalidArgumentException('non-nullable id_property cannot be null');
+        }
         $this->container['id_property'] = $id_property;
 
         return $this;
@@ -264,6 +355,9 @@ public function getId()
      */
     public function setId($id)
     {
+        if (is_null($id)) {
+            throw new \InvalidArgumentException('non-nullable id cannot be null');
+        }
         $this->container['id'] = $id;
 
         return $this;
@@ -288,6 +382,9 @@ public function getProperties()
      */
     public function setProperties($properties)
     {
+        if (is_null($properties)) {
+            throw new \InvalidArgumentException('non-nullable properties cannot be null');
+        }
         $this->container['properties'] = $properties;
 
         return $this;
diff --git a/codegen/Crm/Objects/PostalMail/Model/SimplePublicObjectId.php b/codegen/Crm/Objects/PostalMail/Model/SimplePublicObjectId.php
index f2216586..158354a8 100644
--- a/codegen/Crm/Objects/PostalMail/Model/SimplePublicObjectId.php
+++ b/codegen/Crm/Objects/PostalMail/Model/SimplePublicObjectId.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -71,6 +71,22 @@ class SimplePublicObjectId implements ModelInterface, ArrayAccess, \JsonSerializ
         'id' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'id' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -91,6 +107,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -176,7 +244,25 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['id'] = $data['id'] ?? null;
+        $this->setIfExists('id', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -225,6 +311,9 @@ public function getId()
      */
     public function setId($id)
     {
+        if (is_null($id)) {
+            throw new \InvalidArgumentException('non-nullable id cannot be null');
+        }
         $this->container['id'] = $id;
 
         return $this;
diff --git a/codegen/Crm/Objects/PostalMail/Model/SimplePublicObjectInput.php b/codegen/Crm/Objects/PostalMail/Model/SimplePublicObjectInput.php
index 0ec4947e..69e948f5 100644
--- a/codegen/Crm/Objects/PostalMail/Model/SimplePublicObjectInput.php
+++ b/codegen/Crm/Objects/PostalMail/Model/SimplePublicObjectInput.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -71,6 +71,22 @@ class SimplePublicObjectInput implements ModelInterface, ArrayAccess, \JsonSeria
         'properties' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'properties' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -91,6 +107,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -176,7 +244,25 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['properties'] = $data['properties'] ?? null;
+        $this->setIfExists('properties', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -225,6 +311,9 @@ public function getProperties()
      */
     public function setProperties($properties)
     {
+        if (is_null($properties)) {
+            throw new \InvalidArgumentException('non-nullable properties cannot be null');
+        }
         $this->container['properties'] = $properties;
 
         return $this;
diff --git a/codegen/Crm/Objects/PostalMail/Model/SimplePublicObjectInputForCreate.php b/codegen/Crm/Objects/PostalMail/Model/SimplePublicObjectInputForCreate.php
index 2befada8..ce6b451d 100644
--- a/codegen/Crm/Objects/PostalMail/Model/SimplePublicObjectInputForCreate.php
+++ b/codegen/Crm/Objects/PostalMail/Model/SimplePublicObjectInputForCreate.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -73,6 +73,23 @@ class SimplePublicObjectInputForCreate implements ModelInterface, ArrayAccess, \
         'properties' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'associations' => false,
+        'properties' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -93,6 +110,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -181,8 +250,26 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['associations'] = $data['associations'] ?? null;
-        $this->container['properties'] = $data['properties'] ?? null;
+        $this->setIfExists('associations', $data ?? [], null);
+        $this->setIfExists('properties', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -234,6 +321,9 @@ public function getAssociations()
      */
     public function setAssociations($associations)
     {
+        if (is_null($associations)) {
+            throw new \InvalidArgumentException('non-nullable associations cannot be null');
+        }
         $this->container['associations'] = $associations;
 
         return $this;
@@ -258,6 +348,9 @@ public function getProperties()
      */
     public function setProperties($properties)
     {
+        if (is_null($properties)) {
+            throw new \InvalidArgumentException('non-nullable properties cannot be null');
+        }
         $this->container['properties'] = $properties;
 
         return $this;
diff --git a/codegen/Crm/Objects/PostalMail/Model/SimplePublicObjectWithAssociations.php b/codegen/Crm/Objects/PostalMail/Model/SimplePublicObjectWithAssociations.php
index c1ebcb62..c909c38f 100644
--- a/codegen/Crm/Objects/PostalMail/Model/SimplePublicObjectWithAssociations.php
+++ b/codegen/Crm/Objects/PostalMail/Model/SimplePublicObjectWithAssociations.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -85,6 +85,29 @@ class SimplePublicObjectWithAssociations implements ModelInterface, ArrayAccess,
         'updated_at' => 'date-time'
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'associations' => false,
+        'created_at' => false,
+        'archived' => false,
+        'archived_at' => false,
+        'properties_with_history' => false,
+        'id' => false,
+        'properties' => false,
+        'updated_at' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -105,6 +128,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -211,14 +286,32 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['associations'] = $data['associations'] ?? null;
-        $this->container['created_at'] = $data['created_at'] ?? null;
-        $this->container['archived'] = $data['archived'] ?? null;
-        $this->container['archived_at'] = $data['archived_at'] ?? null;
-        $this->container['properties_with_history'] = $data['properties_with_history'] ?? null;
-        $this->container['id'] = $data['id'] ?? null;
-        $this->container['properties'] = $data['properties'] ?? null;
-        $this->container['updated_at'] = $data['updated_at'] ?? null;
+        $this->setIfExists('associations', $data ?? [], null);
+        $this->setIfExists('created_at', $data ?? [], null);
+        $this->setIfExists('archived', $data ?? [], null);
+        $this->setIfExists('archived_at', $data ?? [], null);
+        $this->setIfExists('properties_with_history', $data ?? [], null);
+        $this->setIfExists('id', $data ?? [], null);
+        $this->setIfExists('properties', $data ?? [], null);
+        $this->setIfExists('updated_at', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -276,6 +369,9 @@ public function getAssociations()
      */
     public function setAssociations($associations)
     {
+        if (is_null($associations)) {
+            throw new \InvalidArgumentException('non-nullable associations cannot be null');
+        }
         $this->container['associations'] = $associations;
 
         return $this;
@@ -300,6 +396,9 @@ public function getCreatedAt()
      */
     public function setCreatedAt($created_at)
     {
+        if (is_null($created_at)) {
+            throw new \InvalidArgumentException('non-nullable created_at cannot be null');
+        }
         $this->container['created_at'] = $created_at;
 
         return $this;
@@ -324,6 +423,9 @@ public function getArchived()
      */
     public function setArchived($archived)
     {
+        if (is_null($archived)) {
+            throw new \InvalidArgumentException('non-nullable archived cannot be null');
+        }
         $this->container['archived'] = $archived;
 
         return $this;
@@ -348,6 +450,9 @@ public function getArchivedAt()
      */
     public function setArchivedAt($archived_at)
     {
+        if (is_null($archived_at)) {
+            throw new \InvalidArgumentException('non-nullable archived_at cannot be null');
+        }
         $this->container['archived_at'] = $archived_at;
 
         return $this;
@@ -372,6 +477,9 @@ public function getPropertiesWithHistory()
      */
     public function setPropertiesWithHistory($properties_with_history)
     {
+        if (is_null($properties_with_history)) {
+            throw new \InvalidArgumentException('non-nullable properties_with_history cannot be null');
+        }
         $this->container['properties_with_history'] = $properties_with_history;
 
         return $this;
@@ -396,6 +504,9 @@ public function getId()
      */
     public function setId($id)
     {
+        if (is_null($id)) {
+            throw new \InvalidArgumentException('non-nullable id cannot be null');
+        }
         $this->container['id'] = $id;
 
         return $this;
@@ -420,6 +531,9 @@ public function getProperties()
      */
     public function setProperties($properties)
     {
+        if (is_null($properties)) {
+            throw new \InvalidArgumentException('non-nullable properties cannot be null');
+        }
         $this->container['properties'] = $properties;
 
         return $this;
@@ -444,6 +558,9 @@ public function getUpdatedAt()
      */
     public function setUpdatedAt($updated_at)
     {
+        if (is_null($updated_at)) {
+            throw new \InvalidArgumentException('non-nullable updated_at cannot be null');
+        }
         $this->container['updated_at'] = $updated_at;
 
         return $this;
diff --git a/codegen/Crm/Objects/PostalMail/Model/StandardError.php b/codegen/Crm/Objects/PostalMail/Model/StandardError.php
index 31efd109..8c5d2579 100644
--- a/codegen/Crm/Objects/PostalMail/Model/StandardError.php
+++ b/codegen/Crm/Objects/PostalMail/Model/StandardError.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -85,6 +85,29 @@ class StandardError implements ModelInterface, ArrayAccess, \JsonSerializable
         'status' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'sub_category' => false,
+        'context' => false,
+        'links' => false,
+        'id' => false,
+        'category' => false,
+        'message' => false,
+        'errors' => false,
+        'status' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -105,6 +128,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -211,14 +286,32 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['sub_category'] = $data['sub_category'] ?? null;
-        $this->container['context'] = $data['context'] ?? null;
-        $this->container['links'] = $data['links'] ?? null;
-        $this->container['id'] = $data['id'] ?? null;
-        $this->container['category'] = $data['category'] ?? null;
-        $this->container['message'] = $data['message'] ?? null;
-        $this->container['errors'] = $data['errors'] ?? null;
-        $this->container['status'] = $data['status'] ?? null;
+        $this->setIfExists('sub_category', $data ?? [], null);
+        $this->setIfExists('context', $data ?? [], null);
+        $this->setIfExists('links', $data ?? [], null);
+        $this->setIfExists('id', $data ?? [], null);
+        $this->setIfExists('category', $data ?? [], null);
+        $this->setIfExists('message', $data ?? [], null);
+        $this->setIfExists('errors', $data ?? [], null);
+        $this->setIfExists('status', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -282,6 +375,9 @@ public function getSubCategory()
      */
     public function setSubCategory($sub_category)
     {
+        if (is_null($sub_category)) {
+            throw new \InvalidArgumentException('non-nullable sub_category cannot be null');
+        }
         $this->container['sub_category'] = $sub_category;
 
         return $this;
@@ -306,6 +402,9 @@ public function getContext()
      */
     public function setContext($context)
     {
+        if (is_null($context)) {
+            throw new \InvalidArgumentException('non-nullable context cannot be null');
+        }
         $this->container['context'] = $context;
 
         return $this;
@@ -330,6 +429,9 @@ public function getLinks()
      */
     public function setLinks($links)
     {
+        if (is_null($links)) {
+            throw new \InvalidArgumentException('non-nullable links cannot be null');
+        }
         $this->container['links'] = $links;
 
         return $this;
@@ -354,6 +456,9 @@ public function getId()
      */
     public function setId($id)
     {
+        if (is_null($id)) {
+            throw new \InvalidArgumentException('non-nullable id cannot be null');
+        }
         $this->container['id'] = $id;
 
         return $this;
@@ -378,6 +483,9 @@ public function getCategory()
      */
     public function setCategory($category)
     {
+        if (is_null($category)) {
+            throw new \InvalidArgumentException('non-nullable category cannot be null');
+        }
         $this->container['category'] = $category;
 
         return $this;
@@ -402,6 +510,9 @@ public function getMessage()
      */
     public function setMessage($message)
     {
+        if (is_null($message)) {
+            throw new \InvalidArgumentException('non-nullable message cannot be null');
+        }
         $this->container['message'] = $message;
 
         return $this;
@@ -426,6 +537,9 @@ public function getErrors()
      */
     public function setErrors($errors)
     {
+        if (is_null($errors)) {
+            throw new \InvalidArgumentException('non-nullable errors cannot be null');
+        }
         $this->container['errors'] = $errors;
 
         return $this;
@@ -450,6 +564,9 @@ public function getStatus()
      */
     public function setStatus($status)
     {
+        if (is_null($status)) {
+            throw new \InvalidArgumentException('non-nullable status cannot be null');
+        }
         $this->container['status'] = $status;
 
         return $this;
diff --git a/codegen/Crm/Objects/PostalMail/Model/ValueWithTimestamp.php b/codegen/Crm/Objects/PostalMail/Model/ValueWithTimestamp.php
index 7ebbc2cd..79241f4e 100644
--- a/codegen/Crm/Objects/PostalMail/Model/ValueWithTimestamp.php
+++ b/codegen/Crm/Objects/PostalMail/Model/ValueWithTimestamp.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -81,6 +81,27 @@ class ValueWithTimestamp implements ModelInterface, ArrayAccess, \JsonSerializab
         'timestamp' => 'date-time'
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'source_id' => false,
+        'source_type' => false,
+        'source_label' => false,
+        'updated_by_user_id' => false,
+        'value' => false,
+        'timestamp' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -101,6 +122,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -201,12 +274,30 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['source_id'] = $data['source_id'] ?? null;
-        $this->container['source_type'] = $data['source_type'] ?? null;
-        $this->container['source_label'] = $data['source_label'] ?? null;
-        $this->container['updated_by_user_id'] = $data['updated_by_user_id'] ?? null;
-        $this->container['value'] = $data['value'] ?? null;
-        $this->container['timestamp'] = $data['timestamp'] ?? null;
+        $this->setIfExists('source_id', $data ?? [], null);
+        $this->setIfExists('source_type', $data ?? [], null);
+        $this->setIfExists('source_label', $data ?? [], null);
+        $this->setIfExists('updated_by_user_id', $data ?? [], null);
+        $this->setIfExists('value', $data ?? [], null);
+        $this->setIfExists('timestamp', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -261,6 +352,9 @@ public function getSourceId()
      */
     public function setSourceId($source_id)
     {
+        if (is_null($source_id)) {
+            throw new \InvalidArgumentException('non-nullable source_id cannot be null');
+        }
         $this->container['source_id'] = $source_id;
 
         return $this;
@@ -285,6 +379,9 @@ public function getSourceType()
      */
     public function setSourceType($source_type)
     {
+        if (is_null($source_type)) {
+            throw new \InvalidArgumentException('non-nullable source_type cannot be null');
+        }
         $this->container['source_type'] = $source_type;
 
         return $this;
@@ -309,6 +406,9 @@ public function getSourceLabel()
      */
     public function setSourceLabel($source_label)
     {
+        if (is_null($source_label)) {
+            throw new \InvalidArgumentException('non-nullable source_label cannot be null');
+        }
         $this->container['source_label'] = $source_label;
 
         return $this;
@@ -333,6 +433,9 @@ public function getUpdatedByUserId()
      */
     public function setUpdatedByUserId($updated_by_user_id)
     {
+        if (is_null($updated_by_user_id)) {
+            throw new \InvalidArgumentException('non-nullable updated_by_user_id cannot be null');
+        }
         $this->container['updated_by_user_id'] = $updated_by_user_id;
 
         return $this;
@@ -357,6 +460,9 @@ public function getValue()
      */
     public function setValue($value)
     {
+        if (is_null($value)) {
+            throw new \InvalidArgumentException('non-nullable value cannot be null');
+        }
         $this->container['value'] = $value;
 
         return $this;
@@ -381,6 +487,9 @@ public function getTimestamp()
      */
     public function setTimestamp($timestamp)
     {
+        if (is_null($timestamp)) {
+            throw new \InvalidArgumentException('non-nullable timestamp cannot be null');
+        }
         $this->container['timestamp'] = $timestamp;
 
         return $this;
diff --git a/codegen/Crm/Objects/PostalMail/ObjectSerializer.php b/codegen/Crm/Objects/PostalMail/ObjectSerializer.php
index f0600d49..12c730c4 100644
--- a/codegen/Crm/Objects/PostalMail/ObjectSerializer.php
+++ b/codegen/Crm/Objects/PostalMail/ObjectSerializer.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -87,7 +87,7 @@ public static function sanitizeForSerialization($data, $type = null, $format = n
                 foreach ($data::openAPITypes() as $property => $openAPIType) {
                     $getter = $data::getters()[$property];
                     $value = $data->$getter();
-                    if ($value !== null && !in_array($openAPIType, ['\DateTime', '\SplFileObject', 'array', 'bool', 'boolean', 'byte', 'double', 'float', 'int', 'integer', 'mixed', 'number', 'object', 'string', 'void'], true)) {
+                    if ($value !== null && !in_array($openAPIType, ['\DateTime', '\SplFileObject', 'array', 'bool', 'boolean', 'byte', 'float', 'int', 'integer', 'mixed', 'number', 'object', 'string', 'void'], true)) {
                         $callable = [$openAPIType, 'getAllowableEnumValues'];
                         if (is_callable($callable)) {
                             /** array $callable */
@@ -98,7 +98,7 @@ public static function sanitizeForSerialization($data, $type = null, $format = n
                             }
                         }
                     }
-                    if ($value !== null) {
+                    if (($data::isNullable($property) && $data->isNullableSetToNull($property)) || $value !== null) {
                         $values[$data::attributeMap()[$property]] = self::sanitizeForSerialization($value, $openAPIType, $formats[$property]);
                     }
                 }
@@ -157,6 +157,49 @@ public static function toPathValue($value)
         return rawurlencode(self::toString($value));
     }
 
+    /**
+     * Checks if a value is empty, based on its OpenAPI type.
+     *
+     * @param mixed  $value
+     * @param string $openApiType
+     *
+     * @return bool true if $value is empty
+     */
+    private static function isEmptyValue($value, string $openApiType): bool
+    {
+        # If empty() returns false, it is not empty regardless of its type.
+        if (!empty($value)) {
+            return false;
+        }
+
+        # Null is always empty, as we cannot send a real "null" value in a query parameter.
+        if ($value === null) {
+            return true;
+        }
+
+        switch ($openApiType) {
+            # For numeric values, false and '' are considered empty.
+            # This comparison is safe for floating point values, since the previous call to empty() will
+            # filter out values that don't match 0.
+            case 'int':
+            case 'integer':
+                return $value !== 0;
+
+            case 'number':
+            case 'float':
+                return $value !== 0 && $value !== 0.0;
+
+            # For boolean values, '' is considered empty
+            case 'bool':
+            case 'boolean':
+                return !in_array($value, [false, 0], true);
+
+            # For all the other types, any value at this point can be considered empty.
+            default:
+                return true;
+        }
+    }
+
     /**
      * Take query parameter properties and turn it into an array suitable for
      * native http_build_query or GuzzleHttp\Psr7\Query::build.
@@ -178,10 +221,12 @@ public static function toQueryValue(
         bool $explode = true,
         bool $required = true
     ): array {
-        if (
-            empty($value)
-            && ($value !== false || $openApiType !== 'boolean') // if $value === false and $openApiType ==='boolean' it isn't empty
-        ) {
+
+        # Check if we should omit this parameter from the query. This should only happen when:
+        #  - Parameter is NOT required; AND
+        #  - its value is set to a value that is equivalent to "empty", depending on its OpenAPI type. For
+        #    example, 0 as "int" or "boolean" is NOT an empty value.
+        if (self::isEmptyValue($value, $openApiType)) {
             if ($required) {
                 return ["{$paramName}" => ''];
             } else {
@@ -189,6 +234,11 @@ public static function toQueryValue(
             }
         }
 
+        # Handle DateTime objects in query
+        if($openApiType === "\\DateTime" && $value instanceof \DateTime) {
+            return ["{$paramName}" => $value->format(self::$dateTimeFormat)];
+        }
+
         $query = [];
         $value = (in_array($openApiType, ['object', 'array'], true)) ? (array)$value : $value;
 
@@ -395,7 +445,7 @@ public static function deserialize($data, $class, $httpHeaders = null)
         }
 
         if ($class === '\DateTime') {
-            // Some API's return an invalid, empty string as a
+            // Some APIs return an invalid, empty string as a
             // date-time property. DateTime::__construct() will return
             // the current time for empty input which is probably not
             // what is meant. The invalid empty string is probably to
@@ -405,7 +455,7 @@ public static function deserialize($data, $class, $httpHeaders = null)
                 try {
                     return new \DateTime($data);
                 } catch (\Exception $exception) {
-                    // Some API's return a date-time with too high nanosecond
+                    // Some APIs return a date-time with too high nanosecond
                     // precision for php's DateTime to handle.
                     // With provided regexp 6 digits of microseconds saved
                     return new \DateTime(self::sanitizeTimestamp($data));
@@ -441,7 +491,7 @@ public static function deserialize($data, $class, $httpHeaders = null)
         }
 
         /** @psalm-suppress ParadoxicalCondition */
-        if (in_array($class, ['\DateTime', '\SplFileObject', 'array', 'bool', 'boolean', 'byte', 'double', 'float', 'int', 'integer', 'mixed', 'number', 'object', 'string', 'void'], true)) {
+        if (in_array($class, ['\DateTime', '\SplFileObject', 'array', 'bool', 'boolean', 'byte', 'float', 'int', 'integer', 'mixed', 'number', 'object', 'string', 'void'], true)) {
             settype($data, $class);
             return $data;
         }
@@ -455,6 +505,11 @@ public static function deserialize($data, $class, $httpHeaders = null)
             return $data;
         } else {
             $data = is_string($data) ? json_decode($data) : $data;
+
+            if (is_array($data)) {
+                $data = (object)$data;
+            }
+
             // If a discriminator is defined and points to a valid subclass, use it.
             $discriminator = $class::DISCRIMINATOR;
             if (!empty($discriminator) && isset($data->{$discriminator}) && is_string($data->{$discriminator})) {
@@ -469,7 +524,15 @@ public static function deserialize($data, $class, $httpHeaders = null)
             foreach ($instance::openAPITypes() as $property => $type) {
                 $propertySetter = $instance::setters()[$property];
 
-                if (!isset($propertySetter) || !isset($data->{$instance::attributeMap()[$property]})) {
+                if (!isset($propertySetter)) {
+                    continue;
+                }
+
+                if (!isset($data->{$instance::attributeMap()[$property]})) {
+                    if ($instance::isNullable($property)) {
+                        $instance->$propertySetter(null);
+                    }
+
                     continue;
                 }
 
diff --git a/codegen/Crm/Objects/Tasks/Api/BasicApi.php b/codegen/Crm/Objects/Tasks/Api/BasicApi.php
index 725fdaeb..b67cfa0d 100644
--- a/codegen/Crm/Objects/Tasks/Api/BasicApi.php
+++ b/codegen/Crm/Objects/Tasks/Api/BasicApi.php
@@ -16,7 +16,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -69,6 +69,25 @@ class BasicApi
      */
     protected $hostIndex;
 
+    /** @var string[] $contentTypes **/
+    public const contentTypes = [
+        'archive' => [
+            'application/json',
+        ],
+        'create' => [
+            'application/json',
+        ],
+        'getById' => [
+            'application/json',
+        ],
+        'getPage' => [
+            'application/json',
+        ],
+        'update' => [
+            'application/json',
+        ],
+    ];
+
     /**
      * @param ClientInterface $client
      * @param Configuration   $config
@@ -121,14 +140,15 @@ public function getConfig()
      * Archive
      *
      * @param  string $task_id task_id (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['archive'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Tasks\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Tasks\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return void
      */
-    public function archive($task_id)
+    public function archive($task_id, string $contentType = self::contentTypes['archive'][0])
     {
-        $this->archiveWithHttpInfo($task_id);
+        $this->archiveWithHttpInfo($task_id, $contentType);
     }
 
     /**
@@ -137,14 +157,15 @@ public function archive($task_id)
      * Archive
      *
      * @param  string $task_id (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['archive'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Tasks\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Tasks\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return array of null, HTTP status code, HTTP response headers (array of strings)
      */
-    public function archiveWithHttpInfo($task_id)
+    public function archiveWithHttpInfo($task_id, string $contentType = self::contentTypes['archive'][0])
     {
-        $request = $this->archiveRequest($task_id);
+        $request = $this->archiveRequest($task_id, $contentType);
 
         try {
             $options = $this->createHttpClientOption();
@@ -204,13 +225,14 @@ public function archiveWithHttpInfo($task_id)
      * Archive
      *
      * @param  string $task_id (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['archive'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function archiveAsync($task_id)
+    public function archiveAsync($task_id, string $contentType = self::contentTypes['archive'][0])
     {
-        return $this->archiveAsyncWithHttpInfo($task_id)
+        return $this->archiveAsyncWithHttpInfo($task_id, $contentType)
             ->then(
                 function ($response) {
                     return $response[0];
@@ -224,14 +246,15 @@ function ($response) {
      * Archive
      *
      * @param  string $task_id (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['archive'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function archiveAsyncWithHttpInfo($task_id)
+    public function archiveAsyncWithHttpInfo($task_id, string $contentType = self::contentTypes['archive'][0])
     {
         $returnType = '';
-        $request = $this->archiveRequest($task_id);
+        $request = $this->archiveRequest($task_id, $contentType);
 
         return $this->client
             ->sendAsync($request, $this->createHttpClientOption())
@@ -260,12 +283,14 @@ function ($exception) {
      * Create request for operation 'archive'
      *
      * @param  string $task_id (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['archive'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Psr7\Request
      */
-    public function archiveRequest($task_id)
+    public function archiveRequest($task_id, string $contentType = self::contentTypes['archive'][0])
     {
+
         // verify the required parameter 'task_id' is set
         if ($task_id === null || (is_array($task_id) && count($task_id) === 0)) {
             throw new \InvalidArgumentException(
@@ -273,6 +298,7 @@ public function archiveRequest($task_id)
             );
         }
 
+
         $resourcePath = '/crm/v3/objects/tasks/{taskId}';
         $formParams = [];
         $queryParams = [];
@@ -292,16 +318,11 @@ public function archiveRequest($task_id)
         }
 
 
-        if ($multipart) {
-            $headers = $this->headerSelector->selectHeadersForMultipart(
-                ['*/*']
-            );
-        } else {
-            $headers = $this->headerSelector->selectHeaders(
-                ['*/*'],
-                []
-            );
-        }
+        $headers = $this->headerSelector->selectHeaders(
+            ['*/*', ],
+            $contentType,
+            $multipart
+        );
 
         // for model (json/xml)
         if (count($formParams) > 0) {
@@ -319,9 +340,9 @@ public function archiveRequest($task_id)
                 // for HTTP post (form)
                 $httpBody = new MultipartStream($multipartContents);
 
-            } elseif ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode($formParams);
-
+            } elseif (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the form parameters
+                $httpBody = \GuzzleHttp\Utils::jsonEncode($formParams);
             } else {
                 // for HTTP post (form)
                 $httpBody = ObjectSerializer::buildQuery($formParams);
@@ -344,10 +365,11 @@ public function archiveRequest($task_id)
             $headers
         );
 
+        $operationHost = $this->config->getHost();
         $query = ObjectSerializer::buildQuery($queryParams);
         return new Request(
             'DELETE',
-            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
+            $operationHost . $resourcePath . ($query ? "?{$query}" : ''),
             $headers,
             $httpBody
         );
@@ -359,14 +381,15 @@ public function archiveRequest($task_id)
      * Create
      *
      * @param  \HubSpot\Client\Crm\Objects\Tasks\Model\SimplePublicObjectInputForCreate $simple_public_object_input_for_create simple_public_object_input_for_create (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['create'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Tasks\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Tasks\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return \HubSpot\Client\Crm\Objects\Tasks\Model\SimplePublicObject|\HubSpot\Client\Crm\Objects\Tasks\Model\Error
      */
-    public function create($simple_public_object_input_for_create)
+    public function create($simple_public_object_input_for_create, string $contentType = self::contentTypes['create'][0])
     {
-        list($response) = $this->createWithHttpInfo($simple_public_object_input_for_create);
+        list($response) = $this->createWithHttpInfo($simple_public_object_input_for_create, $contentType);
         return $response;
     }
 
@@ -376,14 +399,15 @@ public function create($simple_public_object_input_for_create)
      * Create
      *
      * @param  \HubSpot\Client\Crm\Objects\Tasks\Model\SimplePublicObjectInputForCreate $simple_public_object_input_for_create (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['create'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Tasks\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Tasks\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return array of \HubSpot\Client\Crm\Objects\Tasks\Model\SimplePublicObject|\HubSpot\Client\Crm\Objects\Tasks\Model\Error, HTTP status code, HTTP response headers (array of strings)
      */
-    public function createWithHttpInfo($simple_public_object_input_for_create)
+    public function createWithHttpInfo($simple_public_object_input_for_create, string $contentType = self::contentTypes['create'][0])
     {
-        $request = $this->createRequest($simple_public_object_input_for_create);
+        $request = $this->createRequest($simple_public_object_input_for_create, $contentType);
 
         try {
             $options = $this->createHttpClientOption();
@@ -427,7 +451,19 @@ public function createWithHttpInfo($simple_public_object_input_for_create)
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Tasks\Model\SimplePublicObject' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -442,7 +478,19 @@ public function createWithHttpInfo($simple_public_object_input_for_create)
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Tasks\Model\Error' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -459,7 +507,19 @@ public function createWithHttpInfo($simple_public_object_input_for_create)
             } else {
                 $content = (string) $response->getBody();
                 if ($returnType !== 'string') {
-                    $content = json_decode($content);
+                    try {
+                        $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                    } catch (\JsonException $exception) {
+                        throw new ApiException(
+                            sprintf(
+                                'Error JSON decoding server response (%s)',
+                                $request->getUri()
+                            ),
+                            $statusCode,
+                            $response->getHeaders(),
+                            $content
+                        );
+                    }
                 }
             }
 
@@ -498,13 +558,14 @@ public function createWithHttpInfo($simple_public_object_input_for_create)
      * Create
      *
      * @param  \HubSpot\Client\Crm\Objects\Tasks\Model\SimplePublicObjectInputForCreate $simple_public_object_input_for_create (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['create'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function createAsync($simple_public_object_input_for_create)
+    public function createAsync($simple_public_object_input_for_create, string $contentType = self::contentTypes['create'][0])
     {
-        return $this->createAsyncWithHttpInfo($simple_public_object_input_for_create)
+        return $this->createAsyncWithHttpInfo($simple_public_object_input_for_create, $contentType)
             ->then(
                 function ($response) {
                     return $response[0];
@@ -518,14 +579,15 @@ function ($response) {
      * Create
      *
      * @param  \HubSpot\Client\Crm\Objects\Tasks\Model\SimplePublicObjectInputForCreate $simple_public_object_input_for_create (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['create'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function createAsyncWithHttpInfo($simple_public_object_input_for_create)
+    public function createAsyncWithHttpInfo($simple_public_object_input_for_create, string $contentType = self::contentTypes['create'][0])
     {
         $returnType = '\HubSpot\Client\Crm\Objects\Tasks\Model\SimplePublicObject';
-        $request = $this->createRequest($simple_public_object_input_for_create);
+        $request = $this->createRequest($simple_public_object_input_for_create, $contentType);
 
         return $this->client
             ->sendAsync($request, $this->createHttpClientOption())
@@ -567,12 +629,14 @@ function ($exception) {
      * Create request for operation 'create'
      *
      * @param  \HubSpot\Client\Crm\Objects\Tasks\Model\SimplePublicObjectInputForCreate $simple_public_object_input_for_create (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['create'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Psr7\Request
      */
-    public function createRequest($simple_public_object_input_for_create)
+    public function createRequest($simple_public_object_input_for_create, string $contentType = self::contentTypes['create'][0])
     {
+
         // verify the required parameter 'simple_public_object_input_for_create' is set
         if ($simple_public_object_input_for_create === null || (is_array($simple_public_object_input_for_create) && count($simple_public_object_input_for_create) === 0)) {
             throw new \InvalidArgumentException(
@@ -580,6 +644,7 @@ public function createRequest($simple_public_object_input_for_create)
             );
         }
 
+
         $resourcePath = '/crm/v3/objects/tasks';
         $formParams = [];
         $queryParams = [];
@@ -591,21 +656,17 @@ public function createRequest($simple_public_object_input_for_create)
 
 
 
-        if ($multipart) {
-            $headers = $this->headerSelector->selectHeadersForMultipart(
-                ['application/json', '*/*']
-            );
-        } else {
-            $headers = $this->headerSelector->selectHeaders(
-                ['application/json', '*/*'],
-                ['application/json']
-            );
-        }
+        $headers = $this->headerSelector->selectHeaders(
+            ['application/json', '*/*', ],
+            $contentType,
+            $multipart
+        );
 
         // for model (json/xml)
         if (isset($simple_public_object_input_for_create)) {
-            if ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode(ObjectSerializer::sanitizeForSerialization($simple_public_object_input_for_create));
+            if (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the body
+                $httpBody = \GuzzleHttp\Utils::jsonEncode(ObjectSerializer::sanitizeForSerialization($simple_public_object_input_for_create));
             } else {
                 $httpBody = $simple_public_object_input_for_create;
             }
@@ -624,9 +685,9 @@ public function createRequest($simple_public_object_input_for_create)
                 // for HTTP post (form)
                 $httpBody = new MultipartStream($multipartContents);
 
-            } elseif ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode($formParams);
-
+            } elseif (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the form parameters
+                $httpBody = \GuzzleHttp\Utils::jsonEncode($formParams);
             } else {
                 // for HTTP post (form)
                 $httpBody = ObjectSerializer::buildQuery($formParams);
@@ -649,10 +710,11 @@ public function createRequest($simple_public_object_input_for_create)
             $headers
         );
 
+        $operationHost = $this->config->getHost();
         $query = ObjectSerializer::buildQuery($queryParams);
         return new Request(
             'POST',
-            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
+            $operationHost . $resourcePath . ($query ? "?{$query}" : ''),
             $headers,
             $httpBody
         );
@@ -669,14 +731,15 @@ public function createRequest($simple_public_object_input_for_create)
      * @param  string[] $associations A comma separated list of object types to retrieve associated IDs for. If any of the specified associations do not exist, they will be ignored. (optional)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
      * @param  string $id_property The name of a property whose values are unique for this object type (optional)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['getById'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Tasks\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Tasks\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return \HubSpot\Client\Crm\Objects\Tasks\Model\SimplePublicObjectWithAssociations|\HubSpot\Client\Crm\Objects\Tasks\Model\Error
      */
-    public function getById($task_id, $properties = null, $properties_with_history = null, $associations = null, $archived = false, $id_property = null)
+    public function getById($task_id, $properties = null, $properties_with_history = null, $associations = null, $archived = false, $id_property = null, string $contentType = self::contentTypes['getById'][0])
     {
-        list($response) = $this->getByIdWithHttpInfo($task_id, $properties, $properties_with_history, $associations, $archived, $id_property);
+        list($response) = $this->getByIdWithHttpInfo($task_id, $properties, $properties_with_history, $associations, $archived, $id_property, $contentType);
         return $response;
     }
 
@@ -691,14 +754,15 @@ public function getById($task_id, $properties = null, $properties_with_history =
      * @param  string[] $associations A comma separated list of object types to retrieve associated IDs for. If any of the specified associations do not exist, they will be ignored. (optional)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
      * @param  string $id_property The name of a property whose values are unique for this object type (optional)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['getById'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Tasks\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Tasks\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return array of \HubSpot\Client\Crm\Objects\Tasks\Model\SimplePublicObjectWithAssociations|\HubSpot\Client\Crm\Objects\Tasks\Model\Error, HTTP status code, HTTP response headers (array of strings)
      */
-    public function getByIdWithHttpInfo($task_id, $properties = null, $properties_with_history = null, $associations = null, $archived = false, $id_property = null)
+    public function getByIdWithHttpInfo($task_id, $properties = null, $properties_with_history = null, $associations = null, $archived = false, $id_property = null, string $contentType = self::contentTypes['getById'][0])
     {
-        $request = $this->getByIdRequest($task_id, $properties, $properties_with_history, $associations, $archived, $id_property);
+        $request = $this->getByIdRequest($task_id, $properties, $properties_with_history, $associations, $archived, $id_property, $contentType);
 
         try {
             $options = $this->createHttpClientOption();
@@ -742,7 +806,19 @@ public function getByIdWithHttpInfo($task_id, $properties = null, $properties_wi
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Tasks\Model\SimplePublicObjectWithAssociations' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -757,7 +833,19 @@ public function getByIdWithHttpInfo($task_id, $properties = null, $properties_wi
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Tasks\Model\Error' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -774,7 +862,19 @@ public function getByIdWithHttpInfo($task_id, $properties = null, $properties_wi
             } else {
                 $content = (string) $response->getBody();
                 if ($returnType !== 'string') {
-                    $content = json_decode($content);
+                    try {
+                        $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                    } catch (\JsonException $exception) {
+                        throw new ApiException(
+                            sprintf(
+                                'Error JSON decoding server response (%s)',
+                                $request->getUri()
+                            ),
+                            $statusCode,
+                            $response->getHeaders(),
+                            $content
+                        );
+                    }
                 }
             }
 
@@ -818,13 +918,14 @@ public function getByIdWithHttpInfo($task_id, $properties = null, $properties_wi
      * @param  string[] $associations A comma separated list of object types to retrieve associated IDs for. If any of the specified associations do not exist, they will be ignored. (optional)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
      * @param  string $id_property The name of a property whose values are unique for this object type (optional)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['getById'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function getByIdAsync($task_id, $properties = null, $properties_with_history = null, $associations = null, $archived = false, $id_property = null)
+    public function getByIdAsync($task_id, $properties = null, $properties_with_history = null, $associations = null, $archived = false, $id_property = null, string $contentType = self::contentTypes['getById'][0])
     {
-        return $this->getByIdAsyncWithHttpInfo($task_id, $properties, $properties_with_history, $associations, $archived, $id_property)
+        return $this->getByIdAsyncWithHttpInfo($task_id, $properties, $properties_with_history, $associations, $archived, $id_property, $contentType)
             ->then(
                 function ($response) {
                     return $response[0];
@@ -843,14 +944,15 @@ function ($response) {
      * @param  string[] $associations A comma separated list of object types to retrieve associated IDs for. If any of the specified associations do not exist, they will be ignored. (optional)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
      * @param  string $id_property The name of a property whose values are unique for this object type (optional)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['getById'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function getByIdAsyncWithHttpInfo($task_id, $properties = null, $properties_with_history = null, $associations = null, $archived = false, $id_property = null)
+    public function getByIdAsyncWithHttpInfo($task_id, $properties = null, $properties_with_history = null, $associations = null, $archived = false, $id_property = null, string $contentType = self::contentTypes['getById'][0])
     {
         $returnType = '\HubSpot\Client\Crm\Objects\Tasks\Model\SimplePublicObjectWithAssociations';
-        $request = $this->getByIdRequest($task_id, $properties, $properties_with_history, $associations, $archived, $id_property);
+        $request = $this->getByIdRequest($task_id, $properties, $properties_with_history, $associations, $archived, $id_property, $contentType);
 
         return $this->client
             ->sendAsync($request, $this->createHttpClientOption())
@@ -897,12 +999,14 @@ function ($exception) {
      * @param  string[] $associations A comma separated list of object types to retrieve associated IDs for. If any of the specified associations do not exist, they will be ignored. (optional)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
      * @param  string $id_property The name of a property whose values are unique for this object type (optional)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['getById'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Psr7\Request
      */
-    public function getByIdRequest($task_id, $properties = null, $properties_with_history = null, $associations = null, $archived = false, $id_property = null)
+    public function getByIdRequest($task_id, $properties = null, $properties_with_history = null, $associations = null, $archived = false, $id_property = null, string $contentType = self::contentTypes['getById'][0])
     {
+
         // verify the required parameter 'task_id' is set
         if ($task_id === null || (is_array($task_id) && count($task_id) === 0)) {
             throw new \InvalidArgumentException(
@@ -910,6 +1014,12 @@ public function getByIdRequest($task_id, $properties = null, $properties_with_hi
             );
         }
 
+
+
+
+
+
+
         $resourcePath = '/crm/v3/objects/tasks/{taskId}';
         $formParams = [];
         $queryParams = [];
@@ -974,16 +1084,11 @@ public function getByIdRequest($task_id, $properties = null, $properties_with_hi
         }
 
 
-        if ($multipart) {
-            $headers = $this->headerSelector->selectHeadersForMultipart(
-                ['application/json', '*/*']
-            );
-        } else {
-            $headers = $this->headerSelector->selectHeaders(
-                ['application/json', '*/*'],
-                []
-            );
-        }
+        $headers = $this->headerSelector->selectHeaders(
+            ['application/json', '*/*', ],
+            $contentType,
+            $multipart
+        );
 
         // for model (json/xml)
         if (count($formParams) > 0) {
@@ -1001,9 +1106,9 @@ public function getByIdRequest($task_id, $properties = null, $properties_with_hi
                 // for HTTP post (form)
                 $httpBody = new MultipartStream($multipartContents);
 
-            } elseif ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode($formParams);
-
+            } elseif (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the form parameters
+                $httpBody = \GuzzleHttp\Utils::jsonEncode($formParams);
             } else {
                 // for HTTP post (form)
                 $httpBody = ObjectSerializer::buildQuery($formParams);
@@ -1026,10 +1131,11 @@ public function getByIdRequest($task_id, $properties = null, $properties_with_hi
             $headers
         );
 
+        $operationHost = $this->config->getHost();
         $query = ObjectSerializer::buildQuery($queryParams);
         return new Request(
             'GET',
-            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
+            $operationHost . $resourcePath . ($query ? "?{$query}" : ''),
             $headers,
             $httpBody
         );
@@ -1046,14 +1152,15 @@ public function getByIdRequest($task_id, $properties = null, $properties_with_hi
      * @param  string[] $properties_with_history A comma separated list of the properties to be returned along with their history of previous values. If any of the specified properties are not present on the requested object(s), they will be ignored. Usage of this parameter will reduce the maximum number of objects that can be read by a single request. (optional)
      * @param  string[] $associations A comma separated list of object types to retrieve associated IDs for. If any of the specified associations do not exist, they will be ignored. (optional)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['getPage'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Tasks\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Tasks\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return \HubSpot\Client\Crm\Objects\Tasks\Model\CollectionResponseSimplePublicObjectWithAssociationsForwardPaging|\HubSpot\Client\Crm\Objects\Tasks\Model\Error
      */
-    public function getPage($limit = 10, $after = null, $properties = null, $properties_with_history = null, $associations = null, $archived = false)
+    public function getPage($limit = 10, $after = null, $properties = null, $properties_with_history = null, $associations = null, $archived = false, string $contentType = self::contentTypes['getPage'][0])
     {
-        list($response) = $this->getPageWithHttpInfo($limit, $after, $properties, $properties_with_history, $associations, $archived);
+        list($response) = $this->getPageWithHttpInfo($limit, $after, $properties, $properties_with_history, $associations, $archived, $contentType);
         return $response;
     }
 
@@ -1068,14 +1175,15 @@ public function getPage($limit = 10, $after = null, $properties = null, $propert
      * @param  string[] $properties_with_history A comma separated list of the properties to be returned along with their history of previous values. If any of the specified properties are not present on the requested object(s), they will be ignored. Usage of this parameter will reduce the maximum number of objects that can be read by a single request. (optional)
      * @param  string[] $associations A comma separated list of object types to retrieve associated IDs for. If any of the specified associations do not exist, they will be ignored. (optional)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['getPage'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Tasks\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Tasks\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return array of \HubSpot\Client\Crm\Objects\Tasks\Model\CollectionResponseSimplePublicObjectWithAssociationsForwardPaging|\HubSpot\Client\Crm\Objects\Tasks\Model\Error, HTTP status code, HTTP response headers (array of strings)
      */
-    public function getPageWithHttpInfo($limit = 10, $after = null, $properties = null, $properties_with_history = null, $associations = null, $archived = false)
+    public function getPageWithHttpInfo($limit = 10, $after = null, $properties = null, $properties_with_history = null, $associations = null, $archived = false, string $contentType = self::contentTypes['getPage'][0])
     {
-        $request = $this->getPageRequest($limit, $after, $properties, $properties_with_history, $associations, $archived);
+        $request = $this->getPageRequest($limit, $after, $properties, $properties_with_history, $associations, $archived, $contentType);
 
         try {
             $options = $this->createHttpClientOption();
@@ -1119,7 +1227,19 @@ public function getPageWithHttpInfo($limit = 10, $after = null, $properties = nu
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Tasks\Model\CollectionResponseSimplePublicObjectWithAssociationsForwardPaging' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -1134,7 +1254,19 @@ public function getPageWithHttpInfo($limit = 10, $after = null, $properties = nu
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Tasks\Model\Error' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -1151,7 +1283,19 @@ public function getPageWithHttpInfo($limit = 10, $after = null, $properties = nu
             } else {
                 $content = (string) $response->getBody();
                 if ($returnType !== 'string') {
-                    $content = json_decode($content);
+                    try {
+                        $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                    } catch (\JsonException $exception) {
+                        throw new ApiException(
+                            sprintf(
+                                'Error JSON decoding server response (%s)',
+                                $request->getUri()
+                            ),
+                            $statusCode,
+                            $response->getHeaders(),
+                            $content
+                        );
+                    }
                 }
             }
 
@@ -1195,13 +1339,14 @@ public function getPageWithHttpInfo($limit = 10, $after = null, $properties = nu
      * @param  string[] $properties_with_history A comma separated list of the properties to be returned along with their history of previous values. If any of the specified properties are not present on the requested object(s), they will be ignored. Usage of this parameter will reduce the maximum number of objects that can be read by a single request. (optional)
      * @param  string[] $associations A comma separated list of object types to retrieve associated IDs for. If any of the specified associations do not exist, they will be ignored. (optional)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['getPage'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function getPageAsync($limit = 10, $after = null, $properties = null, $properties_with_history = null, $associations = null, $archived = false)
+    public function getPageAsync($limit = 10, $after = null, $properties = null, $properties_with_history = null, $associations = null, $archived = false, string $contentType = self::contentTypes['getPage'][0])
     {
-        return $this->getPageAsyncWithHttpInfo($limit, $after, $properties, $properties_with_history, $associations, $archived)
+        return $this->getPageAsyncWithHttpInfo($limit, $after, $properties, $properties_with_history, $associations, $archived, $contentType)
             ->then(
                 function ($response) {
                     return $response[0];
@@ -1220,14 +1365,15 @@ function ($response) {
      * @param  string[] $properties_with_history A comma separated list of the properties to be returned along with their history of previous values. If any of the specified properties are not present on the requested object(s), they will be ignored. Usage of this parameter will reduce the maximum number of objects that can be read by a single request. (optional)
      * @param  string[] $associations A comma separated list of object types to retrieve associated IDs for. If any of the specified associations do not exist, they will be ignored. (optional)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['getPage'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function getPageAsyncWithHttpInfo($limit = 10, $after = null, $properties = null, $properties_with_history = null, $associations = null, $archived = false)
+    public function getPageAsyncWithHttpInfo($limit = 10, $after = null, $properties = null, $properties_with_history = null, $associations = null, $archived = false, string $contentType = self::contentTypes['getPage'][0])
     {
         $returnType = '\HubSpot\Client\Crm\Objects\Tasks\Model\CollectionResponseSimplePublicObjectWithAssociationsForwardPaging';
-        $request = $this->getPageRequest($limit, $after, $properties, $properties_with_history, $associations, $archived);
+        $request = $this->getPageRequest($limit, $after, $properties, $properties_with_history, $associations, $archived, $contentType);
 
         return $this->client
             ->sendAsync($request, $this->createHttpClientOption())
@@ -1274,13 +1420,21 @@ function ($exception) {
      * @param  string[] $properties_with_history A comma separated list of the properties to be returned along with their history of previous values. If any of the specified properties are not present on the requested object(s), they will be ignored. Usage of this parameter will reduce the maximum number of objects that can be read by a single request. (optional)
      * @param  string[] $associations A comma separated list of object types to retrieve associated IDs for. If any of the specified associations do not exist, they will be ignored. (optional)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['getPage'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Psr7\Request
      */
-    public function getPageRequest($limit = 10, $after = null, $properties = null, $properties_with_history = null, $associations = null, $archived = false)
+    public function getPageRequest($limit = 10, $after = null, $properties = null, $properties_with_history = null, $associations = null, $archived = false, string $contentType = self::contentTypes['getPage'][0])
     {
 
+
+
+
+
+
+
+
         $resourcePath = '/crm/v3/objects/tasks';
         $formParams = [];
         $queryParams = [];
@@ -1346,16 +1500,11 @@ public function getPageRequest($limit = 10, $after = null, $properties = null, $
 
 
 
-        if ($multipart) {
-            $headers = $this->headerSelector->selectHeadersForMultipart(
-                ['application/json', '*/*']
-            );
-        } else {
-            $headers = $this->headerSelector->selectHeaders(
-                ['application/json', '*/*'],
-                []
-            );
-        }
+        $headers = $this->headerSelector->selectHeaders(
+            ['application/json', '*/*', ],
+            $contentType,
+            $multipart
+        );
 
         // for model (json/xml)
         if (count($formParams) > 0) {
@@ -1373,9 +1522,9 @@ public function getPageRequest($limit = 10, $after = null, $properties = null, $
                 // for HTTP post (form)
                 $httpBody = new MultipartStream($multipartContents);
 
-            } elseif ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode($formParams);
-
+            } elseif (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the form parameters
+                $httpBody = \GuzzleHttp\Utils::jsonEncode($formParams);
             } else {
                 // for HTTP post (form)
                 $httpBody = ObjectSerializer::buildQuery($formParams);
@@ -1398,10 +1547,11 @@ public function getPageRequest($limit = 10, $after = null, $properties = null, $
             $headers
         );
 
+        $operationHost = $this->config->getHost();
         $query = ObjectSerializer::buildQuery($queryParams);
         return new Request(
             'GET',
-            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
+            $operationHost . $resourcePath . ($query ? "?{$query}" : ''),
             $headers,
             $httpBody
         );
@@ -1415,14 +1565,15 @@ public function getPageRequest($limit = 10, $after = null, $properties = null, $
      * @param  string $task_id task_id (required)
      * @param  \HubSpot\Client\Crm\Objects\Tasks\Model\SimplePublicObjectInput $simple_public_object_input simple_public_object_input (required)
      * @param  string $id_property The name of a property whose values are unique for this object type (optional)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['update'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Tasks\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Tasks\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return \HubSpot\Client\Crm\Objects\Tasks\Model\SimplePublicObject|\HubSpot\Client\Crm\Objects\Tasks\Model\Error
      */
-    public function update($task_id, $simple_public_object_input, $id_property = null)
+    public function update($task_id, $simple_public_object_input, $id_property = null, string $contentType = self::contentTypes['update'][0])
     {
-        list($response) = $this->updateWithHttpInfo($task_id, $simple_public_object_input, $id_property);
+        list($response) = $this->updateWithHttpInfo($task_id, $simple_public_object_input, $id_property, $contentType);
         return $response;
     }
 
@@ -1434,14 +1585,15 @@ public function update($task_id, $simple_public_object_input, $id_property = nul
      * @param  string $task_id (required)
      * @param  \HubSpot\Client\Crm\Objects\Tasks\Model\SimplePublicObjectInput $simple_public_object_input (required)
      * @param  string $id_property The name of a property whose values are unique for this object type (optional)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['update'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Tasks\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Tasks\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return array of \HubSpot\Client\Crm\Objects\Tasks\Model\SimplePublicObject|\HubSpot\Client\Crm\Objects\Tasks\Model\Error, HTTP status code, HTTP response headers (array of strings)
      */
-    public function updateWithHttpInfo($task_id, $simple_public_object_input, $id_property = null)
+    public function updateWithHttpInfo($task_id, $simple_public_object_input, $id_property = null, string $contentType = self::contentTypes['update'][0])
     {
-        $request = $this->updateRequest($task_id, $simple_public_object_input, $id_property);
+        $request = $this->updateRequest($task_id, $simple_public_object_input, $id_property, $contentType);
 
         try {
             $options = $this->createHttpClientOption();
@@ -1485,7 +1637,19 @@ public function updateWithHttpInfo($task_id, $simple_public_object_input, $id_pr
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Tasks\Model\SimplePublicObject' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -1500,7 +1664,19 @@ public function updateWithHttpInfo($task_id, $simple_public_object_input, $id_pr
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Tasks\Model\Error' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -1517,7 +1693,19 @@ public function updateWithHttpInfo($task_id, $simple_public_object_input, $id_pr
             } else {
                 $content = (string) $response->getBody();
                 if ($returnType !== 'string') {
-                    $content = json_decode($content);
+                    try {
+                        $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                    } catch (\JsonException $exception) {
+                        throw new ApiException(
+                            sprintf(
+                                'Error JSON decoding server response (%s)',
+                                $request->getUri()
+                            ),
+                            $statusCode,
+                            $response->getHeaders(),
+                            $content
+                        );
+                    }
                 }
             }
 
@@ -1558,13 +1746,14 @@ public function updateWithHttpInfo($task_id, $simple_public_object_input, $id_pr
      * @param  string $task_id (required)
      * @param  \HubSpot\Client\Crm\Objects\Tasks\Model\SimplePublicObjectInput $simple_public_object_input (required)
      * @param  string $id_property The name of a property whose values are unique for this object type (optional)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['update'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function updateAsync($task_id, $simple_public_object_input, $id_property = null)
+    public function updateAsync($task_id, $simple_public_object_input, $id_property = null, string $contentType = self::contentTypes['update'][0])
     {
-        return $this->updateAsyncWithHttpInfo($task_id, $simple_public_object_input, $id_property)
+        return $this->updateAsyncWithHttpInfo($task_id, $simple_public_object_input, $id_property, $contentType)
             ->then(
                 function ($response) {
                     return $response[0];
@@ -1580,14 +1769,15 @@ function ($response) {
      * @param  string $task_id (required)
      * @param  \HubSpot\Client\Crm\Objects\Tasks\Model\SimplePublicObjectInput $simple_public_object_input (required)
      * @param  string $id_property The name of a property whose values are unique for this object type (optional)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['update'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function updateAsyncWithHttpInfo($task_id, $simple_public_object_input, $id_property = null)
+    public function updateAsyncWithHttpInfo($task_id, $simple_public_object_input, $id_property = null, string $contentType = self::contentTypes['update'][0])
     {
         $returnType = '\HubSpot\Client\Crm\Objects\Tasks\Model\SimplePublicObject';
-        $request = $this->updateRequest($task_id, $simple_public_object_input, $id_property);
+        $request = $this->updateRequest($task_id, $simple_public_object_input, $id_property, $contentType);
 
         return $this->client
             ->sendAsync($request, $this->createHttpClientOption())
@@ -1631,18 +1821,21 @@ function ($exception) {
      * @param  string $task_id (required)
      * @param  \HubSpot\Client\Crm\Objects\Tasks\Model\SimplePublicObjectInput $simple_public_object_input (required)
      * @param  string $id_property The name of a property whose values are unique for this object type (optional)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['update'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Psr7\Request
      */
-    public function updateRequest($task_id, $simple_public_object_input, $id_property = null)
+    public function updateRequest($task_id, $simple_public_object_input, $id_property = null, string $contentType = self::contentTypes['update'][0])
     {
+
         // verify the required parameter 'task_id' is set
         if ($task_id === null || (is_array($task_id) && count($task_id) === 0)) {
             throw new \InvalidArgumentException(
                 'Missing the required parameter $task_id when calling update'
             );
         }
+
         // verify the required parameter 'simple_public_object_input' is set
         if ($simple_public_object_input === null || (is_array($simple_public_object_input) && count($simple_public_object_input) === 0)) {
             throw new \InvalidArgumentException(
@@ -1650,6 +1843,8 @@ public function updateRequest($task_id, $simple_public_object_input, $id_propert
             );
         }
 
+
+
         $resourcePath = '/crm/v3/objects/tasks/{taskId}';
         $formParams = [];
         $queryParams = [];
@@ -1678,21 +1873,17 @@ public function updateRequest($task_id, $simple_public_object_input, $id_propert
         }
 
 
-        if ($multipart) {
-            $headers = $this->headerSelector->selectHeadersForMultipart(
-                ['application/json', '*/*']
-            );
-        } else {
-            $headers = $this->headerSelector->selectHeaders(
-                ['application/json', '*/*'],
-                ['application/json']
-            );
-        }
+        $headers = $this->headerSelector->selectHeaders(
+            ['application/json', '*/*', ],
+            $contentType,
+            $multipart
+        );
 
         // for model (json/xml)
         if (isset($simple_public_object_input)) {
-            if ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode(ObjectSerializer::sanitizeForSerialization($simple_public_object_input));
+            if (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the body
+                $httpBody = \GuzzleHttp\Utils::jsonEncode(ObjectSerializer::sanitizeForSerialization($simple_public_object_input));
             } else {
                 $httpBody = $simple_public_object_input;
             }
@@ -1711,9 +1902,9 @@ public function updateRequest($task_id, $simple_public_object_input, $id_propert
                 // for HTTP post (form)
                 $httpBody = new MultipartStream($multipartContents);
 
-            } elseif ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode($formParams);
-
+            } elseif (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the form parameters
+                $httpBody = \GuzzleHttp\Utils::jsonEncode($formParams);
             } else {
                 // for HTTP post (form)
                 $httpBody = ObjectSerializer::buildQuery($formParams);
@@ -1736,10 +1927,11 @@ public function updateRequest($task_id, $simple_public_object_input, $id_propert
             $headers
         );
 
+        $operationHost = $this->config->getHost();
         $query = ObjectSerializer::buildQuery($queryParams);
         return new Request(
             'PATCH',
-            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
+            $operationHost . $resourcePath . ($query ? "?{$query}" : ''),
             $headers,
             $httpBody
         );
diff --git a/codegen/Crm/Objects/Tasks/Api/BatchApi.php b/codegen/Crm/Objects/Tasks/Api/BatchApi.php
index 99cfe1b0..d95f05a0 100644
--- a/codegen/Crm/Objects/Tasks/Api/BatchApi.php
+++ b/codegen/Crm/Objects/Tasks/Api/BatchApi.php
@@ -16,7 +16,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -69,6 +69,22 @@ class BatchApi
      */
     protected $hostIndex;
 
+    /** @var string[] $contentTypes **/
+    public const contentTypes = [
+        'archive' => [
+            'application/json',
+        ],
+        'create' => [
+            'application/json',
+        ],
+        'read' => [
+            'application/json',
+        ],
+        'update' => [
+            'application/json',
+        ],
+    ];
+
     /**
      * @param ClientInterface $client
      * @param Configuration   $config
@@ -121,14 +137,15 @@ public function getConfig()
      * Archive a batch of tasks by ID
      *
      * @param  \HubSpot\Client\Crm\Objects\Tasks\Model\BatchInputSimplePublicObjectId $batch_input_simple_public_object_id batch_input_simple_public_object_id (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['archive'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Tasks\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Tasks\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return void
      */
-    public function archive($batch_input_simple_public_object_id)
+    public function archive($batch_input_simple_public_object_id, string $contentType = self::contentTypes['archive'][0])
     {
-        $this->archiveWithHttpInfo($batch_input_simple_public_object_id);
+        $this->archiveWithHttpInfo($batch_input_simple_public_object_id, $contentType);
     }
 
     /**
@@ -137,14 +154,15 @@ public function archive($batch_input_simple_public_object_id)
      * Archive a batch of tasks by ID
      *
      * @param  \HubSpot\Client\Crm\Objects\Tasks\Model\BatchInputSimplePublicObjectId $batch_input_simple_public_object_id (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['archive'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Tasks\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Tasks\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return array of null, HTTP status code, HTTP response headers (array of strings)
      */
-    public function archiveWithHttpInfo($batch_input_simple_public_object_id)
+    public function archiveWithHttpInfo($batch_input_simple_public_object_id, string $contentType = self::contentTypes['archive'][0])
     {
-        $request = $this->archiveRequest($batch_input_simple_public_object_id);
+        $request = $this->archiveRequest($batch_input_simple_public_object_id, $contentType);
 
         try {
             $options = $this->createHttpClientOption();
@@ -204,13 +222,14 @@ public function archiveWithHttpInfo($batch_input_simple_public_object_id)
      * Archive a batch of tasks by ID
      *
      * @param  \HubSpot\Client\Crm\Objects\Tasks\Model\BatchInputSimplePublicObjectId $batch_input_simple_public_object_id (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['archive'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function archiveAsync($batch_input_simple_public_object_id)
+    public function archiveAsync($batch_input_simple_public_object_id, string $contentType = self::contentTypes['archive'][0])
     {
-        return $this->archiveAsyncWithHttpInfo($batch_input_simple_public_object_id)
+        return $this->archiveAsyncWithHttpInfo($batch_input_simple_public_object_id, $contentType)
             ->then(
                 function ($response) {
                     return $response[0];
@@ -224,14 +243,15 @@ function ($response) {
      * Archive a batch of tasks by ID
      *
      * @param  \HubSpot\Client\Crm\Objects\Tasks\Model\BatchInputSimplePublicObjectId $batch_input_simple_public_object_id (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['archive'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function archiveAsyncWithHttpInfo($batch_input_simple_public_object_id)
+    public function archiveAsyncWithHttpInfo($batch_input_simple_public_object_id, string $contentType = self::contentTypes['archive'][0])
     {
         $returnType = '';
-        $request = $this->archiveRequest($batch_input_simple_public_object_id);
+        $request = $this->archiveRequest($batch_input_simple_public_object_id, $contentType);
 
         return $this->client
             ->sendAsync($request, $this->createHttpClientOption())
@@ -260,12 +280,14 @@ function ($exception) {
      * Create request for operation 'archive'
      *
      * @param  \HubSpot\Client\Crm\Objects\Tasks\Model\BatchInputSimplePublicObjectId $batch_input_simple_public_object_id (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['archive'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Psr7\Request
      */
-    public function archiveRequest($batch_input_simple_public_object_id)
+    public function archiveRequest($batch_input_simple_public_object_id, string $contentType = self::contentTypes['archive'][0])
     {
+
         // verify the required parameter 'batch_input_simple_public_object_id' is set
         if ($batch_input_simple_public_object_id === null || (is_array($batch_input_simple_public_object_id) && count($batch_input_simple_public_object_id) === 0)) {
             throw new \InvalidArgumentException(
@@ -273,6 +295,7 @@ public function archiveRequest($batch_input_simple_public_object_id)
             );
         }
 
+
         $resourcePath = '/crm/v3/objects/tasks/batch/archive';
         $formParams = [];
         $queryParams = [];
@@ -284,21 +307,17 @@ public function archiveRequest($batch_input_simple_public_object_id)
 
 
 
-        if ($multipart) {
-            $headers = $this->headerSelector->selectHeadersForMultipart(
-                ['*/*']
-            );
-        } else {
-            $headers = $this->headerSelector->selectHeaders(
-                ['*/*'],
-                ['application/json']
-            );
-        }
+        $headers = $this->headerSelector->selectHeaders(
+            ['*/*', ],
+            $contentType,
+            $multipart
+        );
 
         // for model (json/xml)
         if (isset($batch_input_simple_public_object_id)) {
-            if ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode(ObjectSerializer::sanitizeForSerialization($batch_input_simple_public_object_id));
+            if (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the body
+                $httpBody = \GuzzleHttp\Utils::jsonEncode(ObjectSerializer::sanitizeForSerialization($batch_input_simple_public_object_id));
             } else {
                 $httpBody = $batch_input_simple_public_object_id;
             }
@@ -317,9 +336,9 @@ public function archiveRequest($batch_input_simple_public_object_id)
                 // for HTTP post (form)
                 $httpBody = new MultipartStream($multipartContents);
 
-            } elseif ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode($formParams);
-
+            } elseif (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the form parameters
+                $httpBody = \GuzzleHttp\Utils::jsonEncode($formParams);
             } else {
                 // for HTTP post (form)
                 $httpBody = ObjectSerializer::buildQuery($formParams);
@@ -342,10 +361,11 @@ public function archiveRequest($batch_input_simple_public_object_id)
             $headers
         );
 
+        $operationHost = $this->config->getHost();
         $query = ObjectSerializer::buildQuery($queryParams);
         return new Request(
             'POST',
-            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
+            $operationHost . $resourcePath . ($query ? "?{$query}" : ''),
             $headers,
             $httpBody
         );
@@ -357,14 +377,15 @@ public function archiveRequest($batch_input_simple_public_object_id)
      * Create a batch of tasks
      *
      * @param  \HubSpot\Client\Crm\Objects\Tasks\Model\BatchInputSimplePublicObjectInputForCreate $batch_input_simple_public_object_input_for_create batch_input_simple_public_object_input_for_create (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['create'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Tasks\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Tasks\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return \HubSpot\Client\Crm\Objects\Tasks\Model\BatchResponseSimplePublicObject|\HubSpot\Client\Crm\Objects\Tasks\Model\BatchResponseSimplePublicObjectWithErrors|\HubSpot\Client\Crm\Objects\Tasks\Model\Error
      */
-    public function create($batch_input_simple_public_object_input_for_create)
+    public function create($batch_input_simple_public_object_input_for_create, string $contentType = self::contentTypes['create'][0])
     {
-        list($response) = $this->createWithHttpInfo($batch_input_simple_public_object_input_for_create);
+        list($response) = $this->createWithHttpInfo($batch_input_simple_public_object_input_for_create, $contentType);
         return $response;
     }
 
@@ -374,14 +395,15 @@ public function create($batch_input_simple_public_object_input_for_create)
      * Create a batch of tasks
      *
      * @param  \HubSpot\Client\Crm\Objects\Tasks\Model\BatchInputSimplePublicObjectInputForCreate $batch_input_simple_public_object_input_for_create (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['create'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Tasks\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Tasks\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return array of \HubSpot\Client\Crm\Objects\Tasks\Model\BatchResponseSimplePublicObject|\HubSpot\Client\Crm\Objects\Tasks\Model\BatchResponseSimplePublicObjectWithErrors|\HubSpot\Client\Crm\Objects\Tasks\Model\Error, HTTP status code, HTTP response headers (array of strings)
      */
-    public function createWithHttpInfo($batch_input_simple_public_object_input_for_create)
+    public function createWithHttpInfo($batch_input_simple_public_object_input_for_create, string $contentType = self::contentTypes['create'][0])
     {
-        $request = $this->createRequest($batch_input_simple_public_object_input_for_create);
+        $request = $this->createRequest($batch_input_simple_public_object_input_for_create, $contentType);
 
         try {
             $options = $this->createHttpClientOption();
@@ -425,7 +447,19 @@ public function createWithHttpInfo($batch_input_simple_public_object_input_for_c
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Tasks\Model\BatchResponseSimplePublicObject' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -440,7 +474,19 @@ public function createWithHttpInfo($batch_input_simple_public_object_input_for_c
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Tasks\Model\BatchResponseSimplePublicObjectWithErrors' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -455,7 +501,19 @@ public function createWithHttpInfo($batch_input_simple_public_object_input_for_c
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Tasks\Model\Error' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -472,7 +530,19 @@ public function createWithHttpInfo($batch_input_simple_public_object_input_for_c
             } else {
                 $content = (string) $response->getBody();
                 if ($returnType !== 'string') {
-                    $content = json_decode($content);
+                    try {
+                        $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                    } catch (\JsonException $exception) {
+                        throw new ApiException(
+                            sprintf(
+                                'Error JSON decoding server response (%s)',
+                                $request->getUri()
+                            ),
+                            $statusCode,
+                            $response->getHeaders(),
+                            $content
+                        );
+                    }
                 }
             }
 
@@ -519,13 +589,14 @@ public function createWithHttpInfo($batch_input_simple_public_object_input_for_c
      * Create a batch of tasks
      *
      * @param  \HubSpot\Client\Crm\Objects\Tasks\Model\BatchInputSimplePublicObjectInputForCreate $batch_input_simple_public_object_input_for_create (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['create'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function createAsync($batch_input_simple_public_object_input_for_create)
+    public function createAsync($batch_input_simple_public_object_input_for_create, string $contentType = self::contentTypes['create'][0])
     {
-        return $this->createAsyncWithHttpInfo($batch_input_simple_public_object_input_for_create)
+        return $this->createAsyncWithHttpInfo($batch_input_simple_public_object_input_for_create, $contentType)
             ->then(
                 function ($response) {
                     return $response[0];
@@ -539,14 +610,15 @@ function ($response) {
      * Create a batch of tasks
      *
      * @param  \HubSpot\Client\Crm\Objects\Tasks\Model\BatchInputSimplePublicObjectInputForCreate $batch_input_simple_public_object_input_for_create (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['create'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function createAsyncWithHttpInfo($batch_input_simple_public_object_input_for_create)
+    public function createAsyncWithHttpInfo($batch_input_simple_public_object_input_for_create, string $contentType = self::contentTypes['create'][0])
     {
         $returnType = '\HubSpot\Client\Crm\Objects\Tasks\Model\BatchResponseSimplePublicObject';
-        $request = $this->createRequest($batch_input_simple_public_object_input_for_create);
+        $request = $this->createRequest($batch_input_simple_public_object_input_for_create, $contentType);
 
         return $this->client
             ->sendAsync($request, $this->createHttpClientOption())
@@ -588,12 +660,14 @@ function ($exception) {
      * Create request for operation 'create'
      *
      * @param  \HubSpot\Client\Crm\Objects\Tasks\Model\BatchInputSimplePublicObjectInputForCreate $batch_input_simple_public_object_input_for_create (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['create'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Psr7\Request
      */
-    public function createRequest($batch_input_simple_public_object_input_for_create)
+    public function createRequest($batch_input_simple_public_object_input_for_create, string $contentType = self::contentTypes['create'][0])
     {
+
         // verify the required parameter 'batch_input_simple_public_object_input_for_create' is set
         if ($batch_input_simple_public_object_input_for_create === null || (is_array($batch_input_simple_public_object_input_for_create) && count($batch_input_simple_public_object_input_for_create) === 0)) {
             throw new \InvalidArgumentException(
@@ -601,6 +675,7 @@ public function createRequest($batch_input_simple_public_object_input_for_create
             );
         }
 
+
         $resourcePath = '/crm/v3/objects/tasks/batch/create';
         $formParams = [];
         $queryParams = [];
@@ -612,21 +687,17 @@ public function createRequest($batch_input_simple_public_object_input_for_create
 
 
 
-        if ($multipart) {
-            $headers = $this->headerSelector->selectHeadersForMultipart(
-                ['application/json', '*/*']
-            );
-        } else {
-            $headers = $this->headerSelector->selectHeaders(
-                ['application/json', '*/*'],
-                ['application/json']
-            );
-        }
+        $headers = $this->headerSelector->selectHeaders(
+            ['application/json', '*/*', ],
+            $contentType,
+            $multipart
+        );
 
         // for model (json/xml)
         if (isset($batch_input_simple_public_object_input_for_create)) {
-            if ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode(ObjectSerializer::sanitizeForSerialization($batch_input_simple_public_object_input_for_create));
+            if (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the body
+                $httpBody = \GuzzleHttp\Utils::jsonEncode(ObjectSerializer::sanitizeForSerialization($batch_input_simple_public_object_input_for_create));
             } else {
                 $httpBody = $batch_input_simple_public_object_input_for_create;
             }
@@ -645,9 +716,9 @@ public function createRequest($batch_input_simple_public_object_input_for_create
                 // for HTTP post (form)
                 $httpBody = new MultipartStream($multipartContents);
 
-            } elseif ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode($formParams);
-
+            } elseif (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the form parameters
+                $httpBody = \GuzzleHttp\Utils::jsonEncode($formParams);
             } else {
                 // for HTTP post (form)
                 $httpBody = ObjectSerializer::buildQuery($formParams);
@@ -670,10 +741,11 @@ public function createRequest($batch_input_simple_public_object_input_for_create
             $headers
         );
 
+        $operationHost = $this->config->getHost();
         $query = ObjectSerializer::buildQuery($queryParams);
         return new Request(
             'POST',
-            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
+            $operationHost . $resourcePath . ($query ? "?{$query}" : ''),
             $headers,
             $httpBody
         );
@@ -686,14 +758,15 @@ public function createRequest($batch_input_simple_public_object_input_for_create
      *
      * @param  \HubSpot\Client\Crm\Objects\Tasks\Model\BatchReadInputSimplePublicObjectId $batch_read_input_simple_public_object_id batch_read_input_simple_public_object_id (required)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['read'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Tasks\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Tasks\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return \HubSpot\Client\Crm\Objects\Tasks\Model\BatchResponseSimplePublicObject|\HubSpot\Client\Crm\Objects\Tasks\Model\BatchResponseSimplePublicObjectWithErrors|\HubSpot\Client\Crm\Objects\Tasks\Model\Error
      */
-    public function read($batch_read_input_simple_public_object_id, $archived = false)
+    public function read($batch_read_input_simple_public_object_id, $archived = false, string $contentType = self::contentTypes['read'][0])
     {
-        list($response) = $this->readWithHttpInfo($batch_read_input_simple_public_object_id, $archived);
+        list($response) = $this->readWithHttpInfo($batch_read_input_simple_public_object_id, $archived, $contentType);
         return $response;
     }
 
@@ -704,14 +777,15 @@ public function read($batch_read_input_simple_public_object_id, $archived = fals
      *
      * @param  \HubSpot\Client\Crm\Objects\Tasks\Model\BatchReadInputSimplePublicObjectId $batch_read_input_simple_public_object_id (required)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['read'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Tasks\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Tasks\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return array of \HubSpot\Client\Crm\Objects\Tasks\Model\BatchResponseSimplePublicObject|\HubSpot\Client\Crm\Objects\Tasks\Model\BatchResponseSimplePublicObjectWithErrors|\HubSpot\Client\Crm\Objects\Tasks\Model\Error, HTTP status code, HTTP response headers (array of strings)
      */
-    public function readWithHttpInfo($batch_read_input_simple_public_object_id, $archived = false)
+    public function readWithHttpInfo($batch_read_input_simple_public_object_id, $archived = false, string $contentType = self::contentTypes['read'][0])
     {
-        $request = $this->readRequest($batch_read_input_simple_public_object_id, $archived);
+        $request = $this->readRequest($batch_read_input_simple_public_object_id, $archived, $contentType);
 
         try {
             $options = $this->createHttpClientOption();
@@ -755,7 +829,19 @@ public function readWithHttpInfo($batch_read_input_simple_public_object_id, $arc
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Tasks\Model\BatchResponseSimplePublicObject' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -770,7 +856,19 @@ public function readWithHttpInfo($batch_read_input_simple_public_object_id, $arc
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Tasks\Model\BatchResponseSimplePublicObjectWithErrors' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -785,7 +883,19 @@ public function readWithHttpInfo($batch_read_input_simple_public_object_id, $arc
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Tasks\Model\Error' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -802,7 +912,19 @@ public function readWithHttpInfo($batch_read_input_simple_public_object_id, $arc
             } else {
                 $content = (string) $response->getBody();
                 if ($returnType !== 'string') {
-                    $content = json_decode($content);
+                    try {
+                        $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                    } catch (\JsonException $exception) {
+                        throw new ApiException(
+                            sprintf(
+                                'Error JSON decoding server response (%s)',
+                                $request->getUri()
+                            ),
+                            $statusCode,
+                            $response->getHeaders(),
+                            $content
+                        );
+                    }
                 }
             }
 
@@ -850,13 +972,14 @@ public function readWithHttpInfo($batch_read_input_simple_public_object_id, $arc
      *
      * @param  \HubSpot\Client\Crm\Objects\Tasks\Model\BatchReadInputSimplePublicObjectId $batch_read_input_simple_public_object_id (required)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['read'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function readAsync($batch_read_input_simple_public_object_id, $archived = false)
+    public function readAsync($batch_read_input_simple_public_object_id, $archived = false, string $contentType = self::contentTypes['read'][0])
     {
-        return $this->readAsyncWithHttpInfo($batch_read_input_simple_public_object_id, $archived)
+        return $this->readAsyncWithHttpInfo($batch_read_input_simple_public_object_id, $archived, $contentType)
             ->then(
                 function ($response) {
                     return $response[0];
@@ -871,14 +994,15 @@ function ($response) {
      *
      * @param  \HubSpot\Client\Crm\Objects\Tasks\Model\BatchReadInputSimplePublicObjectId $batch_read_input_simple_public_object_id (required)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['read'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function readAsyncWithHttpInfo($batch_read_input_simple_public_object_id, $archived = false)
+    public function readAsyncWithHttpInfo($batch_read_input_simple_public_object_id, $archived = false, string $contentType = self::contentTypes['read'][0])
     {
         $returnType = '\HubSpot\Client\Crm\Objects\Tasks\Model\BatchResponseSimplePublicObject';
-        $request = $this->readRequest($batch_read_input_simple_public_object_id, $archived);
+        $request = $this->readRequest($batch_read_input_simple_public_object_id, $archived, $contentType);
 
         return $this->client
             ->sendAsync($request, $this->createHttpClientOption())
@@ -921,12 +1045,14 @@ function ($exception) {
      *
      * @param  \HubSpot\Client\Crm\Objects\Tasks\Model\BatchReadInputSimplePublicObjectId $batch_read_input_simple_public_object_id (required)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['read'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Psr7\Request
      */
-    public function readRequest($batch_read_input_simple_public_object_id, $archived = false)
+    public function readRequest($batch_read_input_simple_public_object_id, $archived = false, string $contentType = self::contentTypes['read'][0])
     {
+
         // verify the required parameter 'batch_read_input_simple_public_object_id' is set
         if ($batch_read_input_simple_public_object_id === null || (is_array($batch_read_input_simple_public_object_id) && count($batch_read_input_simple_public_object_id) === 0)) {
             throw new \InvalidArgumentException(
@@ -934,6 +1060,8 @@ public function readRequest($batch_read_input_simple_public_object_id, $archived
             );
         }
 
+
+
         $resourcePath = '/crm/v3/objects/tasks/batch/read';
         $formParams = [];
         $queryParams = [];
@@ -954,21 +1082,17 @@ public function readRequest($batch_read_input_simple_public_object_id, $archived
 
 
 
-        if ($multipart) {
-            $headers = $this->headerSelector->selectHeadersForMultipart(
-                ['application/json', '*/*']
-            );
-        } else {
-            $headers = $this->headerSelector->selectHeaders(
-                ['application/json', '*/*'],
-                ['application/json']
-            );
-        }
+        $headers = $this->headerSelector->selectHeaders(
+            ['application/json', '*/*', ],
+            $contentType,
+            $multipart
+        );
 
         // for model (json/xml)
         if (isset($batch_read_input_simple_public_object_id)) {
-            if ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode(ObjectSerializer::sanitizeForSerialization($batch_read_input_simple_public_object_id));
+            if (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the body
+                $httpBody = \GuzzleHttp\Utils::jsonEncode(ObjectSerializer::sanitizeForSerialization($batch_read_input_simple_public_object_id));
             } else {
                 $httpBody = $batch_read_input_simple_public_object_id;
             }
@@ -987,9 +1111,9 @@ public function readRequest($batch_read_input_simple_public_object_id, $archived
                 // for HTTP post (form)
                 $httpBody = new MultipartStream($multipartContents);
 
-            } elseif ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode($formParams);
-
+            } elseif (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the form parameters
+                $httpBody = \GuzzleHttp\Utils::jsonEncode($formParams);
             } else {
                 // for HTTP post (form)
                 $httpBody = ObjectSerializer::buildQuery($formParams);
@@ -1012,10 +1136,11 @@ public function readRequest($batch_read_input_simple_public_object_id, $archived
             $headers
         );
 
+        $operationHost = $this->config->getHost();
         $query = ObjectSerializer::buildQuery($queryParams);
         return new Request(
             'POST',
-            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
+            $operationHost . $resourcePath . ($query ? "?{$query}" : ''),
             $headers,
             $httpBody
         );
@@ -1027,14 +1152,15 @@ public function readRequest($batch_read_input_simple_public_object_id, $archived
      * Update a batch of tasks
      *
      * @param  \HubSpot\Client\Crm\Objects\Tasks\Model\BatchInputSimplePublicObjectBatchInput $batch_input_simple_public_object_batch_input batch_input_simple_public_object_batch_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['update'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Tasks\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Tasks\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return \HubSpot\Client\Crm\Objects\Tasks\Model\BatchResponseSimplePublicObject|\HubSpot\Client\Crm\Objects\Tasks\Model\BatchResponseSimplePublicObjectWithErrors|\HubSpot\Client\Crm\Objects\Tasks\Model\Error
      */
-    public function update($batch_input_simple_public_object_batch_input)
+    public function update($batch_input_simple_public_object_batch_input, string $contentType = self::contentTypes['update'][0])
     {
-        list($response) = $this->updateWithHttpInfo($batch_input_simple_public_object_batch_input);
+        list($response) = $this->updateWithHttpInfo($batch_input_simple_public_object_batch_input, $contentType);
         return $response;
     }
 
@@ -1044,14 +1170,15 @@ public function update($batch_input_simple_public_object_batch_input)
      * Update a batch of tasks
      *
      * @param  \HubSpot\Client\Crm\Objects\Tasks\Model\BatchInputSimplePublicObjectBatchInput $batch_input_simple_public_object_batch_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['update'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Tasks\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Tasks\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return array of \HubSpot\Client\Crm\Objects\Tasks\Model\BatchResponseSimplePublicObject|\HubSpot\Client\Crm\Objects\Tasks\Model\BatchResponseSimplePublicObjectWithErrors|\HubSpot\Client\Crm\Objects\Tasks\Model\Error, HTTP status code, HTTP response headers (array of strings)
      */
-    public function updateWithHttpInfo($batch_input_simple_public_object_batch_input)
+    public function updateWithHttpInfo($batch_input_simple_public_object_batch_input, string $contentType = self::contentTypes['update'][0])
     {
-        $request = $this->updateRequest($batch_input_simple_public_object_batch_input);
+        $request = $this->updateRequest($batch_input_simple_public_object_batch_input, $contentType);
 
         try {
             $options = $this->createHttpClientOption();
@@ -1095,7 +1222,19 @@ public function updateWithHttpInfo($batch_input_simple_public_object_batch_input
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Tasks\Model\BatchResponseSimplePublicObject' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -1110,7 +1249,19 @@ public function updateWithHttpInfo($batch_input_simple_public_object_batch_input
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Tasks\Model\BatchResponseSimplePublicObjectWithErrors' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -1125,7 +1276,19 @@ public function updateWithHttpInfo($batch_input_simple_public_object_batch_input
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Tasks\Model\Error' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -1142,7 +1305,19 @@ public function updateWithHttpInfo($batch_input_simple_public_object_batch_input
             } else {
                 $content = (string) $response->getBody();
                 if ($returnType !== 'string') {
-                    $content = json_decode($content);
+                    try {
+                        $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                    } catch (\JsonException $exception) {
+                        throw new ApiException(
+                            sprintf(
+                                'Error JSON decoding server response (%s)',
+                                $request->getUri()
+                            ),
+                            $statusCode,
+                            $response->getHeaders(),
+                            $content
+                        );
+                    }
                 }
             }
 
@@ -1189,13 +1364,14 @@ public function updateWithHttpInfo($batch_input_simple_public_object_batch_input
      * Update a batch of tasks
      *
      * @param  \HubSpot\Client\Crm\Objects\Tasks\Model\BatchInputSimplePublicObjectBatchInput $batch_input_simple_public_object_batch_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['update'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function updateAsync($batch_input_simple_public_object_batch_input)
+    public function updateAsync($batch_input_simple_public_object_batch_input, string $contentType = self::contentTypes['update'][0])
     {
-        return $this->updateAsyncWithHttpInfo($batch_input_simple_public_object_batch_input)
+        return $this->updateAsyncWithHttpInfo($batch_input_simple_public_object_batch_input, $contentType)
             ->then(
                 function ($response) {
                     return $response[0];
@@ -1209,14 +1385,15 @@ function ($response) {
      * Update a batch of tasks
      *
      * @param  \HubSpot\Client\Crm\Objects\Tasks\Model\BatchInputSimplePublicObjectBatchInput $batch_input_simple_public_object_batch_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['update'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function updateAsyncWithHttpInfo($batch_input_simple_public_object_batch_input)
+    public function updateAsyncWithHttpInfo($batch_input_simple_public_object_batch_input, string $contentType = self::contentTypes['update'][0])
     {
         $returnType = '\HubSpot\Client\Crm\Objects\Tasks\Model\BatchResponseSimplePublicObject';
-        $request = $this->updateRequest($batch_input_simple_public_object_batch_input);
+        $request = $this->updateRequest($batch_input_simple_public_object_batch_input, $contentType);
 
         return $this->client
             ->sendAsync($request, $this->createHttpClientOption())
@@ -1258,12 +1435,14 @@ function ($exception) {
      * Create request for operation 'update'
      *
      * @param  \HubSpot\Client\Crm\Objects\Tasks\Model\BatchInputSimplePublicObjectBatchInput $batch_input_simple_public_object_batch_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['update'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Psr7\Request
      */
-    public function updateRequest($batch_input_simple_public_object_batch_input)
+    public function updateRequest($batch_input_simple_public_object_batch_input, string $contentType = self::contentTypes['update'][0])
     {
+
         // verify the required parameter 'batch_input_simple_public_object_batch_input' is set
         if ($batch_input_simple_public_object_batch_input === null || (is_array($batch_input_simple_public_object_batch_input) && count($batch_input_simple_public_object_batch_input) === 0)) {
             throw new \InvalidArgumentException(
@@ -1271,6 +1450,7 @@ public function updateRequest($batch_input_simple_public_object_batch_input)
             );
         }
 
+
         $resourcePath = '/crm/v3/objects/tasks/batch/update';
         $formParams = [];
         $queryParams = [];
@@ -1282,21 +1462,17 @@ public function updateRequest($batch_input_simple_public_object_batch_input)
 
 
 
-        if ($multipart) {
-            $headers = $this->headerSelector->selectHeadersForMultipart(
-                ['application/json', '*/*']
-            );
-        } else {
-            $headers = $this->headerSelector->selectHeaders(
-                ['application/json', '*/*'],
-                ['application/json']
-            );
-        }
+        $headers = $this->headerSelector->selectHeaders(
+            ['application/json', '*/*', ],
+            $contentType,
+            $multipart
+        );
 
         // for model (json/xml)
         if (isset($batch_input_simple_public_object_batch_input)) {
-            if ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode(ObjectSerializer::sanitizeForSerialization($batch_input_simple_public_object_batch_input));
+            if (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the body
+                $httpBody = \GuzzleHttp\Utils::jsonEncode(ObjectSerializer::sanitizeForSerialization($batch_input_simple_public_object_batch_input));
             } else {
                 $httpBody = $batch_input_simple_public_object_batch_input;
             }
@@ -1315,9 +1491,9 @@ public function updateRequest($batch_input_simple_public_object_batch_input)
                 // for HTTP post (form)
                 $httpBody = new MultipartStream($multipartContents);
 
-            } elseif ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode($formParams);
-
+            } elseif (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the form parameters
+                $httpBody = \GuzzleHttp\Utils::jsonEncode($formParams);
             } else {
                 // for HTTP post (form)
                 $httpBody = ObjectSerializer::buildQuery($formParams);
@@ -1340,10 +1516,11 @@ public function updateRequest($batch_input_simple_public_object_batch_input)
             $headers
         );
 
+        $operationHost = $this->config->getHost();
         $query = ObjectSerializer::buildQuery($queryParams);
         return new Request(
             'POST',
-            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
+            $operationHost . $resourcePath . ($query ? "?{$query}" : ''),
             $headers,
             $httpBody
         );
diff --git a/codegen/Crm/Objects/Tasks/Api/GDPRApi.php b/codegen/Crm/Objects/Tasks/Api/GDPRApi.php
index 40140f90..d53c509c 100644
--- a/codegen/Crm/Objects/Tasks/Api/GDPRApi.php
+++ b/codegen/Crm/Objects/Tasks/Api/GDPRApi.php
@@ -16,7 +16,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -69,6 +69,13 @@ class GDPRApi
      */
     protected $hostIndex;
 
+    /** @var string[] $contentTypes **/
+    public const contentTypes = [
+        'purge' => [
+            'application/json',
+        ],
+    ];
+
     /**
      * @param ClientInterface $client
      * @param Configuration   $config
@@ -121,14 +128,15 @@ public function getConfig()
      * GDPR DELETE
      *
      * @param  \HubSpot\Client\Crm\Objects\Tasks\Model\PublicGdprDeleteInput $public_gdpr_delete_input public_gdpr_delete_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['purge'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Tasks\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Tasks\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return void
      */
-    public function purge($public_gdpr_delete_input)
+    public function purge($public_gdpr_delete_input, string $contentType = self::contentTypes['purge'][0])
     {
-        $this->purgeWithHttpInfo($public_gdpr_delete_input);
+        $this->purgeWithHttpInfo($public_gdpr_delete_input, $contentType);
     }
 
     /**
@@ -137,14 +145,15 @@ public function purge($public_gdpr_delete_input)
      * GDPR DELETE
      *
      * @param  \HubSpot\Client\Crm\Objects\Tasks\Model\PublicGdprDeleteInput $public_gdpr_delete_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['purge'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Tasks\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Tasks\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return array of null, HTTP status code, HTTP response headers (array of strings)
      */
-    public function purgeWithHttpInfo($public_gdpr_delete_input)
+    public function purgeWithHttpInfo($public_gdpr_delete_input, string $contentType = self::contentTypes['purge'][0])
     {
-        $request = $this->purgeRequest($public_gdpr_delete_input);
+        $request = $this->purgeRequest($public_gdpr_delete_input, $contentType);
 
         try {
             $options = $this->createHttpClientOption();
@@ -204,13 +213,14 @@ public function purgeWithHttpInfo($public_gdpr_delete_input)
      * GDPR DELETE
      *
      * @param  \HubSpot\Client\Crm\Objects\Tasks\Model\PublicGdprDeleteInput $public_gdpr_delete_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['purge'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function purgeAsync($public_gdpr_delete_input)
+    public function purgeAsync($public_gdpr_delete_input, string $contentType = self::contentTypes['purge'][0])
     {
-        return $this->purgeAsyncWithHttpInfo($public_gdpr_delete_input)
+        return $this->purgeAsyncWithHttpInfo($public_gdpr_delete_input, $contentType)
             ->then(
                 function ($response) {
                     return $response[0];
@@ -224,14 +234,15 @@ function ($response) {
      * GDPR DELETE
      *
      * @param  \HubSpot\Client\Crm\Objects\Tasks\Model\PublicGdprDeleteInput $public_gdpr_delete_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['purge'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function purgeAsyncWithHttpInfo($public_gdpr_delete_input)
+    public function purgeAsyncWithHttpInfo($public_gdpr_delete_input, string $contentType = self::contentTypes['purge'][0])
     {
         $returnType = '';
-        $request = $this->purgeRequest($public_gdpr_delete_input);
+        $request = $this->purgeRequest($public_gdpr_delete_input, $contentType);
 
         return $this->client
             ->sendAsync($request, $this->createHttpClientOption())
@@ -260,12 +271,14 @@ function ($exception) {
      * Create request for operation 'purge'
      *
      * @param  \HubSpot\Client\Crm\Objects\Tasks\Model\PublicGdprDeleteInput $public_gdpr_delete_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['purge'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Psr7\Request
      */
-    public function purgeRequest($public_gdpr_delete_input)
+    public function purgeRequest($public_gdpr_delete_input, string $contentType = self::contentTypes['purge'][0])
     {
+
         // verify the required parameter 'public_gdpr_delete_input' is set
         if ($public_gdpr_delete_input === null || (is_array($public_gdpr_delete_input) && count($public_gdpr_delete_input) === 0)) {
             throw new \InvalidArgumentException(
@@ -273,6 +286,7 @@ public function purgeRequest($public_gdpr_delete_input)
             );
         }
 
+
         $resourcePath = '/crm/v3/objects/tasks/gdpr-delete';
         $formParams = [];
         $queryParams = [];
@@ -284,21 +298,17 @@ public function purgeRequest($public_gdpr_delete_input)
 
 
 
-        if ($multipart) {
-            $headers = $this->headerSelector->selectHeadersForMultipart(
-                ['*/*']
-            );
-        } else {
-            $headers = $this->headerSelector->selectHeaders(
-                ['*/*'],
-                ['application/json']
-            );
-        }
+        $headers = $this->headerSelector->selectHeaders(
+            ['*/*', ],
+            $contentType,
+            $multipart
+        );
 
         // for model (json/xml)
         if (isset($public_gdpr_delete_input)) {
-            if ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode(ObjectSerializer::sanitizeForSerialization($public_gdpr_delete_input));
+            if (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the body
+                $httpBody = \GuzzleHttp\Utils::jsonEncode(ObjectSerializer::sanitizeForSerialization($public_gdpr_delete_input));
             } else {
                 $httpBody = $public_gdpr_delete_input;
             }
@@ -317,9 +327,9 @@ public function purgeRequest($public_gdpr_delete_input)
                 // for HTTP post (form)
                 $httpBody = new MultipartStream($multipartContents);
 
-            } elseif ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode($formParams);
-
+            } elseif (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the form parameters
+                $httpBody = \GuzzleHttp\Utils::jsonEncode($formParams);
             } else {
                 // for HTTP post (form)
                 $httpBody = ObjectSerializer::buildQuery($formParams);
@@ -342,10 +352,11 @@ public function purgeRequest($public_gdpr_delete_input)
             $headers
         );
 
+        $operationHost = $this->config->getHost();
         $query = ObjectSerializer::buildQuery($queryParams);
         return new Request(
             'POST',
-            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
+            $operationHost . $resourcePath . ($query ? "?{$query}" : ''),
             $headers,
             $httpBody
         );
diff --git a/codegen/Crm/Objects/Tasks/Api/PublicObjectApi.php b/codegen/Crm/Objects/Tasks/Api/PublicObjectApi.php
index b74b087d..6d183ed2 100644
--- a/codegen/Crm/Objects/Tasks/Api/PublicObjectApi.php
+++ b/codegen/Crm/Objects/Tasks/Api/PublicObjectApi.php
@@ -16,7 +16,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -69,6 +69,13 @@ class PublicObjectApi
      */
     protected $hostIndex;
 
+    /** @var string[] $contentTypes **/
+    public const contentTypes = [
+        'merge' => [
+            'application/json',
+        ],
+    ];
+
     /**
      * @param ClientInterface $client
      * @param Configuration   $config
@@ -121,14 +128,15 @@ public function getConfig()
      * Merge two tasks with same type
      *
      * @param  \HubSpot\Client\Crm\Objects\Tasks\Model\PublicMergeInput $public_merge_input public_merge_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['merge'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Tasks\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Tasks\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return \HubSpot\Client\Crm\Objects\Tasks\Model\SimplePublicObject|\HubSpot\Client\Crm\Objects\Tasks\Model\Error
      */
-    public function merge($public_merge_input)
+    public function merge($public_merge_input, string $contentType = self::contentTypes['merge'][0])
     {
-        list($response) = $this->mergeWithHttpInfo($public_merge_input);
+        list($response) = $this->mergeWithHttpInfo($public_merge_input, $contentType);
         return $response;
     }
 
@@ -138,14 +146,15 @@ public function merge($public_merge_input)
      * Merge two tasks with same type
      *
      * @param  \HubSpot\Client\Crm\Objects\Tasks\Model\PublicMergeInput $public_merge_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['merge'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Tasks\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Tasks\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return array of \HubSpot\Client\Crm\Objects\Tasks\Model\SimplePublicObject|\HubSpot\Client\Crm\Objects\Tasks\Model\Error, HTTP status code, HTTP response headers (array of strings)
      */
-    public function mergeWithHttpInfo($public_merge_input)
+    public function mergeWithHttpInfo($public_merge_input, string $contentType = self::contentTypes['merge'][0])
     {
-        $request = $this->mergeRequest($public_merge_input);
+        $request = $this->mergeRequest($public_merge_input, $contentType);
 
         try {
             $options = $this->createHttpClientOption();
@@ -189,7 +198,19 @@ public function mergeWithHttpInfo($public_merge_input)
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Tasks\Model\SimplePublicObject' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -204,7 +225,19 @@ public function mergeWithHttpInfo($public_merge_input)
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Tasks\Model\Error' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -221,7 +254,19 @@ public function mergeWithHttpInfo($public_merge_input)
             } else {
                 $content = (string) $response->getBody();
                 if ($returnType !== 'string') {
-                    $content = json_decode($content);
+                    try {
+                        $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                    } catch (\JsonException $exception) {
+                        throw new ApiException(
+                            sprintf(
+                                'Error JSON decoding server response (%s)',
+                                $request->getUri()
+                            ),
+                            $statusCode,
+                            $response->getHeaders(),
+                            $content
+                        );
+                    }
                 }
             }
 
@@ -260,13 +305,14 @@ public function mergeWithHttpInfo($public_merge_input)
      * Merge two tasks with same type
      *
      * @param  \HubSpot\Client\Crm\Objects\Tasks\Model\PublicMergeInput $public_merge_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['merge'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function mergeAsync($public_merge_input)
+    public function mergeAsync($public_merge_input, string $contentType = self::contentTypes['merge'][0])
     {
-        return $this->mergeAsyncWithHttpInfo($public_merge_input)
+        return $this->mergeAsyncWithHttpInfo($public_merge_input, $contentType)
             ->then(
                 function ($response) {
                     return $response[0];
@@ -280,14 +326,15 @@ function ($response) {
      * Merge two tasks with same type
      *
      * @param  \HubSpot\Client\Crm\Objects\Tasks\Model\PublicMergeInput $public_merge_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['merge'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function mergeAsyncWithHttpInfo($public_merge_input)
+    public function mergeAsyncWithHttpInfo($public_merge_input, string $contentType = self::contentTypes['merge'][0])
     {
         $returnType = '\HubSpot\Client\Crm\Objects\Tasks\Model\SimplePublicObject';
-        $request = $this->mergeRequest($public_merge_input);
+        $request = $this->mergeRequest($public_merge_input, $contentType);
 
         return $this->client
             ->sendAsync($request, $this->createHttpClientOption())
@@ -329,12 +376,14 @@ function ($exception) {
      * Create request for operation 'merge'
      *
      * @param  \HubSpot\Client\Crm\Objects\Tasks\Model\PublicMergeInput $public_merge_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['merge'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Psr7\Request
      */
-    public function mergeRequest($public_merge_input)
+    public function mergeRequest($public_merge_input, string $contentType = self::contentTypes['merge'][0])
     {
+
         // verify the required parameter 'public_merge_input' is set
         if ($public_merge_input === null || (is_array($public_merge_input) && count($public_merge_input) === 0)) {
             throw new \InvalidArgumentException(
@@ -342,6 +391,7 @@ public function mergeRequest($public_merge_input)
             );
         }
 
+
         $resourcePath = '/crm/v3/objects/tasks/merge';
         $formParams = [];
         $queryParams = [];
@@ -353,21 +403,17 @@ public function mergeRequest($public_merge_input)
 
 
 
-        if ($multipart) {
-            $headers = $this->headerSelector->selectHeadersForMultipart(
-                ['application/json', '*/*']
-            );
-        } else {
-            $headers = $this->headerSelector->selectHeaders(
-                ['application/json', '*/*'],
-                ['application/json']
-            );
-        }
+        $headers = $this->headerSelector->selectHeaders(
+            ['application/json', '*/*', ],
+            $contentType,
+            $multipart
+        );
 
         // for model (json/xml)
         if (isset($public_merge_input)) {
-            if ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode(ObjectSerializer::sanitizeForSerialization($public_merge_input));
+            if (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the body
+                $httpBody = \GuzzleHttp\Utils::jsonEncode(ObjectSerializer::sanitizeForSerialization($public_merge_input));
             } else {
                 $httpBody = $public_merge_input;
             }
@@ -386,9 +432,9 @@ public function mergeRequest($public_merge_input)
                 // for HTTP post (form)
                 $httpBody = new MultipartStream($multipartContents);
 
-            } elseif ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode($formParams);
-
+            } elseif (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the form parameters
+                $httpBody = \GuzzleHttp\Utils::jsonEncode($formParams);
             } else {
                 // for HTTP post (form)
                 $httpBody = ObjectSerializer::buildQuery($formParams);
@@ -411,10 +457,11 @@ public function mergeRequest($public_merge_input)
             $headers
         );
 
+        $operationHost = $this->config->getHost();
         $query = ObjectSerializer::buildQuery($queryParams);
         return new Request(
             'POST',
-            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
+            $operationHost . $resourcePath . ($query ? "?{$query}" : ''),
             $headers,
             $httpBody
         );
diff --git a/codegen/Crm/Objects/Tasks/Api/SearchApi.php b/codegen/Crm/Objects/Tasks/Api/SearchApi.php
index f25bb6cc..62187ee4 100644
--- a/codegen/Crm/Objects/Tasks/Api/SearchApi.php
+++ b/codegen/Crm/Objects/Tasks/Api/SearchApi.php
@@ -16,7 +16,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -69,6 +69,13 @@ class SearchApi
      */
     protected $hostIndex;
 
+    /** @var string[] $contentTypes **/
+    public const contentTypes = [
+        'doSearch' => [
+            'application/json',
+        ],
+    ];
+
     /**
      * @param ClientInterface $client
      * @param Configuration   $config
@@ -119,14 +126,15 @@ public function getConfig()
      * Operation doSearch
      *
      * @param  \HubSpot\Client\Crm\Objects\Tasks\Model\PublicObjectSearchRequest $public_object_search_request public_object_search_request (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['doSearch'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Tasks\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Tasks\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return \HubSpot\Client\Crm\Objects\Tasks\Model\CollectionResponseWithTotalSimplePublicObjectForwardPaging|\HubSpot\Client\Crm\Objects\Tasks\Model\Error
      */
-    public function doSearch($public_object_search_request)
+    public function doSearch($public_object_search_request, string $contentType = self::contentTypes['doSearch'][0])
     {
-        list($response) = $this->doSearchWithHttpInfo($public_object_search_request);
+        list($response) = $this->doSearchWithHttpInfo($public_object_search_request, $contentType);
         return $response;
     }
 
@@ -134,14 +142,15 @@ public function doSearch($public_object_search_request)
      * Operation doSearchWithHttpInfo
      *
      * @param  \HubSpot\Client\Crm\Objects\Tasks\Model\PublicObjectSearchRequest $public_object_search_request (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['doSearch'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Tasks\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Tasks\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return array of \HubSpot\Client\Crm\Objects\Tasks\Model\CollectionResponseWithTotalSimplePublicObjectForwardPaging|\HubSpot\Client\Crm\Objects\Tasks\Model\Error, HTTP status code, HTTP response headers (array of strings)
      */
-    public function doSearchWithHttpInfo($public_object_search_request)
+    public function doSearchWithHttpInfo($public_object_search_request, string $contentType = self::contentTypes['doSearch'][0])
     {
-        $request = $this->doSearchRequest($public_object_search_request);
+        $request = $this->doSearchRequest($public_object_search_request, $contentType);
 
         try {
             $options = $this->createHttpClientOption();
@@ -185,7 +194,19 @@ public function doSearchWithHttpInfo($public_object_search_request)
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Tasks\Model\CollectionResponseWithTotalSimplePublicObjectForwardPaging' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -200,7 +221,19 @@ public function doSearchWithHttpInfo($public_object_search_request)
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Tasks\Model\Error' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -217,7 +250,19 @@ public function doSearchWithHttpInfo($public_object_search_request)
             } else {
                 $content = (string) $response->getBody();
                 if ($returnType !== 'string') {
-                    $content = json_decode($content);
+                    try {
+                        $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                    } catch (\JsonException $exception) {
+                        throw new ApiException(
+                            sprintf(
+                                'Error JSON decoding server response (%s)',
+                                $request->getUri()
+                            ),
+                            $statusCode,
+                            $response->getHeaders(),
+                            $content
+                        );
+                    }
                 }
             }
 
@@ -254,13 +299,14 @@ public function doSearchWithHttpInfo($public_object_search_request)
      * Operation doSearchAsync
      *
      * @param  \HubSpot\Client\Crm\Objects\Tasks\Model\PublicObjectSearchRequest $public_object_search_request (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['doSearch'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function doSearchAsync($public_object_search_request)
+    public function doSearchAsync($public_object_search_request, string $contentType = self::contentTypes['doSearch'][0])
     {
-        return $this->doSearchAsyncWithHttpInfo($public_object_search_request)
+        return $this->doSearchAsyncWithHttpInfo($public_object_search_request, $contentType)
             ->then(
                 function ($response) {
                     return $response[0];
@@ -272,14 +318,15 @@ function ($response) {
      * Operation doSearchAsyncWithHttpInfo
      *
      * @param  \HubSpot\Client\Crm\Objects\Tasks\Model\PublicObjectSearchRequest $public_object_search_request (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['doSearch'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function doSearchAsyncWithHttpInfo($public_object_search_request)
+    public function doSearchAsyncWithHttpInfo($public_object_search_request, string $contentType = self::contentTypes['doSearch'][0])
     {
         $returnType = '\HubSpot\Client\Crm\Objects\Tasks\Model\CollectionResponseWithTotalSimplePublicObjectForwardPaging';
-        $request = $this->doSearchRequest($public_object_search_request);
+        $request = $this->doSearchRequest($public_object_search_request, $contentType);
 
         return $this->client
             ->sendAsync($request, $this->createHttpClientOption())
@@ -321,12 +368,14 @@ function ($exception) {
      * Create request for operation 'doSearch'
      *
      * @param  \HubSpot\Client\Crm\Objects\Tasks\Model\PublicObjectSearchRequest $public_object_search_request (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['doSearch'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Psr7\Request
      */
-    public function doSearchRequest($public_object_search_request)
+    public function doSearchRequest($public_object_search_request, string $contentType = self::contentTypes['doSearch'][0])
     {
+
         // verify the required parameter 'public_object_search_request' is set
         if ($public_object_search_request === null || (is_array($public_object_search_request) && count($public_object_search_request) === 0)) {
             throw new \InvalidArgumentException(
@@ -334,6 +383,7 @@ public function doSearchRequest($public_object_search_request)
             );
         }
 
+
         $resourcePath = '/crm/v3/objects/tasks/search';
         $formParams = [];
         $queryParams = [];
@@ -345,21 +395,17 @@ public function doSearchRequest($public_object_search_request)
 
 
 
-        if ($multipart) {
-            $headers = $this->headerSelector->selectHeadersForMultipart(
-                ['application/json', '*/*']
-            );
-        } else {
-            $headers = $this->headerSelector->selectHeaders(
-                ['application/json', '*/*'],
-                ['application/json']
-            );
-        }
+        $headers = $this->headerSelector->selectHeaders(
+            ['application/json', '*/*', ],
+            $contentType,
+            $multipart
+        );
 
         // for model (json/xml)
         if (isset($public_object_search_request)) {
-            if ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode(ObjectSerializer::sanitizeForSerialization($public_object_search_request));
+            if (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the body
+                $httpBody = \GuzzleHttp\Utils::jsonEncode(ObjectSerializer::sanitizeForSerialization($public_object_search_request));
             } else {
                 $httpBody = $public_object_search_request;
             }
@@ -378,9 +424,9 @@ public function doSearchRequest($public_object_search_request)
                 // for HTTP post (form)
                 $httpBody = new MultipartStream($multipartContents);
 
-            } elseif ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode($formParams);
-
+            } elseif (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the form parameters
+                $httpBody = \GuzzleHttp\Utils::jsonEncode($formParams);
             } else {
                 // for HTTP post (form)
                 $httpBody = ObjectSerializer::buildQuery($formParams);
@@ -403,10 +449,11 @@ public function doSearchRequest($public_object_search_request)
             $headers
         );
 
+        $operationHost = $this->config->getHost();
         $query = ObjectSerializer::buildQuery($queryParams);
         return new Request(
             'POST',
-            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
+            $operationHost . $resourcePath . ($query ? "?{$query}" : ''),
             $headers,
             $httpBody
         );
diff --git a/codegen/Crm/Objects/Tasks/ApiException.php b/codegen/Crm/Objects/Tasks/ApiException.php
index ff56eeaf..3d3542cf 100644
--- a/codegen/Crm/Objects/Tasks/ApiException.php
+++ b/codegen/Crm/Objects/Tasks/ApiException.php
@@ -16,7 +16,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
diff --git a/codegen/Crm/Objects/Tasks/Configuration.php b/codegen/Crm/Objects/Tasks/Configuration.php
index dfba79d0..912c1ef7 100644
--- a/codegen/Crm/Objects/Tasks/Configuration.php
+++ b/codegen/Crm/Objects/Tasks/Configuration.php
@@ -16,7 +16,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -209,7 +209,7 @@ public function getAccessToken()
     /**
      * Sets boolean format for query string.
      *
-     * @param string $booleanFormatForQueryString Boolean format for query string
+     * @param string $booleanFormat Boolean format for query string
      *
      * @return $this
      */
@@ -479,32 +479,31 @@ public function getHostSettings()
     }
 
     /**
-     * Returns URL based on the index and variables
-     *
-     * @param int        $index     index of the host settings
-     * @param array|null $variables hash of variable and the corresponding value (optional)
-     * @return string URL based on host settings
-     */
-    public function getHostFromSettings($index, $variables = null)
+    * Returns URL based on host settings, index and variables
+    *
+    * @param array      $hostSettings array of host settings, generated from getHostSettings() or equivalent from the API clients
+    * @param int        $hostIndex    index of the host settings
+    * @param array|null $variables    hash of variable and the corresponding value (optional)
+    * @return string URL based on host settings
+    */
+    public static function getHostString(array $hostSettings, $hostIndex, array $variables = null)
     {
         if (null === $variables) {
             $variables = [];
         }
 
-        $hosts = $this->getHostSettings();
-
         // check array index out of bound
-        if ($index < 0 || $index >= sizeof($hosts)) {
-            throw new \InvalidArgumentException("Invalid index $index when selecting the host. Must be less than ".sizeof($hosts));
+        if ($hostIndex < 0 || $hostIndex >= count($hostSettings)) {
+            throw new \InvalidArgumentException("Invalid index $hostIndex when selecting the host. Must be less than ".count($hostSettings));
         }
 
-        $host = $hosts[$index];
+        $host = $hostSettings[$hostIndex];
         $url = $host["url"];
 
         // go through variable and assign a value
         foreach ($host["variables"] ?? [] as $name => $variable) {
             if (array_key_exists($name, $variables)) { // check to see if it's in the variables provided by the user
-                if (in_array($variables[$name], $variable["enum_values"], true)) { // check to see if the value is in the enum
+                if (!isset($variable['enum_values']) || in_array($variables[$name], $variable["enum_values"], true)) { // check to see if the value is in the enum
                     $url = str_replace("{".$name."}", $variables[$name], $url);
                 } else {
                     throw new \InvalidArgumentException("The variable `$name` in the host URL has invalid value ".$variables[$name].". Must be ".join(',', $variable["enum_values"]).".");
@@ -517,4 +516,16 @@ public function getHostFromSettings($index, $variables = null)
 
         return $url;
     }
+
+    /**
+     * Returns URL based on the index and variables
+     *
+     * @param int        $index     index of the host settings
+     * @param array|null $variables hash of variable and the corresponding value (optional)
+     * @return string URL based on host settings
+     */
+    public function getHostFromSettings($index, $variables = null)
+    {
+        return self::getHostString($this->getHostSettings(), $index, $variables);
+    }
 }
diff --git a/codegen/Crm/Objects/Tasks/HeaderSelector.php b/codegen/Crm/Objects/Tasks/HeaderSelector.php
index 556c2dcd..bf00a0ab 100644
--- a/codegen/Crm/Objects/Tasks/HeaderSelector.php
+++ b/codegen/Crm/Objects/Tasks/HeaderSelector.php
@@ -1,6 +1,6 @@
 <?php
 /**
- * ApiException
+ * HeaderSelector
  * PHP version 7.4
  *
  * @category Class
@@ -16,7 +16,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -27,10 +27,8 @@
 
 namespace HubSpot\Client\Crm\Objects\Tasks;
 
-use \Exception;
-
 /**
- * ApiException Class Doc Comment
+ * HeaderSelector Class Doc Comment
  *
  * @category Class
  * @package  HubSpot\Client\Crm\Objects\Tasks
@@ -41,10 +39,11 @@ class HeaderSelector
 {
     /**
      * @param string[] $accept
-     * @param string[] $contentTypes
-     * @return array
+     * @param string   $contentType
+     * @param bool     $isMultipart
+     * @return string[]
      */
-    public function selectHeaders($accept, $contentTypes)
+    public function selectHeaders(array $accept, string $contentType, bool $isMultipart): array
     {
         $headers = [];
 
@@ -53,55 +52,194 @@ public function selectHeaders($accept, $contentTypes)
             $headers['Accept'] = $accept;
         }
 
-        $headers['Content-Type'] = $this->selectContentTypeHeader($contentTypes);
-        return $headers;
-    }
+        if (!$isMultipart) {
+            if($contentType === '') {
+                $contentType = 'application/json';
+            }
 
-    /**
-     * @param string[] $accept
-     * @return array
-     */
-    public function selectHeadersForMultipart($accept)
-    {
-        $headers = $this->selectHeaders($accept, []);
+            $headers['Content-Type'] = $contentType;
+        }
 
-        unset($headers['Content-Type']);
         return $headers;
     }
 
     /**
-     * Return the header 'Accept' based on an array of Accept provided
+     * Return the header 'Accept' based on an array of Accept provided.
      *
      * @param string[] $accept Array of header
      *
      * @return null|string Accept (e.g. application/json)
      */
-    private function selectAcceptHeader($accept)
+    private function selectAcceptHeader(array $accept): ?string
     {
-        if (count($accept) === 0 || (count($accept) === 1 && $accept[0] === '')) {
+        # filter out empty entries
+        $accept = array_filter($accept);
+
+        if (count($accept) === 0) {
             return null;
-        } elseif ($jsonAccept = preg_grep('~(?i)^(application/json|[^;/ \t]+/[^;/ \t]+[+]json)[ \t]*(;.*)?$~', $accept)) {
-            return implode(',', $jsonAccept);
-        } else {
+        }
+
+        # If there's only one Accept header, just use it
+        if (count($accept) === 1) {
+            return reset($accept);
+        }
+
+        # If none of the available Accept headers is of type "json", then just use all them
+        $headersWithJson = preg_grep('~(?i)^(application/json|[^;/ \t]+/[^;/ \t]+[+]json)[ \t]*(;.*)?$~', $accept);
+        if (count($headersWithJson) === 0) {
             return implode(',', $accept);
         }
+
+        # If we got here, then we need add quality values (weight), as described in IETF RFC 9110, Items 12.4.2/12.5.1,
+        # to give the highest priority to json-like headers - recalculating the existing ones, if needed
+        return $this->getAcceptHeaderWithAdjustedWeight($accept, $headersWithJson);
+    }
+
+    /**
+    * Create an Accept header string from the given "Accept" headers array, recalculating all weights
+    *
+    * @param string[] $accept            Array of Accept Headers
+    * @param string[] $headersWithJson   Array of Accept Headers of type "json"
+    *
+    * @return string "Accept" Header (e.g. "application/json, text/html; q=0.9")
+    */
+    private function getAcceptHeaderWithAdjustedWeight(array $accept, array $headersWithJson): string
+    {
+        $processedHeaders = [
+            'withApplicationJson' => [],
+            'withJson' => [],
+            'withoutJson' => [],
+        ];
+
+        foreach ($accept as $header) {
+
+            $headerData = $this->getHeaderAndWeight($header);
+
+            if (stripos($headerData['header'], 'application/json') === 0) {
+                $processedHeaders['withApplicationJson'][] = $headerData;
+            } elseif (in_array($header, $headersWithJson, true)) {
+                $processedHeaders['withJson'][] = $headerData;
+            } else {
+                $processedHeaders['withoutJson'][] = $headerData;
+            }
+        }
+
+        $acceptHeaders = [];
+        $currentWeight = 1000;
+
+        $hasMoreThan28Headers = count($accept) > 28;
+
+        foreach($processedHeaders as $headers) {
+            if (count($headers) > 0) {
+                $acceptHeaders[] = $this->adjustWeight($headers, $currentWeight, $hasMoreThan28Headers);
+            }
+        }
+
+        $acceptHeaders = array_merge(...$acceptHeaders);
+
+        return implode(',', $acceptHeaders);
     }
 
     /**
-     * Return the content type based on an array of content-type provided
+     * Given an Accept header, returns an associative array splitting the header and its weight
      *
-     * @param string[] $contentType Array fo content-type
+     * @param string $header "Accept" Header
      *
-     * @return string Content-Type (e.g. application/json)
+     * @return array with the header and its weight
      */
-    private function selectContentTypeHeader($contentType)
+    private function getHeaderAndWeight(string $header): array
     {
-        if (count($contentType) === 0 || (count($contentType) === 1 && $contentType[0] === '')) {
-            return 'application/json';
-        } elseif (preg_grep("/application\/json/i", $contentType)) {
-            return 'application/json';
+        # matches headers with weight, splitting the header and the weight in $outputArray
+        if (preg_match('/(.*);\s*q=(1(?:\.0+)?|0\.\d+)$/', $header, $outputArray) === 1) {
+            $headerData = [
+                'header' => $outputArray[1],
+                'weight' => (int)($outputArray[2] * 1000),
+            ];
         } else {
-            return implode(',', $contentType);
+            $headerData = [
+                'header' => trim($header),
+                'weight' => 1000,
+            ];
+        }
+
+        return $headerData;
+    }
+
+    /**
+     * @param array[] $headers
+     * @param float   $currentWeight
+     * @param bool    $hasMoreThan28Headers
+     * @return string[] array of adjusted "Accept" headers
+     */
+    private function adjustWeight(array $headers, float &$currentWeight, bool $hasMoreThan28Headers): array
+    {
+        usort($headers, function (array $a, array $b) {
+            return $b['weight'] - $a['weight'];
+        });
+
+        $acceptHeaders = [];
+        foreach ($headers as $index => $header) {
+            if($index > 0 && $headers[$index - 1]['weight'] > $header['weight'])
+            {
+                $currentWeight = $this->getNextWeight($currentWeight, $hasMoreThan28Headers);
+            }
+
+            $weight = $currentWeight;
+
+            $acceptHeaders[] = $this->buildAcceptHeader($header['header'], $weight);
+        }
+
+        $currentWeight = $this->getNextWeight($currentWeight, $hasMoreThan28Headers);
+
+        return $acceptHeaders;
+    }
+
+    /**
+     * @param string $header
+     * @param int    $weight
+     * @return string
+     */
+    private function buildAcceptHeader(string $header, int $weight): string
+    {
+        if($weight === 1000) {
+            return $header;
+        }
+
+        return trim($header, '; ') . ';q=' . rtrim(sprintf('%0.3f', $weight / 1000), '0');
+    }
+
+    /**
+     * Calculate the next weight, based on the current one.
+     *
+     * If there are less than 28 "Accept" headers, the weights will be decreased by 1 on its highest significant digit, using the
+     * following formula:
+     *
+     *    next weight = current weight - 10 ^ (floor(log(current weight - 1)))
+     *
+     *    ( current weight minus ( 10 raised to the power of ( floor of (log to the base 10 of ( current weight minus 1 ) ) ) ) )
+     *
+     * Starting from 1000, this generates the following series:
+     *
+     * 1000, 900, 800, 700, 600, 500, 400, 300, 200, 100, 90, 80, 70, 60, 50, 40, 30, 20, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1
+     *
+     * The resulting quality codes are closer to the average "normal" usage of them (like "q=0.9", "q=0.8" and so on), but it only works
+     * if there is a maximum of 28 "Accept" headers. If we have more than that (which is extremely unlikely), then we fall back to a 1-by-1
+     * decrement rule, which will result in quality codes like "q=0.999", "q=0.998" etc.
+     *
+     * @param int  $currentWeight varying from 1 to 1000 (will be divided by 1000 to build the quality value)
+     * @param bool $hasMoreThan28Headers
+     * @return int
+     */
+    public function getNextWeight(int $currentWeight, bool $hasMoreThan28Headers): int
+    {
+        if ($currentWeight <= 1) {
+            return 1;
+        }
+
+        if ($hasMoreThan28Headers) {
+            return $currentWeight - 1;
         }
+
+        return $currentWeight - 10 ** floor( log10($currentWeight - 1) );
     }
 }
diff --git a/codegen/Crm/Objects/Tasks/Model/AssociatedId.php b/codegen/Crm/Objects/Tasks/Model/AssociatedId.php
index d6ed2b0e..74626980 100644
--- a/codegen/Crm/Objects/Tasks/Model/AssociatedId.php
+++ b/codegen/Crm/Objects/Tasks/Model/AssociatedId.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -73,6 +73,23 @@ class AssociatedId implements ModelInterface, ArrayAccess, \JsonSerializable
         'type' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'id' => false,
+        'type' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -93,6 +110,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -181,8 +250,26 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['id'] = $data['id'] ?? null;
-        $this->container['type'] = $data['type'] ?? null;
+        $this->setIfExists('id', $data ?? [], null);
+        $this->setIfExists('type', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -234,6 +321,9 @@ public function getId()
      */
     public function setId($id)
     {
+        if (is_null($id)) {
+            throw new \InvalidArgumentException('non-nullable id cannot be null');
+        }
         $this->container['id'] = $id;
 
         return $this;
@@ -258,6 +348,9 @@ public function getType()
      */
     public function setType($type)
     {
+        if (is_null($type)) {
+            throw new \InvalidArgumentException('non-nullable type cannot be null');
+        }
         $this->container['type'] = $type;
 
         return $this;
diff --git a/codegen/Crm/Objects/Tasks/Model/AssociationSpec.php b/codegen/Crm/Objects/Tasks/Model/AssociationSpec.php
index fdef588f..4621d011 100644
--- a/codegen/Crm/Objects/Tasks/Model/AssociationSpec.php
+++ b/codegen/Crm/Objects/Tasks/Model/AssociationSpec.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -73,6 +73,23 @@ class AssociationSpec implements ModelInterface, ArrayAccess, \JsonSerializable
         'association_type_id' => 'int32'
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'association_category' => false,
+        'association_type_id' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -93,6 +110,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -198,8 +267,26 @@ public function getAssociationCategoryAllowableValues()
      */
     public function __construct(array $data = null)
     {
-        $this->container['association_category'] = $data['association_category'] ?? null;
-        $this->container['association_type_id'] = $data['association_type_id'] ?? null;
+        $this->setIfExists('association_category', $data ?? [], null);
+        $this->setIfExists('association_type_id', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -260,6 +347,9 @@ public function getAssociationCategory()
      */
     public function setAssociationCategory($association_category)
     {
+        if (is_null($association_category)) {
+            throw new \InvalidArgumentException('non-nullable association_category cannot be null');
+        }
         $allowedValues = $this->getAssociationCategoryAllowableValues();
         if (!in_array($association_category, $allowedValues, true)) {
             throw new \InvalidArgumentException(
@@ -294,6 +384,9 @@ public function getAssociationTypeId()
      */
     public function setAssociationTypeId($association_type_id)
     {
+        if (is_null($association_type_id)) {
+            throw new \InvalidArgumentException('non-nullable association_type_id cannot be null');
+        }
         $this->container['association_type_id'] = $association_type_id;
 
         return $this;
diff --git a/codegen/Crm/Objects/Tasks/Model/BatchInputSimplePublicObjectBatchInput.php b/codegen/Crm/Objects/Tasks/Model/BatchInputSimplePublicObjectBatchInput.php
index 37d71d6d..52e39018 100644
--- a/codegen/Crm/Objects/Tasks/Model/BatchInputSimplePublicObjectBatchInput.php
+++ b/codegen/Crm/Objects/Tasks/Model/BatchInputSimplePublicObjectBatchInput.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -71,6 +71,22 @@ class BatchInputSimplePublicObjectBatchInput implements ModelInterface, ArrayAcc
         'inputs' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'inputs' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -91,6 +107,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -176,7 +244,25 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['inputs'] = $data['inputs'] ?? null;
+        $this->setIfExists('inputs', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -225,6 +311,9 @@ public function getInputs()
      */
     public function setInputs($inputs)
     {
+        if (is_null($inputs)) {
+            throw new \InvalidArgumentException('non-nullable inputs cannot be null');
+        }
         $this->container['inputs'] = $inputs;
 
         return $this;
diff --git a/codegen/Crm/Objects/Tasks/Model/BatchInputSimplePublicObjectId.php b/codegen/Crm/Objects/Tasks/Model/BatchInputSimplePublicObjectId.php
index 8a65aa5c..de691896 100644
--- a/codegen/Crm/Objects/Tasks/Model/BatchInputSimplePublicObjectId.php
+++ b/codegen/Crm/Objects/Tasks/Model/BatchInputSimplePublicObjectId.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -71,6 +71,22 @@ class BatchInputSimplePublicObjectId implements ModelInterface, ArrayAccess, \Js
         'inputs' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'inputs' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -91,6 +107,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -176,7 +244,25 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['inputs'] = $data['inputs'] ?? null;
+        $this->setIfExists('inputs', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -225,6 +311,9 @@ public function getInputs()
      */
     public function setInputs($inputs)
     {
+        if (is_null($inputs)) {
+            throw new \InvalidArgumentException('non-nullable inputs cannot be null');
+        }
         $this->container['inputs'] = $inputs;
 
         return $this;
diff --git a/codegen/Crm/Objects/Tasks/Model/BatchInputSimplePublicObjectInputForCreate.php b/codegen/Crm/Objects/Tasks/Model/BatchInputSimplePublicObjectInputForCreate.php
index f6c37934..0ddcd0c0 100644
--- a/codegen/Crm/Objects/Tasks/Model/BatchInputSimplePublicObjectInputForCreate.php
+++ b/codegen/Crm/Objects/Tasks/Model/BatchInputSimplePublicObjectInputForCreate.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -71,6 +71,22 @@ class BatchInputSimplePublicObjectInputForCreate implements ModelInterface, Arra
         'inputs' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'inputs' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -91,6 +107,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -176,7 +244,25 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['inputs'] = $data['inputs'] ?? null;
+        $this->setIfExists('inputs', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -225,6 +311,9 @@ public function getInputs()
      */
     public function setInputs($inputs)
     {
+        if (is_null($inputs)) {
+            throw new \InvalidArgumentException('non-nullable inputs cannot be null');
+        }
         $this->container['inputs'] = $inputs;
 
         return $this;
diff --git a/codegen/Crm/Objects/Tasks/Model/BatchReadInputSimplePublicObjectId.php b/codegen/Crm/Objects/Tasks/Model/BatchReadInputSimplePublicObjectId.php
index dd35318b..061d9123 100644
--- a/codegen/Crm/Objects/Tasks/Model/BatchReadInputSimplePublicObjectId.php
+++ b/codegen/Crm/Objects/Tasks/Model/BatchReadInputSimplePublicObjectId.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -77,6 +77,25 @@ class BatchReadInputSimplePublicObjectId implements ModelInterface, ArrayAccess,
         'properties' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'properties_with_history' => false,
+        'id_property' => false,
+        'inputs' => false,
+        'properties' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -97,6 +116,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -191,10 +262,28 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['properties_with_history'] = $data['properties_with_history'] ?? null;
-        $this->container['id_property'] = $data['id_property'] ?? null;
-        $this->container['inputs'] = $data['inputs'] ?? null;
-        $this->container['properties'] = $data['properties'] ?? null;
+        $this->setIfExists('properties_with_history', $data ?? [], null);
+        $this->setIfExists('id_property', $data ?? [], null);
+        $this->setIfExists('inputs', $data ?? [], null);
+        $this->setIfExists('properties', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -249,6 +338,9 @@ public function getPropertiesWithHistory()
      */
     public function setPropertiesWithHistory($properties_with_history)
     {
+        if (is_null($properties_with_history)) {
+            throw new \InvalidArgumentException('non-nullable properties_with_history cannot be null');
+        }
         $this->container['properties_with_history'] = $properties_with_history;
 
         return $this;
@@ -273,6 +365,9 @@ public function getIdProperty()
      */
     public function setIdProperty($id_property)
     {
+        if (is_null($id_property)) {
+            throw new \InvalidArgumentException('non-nullable id_property cannot be null');
+        }
         $this->container['id_property'] = $id_property;
 
         return $this;
@@ -297,6 +392,9 @@ public function getInputs()
      */
     public function setInputs($inputs)
     {
+        if (is_null($inputs)) {
+            throw new \InvalidArgumentException('non-nullable inputs cannot be null');
+        }
         $this->container['inputs'] = $inputs;
 
         return $this;
@@ -321,6 +419,9 @@ public function getProperties()
      */
     public function setProperties($properties)
     {
+        if (is_null($properties)) {
+            throw new \InvalidArgumentException('non-nullable properties cannot be null');
+        }
         $this->container['properties'] = $properties;
 
         return $this;
diff --git a/codegen/Crm/Objects/Tasks/Model/BatchResponseSimplePublicObject.php b/codegen/Crm/Objects/Tasks/Model/BatchResponseSimplePublicObject.php
index 28704ed4..4e8f7974 100644
--- a/codegen/Crm/Objects/Tasks/Model/BatchResponseSimplePublicObject.php
+++ b/codegen/Crm/Objects/Tasks/Model/BatchResponseSimplePublicObject.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -81,6 +81,27 @@ class BatchResponseSimplePublicObject implements ModelInterface, ArrayAccess, \J
         'status' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'completed_at' => false,
+        'requested_at' => false,
+        'started_at' => false,
+        'links' => false,
+        'results' => false,
+        'status' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -101,6 +122,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -220,12 +293,30 @@ public function getStatusAllowableValues()
      */
     public function __construct(array $data = null)
     {
-        $this->container['completed_at'] = $data['completed_at'] ?? null;
-        $this->container['requested_at'] = $data['requested_at'] ?? null;
-        $this->container['started_at'] = $data['started_at'] ?? null;
-        $this->container['links'] = $data['links'] ?? null;
-        $this->container['results'] = $data['results'] ?? null;
-        $this->container['status'] = $data['status'] ?? null;
+        $this->setIfExists('completed_at', $data ?? [], null);
+        $this->setIfExists('requested_at', $data ?? [], null);
+        $this->setIfExists('started_at', $data ?? [], null);
+        $this->setIfExists('links', $data ?? [], null);
+        $this->setIfExists('results', $data ?? [], null);
+        $this->setIfExists('status', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -292,6 +383,9 @@ public function getCompletedAt()
      */
     public function setCompletedAt($completed_at)
     {
+        if (is_null($completed_at)) {
+            throw new \InvalidArgumentException('non-nullable completed_at cannot be null');
+        }
         $this->container['completed_at'] = $completed_at;
 
         return $this;
@@ -316,6 +410,9 @@ public function getRequestedAt()
      */
     public function setRequestedAt($requested_at)
     {
+        if (is_null($requested_at)) {
+            throw new \InvalidArgumentException('non-nullable requested_at cannot be null');
+        }
         $this->container['requested_at'] = $requested_at;
 
         return $this;
@@ -340,6 +437,9 @@ public function getStartedAt()
      */
     public function setStartedAt($started_at)
     {
+        if (is_null($started_at)) {
+            throw new \InvalidArgumentException('non-nullable started_at cannot be null');
+        }
         $this->container['started_at'] = $started_at;
 
         return $this;
@@ -364,6 +464,9 @@ public function getLinks()
      */
     public function setLinks($links)
     {
+        if (is_null($links)) {
+            throw new \InvalidArgumentException('non-nullable links cannot be null');
+        }
         $this->container['links'] = $links;
 
         return $this;
@@ -388,6 +491,9 @@ public function getResults()
      */
     public function setResults($results)
     {
+        if (is_null($results)) {
+            throw new \InvalidArgumentException('non-nullable results cannot be null');
+        }
         $this->container['results'] = $results;
 
         return $this;
@@ -412,6 +518,9 @@ public function getStatus()
      */
     public function setStatus($status)
     {
+        if (is_null($status)) {
+            throw new \InvalidArgumentException('non-nullable status cannot be null');
+        }
         $allowedValues = $this->getStatusAllowableValues();
         if (!in_array($status, $allowedValues, true)) {
             throw new \InvalidArgumentException(
diff --git a/codegen/Crm/Objects/Tasks/Model/BatchResponseSimplePublicObjectWithErrors.php b/codegen/Crm/Objects/Tasks/Model/BatchResponseSimplePublicObjectWithErrors.php
index afdd0836..adbfa5f7 100644
--- a/codegen/Crm/Objects/Tasks/Model/BatchResponseSimplePublicObjectWithErrors.php
+++ b/codegen/Crm/Objects/Tasks/Model/BatchResponseSimplePublicObjectWithErrors.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -85,6 +85,29 @@ class BatchResponseSimplePublicObjectWithErrors implements ModelInterface, Array
         'status' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'completed_at' => false,
+        'num_errors' => false,
+        'requested_at' => false,
+        'started_at' => false,
+        'links' => false,
+        'results' => false,
+        'errors' => false,
+        'status' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -105,6 +128,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -230,14 +305,32 @@ public function getStatusAllowableValues()
      */
     public function __construct(array $data = null)
     {
-        $this->container['completed_at'] = $data['completed_at'] ?? null;
-        $this->container['num_errors'] = $data['num_errors'] ?? null;
-        $this->container['requested_at'] = $data['requested_at'] ?? null;
-        $this->container['started_at'] = $data['started_at'] ?? null;
-        $this->container['links'] = $data['links'] ?? null;
-        $this->container['results'] = $data['results'] ?? null;
-        $this->container['errors'] = $data['errors'] ?? null;
-        $this->container['status'] = $data['status'] ?? null;
+        $this->setIfExists('completed_at', $data ?? [], null);
+        $this->setIfExists('num_errors', $data ?? [], null);
+        $this->setIfExists('requested_at', $data ?? [], null);
+        $this->setIfExists('started_at', $data ?? [], null);
+        $this->setIfExists('links', $data ?? [], null);
+        $this->setIfExists('results', $data ?? [], null);
+        $this->setIfExists('errors', $data ?? [], null);
+        $this->setIfExists('status', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -304,6 +397,9 @@ public function getCompletedAt()
      */
     public function setCompletedAt($completed_at)
     {
+        if (is_null($completed_at)) {
+            throw new \InvalidArgumentException('non-nullable completed_at cannot be null');
+        }
         $this->container['completed_at'] = $completed_at;
 
         return $this;
@@ -328,6 +424,9 @@ public function getNumErrors()
      */
     public function setNumErrors($num_errors)
     {
+        if (is_null($num_errors)) {
+            throw new \InvalidArgumentException('non-nullable num_errors cannot be null');
+        }
         $this->container['num_errors'] = $num_errors;
 
         return $this;
@@ -352,6 +451,9 @@ public function getRequestedAt()
      */
     public function setRequestedAt($requested_at)
     {
+        if (is_null($requested_at)) {
+            throw new \InvalidArgumentException('non-nullable requested_at cannot be null');
+        }
         $this->container['requested_at'] = $requested_at;
 
         return $this;
@@ -376,6 +478,9 @@ public function getStartedAt()
      */
     public function setStartedAt($started_at)
     {
+        if (is_null($started_at)) {
+            throw new \InvalidArgumentException('non-nullable started_at cannot be null');
+        }
         $this->container['started_at'] = $started_at;
 
         return $this;
@@ -400,6 +505,9 @@ public function getLinks()
      */
     public function setLinks($links)
     {
+        if (is_null($links)) {
+            throw new \InvalidArgumentException('non-nullable links cannot be null');
+        }
         $this->container['links'] = $links;
 
         return $this;
@@ -424,6 +532,9 @@ public function getResults()
      */
     public function setResults($results)
     {
+        if (is_null($results)) {
+            throw new \InvalidArgumentException('non-nullable results cannot be null');
+        }
         $this->container['results'] = $results;
 
         return $this;
@@ -448,6 +559,9 @@ public function getErrors()
      */
     public function setErrors($errors)
     {
+        if (is_null($errors)) {
+            throw new \InvalidArgumentException('non-nullable errors cannot be null');
+        }
         $this->container['errors'] = $errors;
 
         return $this;
@@ -472,6 +586,9 @@ public function getStatus()
      */
     public function setStatus($status)
     {
+        if (is_null($status)) {
+            throw new \InvalidArgumentException('non-nullable status cannot be null');
+        }
         $allowedValues = $this->getStatusAllowableValues();
         if (!in_array($status, $allowedValues, true)) {
             throw new \InvalidArgumentException(
diff --git a/codegen/Crm/Objects/Tasks/Model/CollectionResponseAssociatedId.php b/codegen/Crm/Objects/Tasks/Model/CollectionResponseAssociatedId.php
index b892a2af..34530efa 100644
--- a/codegen/Crm/Objects/Tasks/Model/CollectionResponseAssociatedId.php
+++ b/codegen/Crm/Objects/Tasks/Model/CollectionResponseAssociatedId.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -73,6 +73,23 @@ class CollectionResponseAssociatedId implements ModelInterface, ArrayAccess, \Js
         'results' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'paging' => false,
+        'results' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -93,6 +110,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -181,8 +250,26 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['paging'] = $data['paging'] ?? null;
-        $this->container['results'] = $data['results'] ?? null;
+        $this->setIfExists('paging', $data ?? [], null);
+        $this->setIfExists('results', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -231,6 +318,9 @@ public function getPaging()
      */
     public function setPaging($paging)
     {
+        if (is_null($paging)) {
+            throw new \InvalidArgumentException('non-nullable paging cannot be null');
+        }
         $this->container['paging'] = $paging;
 
         return $this;
@@ -255,6 +345,9 @@ public function getResults()
      */
     public function setResults($results)
     {
+        if (is_null($results)) {
+            throw new \InvalidArgumentException('non-nullable results cannot be null');
+        }
         $this->container['results'] = $results;
 
         return $this;
diff --git a/codegen/Crm/Objects/Tasks/Model/CollectionResponseSimplePublicObjectWithAssociationsForwardPaging.php b/codegen/Crm/Objects/Tasks/Model/CollectionResponseSimplePublicObjectWithAssociationsForwardPaging.php
index f6339e68..0b0ec0a6 100644
--- a/codegen/Crm/Objects/Tasks/Model/CollectionResponseSimplePublicObjectWithAssociationsForwardPaging.php
+++ b/codegen/Crm/Objects/Tasks/Model/CollectionResponseSimplePublicObjectWithAssociationsForwardPaging.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -73,6 +73,23 @@ class CollectionResponseSimplePublicObjectWithAssociationsForwardPaging implemen
         'results' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'paging' => false,
+        'results' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -93,6 +110,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -181,8 +250,26 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['paging'] = $data['paging'] ?? null;
-        $this->container['results'] = $data['results'] ?? null;
+        $this->setIfExists('paging', $data ?? [], null);
+        $this->setIfExists('results', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -231,6 +318,9 @@ public function getPaging()
      */
     public function setPaging($paging)
     {
+        if (is_null($paging)) {
+            throw new \InvalidArgumentException('non-nullable paging cannot be null');
+        }
         $this->container['paging'] = $paging;
 
         return $this;
@@ -255,6 +345,9 @@ public function getResults()
      */
     public function setResults($results)
     {
+        if (is_null($results)) {
+            throw new \InvalidArgumentException('non-nullable results cannot be null');
+        }
         $this->container['results'] = $results;
 
         return $this;
diff --git a/codegen/Crm/Objects/Tasks/Model/CollectionResponseWithTotalSimplePublicObjectForwardPaging.php b/codegen/Crm/Objects/Tasks/Model/CollectionResponseWithTotalSimplePublicObjectForwardPaging.php
index 6c89efb0..2e0360cb 100644
--- a/codegen/Crm/Objects/Tasks/Model/CollectionResponseWithTotalSimplePublicObjectForwardPaging.php
+++ b/codegen/Crm/Objects/Tasks/Model/CollectionResponseWithTotalSimplePublicObjectForwardPaging.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -75,6 +75,24 @@ class CollectionResponseWithTotalSimplePublicObjectForwardPaging implements Mode
         'results' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'total' => false,
+        'paging' => false,
+        'results' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -95,6 +113,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -186,9 +256,27 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['total'] = $data['total'] ?? null;
-        $this->container['paging'] = $data['paging'] ?? null;
-        $this->container['results'] = $data['results'] ?? null;
+        $this->setIfExists('total', $data ?? [], null);
+        $this->setIfExists('paging', $data ?? [], null);
+        $this->setIfExists('results', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -240,6 +328,9 @@ public function getTotal()
      */
     public function setTotal($total)
     {
+        if (is_null($total)) {
+            throw new \InvalidArgumentException('non-nullable total cannot be null');
+        }
         $this->container['total'] = $total;
 
         return $this;
@@ -264,6 +355,9 @@ public function getPaging()
      */
     public function setPaging($paging)
     {
+        if (is_null($paging)) {
+            throw new \InvalidArgumentException('non-nullable paging cannot be null');
+        }
         $this->container['paging'] = $paging;
 
         return $this;
@@ -288,6 +382,9 @@ public function getResults()
      */
     public function setResults($results)
     {
+        if (is_null($results)) {
+            throw new \InvalidArgumentException('non-nullable results cannot be null');
+        }
         $this->container['results'] = $results;
 
         return $this;
diff --git a/codegen/Crm/Objects/Tasks/Model/Error.php b/codegen/Crm/Objects/Tasks/Model/Error.php
index 18797742..335fb48b 100644
--- a/codegen/Crm/Objects/Tasks/Model/Error.php
+++ b/codegen/Crm/Objects/Tasks/Model/Error.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -83,6 +83,28 @@ class Error implements ModelInterface, ArrayAccess, \JsonSerializable
         'errors' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'sub_category' => false,
+        'context' => false,
+        'correlation_id' => false,
+        'links' => false,
+        'message' => false,
+        'category' => false,
+        'errors' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -103,6 +125,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -206,13 +280,31 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['sub_category'] = $data['sub_category'] ?? null;
-        $this->container['context'] = $data['context'] ?? null;
-        $this->container['correlation_id'] = $data['correlation_id'] ?? null;
-        $this->container['links'] = $data['links'] ?? null;
-        $this->container['message'] = $data['message'] ?? null;
-        $this->container['category'] = $data['category'] ?? null;
-        $this->container['errors'] = $data['errors'] ?? null;
+        $this->setIfExists('sub_category', $data ?? [], null);
+        $this->setIfExists('context', $data ?? [], null);
+        $this->setIfExists('correlation_id', $data ?? [], null);
+        $this->setIfExists('links', $data ?? [], null);
+        $this->setIfExists('message', $data ?? [], null);
+        $this->setIfExists('category', $data ?? [], null);
+        $this->setIfExists('errors', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -267,6 +359,9 @@ public function getSubCategory()
      */
     public function setSubCategory($sub_category)
     {
+        if (is_null($sub_category)) {
+            throw new \InvalidArgumentException('non-nullable sub_category cannot be null');
+        }
         $this->container['sub_category'] = $sub_category;
 
         return $this;
@@ -291,6 +386,9 @@ public function getContext()
      */
     public function setContext($context)
     {
+        if (is_null($context)) {
+            throw new \InvalidArgumentException('non-nullable context cannot be null');
+        }
         $this->container['context'] = $context;
 
         return $this;
@@ -315,6 +413,9 @@ public function getCorrelationId()
      */
     public function setCorrelationId($correlation_id)
     {
+        if (is_null($correlation_id)) {
+            throw new \InvalidArgumentException('non-nullable correlation_id cannot be null');
+        }
         $this->container['correlation_id'] = $correlation_id;
 
         return $this;
@@ -339,6 +440,9 @@ public function getLinks()
      */
     public function setLinks($links)
     {
+        if (is_null($links)) {
+            throw new \InvalidArgumentException('non-nullable links cannot be null');
+        }
         $this->container['links'] = $links;
 
         return $this;
@@ -363,6 +467,9 @@ public function getMessage()
      */
     public function setMessage($message)
     {
+        if (is_null($message)) {
+            throw new \InvalidArgumentException('non-nullable message cannot be null');
+        }
         $this->container['message'] = $message;
 
         return $this;
@@ -387,6 +494,9 @@ public function getCategory()
      */
     public function setCategory($category)
     {
+        if (is_null($category)) {
+            throw new \InvalidArgumentException('non-nullable category cannot be null');
+        }
         $this->container['category'] = $category;
 
         return $this;
@@ -411,6 +521,9 @@ public function getErrors()
      */
     public function setErrors($errors)
     {
+        if (is_null($errors)) {
+            throw new \InvalidArgumentException('non-nullable errors cannot be null');
+        }
         $this->container['errors'] = $errors;
 
         return $this;
diff --git a/codegen/Crm/Objects/Tasks/Model/ErrorDetail.php b/codegen/Crm/Objects/Tasks/Model/ErrorDetail.php
index c50815b3..912976a6 100644
--- a/codegen/Crm/Objects/Tasks/Model/ErrorDetail.php
+++ b/codegen/Crm/Objects/Tasks/Model/ErrorDetail.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -79,6 +79,26 @@ class ErrorDetail implements ModelInterface, ArrayAccess, \JsonSerializable
         'message' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'sub_category' => false,
+        'code' => false,
+        'in' => false,
+        'context' => false,
+        'message' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -99,6 +119,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -196,11 +268,29 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['sub_category'] = $data['sub_category'] ?? null;
-        $this->container['code'] = $data['code'] ?? null;
-        $this->container['in'] = $data['in'] ?? null;
-        $this->container['context'] = $data['context'] ?? null;
-        $this->container['message'] = $data['message'] ?? null;
+        $this->setIfExists('sub_category', $data ?? [], null);
+        $this->setIfExists('code', $data ?? [], null);
+        $this->setIfExists('in', $data ?? [], null);
+        $this->setIfExists('context', $data ?? [], null);
+        $this->setIfExists('message', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -249,6 +339,9 @@ public function getSubCategory()
      */
     public function setSubCategory($sub_category)
     {
+        if (is_null($sub_category)) {
+            throw new \InvalidArgumentException('non-nullable sub_category cannot be null');
+        }
         $this->container['sub_category'] = $sub_category;
 
         return $this;
@@ -273,6 +366,9 @@ public function getCode()
      */
     public function setCode($code)
     {
+        if (is_null($code)) {
+            throw new \InvalidArgumentException('non-nullable code cannot be null');
+        }
         $this->container['code'] = $code;
 
         return $this;
@@ -297,6 +393,9 @@ public function getIn()
      */
     public function setIn($in)
     {
+        if (is_null($in)) {
+            throw new \InvalidArgumentException('non-nullable in cannot be null');
+        }
         $this->container['in'] = $in;
 
         return $this;
@@ -321,6 +420,9 @@ public function getContext()
      */
     public function setContext($context)
     {
+        if (is_null($context)) {
+            throw new \InvalidArgumentException('non-nullable context cannot be null');
+        }
         $this->container['context'] = $context;
 
         return $this;
@@ -345,6 +447,9 @@ public function getMessage()
      */
     public function setMessage($message)
     {
+        if (is_null($message)) {
+            throw new \InvalidArgumentException('non-nullable message cannot be null');
+        }
         $this->container['message'] = $message;
 
         return $this;
diff --git a/codegen/Crm/Objects/Tasks/Model/Filter.php b/codegen/Crm/Objects/Tasks/Model/Filter.php
index 93e3b7f9..d7fda332 100644
--- a/codegen/Crm/Objects/Tasks/Model/Filter.php
+++ b/codegen/Crm/Objects/Tasks/Model/Filter.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -79,6 +79,26 @@ class Filter implements ModelInterface, ArrayAccess, \JsonSerializable
         'operator' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'high_value' => false,
+        'property_name' => false,
+        'values' => false,
+        'value' => false,
+        'operator' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -99,6 +119,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -233,11 +305,29 @@ public function getOperatorAllowableValues()
      */
     public function __construct(array $data = null)
     {
-        $this->container['high_value'] = $data['high_value'] ?? null;
-        $this->container['property_name'] = $data['property_name'] ?? null;
-        $this->container['values'] = $data['values'] ?? null;
-        $this->container['value'] = $data['value'] ?? null;
-        $this->container['operator'] = $data['operator'] ?? null;
+        $this->setIfExists('high_value', $data ?? [], null);
+        $this->setIfExists('property_name', $data ?? [], null);
+        $this->setIfExists('values', $data ?? [], null);
+        $this->setIfExists('value', $data ?? [], null);
+        $this->setIfExists('operator', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -298,6 +388,9 @@ public function getHighValue()
      */
     public function setHighValue($high_value)
     {
+        if (is_null($high_value)) {
+            throw new \InvalidArgumentException('non-nullable high_value cannot be null');
+        }
         $this->container['high_value'] = $high_value;
 
         return $this;
@@ -322,6 +415,9 @@ public function getPropertyName()
      */
     public function setPropertyName($property_name)
     {
+        if (is_null($property_name)) {
+            throw new \InvalidArgumentException('non-nullable property_name cannot be null');
+        }
         $this->container['property_name'] = $property_name;
 
         return $this;
@@ -346,6 +442,9 @@ public function getValues()
      */
     public function setValues($values)
     {
+        if (is_null($values)) {
+            throw new \InvalidArgumentException('non-nullable values cannot be null');
+        }
         $this->container['values'] = $values;
 
         return $this;
@@ -370,6 +469,9 @@ public function getValue()
      */
     public function setValue($value)
     {
+        if (is_null($value)) {
+            throw new \InvalidArgumentException('non-nullable value cannot be null');
+        }
         $this->container['value'] = $value;
 
         return $this;
@@ -394,6 +496,9 @@ public function getOperator()
      */
     public function setOperator($operator)
     {
+        if (is_null($operator)) {
+            throw new \InvalidArgumentException('non-nullable operator cannot be null');
+        }
         $allowedValues = $this->getOperatorAllowableValues();
         if (!in_array($operator, $allowedValues, true)) {
             throw new \InvalidArgumentException(
diff --git a/codegen/Crm/Objects/Tasks/Model/FilterGroup.php b/codegen/Crm/Objects/Tasks/Model/FilterGroup.php
index 1f5fa313..1a4cafa7 100644
--- a/codegen/Crm/Objects/Tasks/Model/FilterGroup.php
+++ b/codegen/Crm/Objects/Tasks/Model/FilterGroup.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -71,6 +71,22 @@ class FilterGroup implements ModelInterface, ArrayAccess, \JsonSerializable
         'filters' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'filters' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -91,6 +107,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -176,7 +244,25 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['filters'] = $data['filters'] ?? null;
+        $this->setIfExists('filters', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -225,6 +311,9 @@ public function getFilters()
      */
     public function setFilters($filters)
     {
+        if (is_null($filters)) {
+            throw new \InvalidArgumentException('non-nullable filters cannot be null');
+        }
         $this->container['filters'] = $filters;
 
         return $this;
diff --git a/codegen/Crm/Objects/Tasks/Model/ForwardPaging.php b/codegen/Crm/Objects/Tasks/Model/ForwardPaging.php
index 8fbd8996..e6837b1e 100644
--- a/codegen/Crm/Objects/Tasks/Model/ForwardPaging.php
+++ b/codegen/Crm/Objects/Tasks/Model/ForwardPaging.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -71,6 +71,22 @@ class ForwardPaging implements ModelInterface, ArrayAccess, \JsonSerializable
         'next' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'next' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -91,6 +107,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -176,7 +244,25 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['next'] = $data['next'] ?? null;
+        $this->setIfExists('next', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -222,6 +308,9 @@ public function getNext()
      */
     public function setNext($next)
     {
+        if (is_null($next)) {
+            throw new \InvalidArgumentException('non-nullable next cannot be null');
+        }
         $this->container['next'] = $next;
 
         return $this;
diff --git a/codegen/Crm/Objects/Tasks/Model/ModelInterface.php b/codegen/Crm/Objects/Tasks/Model/ModelInterface.php
index 9c95dbc9..b2c66ea6 100644
--- a/codegen/Crm/Objects/Tasks/Model/ModelInterface.php
+++ b/codegen/Crm/Objects/Tasks/Model/ModelInterface.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -92,4 +92,20 @@ public function listInvalidProperties();
      * @return bool
      */
     public function valid();
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool;
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool;
 }
diff --git a/codegen/Crm/Objects/Tasks/Model/NextPage.php b/codegen/Crm/Objects/Tasks/Model/NextPage.php
index 2f0c1174..491bc3b6 100644
--- a/codegen/Crm/Objects/Tasks/Model/NextPage.php
+++ b/codegen/Crm/Objects/Tasks/Model/NextPage.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -73,6 +73,23 @@ class NextPage implements ModelInterface, ArrayAccess, \JsonSerializable
         'after' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'link' => false,
+        'after' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -93,6 +110,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -181,8 +250,26 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['link'] = $data['link'] ?? null;
-        $this->container['after'] = $data['after'] ?? null;
+        $this->setIfExists('link', $data ?? [], null);
+        $this->setIfExists('after', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -231,6 +318,9 @@ public function getLink()
      */
     public function setLink($link)
     {
+        if (is_null($link)) {
+            throw new \InvalidArgumentException('non-nullable link cannot be null');
+        }
         $this->container['link'] = $link;
 
         return $this;
@@ -255,6 +345,9 @@ public function getAfter()
      */
     public function setAfter($after)
     {
+        if (is_null($after)) {
+            throw new \InvalidArgumentException('non-nullable after cannot be null');
+        }
         $this->container['after'] = $after;
 
         return $this;
diff --git a/codegen/Crm/Objects/Tasks/Model/Paging.php b/codegen/Crm/Objects/Tasks/Model/Paging.php
index 6877c3a8..a24a69f0 100644
--- a/codegen/Crm/Objects/Tasks/Model/Paging.php
+++ b/codegen/Crm/Objects/Tasks/Model/Paging.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -73,6 +73,23 @@ class Paging implements ModelInterface, ArrayAccess, \JsonSerializable
         'prev' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'next' => false,
+        'prev' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -93,6 +110,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -181,8 +250,26 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['next'] = $data['next'] ?? null;
-        $this->container['prev'] = $data['prev'] ?? null;
+        $this->setIfExists('next', $data ?? [], null);
+        $this->setIfExists('prev', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -228,6 +315,9 @@ public function getNext()
      */
     public function setNext($next)
     {
+        if (is_null($next)) {
+            throw new \InvalidArgumentException('non-nullable next cannot be null');
+        }
         $this->container['next'] = $next;
 
         return $this;
@@ -252,6 +342,9 @@ public function getPrev()
      */
     public function setPrev($prev)
     {
+        if (is_null($prev)) {
+            throw new \InvalidArgumentException('non-nullable prev cannot be null');
+        }
         $this->container['prev'] = $prev;
 
         return $this;
diff --git a/codegen/Crm/Objects/Tasks/Model/PreviousPage.php b/codegen/Crm/Objects/Tasks/Model/PreviousPage.php
index 925ce553..b108baab 100644
--- a/codegen/Crm/Objects/Tasks/Model/PreviousPage.php
+++ b/codegen/Crm/Objects/Tasks/Model/PreviousPage.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -73,6 +73,23 @@ class PreviousPage implements ModelInterface, ArrayAccess, \JsonSerializable
         'link' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'before' => false,
+        'link' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -93,6 +110,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -181,8 +250,26 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['before'] = $data['before'] ?? null;
-        $this->container['link'] = $data['link'] ?? null;
+        $this->setIfExists('before', $data ?? [], null);
+        $this->setIfExists('link', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -231,6 +318,9 @@ public function getBefore()
      */
     public function setBefore($before)
     {
+        if (is_null($before)) {
+            throw new \InvalidArgumentException('non-nullable before cannot be null');
+        }
         $this->container['before'] = $before;
 
         return $this;
@@ -255,6 +345,9 @@ public function getLink()
      */
     public function setLink($link)
     {
+        if (is_null($link)) {
+            throw new \InvalidArgumentException('non-nullable link cannot be null');
+        }
         $this->container['link'] = $link;
 
         return $this;
diff --git a/codegen/Crm/Objects/Tasks/Model/PublicAssociationsForObject.php b/codegen/Crm/Objects/Tasks/Model/PublicAssociationsForObject.php
index 19d8af9d..59495766 100644
--- a/codegen/Crm/Objects/Tasks/Model/PublicAssociationsForObject.php
+++ b/codegen/Crm/Objects/Tasks/Model/PublicAssociationsForObject.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -73,6 +73,23 @@ class PublicAssociationsForObject implements ModelInterface, ArrayAccess, \JsonS
         'to' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'types' => false,
+        'to' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -93,6 +110,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -181,8 +250,26 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['types'] = $data['types'] ?? null;
-        $this->container['to'] = $data['to'] ?? null;
+        $this->setIfExists('types', $data ?? [], null);
+        $this->setIfExists('to', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -234,6 +321,9 @@ public function getTypes()
      */
     public function setTypes($types)
     {
+        if (is_null($types)) {
+            throw new \InvalidArgumentException('non-nullable types cannot be null');
+        }
         $this->container['types'] = $types;
 
         return $this;
@@ -258,6 +348,9 @@ public function getTo()
      */
     public function setTo($to)
     {
+        if (is_null($to)) {
+            throw new \InvalidArgumentException('non-nullable to cannot be null');
+        }
         $this->container['to'] = $to;
 
         return $this;
diff --git a/codegen/Crm/Objects/Tasks/Model/PublicGdprDeleteInput.php b/codegen/Crm/Objects/Tasks/Model/PublicGdprDeleteInput.php
index fe9ee93a..b34fcac6 100644
--- a/codegen/Crm/Objects/Tasks/Model/PublicGdprDeleteInput.php
+++ b/codegen/Crm/Objects/Tasks/Model/PublicGdprDeleteInput.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -73,6 +73,23 @@ class PublicGdprDeleteInput implements ModelInterface, ArrayAccess, \JsonSeriali
         'object_id' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'id_property' => false,
+        'object_id' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -93,6 +110,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -181,8 +250,26 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['id_property'] = $data['id_property'] ?? null;
-        $this->container['object_id'] = $data['object_id'] ?? null;
+        $this->setIfExists('id_property', $data ?? [], null);
+        $this->setIfExists('object_id', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -231,6 +318,9 @@ public function getIdProperty()
      */
     public function setIdProperty($id_property)
     {
+        if (is_null($id_property)) {
+            throw new \InvalidArgumentException('non-nullable id_property cannot be null');
+        }
         $this->container['id_property'] = $id_property;
 
         return $this;
@@ -255,6 +345,9 @@ public function getObjectId()
      */
     public function setObjectId($object_id)
     {
+        if (is_null($object_id)) {
+            throw new \InvalidArgumentException('non-nullable object_id cannot be null');
+        }
         $this->container['object_id'] = $object_id;
 
         return $this;
diff --git a/codegen/Crm/Objects/Tasks/Model/PublicMergeInput.php b/codegen/Crm/Objects/Tasks/Model/PublicMergeInput.php
index 5020497b..3e4222fd 100644
--- a/codegen/Crm/Objects/Tasks/Model/PublicMergeInput.php
+++ b/codegen/Crm/Objects/Tasks/Model/PublicMergeInput.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -73,6 +73,23 @@ class PublicMergeInput implements ModelInterface, ArrayAccess, \JsonSerializable
         'primary_object_id' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'object_id_to_merge' => false,
+        'primary_object_id' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -93,6 +110,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -181,8 +250,26 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['object_id_to_merge'] = $data['object_id_to_merge'] ?? null;
-        $this->container['primary_object_id'] = $data['primary_object_id'] ?? null;
+        $this->setIfExists('object_id_to_merge', $data ?? [], null);
+        $this->setIfExists('primary_object_id', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -234,6 +321,9 @@ public function getObjectIdToMerge()
      */
     public function setObjectIdToMerge($object_id_to_merge)
     {
+        if (is_null($object_id_to_merge)) {
+            throw new \InvalidArgumentException('non-nullable object_id_to_merge cannot be null');
+        }
         $this->container['object_id_to_merge'] = $object_id_to_merge;
 
         return $this;
@@ -258,6 +348,9 @@ public function getPrimaryObjectId()
      */
     public function setPrimaryObjectId($primary_object_id)
     {
+        if (is_null($primary_object_id)) {
+            throw new \InvalidArgumentException('non-nullable primary_object_id cannot be null');
+        }
         $this->container['primary_object_id'] = $primary_object_id;
 
         return $this;
diff --git a/codegen/Crm/Objects/Tasks/Model/PublicObjectId.php b/codegen/Crm/Objects/Tasks/Model/PublicObjectId.php
index 3b42c02e..23745af8 100644
--- a/codegen/Crm/Objects/Tasks/Model/PublicObjectId.php
+++ b/codegen/Crm/Objects/Tasks/Model/PublicObjectId.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -71,6 +71,22 @@ class PublicObjectId implements ModelInterface, ArrayAccess, \JsonSerializable
         'id' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'id' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -91,6 +107,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -176,7 +244,25 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['id'] = $data['id'] ?? null;
+        $this->setIfExists('id', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -225,6 +311,9 @@ public function getId()
      */
     public function setId($id)
     {
+        if (is_null($id)) {
+            throw new \InvalidArgumentException('non-nullable id cannot be null');
+        }
         $this->container['id'] = $id;
 
         return $this;
diff --git a/codegen/Crm/Objects/Tasks/Model/PublicObjectSearchRequest.php b/codegen/Crm/Objects/Tasks/Model/PublicObjectSearchRequest.php
index ebcf55ad..1cd9bf03 100644
--- a/codegen/Crm/Objects/Tasks/Model/PublicObjectSearchRequest.php
+++ b/codegen/Crm/Objects/Tasks/Model/PublicObjectSearchRequest.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -81,6 +81,27 @@ class PublicObjectSearchRequest implements ModelInterface, ArrayAccess, \JsonSer
         'filter_groups' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'query' => false,
+        'limit' => false,
+        'after' => false,
+        'sorts' => false,
+        'properties' => false,
+        'filter_groups' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -101,6 +122,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -201,12 +274,30 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['query'] = $data['query'] ?? null;
-        $this->container['limit'] = $data['limit'] ?? null;
-        $this->container['after'] = $data['after'] ?? null;
-        $this->container['sorts'] = $data['sorts'] ?? null;
-        $this->container['properties'] = $data['properties'] ?? null;
-        $this->container['filter_groups'] = $data['filter_groups'] ?? null;
+        $this->setIfExists('query', $data ?? [], null);
+        $this->setIfExists('limit', $data ?? [], null);
+        $this->setIfExists('after', $data ?? [], null);
+        $this->setIfExists('sorts', $data ?? [], null);
+        $this->setIfExists('properties', $data ?? [], null);
+        $this->setIfExists('filter_groups', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -267,6 +358,9 @@ public function getQuery()
      */
     public function setQuery($query)
     {
+        if (is_null($query)) {
+            throw new \InvalidArgumentException('non-nullable query cannot be null');
+        }
         $this->container['query'] = $query;
 
         return $this;
@@ -291,6 +385,9 @@ public function getLimit()
      */
     public function setLimit($limit)
     {
+        if (is_null($limit)) {
+            throw new \InvalidArgumentException('non-nullable limit cannot be null');
+        }
         $this->container['limit'] = $limit;
 
         return $this;
@@ -315,6 +412,9 @@ public function getAfter()
      */
     public function setAfter($after)
     {
+        if (is_null($after)) {
+            throw new \InvalidArgumentException('non-nullable after cannot be null');
+        }
         $this->container['after'] = $after;
 
         return $this;
@@ -339,6 +439,9 @@ public function getSorts()
      */
     public function setSorts($sorts)
     {
+        if (is_null($sorts)) {
+            throw new \InvalidArgumentException('non-nullable sorts cannot be null');
+        }
         $this->container['sorts'] = $sorts;
 
         return $this;
@@ -363,6 +466,9 @@ public function getProperties()
      */
     public function setProperties($properties)
     {
+        if (is_null($properties)) {
+            throw new \InvalidArgumentException('non-nullable properties cannot be null');
+        }
         $this->container['properties'] = $properties;
 
         return $this;
@@ -387,6 +493,9 @@ public function getFilterGroups()
      */
     public function setFilterGroups($filter_groups)
     {
+        if (is_null($filter_groups)) {
+            throw new \InvalidArgumentException('non-nullable filter_groups cannot be null');
+        }
         $this->container['filter_groups'] = $filter_groups;
 
         return $this;
diff --git a/codegen/Crm/Objects/Tasks/Model/SimplePublicObject.php b/codegen/Crm/Objects/Tasks/Model/SimplePublicObject.php
index 6690bf47..79824744 100644
--- a/codegen/Crm/Objects/Tasks/Model/SimplePublicObject.php
+++ b/codegen/Crm/Objects/Tasks/Model/SimplePublicObject.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -83,6 +83,28 @@ class SimplePublicObject implements ModelInterface, ArrayAccess, \JsonSerializab
         'updated_at' => 'date-time'
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'created_at' => false,
+        'archived' => false,
+        'archived_at' => false,
+        'properties_with_history' => false,
+        'id' => false,
+        'properties' => false,
+        'updated_at' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -103,6 +125,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -206,13 +280,31 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['created_at'] = $data['created_at'] ?? null;
-        $this->container['archived'] = $data['archived'] ?? null;
-        $this->container['archived_at'] = $data['archived_at'] ?? null;
-        $this->container['properties_with_history'] = $data['properties_with_history'] ?? null;
-        $this->container['id'] = $data['id'] ?? null;
-        $this->container['properties'] = $data['properties'] ?? null;
-        $this->container['updated_at'] = $data['updated_at'] ?? null;
+        $this->setIfExists('created_at', $data ?? [], null);
+        $this->setIfExists('archived', $data ?? [], null);
+        $this->setIfExists('archived_at', $data ?? [], null);
+        $this->setIfExists('properties_with_history', $data ?? [], null);
+        $this->setIfExists('id', $data ?? [], null);
+        $this->setIfExists('properties', $data ?? [], null);
+        $this->setIfExists('updated_at', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -270,6 +362,9 @@ public function getCreatedAt()
      */
     public function setCreatedAt($created_at)
     {
+        if (is_null($created_at)) {
+            throw new \InvalidArgumentException('non-nullable created_at cannot be null');
+        }
         $this->container['created_at'] = $created_at;
 
         return $this;
@@ -294,6 +389,9 @@ public function getArchived()
      */
     public function setArchived($archived)
     {
+        if (is_null($archived)) {
+            throw new \InvalidArgumentException('non-nullable archived cannot be null');
+        }
         $this->container['archived'] = $archived;
 
         return $this;
@@ -318,6 +416,9 @@ public function getArchivedAt()
      */
     public function setArchivedAt($archived_at)
     {
+        if (is_null($archived_at)) {
+            throw new \InvalidArgumentException('non-nullable archived_at cannot be null');
+        }
         $this->container['archived_at'] = $archived_at;
 
         return $this;
@@ -342,6 +443,9 @@ public function getPropertiesWithHistory()
      */
     public function setPropertiesWithHistory($properties_with_history)
     {
+        if (is_null($properties_with_history)) {
+            throw new \InvalidArgumentException('non-nullable properties_with_history cannot be null');
+        }
         $this->container['properties_with_history'] = $properties_with_history;
 
         return $this;
@@ -366,6 +470,9 @@ public function getId()
      */
     public function setId($id)
     {
+        if (is_null($id)) {
+            throw new \InvalidArgumentException('non-nullable id cannot be null');
+        }
         $this->container['id'] = $id;
 
         return $this;
@@ -390,6 +497,9 @@ public function getProperties()
      */
     public function setProperties($properties)
     {
+        if (is_null($properties)) {
+            throw new \InvalidArgumentException('non-nullable properties cannot be null');
+        }
         $this->container['properties'] = $properties;
 
         return $this;
@@ -414,6 +524,9 @@ public function getUpdatedAt()
      */
     public function setUpdatedAt($updated_at)
     {
+        if (is_null($updated_at)) {
+            throw new \InvalidArgumentException('non-nullable updated_at cannot be null');
+        }
         $this->container['updated_at'] = $updated_at;
 
         return $this;
diff --git a/codegen/Crm/Objects/Tasks/Model/SimplePublicObjectBatchInput.php b/codegen/Crm/Objects/Tasks/Model/SimplePublicObjectBatchInput.php
index 1767098f..1ff14bb8 100644
--- a/codegen/Crm/Objects/Tasks/Model/SimplePublicObjectBatchInput.php
+++ b/codegen/Crm/Objects/Tasks/Model/SimplePublicObjectBatchInput.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -75,6 +75,24 @@ class SimplePublicObjectBatchInput implements ModelInterface, ArrayAccess, \Json
         'properties' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'id_property' => false,
+        'id' => false,
+        'properties' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -95,6 +113,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -186,9 +256,27 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['id_property'] = $data['id_property'] ?? null;
-        $this->container['id'] = $data['id'] ?? null;
-        $this->container['properties'] = $data['properties'] ?? null;
+        $this->setIfExists('id_property', $data ?? [], null);
+        $this->setIfExists('id', $data ?? [], null);
+        $this->setIfExists('properties', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -240,6 +328,9 @@ public function getIdProperty()
      */
     public function setIdProperty($id_property)
     {
+        if (is_null($id_property)) {
+            throw new \InvalidArgumentException('non-nullable id_property cannot be null');
+        }
         $this->container['id_property'] = $id_property;
 
         return $this;
@@ -264,6 +355,9 @@ public function getId()
      */
     public function setId($id)
     {
+        if (is_null($id)) {
+            throw new \InvalidArgumentException('non-nullable id cannot be null');
+        }
         $this->container['id'] = $id;
 
         return $this;
@@ -288,6 +382,9 @@ public function getProperties()
      */
     public function setProperties($properties)
     {
+        if (is_null($properties)) {
+            throw new \InvalidArgumentException('non-nullable properties cannot be null');
+        }
         $this->container['properties'] = $properties;
 
         return $this;
diff --git a/codegen/Crm/Objects/Tasks/Model/SimplePublicObjectId.php b/codegen/Crm/Objects/Tasks/Model/SimplePublicObjectId.php
index 432afc08..16fcf0ef 100644
--- a/codegen/Crm/Objects/Tasks/Model/SimplePublicObjectId.php
+++ b/codegen/Crm/Objects/Tasks/Model/SimplePublicObjectId.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -71,6 +71,22 @@ class SimplePublicObjectId implements ModelInterface, ArrayAccess, \JsonSerializ
         'id' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'id' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -91,6 +107,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -176,7 +244,25 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['id'] = $data['id'] ?? null;
+        $this->setIfExists('id', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -225,6 +311,9 @@ public function getId()
      */
     public function setId($id)
     {
+        if (is_null($id)) {
+            throw new \InvalidArgumentException('non-nullable id cannot be null');
+        }
         $this->container['id'] = $id;
 
         return $this;
diff --git a/codegen/Crm/Objects/Tasks/Model/SimplePublicObjectInput.php b/codegen/Crm/Objects/Tasks/Model/SimplePublicObjectInput.php
index afc7e12a..7b77083d 100644
--- a/codegen/Crm/Objects/Tasks/Model/SimplePublicObjectInput.php
+++ b/codegen/Crm/Objects/Tasks/Model/SimplePublicObjectInput.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -71,6 +71,22 @@ class SimplePublicObjectInput implements ModelInterface, ArrayAccess, \JsonSeria
         'properties' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'properties' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -91,6 +107,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -176,7 +244,25 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['properties'] = $data['properties'] ?? null;
+        $this->setIfExists('properties', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -225,6 +311,9 @@ public function getProperties()
      */
     public function setProperties($properties)
     {
+        if (is_null($properties)) {
+            throw new \InvalidArgumentException('non-nullable properties cannot be null');
+        }
         $this->container['properties'] = $properties;
 
         return $this;
diff --git a/codegen/Crm/Objects/Tasks/Model/SimplePublicObjectInputForCreate.php b/codegen/Crm/Objects/Tasks/Model/SimplePublicObjectInputForCreate.php
index e175bb97..108d15b3 100644
--- a/codegen/Crm/Objects/Tasks/Model/SimplePublicObjectInputForCreate.php
+++ b/codegen/Crm/Objects/Tasks/Model/SimplePublicObjectInputForCreate.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -73,6 +73,23 @@ class SimplePublicObjectInputForCreate implements ModelInterface, ArrayAccess, \
         'properties' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'associations' => false,
+        'properties' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -93,6 +110,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -181,8 +250,26 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['associations'] = $data['associations'] ?? null;
-        $this->container['properties'] = $data['properties'] ?? null;
+        $this->setIfExists('associations', $data ?? [], null);
+        $this->setIfExists('properties', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -234,6 +321,9 @@ public function getAssociations()
      */
     public function setAssociations($associations)
     {
+        if (is_null($associations)) {
+            throw new \InvalidArgumentException('non-nullable associations cannot be null');
+        }
         $this->container['associations'] = $associations;
 
         return $this;
@@ -258,6 +348,9 @@ public function getProperties()
      */
     public function setProperties($properties)
     {
+        if (is_null($properties)) {
+            throw new \InvalidArgumentException('non-nullable properties cannot be null');
+        }
         $this->container['properties'] = $properties;
 
         return $this;
diff --git a/codegen/Crm/Objects/Tasks/Model/SimplePublicObjectWithAssociations.php b/codegen/Crm/Objects/Tasks/Model/SimplePublicObjectWithAssociations.php
index 743541d2..473acc6a 100644
--- a/codegen/Crm/Objects/Tasks/Model/SimplePublicObjectWithAssociations.php
+++ b/codegen/Crm/Objects/Tasks/Model/SimplePublicObjectWithAssociations.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -85,6 +85,29 @@ class SimplePublicObjectWithAssociations implements ModelInterface, ArrayAccess,
         'updated_at' => 'date-time'
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'associations' => false,
+        'created_at' => false,
+        'archived' => false,
+        'archived_at' => false,
+        'properties_with_history' => false,
+        'id' => false,
+        'properties' => false,
+        'updated_at' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -105,6 +128,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -211,14 +286,32 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['associations'] = $data['associations'] ?? null;
-        $this->container['created_at'] = $data['created_at'] ?? null;
-        $this->container['archived'] = $data['archived'] ?? null;
-        $this->container['archived_at'] = $data['archived_at'] ?? null;
-        $this->container['properties_with_history'] = $data['properties_with_history'] ?? null;
-        $this->container['id'] = $data['id'] ?? null;
-        $this->container['properties'] = $data['properties'] ?? null;
-        $this->container['updated_at'] = $data['updated_at'] ?? null;
+        $this->setIfExists('associations', $data ?? [], null);
+        $this->setIfExists('created_at', $data ?? [], null);
+        $this->setIfExists('archived', $data ?? [], null);
+        $this->setIfExists('archived_at', $data ?? [], null);
+        $this->setIfExists('properties_with_history', $data ?? [], null);
+        $this->setIfExists('id', $data ?? [], null);
+        $this->setIfExists('properties', $data ?? [], null);
+        $this->setIfExists('updated_at', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -276,6 +369,9 @@ public function getAssociations()
      */
     public function setAssociations($associations)
     {
+        if (is_null($associations)) {
+            throw new \InvalidArgumentException('non-nullable associations cannot be null');
+        }
         $this->container['associations'] = $associations;
 
         return $this;
@@ -300,6 +396,9 @@ public function getCreatedAt()
      */
     public function setCreatedAt($created_at)
     {
+        if (is_null($created_at)) {
+            throw new \InvalidArgumentException('non-nullable created_at cannot be null');
+        }
         $this->container['created_at'] = $created_at;
 
         return $this;
@@ -324,6 +423,9 @@ public function getArchived()
      */
     public function setArchived($archived)
     {
+        if (is_null($archived)) {
+            throw new \InvalidArgumentException('non-nullable archived cannot be null');
+        }
         $this->container['archived'] = $archived;
 
         return $this;
@@ -348,6 +450,9 @@ public function getArchivedAt()
      */
     public function setArchivedAt($archived_at)
     {
+        if (is_null($archived_at)) {
+            throw new \InvalidArgumentException('non-nullable archived_at cannot be null');
+        }
         $this->container['archived_at'] = $archived_at;
 
         return $this;
@@ -372,6 +477,9 @@ public function getPropertiesWithHistory()
      */
     public function setPropertiesWithHistory($properties_with_history)
     {
+        if (is_null($properties_with_history)) {
+            throw new \InvalidArgumentException('non-nullable properties_with_history cannot be null');
+        }
         $this->container['properties_with_history'] = $properties_with_history;
 
         return $this;
@@ -396,6 +504,9 @@ public function getId()
      */
     public function setId($id)
     {
+        if (is_null($id)) {
+            throw new \InvalidArgumentException('non-nullable id cannot be null');
+        }
         $this->container['id'] = $id;
 
         return $this;
@@ -420,6 +531,9 @@ public function getProperties()
      */
     public function setProperties($properties)
     {
+        if (is_null($properties)) {
+            throw new \InvalidArgumentException('non-nullable properties cannot be null');
+        }
         $this->container['properties'] = $properties;
 
         return $this;
@@ -444,6 +558,9 @@ public function getUpdatedAt()
      */
     public function setUpdatedAt($updated_at)
     {
+        if (is_null($updated_at)) {
+            throw new \InvalidArgumentException('non-nullable updated_at cannot be null');
+        }
         $this->container['updated_at'] = $updated_at;
 
         return $this;
diff --git a/codegen/Crm/Objects/Tasks/Model/StandardError.php b/codegen/Crm/Objects/Tasks/Model/StandardError.php
index 85e07092..4d5400f6 100644
--- a/codegen/Crm/Objects/Tasks/Model/StandardError.php
+++ b/codegen/Crm/Objects/Tasks/Model/StandardError.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -85,6 +85,29 @@ class StandardError implements ModelInterface, ArrayAccess, \JsonSerializable
         'status' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'sub_category' => false,
+        'context' => false,
+        'links' => false,
+        'id' => false,
+        'category' => false,
+        'message' => false,
+        'errors' => false,
+        'status' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -105,6 +128,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -211,14 +286,32 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['sub_category'] = $data['sub_category'] ?? null;
-        $this->container['context'] = $data['context'] ?? null;
-        $this->container['links'] = $data['links'] ?? null;
-        $this->container['id'] = $data['id'] ?? null;
-        $this->container['category'] = $data['category'] ?? null;
-        $this->container['message'] = $data['message'] ?? null;
-        $this->container['errors'] = $data['errors'] ?? null;
-        $this->container['status'] = $data['status'] ?? null;
+        $this->setIfExists('sub_category', $data ?? [], null);
+        $this->setIfExists('context', $data ?? [], null);
+        $this->setIfExists('links', $data ?? [], null);
+        $this->setIfExists('id', $data ?? [], null);
+        $this->setIfExists('category', $data ?? [], null);
+        $this->setIfExists('message', $data ?? [], null);
+        $this->setIfExists('errors', $data ?? [], null);
+        $this->setIfExists('status', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -282,6 +375,9 @@ public function getSubCategory()
      */
     public function setSubCategory($sub_category)
     {
+        if (is_null($sub_category)) {
+            throw new \InvalidArgumentException('non-nullable sub_category cannot be null');
+        }
         $this->container['sub_category'] = $sub_category;
 
         return $this;
@@ -306,6 +402,9 @@ public function getContext()
      */
     public function setContext($context)
     {
+        if (is_null($context)) {
+            throw new \InvalidArgumentException('non-nullable context cannot be null');
+        }
         $this->container['context'] = $context;
 
         return $this;
@@ -330,6 +429,9 @@ public function getLinks()
      */
     public function setLinks($links)
     {
+        if (is_null($links)) {
+            throw new \InvalidArgumentException('non-nullable links cannot be null');
+        }
         $this->container['links'] = $links;
 
         return $this;
@@ -354,6 +456,9 @@ public function getId()
      */
     public function setId($id)
     {
+        if (is_null($id)) {
+            throw new \InvalidArgumentException('non-nullable id cannot be null');
+        }
         $this->container['id'] = $id;
 
         return $this;
@@ -378,6 +483,9 @@ public function getCategory()
      */
     public function setCategory($category)
     {
+        if (is_null($category)) {
+            throw new \InvalidArgumentException('non-nullable category cannot be null');
+        }
         $this->container['category'] = $category;
 
         return $this;
@@ -402,6 +510,9 @@ public function getMessage()
      */
     public function setMessage($message)
     {
+        if (is_null($message)) {
+            throw new \InvalidArgumentException('non-nullable message cannot be null');
+        }
         $this->container['message'] = $message;
 
         return $this;
@@ -426,6 +537,9 @@ public function getErrors()
      */
     public function setErrors($errors)
     {
+        if (is_null($errors)) {
+            throw new \InvalidArgumentException('non-nullable errors cannot be null');
+        }
         $this->container['errors'] = $errors;
 
         return $this;
@@ -450,6 +564,9 @@ public function getStatus()
      */
     public function setStatus($status)
     {
+        if (is_null($status)) {
+            throw new \InvalidArgumentException('non-nullable status cannot be null');
+        }
         $this->container['status'] = $status;
 
         return $this;
diff --git a/codegen/Crm/Objects/Tasks/Model/ValueWithTimestamp.php b/codegen/Crm/Objects/Tasks/Model/ValueWithTimestamp.php
index 542f191c..8c78da7f 100644
--- a/codegen/Crm/Objects/Tasks/Model/ValueWithTimestamp.php
+++ b/codegen/Crm/Objects/Tasks/Model/ValueWithTimestamp.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -81,6 +81,27 @@ class ValueWithTimestamp implements ModelInterface, ArrayAccess, \JsonSerializab
         'timestamp' => 'date-time'
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'source_id' => false,
+        'source_type' => false,
+        'source_label' => false,
+        'updated_by_user_id' => false,
+        'value' => false,
+        'timestamp' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -101,6 +122,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -201,12 +274,30 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['source_id'] = $data['source_id'] ?? null;
-        $this->container['source_type'] = $data['source_type'] ?? null;
-        $this->container['source_label'] = $data['source_label'] ?? null;
-        $this->container['updated_by_user_id'] = $data['updated_by_user_id'] ?? null;
-        $this->container['value'] = $data['value'] ?? null;
-        $this->container['timestamp'] = $data['timestamp'] ?? null;
+        $this->setIfExists('source_id', $data ?? [], null);
+        $this->setIfExists('source_type', $data ?? [], null);
+        $this->setIfExists('source_label', $data ?? [], null);
+        $this->setIfExists('updated_by_user_id', $data ?? [], null);
+        $this->setIfExists('value', $data ?? [], null);
+        $this->setIfExists('timestamp', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -261,6 +352,9 @@ public function getSourceId()
      */
     public function setSourceId($source_id)
     {
+        if (is_null($source_id)) {
+            throw new \InvalidArgumentException('non-nullable source_id cannot be null');
+        }
         $this->container['source_id'] = $source_id;
 
         return $this;
@@ -285,6 +379,9 @@ public function getSourceType()
      */
     public function setSourceType($source_type)
     {
+        if (is_null($source_type)) {
+            throw new \InvalidArgumentException('non-nullable source_type cannot be null');
+        }
         $this->container['source_type'] = $source_type;
 
         return $this;
@@ -309,6 +406,9 @@ public function getSourceLabel()
      */
     public function setSourceLabel($source_label)
     {
+        if (is_null($source_label)) {
+            throw new \InvalidArgumentException('non-nullable source_label cannot be null');
+        }
         $this->container['source_label'] = $source_label;
 
         return $this;
@@ -333,6 +433,9 @@ public function getUpdatedByUserId()
      */
     public function setUpdatedByUserId($updated_by_user_id)
     {
+        if (is_null($updated_by_user_id)) {
+            throw new \InvalidArgumentException('non-nullable updated_by_user_id cannot be null');
+        }
         $this->container['updated_by_user_id'] = $updated_by_user_id;
 
         return $this;
@@ -357,6 +460,9 @@ public function getValue()
      */
     public function setValue($value)
     {
+        if (is_null($value)) {
+            throw new \InvalidArgumentException('non-nullable value cannot be null');
+        }
         $this->container['value'] = $value;
 
         return $this;
@@ -381,6 +487,9 @@ public function getTimestamp()
      */
     public function setTimestamp($timestamp)
     {
+        if (is_null($timestamp)) {
+            throw new \InvalidArgumentException('non-nullable timestamp cannot be null');
+        }
         $this->container['timestamp'] = $timestamp;
 
         return $this;
diff --git a/codegen/Crm/Objects/Tasks/ObjectSerializer.php b/codegen/Crm/Objects/Tasks/ObjectSerializer.php
index d0832767..a0abc13f 100644
--- a/codegen/Crm/Objects/Tasks/ObjectSerializer.php
+++ b/codegen/Crm/Objects/Tasks/ObjectSerializer.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -87,7 +87,7 @@ public static function sanitizeForSerialization($data, $type = null, $format = n
                 foreach ($data::openAPITypes() as $property => $openAPIType) {
                     $getter = $data::getters()[$property];
                     $value = $data->$getter();
-                    if ($value !== null && !in_array($openAPIType, ['\DateTime', '\SplFileObject', 'array', 'bool', 'boolean', 'byte', 'double', 'float', 'int', 'integer', 'mixed', 'number', 'object', 'string', 'void'], true)) {
+                    if ($value !== null && !in_array($openAPIType, ['\DateTime', '\SplFileObject', 'array', 'bool', 'boolean', 'byte', 'float', 'int', 'integer', 'mixed', 'number', 'object', 'string', 'void'], true)) {
                         $callable = [$openAPIType, 'getAllowableEnumValues'];
                         if (is_callable($callable)) {
                             /** array $callable */
@@ -98,7 +98,7 @@ public static function sanitizeForSerialization($data, $type = null, $format = n
                             }
                         }
                     }
-                    if ($value !== null) {
+                    if (($data::isNullable($property) && $data->isNullableSetToNull($property)) || $value !== null) {
                         $values[$data::attributeMap()[$property]] = self::sanitizeForSerialization($value, $openAPIType, $formats[$property]);
                     }
                 }
@@ -157,6 +157,49 @@ public static function toPathValue($value)
         return rawurlencode(self::toString($value));
     }
 
+    /**
+     * Checks if a value is empty, based on its OpenAPI type.
+     *
+     * @param mixed  $value
+     * @param string $openApiType
+     *
+     * @return bool true if $value is empty
+     */
+    private static function isEmptyValue($value, string $openApiType): bool
+    {
+        # If empty() returns false, it is not empty regardless of its type.
+        if (!empty($value)) {
+            return false;
+        }
+
+        # Null is always empty, as we cannot send a real "null" value in a query parameter.
+        if ($value === null) {
+            return true;
+        }
+
+        switch ($openApiType) {
+            # For numeric values, false and '' are considered empty.
+            # This comparison is safe for floating point values, since the previous call to empty() will
+            # filter out values that don't match 0.
+            case 'int':
+            case 'integer':
+                return $value !== 0;
+
+            case 'number':
+            case 'float':
+                return $value !== 0 && $value !== 0.0;
+
+            # For boolean values, '' is considered empty
+            case 'bool':
+            case 'boolean':
+                return !in_array($value, [false, 0], true);
+
+            # For all the other types, any value at this point can be considered empty.
+            default:
+                return true;
+        }
+    }
+
     /**
      * Take query parameter properties and turn it into an array suitable for
      * native http_build_query or GuzzleHttp\Psr7\Query::build.
@@ -178,10 +221,12 @@ public static function toQueryValue(
         bool $explode = true,
         bool $required = true
     ): array {
-        if (
-            empty($value)
-            && ($value !== false || $openApiType !== 'boolean') // if $value === false and $openApiType ==='boolean' it isn't empty
-        ) {
+
+        # Check if we should omit this parameter from the query. This should only happen when:
+        #  - Parameter is NOT required; AND
+        #  - its value is set to a value that is equivalent to "empty", depending on its OpenAPI type. For
+        #    example, 0 as "int" or "boolean" is NOT an empty value.
+        if (self::isEmptyValue($value, $openApiType)) {
             if ($required) {
                 return ["{$paramName}" => ''];
             } else {
@@ -189,6 +234,11 @@ public static function toQueryValue(
             }
         }
 
+        # Handle DateTime objects in query
+        if($openApiType === "\\DateTime" && $value instanceof \DateTime) {
+            return ["{$paramName}" => $value->format(self::$dateTimeFormat)];
+        }
+
         $query = [];
         $value = (in_array($openApiType, ['object', 'array'], true)) ? (array)$value : $value;
 
@@ -395,7 +445,7 @@ public static function deserialize($data, $class, $httpHeaders = null)
         }
 
         if ($class === '\DateTime') {
-            // Some API's return an invalid, empty string as a
+            // Some APIs return an invalid, empty string as a
             // date-time property. DateTime::__construct() will return
             // the current time for empty input which is probably not
             // what is meant. The invalid empty string is probably to
@@ -405,7 +455,7 @@ public static function deserialize($data, $class, $httpHeaders = null)
                 try {
                     return new \DateTime($data);
                 } catch (\Exception $exception) {
-                    // Some API's return a date-time with too high nanosecond
+                    // Some APIs return a date-time with too high nanosecond
                     // precision for php's DateTime to handle.
                     // With provided regexp 6 digits of microseconds saved
                     return new \DateTime(self::sanitizeTimestamp($data));
@@ -441,7 +491,7 @@ public static function deserialize($data, $class, $httpHeaders = null)
         }
 
         /** @psalm-suppress ParadoxicalCondition */
-        if (in_array($class, ['\DateTime', '\SplFileObject', 'array', 'bool', 'boolean', 'byte', 'double', 'float', 'int', 'integer', 'mixed', 'number', 'object', 'string', 'void'], true)) {
+        if (in_array($class, ['\DateTime', '\SplFileObject', 'array', 'bool', 'boolean', 'byte', 'float', 'int', 'integer', 'mixed', 'number', 'object', 'string', 'void'], true)) {
             settype($data, $class);
             return $data;
         }
@@ -455,6 +505,11 @@ public static function deserialize($data, $class, $httpHeaders = null)
             return $data;
         } else {
             $data = is_string($data) ? json_decode($data) : $data;
+
+            if (is_array($data)) {
+                $data = (object)$data;
+            }
+
             // If a discriminator is defined and points to a valid subclass, use it.
             $discriminator = $class::DISCRIMINATOR;
             if (!empty($discriminator) && isset($data->{$discriminator}) && is_string($data->{$discriminator})) {
@@ -469,7 +524,15 @@ public static function deserialize($data, $class, $httpHeaders = null)
             foreach ($instance::openAPITypes() as $property => $type) {
                 $propertySetter = $instance::setters()[$property];
 
-                if (!isset($propertySetter) || !isset($data->{$instance::attributeMap()[$property]})) {
+                if (!isset($propertySetter)) {
+                    continue;
+                }
+
+                if (!isset($data->{$instance::attributeMap()[$property]})) {
+                    if ($instance::isNullable($property)) {
+                        $instance->$propertySetter(null);
+                    }
+
                     continue;
                 }
 
diff --git a/codegen/Crm/Objects/Taxes/Api/BasicApi.php b/codegen/Crm/Objects/Taxes/Api/BasicApi.php
index 0b0e4585..80f2749c 100644
--- a/codegen/Crm/Objects/Taxes/Api/BasicApi.php
+++ b/codegen/Crm/Objects/Taxes/Api/BasicApi.php
@@ -16,7 +16,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -69,6 +69,25 @@ class BasicApi
      */
     protected $hostIndex;
 
+    /** @var string[] $contentTypes **/
+    public const contentTypes = [
+        'archive' => [
+            'application/json',
+        ],
+        'create' => [
+            'application/json',
+        ],
+        'getById' => [
+            'application/json',
+        ],
+        'getPage' => [
+            'application/json',
+        ],
+        'update' => [
+            'application/json',
+        ],
+    ];
+
     /**
      * @param ClientInterface $client
      * @param Configuration   $config
@@ -121,14 +140,15 @@ public function getConfig()
      * Archive
      *
      * @param  string $tax_id tax_id (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['archive'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Taxes\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Taxes\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return void
      */
-    public function archive($tax_id)
+    public function archive($tax_id, string $contentType = self::contentTypes['archive'][0])
     {
-        $this->archiveWithHttpInfo($tax_id);
+        $this->archiveWithHttpInfo($tax_id, $contentType);
     }
 
     /**
@@ -137,14 +157,15 @@ public function archive($tax_id)
      * Archive
      *
      * @param  string $tax_id (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['archive'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Taxes\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Taxes\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return array of null, HTTP status code, HTTP response headers (array of strings)
      */
-    public function archiveWithHttpInfo($tax_id)
+    public function archiveWithHttpInfo($tax_id, string $contentType = self::contentTypes['archive'][0])
     {
-        $request = $this->archiveRequest($tax_id);
+        $request = $this->archiveRequest($tax_id, $contentType);
 
         try {
             $options = $this->createHttpClientOption();
@@ -204,13 +225,14 @@ public function archiveWithHttpInfo($tax_id)
      * Archive
      *
      * @param  string $tax_id (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['archive'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function archiveAsync($tax_id)
+    public function archiveAsync($tax_id, string $contentType = self::contentTypes['archive'][0])
     {
-        return $this->archiveAsyncWithHttpInfo($tax_id)
+        return $this->archiveAsyncWithHttpInfo($tax_id, $contentType)
             ->then(
                 function ($response) {
                     return $response[0];
@@ -224,14 +246,15 @@ function ($response) {
      * Archive
      *
      * @param  string $tax_id (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['archive'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function archiveAsyncWithHttpInfo($tax_id)
+    public function archiveAsyncWithHttpInfo($tax_id, string $contentType = self::contentTypes['archive'][0])
     {
         $returnType = '';
-        $request = $this->archiveRequest($tax_id);
+        $request = $this->archiveRequest($tax_id, $contentType);
 
         return $this->client
             ->sendAsync($request, $this->createHttpClientOption())
@@ -260,12 +283,14 @@ function ($exception) {
      * Create request for operation 'archive'
      *
      * @param  string $tax_id (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['archive'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Psr7\Request
      */
-    public function archiveRequest($tax_id)
+    public function archiveRequest($tax_id, string $contentType = self::contentTypes['archive'][0])
     {
+
         // verify the required parameter 'tax_id' is set
         if ($tax_id === null || (is_array($tax_id) && count($tax_id) === 0)) {
             throw new \InvalidArgumentException(
@@ -273,6 +298,7 @@ public function archiveRequest($tax_id)
             );
         }
 
+
         $resourcePath = '/crm/v3/objects/taxes/{taxId}';
         $formParams = [];
         $queryParams = [];
@@ -292,16 +318,11 @@ public function archiveRequest($tax_id)
         }
 
 
-        if ($multipart) {
-            $headers = $this->headerSelector->selectHeadersForMultipart(
-                ['*/*']
-            );
-        } else {
-            $headers = $this->headerSelector->selectHeaders(
-                ['*/*'],
-                []
-            );
-        }
+        $headers = $this->headerSelector->selectHeaders(
+            ['*/*', ],
+            $contentType,
+            $multipart
+        );
 
         // for model (json/xml)
         if (count($formParams) > 0) {
@@ -319,9 +340,9 @@ public function archiveRequest($tax_id)
                 // for HTTP post (form)
                 $httpBody = new MultipartStream($multipartContents);
 
-            } elseif ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode($formParams);
-
+            } elseif (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the form parameters
+                $httpBody = \GuzzleHttp\Utils::jsonEncode($formParams);
             } else {
                 // for HTTP post (form)
                 $httpBody = ObjectSerializer::buildQuery($formParams);
@@ -344,10 +365,11 @@ public function archiveRequest($tax_id)
             $headers
         );
 
+        $operationHost = $this->config->getHost();
         $query = ObjectSerializer::buildQuery($queryParams);
         return new Request(
             'DELETE',
-            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
+            $operationHost . $resourcePath . ($query ? "?{$query}" : ''),
             $headers,
             $httpBody
         );
@@ -359,14 +381,15 @@ public function archiveRequest($tax_id)
      * Create
      *
      * @param  \HubSpot\Client\Crm\Objects\Taxes\Model\SimplePublicObjectInputForCreate $simple_public_object_input_for_create simple_public_object_input_for_create (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['create'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Taxes\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Taxes\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return \HubSpot\Client\Crm\Objects\Taxes\Model\SimplePublicObject|\HubSpot\Client\Crm\Objects\Taxes\Model\Error
      */
-    public function create($simple_public_object_input_for_create)
+    public function create($simple_public_object_input_for_create, string $contentType = self::contentTypes['create'][0])
     {
-        list($response) = $this->createWithHttpInfo($simple_public_object_input_for_create);
+        list($response) = $this->createWithHttpInfo($simple_public_object_input_for_create, $contentType);
         return $response;
     }
 
@@ -376,14 +399,15 @@ public function create($simple_public_object_input_for_create)
      * Create
      *
      * @param  \HubSpot\Client\Crm\Objects\Taxes\Model\SimplePublicObjectInputForCreate $simple_public_object_input_for_create (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['create'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Taxes\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Taxes\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return array of \HubSpot\Client\Crm\Objects\Taxes\Model\SimplePublicObject|\HubSpot\Client\Crm\Objects\Taxes\Model\Error, HTTP status code, HTTP response headers (array of strings)
      */
-    public function createWithHttpInfo($simple_public_object_input_for_create)
+    public function createWithHttpInfo($simple_public_object_input_for_create, string $contentType = self::contentTypes['create'][0])
     {
-        $request = $this->createRequest($simple_public_object_input_for_create);
+        $request = $this->createRequest($simple_public_object_input_for_create, $contentType);
 
         try {
             $options = $this->createHttpClientOption();
@@ -427,7 +451,19 @@ public function createWithHttpInfo($simple_public_object_input_for_create)
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Taxes\Model\SimplePublicObject' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -442,7 +478,19 @@ public function createWithHttpInfo($simple_public_object_input_for_create)
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Taxes\Model\Error' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -459,7 +507,19 @@ public function createWithHttpInfo($simple_public_object_input_for_create)
             } else {
                 $content = (string) $response->getBody();
                 if ($returnType !== 'string') {
-                    $content = json_decode($content);
+                    try {
+                        $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                    } catch (\JsonException $exception) {
+                        throw new ApiException(
+                            sprintf(
+                                'Error JSON decoding server response (%s)',
+                                $request->getUri()
+                            ),
+                            $statusCode,
+                            $response->getHeaders(),
+                            $content
+                        );
+                    }
                 }
             }
 
@@ -498,13 +558,14 @@ public function createWithHttpInfo($simple_public_object_input_for_create)
      * Create
      *
      * @param  \HubSpot\Client\Crm\Objects\Taxes\Model\SimplePublicObjectInputForCreate $simple_public_object_input_for_create (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['create'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function createAsync($simple_public_object_input_for_create)
+    public function createAsync($simple_public_object_input_for_create, string $contentType = self::contentTypes['create'][0])
     {
-        return $this->createAsyncWithHttpInfo($simple_public_object_input_for_create)
+        return $this->createAsyncWithHttpInfo($simple_public_object_input_for_create, $contentType)
             ->then(
                 function ($response) {
                     return $response[0];
@@ -518,14 +579,15 @@ function ($response) {
      * Create
      *
      * @param  \HubSpot\Client\Crm\Objects\Taxes\Model\SimplePublicObjectInputForCreate $simple_public_object_input_for_create (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['create'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function createAsyncWithHttpInfo($simple_public_object_input_for_create)
+    public function createAsyncWithHttpInfo($simple_public_object_input_for_create, string $contentType = self::contentTypes['create'][0])
     {
         $returnType = '\HubSpot\Client\Crm\Objects\Taxes\Model\SimplePublicObject';
-        $request = $this->createRequest($simple_public_object_input_for_create);
+        $request = $this->createRequest($simple_public_object_input_for_create, $contentType);
 
         return $this->client
             ->sendAsync($request, $this->createHttpClientOption())
@@ -567,12 +629,14 @@ function ($exception) {
      * Create request for operation 'create'
      *
      * @param  \HubSpot\Client\Crm\Objects\Taxes\Model\SimplePublicObjectInputForCreate $simple_public_object_input_for_create (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['create'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Psr7\Request
      */
-    public function createRequest($simple_public_object_input_for_create)
+    public function createRequest($simple_public_object_input_for_create, string $contentType = self::contentTypes['create'][0])
     {
+
         // verify the required parameter 'simple_public_object_input_for_create' is set
         if ($simple_public_object_input_for_create === null || (is_array($simple_public_object_input_for_create) && count($simple_public_object_input_for_create) === 0)) {
             throw new \InvalidArgumentException(
@@ -580,6 +644,7 @@ public function createRequest($simple_public_object_input_for_create)
             );
         }
 
+
         $resourcePath = '/crm/v3/objects/taxes';
         $formParams = [];
         $queryParams = [];
@@ -591,21 +656,17 @@ public function createRequest($simple_public_object_input_for_create)
 
 
 
-        if ($multipart) {
-            $headers = $this->headerSelector->selectHeadersForMultipart(
-                ['application/json', '*/*']
-            );
-        } else {
-            $headers = $this->headerSelector->selectHeaders(
-                ['application/json', '*/*'],
-                ['application/json']
-            );
-        }
+        $headers = $this->headerSelector->selectHeaders(
+            ['application/json', '*/*', ],
+            $contentType,
+            $multipart
+        );
 
         // for model (json/xml)
         if (isset($simple_public_object_input_for_create)) {
-            if ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode(ObjectSerializer::sanitizeForSerialization($simple_public_object_input_for_create));
+            if (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the body
+                $httpBody = \GuzzleHttp\Utils::jsonEncode(ObjectSerializer::sanitizeForSerialization($simple_public_object_input_for_create));
             } else {
                 $httpBody = $simple_public_object_input_for_create;
             }
@@ -624,9 +685,9 @@ public function createRequest($simple_public_object_input_for_create)
                 // for HTTP post (form)
                 $httpBody = new MultipartStream($multipartContents);
 
-            } elseif ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode($formParams);
-
+            } elseif (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the form parameters
+                $httpBody = \GuzzleHttp\Utils::jsonEncode($formParams);
             } else {
                 // for HTTP post (form)
                 $httpBody = ObjectSerializer::buildQuery($formParams);
@@ -649,10 +710,11 @@ public function createRequest($simple_public_object_input_for_create)
             $headers
         );
 
+        $operationHost = $this->config->getHost();
         $query = ObjectSerializer::buildQuery($queryParams);
         return new Request(
             'POST',
-            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
+            $operationHost . $resourcePath . ($query ? "?{$query}" : ''),
             $headers,
             $httpBody
         );
@@ -669,14 +731,15 @@ public function createRequest($simple_public_object_input_for_create)
      * @param  string[] $associations A comma separated list of object types to retrieve associated IDs for. If any of the specified associations do not exist, they will be ignored. (optional)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
      * @param  string $id_property The name of a property whose values are unique for this object type (optional)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['getById'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Taxes\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Taxes\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return \HubSpot\Client\Crm\Objects\Taxes\Model\SimplePublicObjectWithAssociations|\HubSpot\Client\Crm\Objects\Taxes\Model\Error
      */
-    public function getById($tax_id, $properties = null, $properties_with_history = null, $associations = null, $archived = false, $id_property = null)
+    public function getById($tax_id, $properties = null, $properties_with_history = null, $associations = null, $archived = false, $id_property = null, string $contentType = self::contentTypes['getById'][0])
     {
-        list($response) = $this->getByIdWithHttpInfo($tax_id, $properties, $properties_with_history, $associations, $archived, $id_property);
+        list($response) = $this->getByIdWithHttpInfo($tax_id, $properties, $properties_with_history, $associations, $archived, $id_property, $contentType);
         return $response;
     }
 
@@ -691,14 +754,15 @@ public function getById($tax_id, $properties = null, $properties_with_history =
      * @param  string[] $associations A comma separated list of object types to retrieve associated IDs for. If any of the specified associations do not exist, they will be ignored. (optional)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
      * @param  string $id_property The name of a property whose values are unique for this object type (optional)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['getById'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Taxes\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Taxes\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return array of \HubSpot\Client\Crm\Objects\Taxes\Model\SimplePublicObjectWithAssociations|\HubSpot\Client\Crm\Objects\Taxes\Model\Error, HTTP status code, HTTP response headers (array of strings)
      */
-    public function getByIdWithHttpInfo($tax_id, $properties = null, $properties_with_history = null, $associations = null, $archived = false, $id_property = null)
+    public function getByIdWithHttpInfo($tax_id, $properties = null, $properties_with_history = null, $associations = null, $archived = false, $id_property = null, string $contentType = self::contentTypes['getById'][0])
     {
-        $request = $this->getByIdRequest($tax_id, $properties, $properties_with_history, $associations, $archived, $id_property);
+        $request = $this->getByIdRequest($tax_id, $properties, $properties_with_history, $associations, $archived, $id_property, $contentType);
 
         try {
             $options = $this->createHttpClientOption();
@@ -742,7 +806,19 @@ public function getByIdWithHttpInfo($tax_id, $properties = null, $properties_wit
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Taxes\Model\SimplePublicObjectWithAssociations' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -757,7 +833,19 @@ public function getByIdWithHttpInfo($tax_id, $properties = null, $properties_wit
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Taxes\Model\Error' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -774,7 +862,19 @@ public function getByIdWithHttpInfo($tax_id, $properties = null, $properties_wit
             } else {
                 $content = (string) $response->getBody();
                 if ($returnType !== 'string') {
-                    $content = json_decode($content);
+                    try {
+                        $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                    } catch (\JsonException $exception) {
+                        throw new ApiException(
+                            sprintf(
+                                'Error JSON decoding server response (%s)',
+                                $request->getUri()
+                            ),
+                            $statusCode,
+                            $response->getHeaders(),
+                            $content
+                        );
+                    }
                 }
             }
 
@@ -818,13 +918,14 @@ public function getByIdWithHttpInfo($tax_id, $properties = null, $properties_wit
      * @param  string[] $associations A comma separated list of object types to retrieve associated IDs for. If any of the specified associations do not exist, they will be ignored. (optional)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
      * @param  string $id_property The name of a property whose values are unique for this object type (optional)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['getById'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function getByIdAsync($tax_id, $properties = null, $properties_with_history = null, $associations = null, $archived = false, $id_property = null)
+    public function getByIdAsync($tax_id, $properties = null, $properties_with_history = null, $associations = null, $archived = false, $id_property = null, string $contentType = self::contentTypes['getById'][0])
     {
-        return $this->getByIdAsyncWithHttpInfo($tax_id, $properties, $properties_with_history, $associations, $archived, $id_property)
+        return $this->getByIdAsyncWithHttpInfo($tax_id, $properties, $properties_with_history, $associations, $archived, $id_property, $contentType)
             ->then(
                 function ($response) {
                     return $response[0];
@@ -843,14 +944,15 @@ function ($response) {
      * @param  string[] $associations A comma separated list of object types to retrieve associated IDs for. If any of the specified associations do not exist, they will be ignored. (optional)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
      * @param  string $id_property The name of a property whose values are unique for this object type (optional)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['getById'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function getByIdAsyncWithHttpInfo($tax_id, $properties = null, $properties_with_history = null, $associations = null, $archived = false, $id_property = null)
+    public function getByIdAsyncWithHttpInfo($tax_id, $properties = null, $properties_with_history = null, $associations = null, $archived = false, $id_property = null, string $contentType = self::contentTypes['getById'][0])
     {
         $returnType = '\HubSpot\Client\Crm\Objects\Taxes\Model\SimplePublicObjectWithAssociations';
-        $request = $this->getByIdRequest($tax_id, $properties, $properties_with_history, $associations, $archived, $id_property);
+        $request = $this->getByIdRequest($tax_id, $properties, $properties_with_history, $associations, $archived, $id_property, $contentType);
 
         return $this->client
             ->sendAsync($request, $this->createHttpClientOption())
@@ -897,12 +999,14 @@ function ($exception) {
      * @param  string[] $associations A comma separated list of object types to retrieve associated IDs for. If any of the specified associations do not exist, they will be ignored. (optional)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
      * @param  string $id_property The name of a property whose values are unique for this object type (optional)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['getById'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Psr7\Request
      */
-    public function getByIdRequest($tax_id, $properties = null, $properties_with_history = null, $associations = null, $archived = false, $id_property = null)
+    public function getByIdRequest($tax_id, $properties = null, $properties_with_history = null, $associations = null, $archived = false, $id_property = null, string $contentType = self::contentTypes['getById'][0])
     {
+
         // verify the required parameter 'tax_id' is set
         if ($tax_id === null || (is_array($tax_id) && count($tax_id) === 0)) {
             throw new \InvalidArgumentException(
@@ -910,6 +1014,12 @@ public function getByIdRequest($tax_id, $properties = null, $properties_with_his
             );
         }
 
+
+
+
+
+
+
         $resourcePath = '/crm/v3/objects/taxes/{taxId}';
         $formParams = [];
         $queryParams = [];
@@ -974,16 +1084,11 @@ public function getByIdRequest($tax_id, $properties = null, $properties_with_his
         }
 
 
-        if ($multipart) {
-            $headers = $this->headerSelector->selectHeadersForMultipart(
-                ['application/json', '*/*']
-            );
-        } else {
-            $headers = $this->headerSelector->selectHeaders(
-                ['application/json', '*/*'],
-                []
-            );
-        }
+        $headers = $this->headerSelector->selectHeaders(
+            ['application/json', '*/*', ],
+            $contentType,
+            $multipart
+        );
 
         // for model (json/xml)
         if (count($formParams) > 0) {
@@ -1001,9 +1106,9 @@ public function getByIdRequest($tax_id, $properties = null, $properties_with_his
                 // for HTTP post (form)
                 $httpBody = new MultipartStream($multipartContents);
 
-            } elseif ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode($formParams);
-
+            } elseif (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the form parameters
+                $httpBody = \GuzzleHttp\Utils::jsonEncode($formParams);
             } else {
                 // for HTTP post (form)
                 $httpBody = ObjectSerializer::buildQuery($formParams);
@@ -1026,10 +1131,11 @@ public function getByIdRequest($tax_id, $properties = null, $properties_with_his
             $headers
         );
 
+        $operationHost = $this->config->getHost();
         $query = ObjectSerializer::buildQuery($queryParams);
         return new Request(
             'GET',
-            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
+            $operationHost . $resourcePath . ($query ? "?{$query}" : ''),
             $headers,
             $httpBody
         );
@@ -1046,14 +1152,15 @@ public function getByIdRequest($tax_id, $properties = null, $properties_with_his
      * @param  string[] $properties_with_history A comma separated list of the properties to be returned along with their history of previous values. If any of the specified properties are not present on the requested object(s), they will be ignored. Usage of this parameter will reduce the maximum number of objects that can be read by a single request. (optional)
      * @param  string[] $associations A comma separated list of object types to retrieve associated IDs for. If any of the specified associations do not exist, they will be ignored. (optional)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['getPage'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Taxes\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Taxes\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return \HubSpot\Client\Crm\Objects\Taxes\Model\CollectionResponseSimplePublicObjectWithAssociationsForwardPaging|\HubSpot\Client\Crm\Objects\Taxes\Model\Error
      */
-    public function getPage($limit = 10, $after = null, $properties = null, $properties_with_history = null, $associations = null, $archived = false)
+    public function getPage($limit = 10, $after = null, $properties = null, $properties_with_history = null, $associations = null, $archived = false, string $contentType = self::contentTypes['getPage'][0])
     {
-        list($response) = $this->getPageWithHttpInfo($limit, $after, $properties, $properties_with_history, $associations, $archived);
+        list($response) = $this->getPageWithHttpInfo($limit, $after, $properties, $properties_with_history, $associations, $archived, $contentType);
         return $response;
     }
 
@@ -1068,14 +1175,15 @@ public function getPage($limit = 10, $after = null, $properties = null, $propert
      * @param  string[] $properties_with_history A comma separated list of the properties to be returned along with their history of previous values. If any of the specified properties are not present on the requested object(s), they will be ignored. Usage of this parameter will reduce the maximum number of objects that can be read by a single request. (optional)
      * @param  string[] $associations A comma separated list of object types to retrieve associated IDs for. If any of the specified associations do not exist, they will be ignored. (optional)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['getPage'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Taxes\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Taxes\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return array of \HubSpot\Client\Crm\Objects\Taxes\Model\CollectionResponseSimplePublicObjectWithAssociationsForwardPaging|\HubSpot\Client\Crm\Objects\Taxes\Model\Error, HTTP status code, HTTP response headers (array of strings)
      */
-    public function getPageWithHttpInfo($limit = 10, $after = null, $properties = null, $properties_with_history = null, $associations = null, $archived = false)
+    public function getPageWithHttpInfo($limit = 10, $after = null, $properties = null, $properties_with_history = null, $associations = null, $archived = false, string $contentType = self::contentTypes['getPage'][0])
     {
-        $request = $this->getPageRequest($limit, $after, $properties, $properties_with_history, $associations, $archived);
+        $request = $this->getPageRequest($limit, $after, $properties, $properties_with_history, $associations, $archived, $contentType);
 
         try {
             $options = $this->createHttpClientOption();
@@ -1119,7 +1227,19 @@ public function getPageWithHttpInfo($limit = 10, $after = null, $properties = nu
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Taxes\Model\CollectionResponseSimplePublicObjectWithAssociationsForwardPaging' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -1134,7 +1254,19 @@ public function getPageWithHttpInfo($limit = 10, $after = null, $properties = nu
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Taxes\Model\Error' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -1151,7 +1283,19 @@ public function getPageWithHttpInfo($limit = 10, $after = null, $properties = nu
             } else {
                 $content = (string) $response->getBody();
                 if ($returnType !== 'string') {
-                    $content = json_decode($content);
+                    try {
+                        $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                    } catch (\JsonException $exception) {
+                        throw new ApiException(
+                            sprintf(
+                                'Error JSON decoding server response (%s)',
+                                $request->getUri()
+                            ),
+                            $statusCode,
+                            $response->getHeaders(),
+                            $content
+                        );
+                    }
                 }
             }
 
@@ -1195,13 +1339,14 @@ public function getPageWithHttpInfo($limit = 10, $after = null, $properties = nu
      * @param  string[] $properties_with_history A comma separated list of the properties to be returned along with their history of previous values. If any of the specified properties are not present on the requested object(s), they will be ignored. Usage of this parameter will reduce the maximum number of objects that can be read by a single request. (optional)
      * @param  string[] $associations A comma separated list of object types to retrieve associated IDs for. If any of the specified associations do not exist, they will be ignored. (optional)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['getPage'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function getPageAsync($limit = 10, $after = null, $properties = null, $properties_with_history = null, $associations = null, $archived = false)
+    public function getPageAsync($limit = 10, $after = null, $properties = null, $properties_with_history = null, $associations = null, $archived = false, string $contentType = self::contentTypes['getPage'][0])
     {
-        return $this->getPageAsyncWithHttpInfo($limit, $after, $properties, $properties_with_history, $associations, $archived)
+        return $this->getPageAsyncWithHttpInfo($limit, $after, $properties, $properties_with_history, $associations, $archived, $contentType)
             ->then(
                 function ($response) {
                     return $response[0];
@@ -1220,14 +1365,15 @@ function ($response) {
      * @param  string[] $properties_with_history A comma separated list of the properties to be returned along with their history of previous values. If any of the specified properties are not present on the requested object(s), they will be ignored. Usage of this parameter will reduce the maximum number of objects that can be read by a single request. (optional)
      * @param  string[] $associations A comma separated list of object types to retrieve associated IDs for. If any of the specified associations do not exist, they will be ignored. (optional)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['getPage'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function getPageAsyncWithHttpInfo($limit = 10, $after = null, $properties = null, $properties_with_history = null, $associations = null, $archived = false)
+    public function getPageAsyncWithHttpInfo($limit = 10, $after = null, $properties = null, $properties_with_history = null, $associations = null, $archived = false, string $contentType = self::contentTypes['getPage'][0])
     {
         $returnType = '\HubSpot\Client\Crm\Objects\Taxes\Model\CollectionResponseSimplePublicObjectWithAssociationsForwardPaging';
-        $request = $this->getPageRequest($limit, $after, $properties, $properties_with_history, $associations, $archived);
+        $request = $this->getPageRequest($limit, $after, $properties, $properties_with_history, $associations, $archived, $contentType);
 
         return $this->client
             ->sendAsync($request, $this->createHttpClientOption())
@@ -1274,13 +1420,21 @@ function ($exception) {
      * @param  string[] $properties_with_history A comma separated list of the properties to be returned along with their history of previous values. If any of the specified properties are not present on the requested object(s), they will be ignored. Usage of this parameter will reduce the maximum number of objects that can be read by a single request. (optional)
      * @param  string[] $associations A comma separated list of object types to retrieve associated IDs for. If any of the specified associations do not exist, they will be ignored. (optional)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['getPage'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Psr7\Request
      */
-    public function getPageRequest($limit = 10, $after = null, $properties = null, $properties_with_history = null, $associations = null, $archived = false)
+    public function getPageRequest($limit = 10, $after = null, $properties = null, $properties_with_history = null, $associations = null, $archived = false, string $contentType = self::contentTypes['getPage'][0])
     {
 
+
+
+
+
+
+
+
         $resourcePath = '/crm/v3/objects/taxes';
         $formParams = [];
         $queryParams = [];
@@ -1346,16 +1500,11 @@ public function getPageRequest($limit = 10, $after = null, $properties = null, $
 
 
 
-        if ($multipart) {
-            $headers = $this->headerSelector->selectHeadersForMultipart(
-                ['application/json', '*/*']
-            );
-        } else {
-            $headers = $this->headerSelector->selectHeaders(
-                ['application/json', '*/*'],
-                []
-            );
-        }
+        $headers = $this->headerSelector->selectHeaders(
+            ['application/json', '*/*', ],
+            $contentType,
+            $multipart
+        );
 
         // for model (json/xml)
         if (count($formParams) > 0) {
@@ -1373,9 +1522,9 @@ public function getPageRequest($limit = 10, $after = null, $properties = null, $
                 // for HTTP post (form)
                 $httpBody = new MultipartStream($multipartContents);
 
-            } elseif ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode($formParams);
-
+            } elseif (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the form parameters
+                $httpBody = \GuzzleHttp\Utils::jsonEncode($formParams);
             } else {
                 // for HTTP post (form)
                 $httpBody = ObjectSerializer::buildQuery($formParams);
@@ -1398,10 +1547,11 @@ public function getPageRequest($limit = 10, $after = null, $properties = null, $
             $headers
         );
 
+        $operationHost = $this->config->getHost();
         $query = ObjectSerializer::buildQuery($queryParams);
         return new Request(
             'GET',
-            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
+            $operationHost . $resourcePath . ($query ? "?{$query}" : ''),
             $headers,
             $httpBody
         );
@@ -1415,14 +1565,15 @@ public function getPageRequest($limit = 10, $after = null, $properties = null, $
      * @param  string $tax_id tax_id (required)
      * @param  \HubSpot\Client\Crm\Objects\Taxes\Model\SimplePublicObjectInput $simple_public_object_input simple_public_object_input (required)
      * @param  string $id_property The name of a property whose values are unique for this object type (optional)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['update'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Taxes\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Taxes\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return \HubSpot\Client\Crm\Objects\Taxes\Model\SimplePublicObject|\HubSpot\Client\Crm\Objects\Taxes\Model\Error
      */
-    public function update($tax_id, $simple_public_object_input, $id_property = null)
+    public function update($tax_id, $simple_public_object_input, $id_property = null, string $contentType = self::contentTypes['update'][0])
     {
-        list($response) = $this->updateWithHttpInfo($tax_id, $simple_public_object_input, $id_property);
+        list($response) = $this->updateWithHttpInfo($tax_id, $simple_public_object_input, $id_property, $contentType);
         return $response;
     }
 
@@ -1434,14 +1585,15 @@ public function update($tax_id, $simple_public_object_input, $id_property = null
      * @param  string $tax_id (required)
      * @param  \HubSpot\Client\Crm\Objects\Taxes\Model\SimplePublicObjectInput $simple_public_object_input (required)
      * @param  string $id_property The name of a property whose values are unique for this object type (optional)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['update'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Taxes\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Taxes\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return array of \HubSpot\Client\Crm\Objects\Taxes\Model\SimplePublicObject|\HubSpot\Client\Crm\Objects\Taxes\Model\Error, HTTP status code, HTTP response headers (array of strings)
      */
-    public function updateWithHttpInfo($tax_id, $simple_public_object_input, $id_property = null)
+    public function updateWithHttpInfo($tax_id, $simple_public_object_input, $id_property = null, string $contentType = self::contentTypes['update'][0])
     {
-        $request = $this->updateRequest($tax_id, $simple_public_object_input, $id_property);
+        $request = $this->updateRequest($tax_id, $simple_public_object_input, $id_property, $contentType);
 
         try {
             $options = $this->createHttpClientOption();
@@ -1485,7 +1637,19 @@ public function updateWithHttpInfo($tax_id, $simple_public_object_input, $id_pro
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Taxes\Model\SimplePublicObject' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -1500,7 +1664,19 @@ public function updateWithHttpInfo($tax_id, $simple_public_object_input, $id_pro
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Taxes\Model\Error' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -1517,7 +1693,19 @@ public function updateWithHttpInfo($tax_id, $simple_public_object_input, $id_pro
             } else {
                 $content = (string) $response->getBody();
                 if ($returnType !== 'string') {
-                    $content = json_decode($content);
+                    try {
+                        $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                    } catch (\JsonException $exception) {
+                        throw new ApiException(
+                            sprintf(
+                                'Error JSON decoding server response (%s)',
+                                $request->getUri()
+                            ),
+                            $statusCode,
+                            $response->getHeaders(),
+                            $content
+                        );
+                    }
                 }
             }
 
@@ -1558,13 +1746,14 @@ public function updateWithHttpInfo($tax_id, $simple_public_object_input, $id_pro
      * @param  string $tax_id (required)
      * @param  \HubSpot\Client\Crm\Objects\Taxes\Model\SimplePublicObjectInput $simple_public_object_input (required)
      * @param  string $id_property The name of a property whose values are unique for this object type (optional)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['update'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function updateAsync($tax_id, $simple_public_object_input, $id_property = null)
+    public function updateAsync($tax_id, $simple_public_object_input, $id_property = null, string $contentType = self::contentTypes['update'][0])
     {
-        return $this->updateAsyncWithHttpInfo($tax_id, $simple_public_object_input, $id_property)
+        return $this->updateAsyncWithHttpInfo($tax_id, $simple_public_object_input, $id_property, $contentType)
             ->then(
                 function ($response) {
                     return $response[0];
@@ -1580,14 +1769,15 @@ function ($response) {
      * @param  string $tax_id (required)
      * @param  \HubSpot\Client\Crm\Objects\Taxes\Model\SimplePublicObjectInput $simple_public_object_input (required)
      * @param  string $id_property The name of a property whose values are unique for this object type (optional)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['update'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function updateAsyncWithHttpInfo($tax_id, $simple_public_object_input, $id_property = null)
+    public function updateAsyncWithHttpInfo($tax_id, $simple_public_object_input, $id_property = null, string $contentType = self::contentTypes['update'][0])
     {
         $returnType = '\HubSpot\Client\Crm\Objects\Taxes\Model\SimplePublicObject';
-        $request = $this->updateRequest($tax_id, $simple_public_object_input, $id_property);
+        $request = $this->updateRequest($tax_id, $simple_public_object_input, $id_property, $contentType);
 
         return $this->client
             ->sendAsync($request, $this->createHttpClientOption())
@@ -1631,18 +1821,21 @@ function ($exception) {
      * @param  string $tax_id (required)
      * @param  \HubSpot\Client\Crm\Objects\Taxes\Model\SimplePublicObjectInput $simple_public_object_input (required)
      * @param  string $id_property The name of a property whose values are unique for this object type (optional)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['update'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Psr7\Request
      */
-    public function updateRequest($tax_id, $simple_public_object_input, $id_property = null)
+    public function updateRequest($tax_id, $simple_public_object_input, $id_property = null, string $contentType = self::contentTypes['update'][0])
     {
+
         // verify the required parameter 'tax_id' is set
         if ($tax_id === null || (is_array($tax_id) && count($tax_id) === 0)) {
             throw new \InvalidArgumentException(
                 'Missing the required parameter $tax_id when calling update'
             );
         }
+
         // verify the required parameter 'simple_public_object_input' is set
         if ($simple_public_object_input === null || (is_array($simple_public_object_input) && count($simple_public_object_input) === 0)) {
             throw new \InvalidArgumentException(
@@ -1650,6 +1843,8 @@ public function updateRequest($tax_id, $simple_public_object_input, $id_property
             );
         }
 
+
+
         $resourcePath = '/crm/v3/objects/taxes/{taxId}';
         $formParams = [];
         $queryParams = [];
@@ -1678,21 +1873,17 @@ public function updateRequest($tax_id, $simple_public_object_input, $id_property
         }
 
 
-        if ($multipart) {
-            $headers = $this->headerSelector->selectHeadersForMultipart(
-                ['application/json', '*/*']
-            );
-        } else {
-            $headers = $this->headerSelector->selectHeaders(
-                ['application/json', '*/*'],
-                ['application/json']
-            );
-        }
+        $headers = $this->headerSelector->selectHeaders(
+            ['application/json', '*/*', ],
+            $contentType,
+            $multipart
+        );
 
         // for model (json/xml)
         if (isset($simple_public_object_input)) {
-            if ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode(ObjectSerializer::sanitizeForSerialization($simple_public_object_input));
+            if (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the body
+                $httpBody = \GuzzleHttp\Utils::jsonEncode(ObjectSerializer::sanitizeForSerialization($simple_public_object_input));
             } else {
                 $httpBody = $simple_public_object_input;
             }
@@ -1711,9 +1902,9 @@ public function updateRequest($tax_id, $simple_public_object_input, $id_property
                 // for HTTP post (form)
                 $httpBody = new MultipartStream($multipartContents);
 
-            } elseif ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode($formParams);
-
+            } elseif (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the form parameters
+                $httpBody = \GuzzleHttp\Utils::jsonEncode($formParams);
             } else {
                 // for HTTP post (form)
                 $httpBody = ObjectSerializer::buildQuery($formParams);
@@ -1736,10 +1927,11 @@ public function updateRequest($tax_id, $simple_public_object_input, $id_property
             $headers
         );
 
+        $operationHost = $this->config->getHost();
         $query = ObjectSerializer::buildQuery($queryParams);
         return new Request(
             'PATCH',
-            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
+            $operationHost . $resourcePath . ($query ? "?{$query}" : ''),
             $headers,
             $httpBody
         );
diff --git a/codegen/Crm/Objects/Taxes/Api/BatchApi.php b/codegen/Crm/Objects/Taxes/Api/BatchApi.php
index ac7cf4e2..814e5cf2 100644
--- a/codegen/Crm/Objects/Taxes/Api/BatchApi.php
+++ b/codegen/Crm/Objects/Taxes/Api/BatchApi.php
@@ -16,7 +16,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -69,6 +69,22 @@ class BatchApi
      */
     protected $hostIndex;
 
+    /** @var string[] $contentTypes **/
+    public const contentTypes = [
+        'archive' => [
+            'application/json',
+        ],
+        'create' => [
+            'application/json',
+        ],
+        'read' => [
+            'application/json',
+        ],
+        'update' => [
+            'application/json',
+        ],
+    ];
+
     /**
      * @param ClientInterface $client
      * @param Configuration   $config
@@ -121,14 +137,15 @@ public function getConfig()
      * Archive a batch of taxes by ID
      *
      * @param  \HubSpot\Client\Crm\Objects\Taxes\Model\BatchInputSimplePublicObjectId $batch_input_simple_public_object_id batch_input_simple_public_object_id (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['archive'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Taxes\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Taxes\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return void
      */
-    public function archive($batch_input_simple_public_object_id)
+    public function archive($batch_input_simple_public_object_id, string $contentType = self::contentTypes['archive'][0])
     {
-        $this->archiveWithHttpInfo($batch_input_simple_public_object_id);
+        $this->archiveWithHttpInfo($batch_input_simple_public_object_id, $contentType);
     }
 
     /**
@@ -137,14 +154,15 @@ public function archive($batch_input_simple_public_object_id)
      * Archive a batch of taxes by ID
      *
      * @param  \HubSpot\Client\Crm\Objects\Taxes\Model\BatchInputSimplePublicObjectId $batch_input_simple_public_object_id (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['archive'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Taxes\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Taxes\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return array of null, HTTP status code, HTTP response headers (array of strings)
      */
-    public function archiveWithHttpInfo($batch_input_simple_public_object_id)
+    public function archiveWithHttpInfo($batch_input_simple_public_object_id, string $contentType = self::contentTypes['archive'][0])
     {
-        $request = $this->archiveRequest($batch_input_simple_public_object_id);
+        $request = $this->archiveRequest($batch_input_simple_public_object_id, $contentType);
 
         try {
             $options = $this->createHttpClientOption();
@@ -204,13 +222,14 @@ public function archiveWithHttpInfo($batch_input_simple_public_object_id)
      * Archive a batch of taxes by ID
      *
      * @param  \HubSpot\Client\Crm\Objects\Taxes\Model\BatchInputSimplePublicObjectId $batch_input_simple_public_object_id (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['archive'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function archiveAsync($batch_input_simple_public_object_id)
+    public function archiveAsync($batch_input_simple_public_object_id, string $contentType = self::contentTypes['archive'][0])
     {
-        return $this->archiveAsyncWithHttpInfo($batch_input_simple_public_object_id)
+        return $this->archiveAsyncWithHttpInfo($batch_input_simple_public_object_id, $contentType)
             ->then(
                 function ($response) {
                     return $response[0];
@@ -224,14 +243,15 @@ function ($response) {
      * Archive a batch of taxes by ID
      *
      * @param  \HubSpot\Client\Crm\Objects\Taxes\Model\BatchInputSimplePublicObjectId $batch_input_simple_public_object_id (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['archive'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function archiveAsyncWithHttpInfo($batch_input_simple_public_object_id)
+    public function archiveAsyncWithHttpInfo($batch_input_simple_public_object_id, string $contentType = self::contentTypes['archive'][0])
     {
         $returnType = '';
-        $request = $this->archiveRequest($batch_input_simple_public_object_id);
+        $request = $this->archiveRequest($batch_input_simple_public_object_id, $contentType);
 
         return $this->client
             ->sendAsync($request, $this->createHttpClientOption())
@@ -260,12 +280,14 @@ function ($exception) {
      * Create request for operation 'archive'
      *
      * @param  \HubSpot\Client\Crm\Objects\Taxes\Model\BatchInputSimplePublicObjectId $batch_input_simple_public_object_id (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['archive'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Psr7\Request
      */
-    public function archiveRequest($batch_input_simple_public_object_id)
+    public function archiveRequest($batch_input_simple_public_object_id, string $contentType = self::contentTypes['archive'][0])
     {
+
         // verify the required parameter 'batch_input_simple_public_object_id' is set
         if ($batch_input_simple_public_object_id === null || (is_array($batch_input_simple_public_object_id) && count($batch_input_simple_public_object_id) === 0)) {
             throw new \InvalidArgumentException(
@@ -273,6 +295,7 @@ public function archiveRequest($batch_input_simple_public_object_id)
             );
         }
 
+
         $resourcePath = '/crm/v3/objects/taxes/batch/archive';
         $formParams = [];
         $queryParams = [];
@@ -284,21 +307,17 @@ public function archiveRequest($batch_input_simple_public_object_id)
 
 
 
-        if ($multipart) {
-            $headers = $this->headerSelector->selectHeadersForMultipart(
-                ['*/*']
-            );
-        } else {
-            $headers = $this->headerSelector->selectHeaders(
-                ['*/*'],
-                ['application/json']
-            );
-        }
+        $headers = $this->headerSelector->selectHeaders(
+            ['*/*', ],
+            $contentType,
+            $multipart
+        );
 
         // for model (json/xml)
         if (isset($batch_input_simple_public_object_id)) {
-            if ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode(ObjectSerializer::sanitizeForSerialization($batch_input_simple_public_object_id));
+            if (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the body
+                $httpBody = \GuzzleHttp\Utils::jsonEncode(ObjectSerializer::sanitizeForSerialization($batch_input_simple_public_object_id));
             } else {
                 $httpBody = $batch_input_simple_public_object_id;
             }
@@ -317,9 +336,9 @@ public function archiveRequest($batch_input_simple_public_object_id)
                 // for HTTP post (form)
                 $httpBody = new MultipartStream($multipartContents);
 
-            } elseif ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode($formParams);
-
+            } elseif (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the form parameters
+                $httpBody = \GuzzleHttp\Utils::jsonEncode($formParams);
             } else {
                 // for HTTP post (form)
                 $httpBody = ObjectSerializer::buildQuery($formParams);
@@ -342,10 +361,11 @@ public function archiveRequest($batch_input_simple_public_object_id)
             $headers
         );
 
+        $operationHost = $this->config->getHost();
         $query = ObjectSerializer::buildQuery($queryParams);
         return new Request(
             'POST',
-            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
+            $operationHost . $resourcePath . ($query ? "?{$query}" : ''),
             $headers,
             $httpBody
         );
@@ -357,14 +377,15 @@ public function archiveRequest($batch_input_simple_public_object_id)
      * Create a batch of taxes
      *
      * @param  \HubSpot\Client\Crm\Objects\Taxes\Model\BatchInputSimplePublicObjectInputForCreate $batch_input_simple_public_object_input_for_create batch_input_simple_public_object_input_for_create (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['create'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Taxes\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Taxes\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return \HubSpot\Client\Crm\Objects\Taxes\Model\BatchResponseSimplePublicObject|\HubSpot\Client\Crm\Objects\Taxes\Model\BatchResponseSimplePublicObjectWithErrors|\HubSpot\Client\Crm\Objects\Taxes\Model\Error
      */
-    public function create($batch_input_simple_public_object_input_for_create)
+    public function create($batch_input_simple_public_object_input_for_create, string $contentType = self::contentTypes['create'][0])
     {
-        list($response) = $this->createWithHttpInfo($batch_input_simple_public_object_input_for_create);
+        list($response) = $this->createWithHttpInfo($batch_input_simple_public_object_input_for_create, $contentType);
         return $response;
     }
 
@@ -374,14 +395,15 @@ public function create($batch_input_simple_public_object_input_for_create)
      * Create a batch of taxes
      *
      * @param  \HubSpot\Client\Crm\Objects\Taxes\Model\BatchInputSimplePublicObjectInputForCreate $batch_input_simple_public_object_input_for_create (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['create'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Taxes\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Taxes\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return array of \HubSpot\Client\Crm\Objects\Taxes\Model\BatchResponseSimplePublicObject|\HubSpot\Client\Crm\Objects\Taxes\Model\BatchResponseSimplePublicObjectWithErrors|\HubSpot\Client\Crm\Objects\Taxes\Model\Error, HTTP status code, HTTP response headers (array of strings)
      */
-    public function createWithHttpInfo($batch_input_simple_public_object_input_for_create)
+    public function createWithHttpInfo($batch_input_simple_public_object_input_for_create, string $contentType = self::contentTypes['create'][0])
     {
-        $request = $this->createRequest($batch_input_simple_public_object_input_for_create);
+        $request = $this->createRequest($batch_input_simple_public_object_input_for_create, $contentType);
 
         try {
             $options = $this->createHttpClientOption();
@@ -425,7 +447,19 @@ public function createWithHttpInfo($batch_input_simple_public_object_input_for_c
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Taxes\Model\BatchResponseSimplePublicObject' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -440,7 +474,19 @@ public function createWithHttpInfo($batch_input_simple_public_object_input_for_c
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Taxes\Model\BatchResponseSimplePublicObjectWithErrors' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -455,7 +501,19 @@ public function createWithHttpInfo($batch_input_simple_public_object_input_for_c
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Taxes\Model\Error' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -472,7 +530,19 @@ public function createWithHttpInfo($batch_input_simple_public_object_input_for_c
             } else {
                 $content = (string) $response->getBody();
                 if ($returnType !== 'string') {
-                    $content = json_decode($content);
+                    try {
+                        $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                    } catch (\JsonException $exception) {
+                        throw new ApiException(
+                            sprintf(
+                                'Error JSON decoding server response (%s)',
+                                $request->getUri()
+                            ),
+                            $statusCode,
+                            $response->getHeaders(),
+                            $content
+                        );
+                    }
                 }
             }
 
@@ -519,13 +589,14 @@ public function createWithHttpInfo($batch_input_simple_public_object_input_for_c
      * Create a batch of taxes
      *
      * @param  \HubSpot\Client\Crm\Objects\Taxes\Model\BatchInputSimplePublicObjectInputForCreate $batch_input_simple_public_object_input_for_create (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['create'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function createAsync($batch_input_simple_public_object_input_for_create)
+    public function createAsync($batch_input_simple_public_object_input_for_create, string $contentType = self::contentTypes['create'][0])
     {
-        return $this->createAsyncWithHttpInfo($batch_input_simple_public_object_input_for_create)
+        return $this->createAsyncWithHttpInfo($batch_input_simple_public_object_input_for_create, $contentType)
             ->then(
                 function ($response) {
                     return $response[0];
@@ -539,14 +610,15 @@ function ($response) {
      * Create a batch of taxes
      *
      * @param  \HubSpot\Client\Crm\Objects\Taxes\Model\BatchInputSimplePublicObjectInputForCreate $batch_input_simple_public_object_input_for_create (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['create'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function createAsyncWithHttpInfo($batch_input_simple_public_object_input_for_create)
+    public function createAsyncWithHttpInfo($batch_input_simple_public_object_input_for_create, string $contentType = self::contentTypes['create'][0])
     {
         $returnType = '\HubSpot\Client\Crm\Objects\Taxes\Model\BatchResponseSimplePublicObject';
-        $request = $this->createRequest($batch_input_simple_public_object_input_for_create);
+        $request = $this->createRequest($batch_input_simple_public_object_input_for_create, $contentType);
 
         return $this->client
             ->sendAsync($request, $this->createHttpClientOption())
@@ -588,12 +660,14 @@ function ($exception) {
      * Create request for operation 'create'
      *
      * @param  \HubSpot\Client\Crm\Objects\Taxes\Model\BatchInputSimplePublicObjectInputForCreate $batch_input_simple_public_object_input_for_create (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['create'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Psr7\Request
      */
-    public function createRequest($batch_input_simple_public_object_input_for_create)
+    public function createRequest($batch_input_simple_public_object_input_for_create, string $contentType = self::contentTypes['create'][0])
     {
+
         // verify the required parameter 'batch_input_simple_public_object_input_for_create' is set
         if ($batch_input_simple_public_object_input_for_create === null || (is_array($batch_input_simple_public_object_input_for_create) && count($batch_input_simple_public_object_input_for_create) === 0)) {
             throw new \InvalidArgumentException(
@@ -601,6 +675,7 @@ public function createRequest($batch_input_simple_public_object_input_for_create
             );
         }
 
+
         $resourcePath = '/crm/v3/objects/taxes/batch/create';
         $formParams = [];
         $queryParams = [];
@@ -612,21 +687,17 @@ public function createRequest($batch_input_simple_public_object_input_for_create
 
 
 
-        if ($multipart) {
-            $headers = $this->headerSelector->selectHeadersForMultipart(
-                ['application/json', '*/*']
-            );
-        } else {
-            $headers = $this->headerSelector->selectHeaders(
-                ['application/json', '*/*'],
-                ['application/json']
-            );
-        }
+        $headers = $this->headerSelector->selectHeaders(
+            ['application/json', '*/*', ],
+            $contentType,
+            $multipart
+        );
 
         // for model (json/xml)
         if (isset($batch_input_simple_public_object_input_for_create)) {
-            if ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode(ObjectSerializer::sanitizeForSerialization($batch_input_simple_public_object_input_for_create));
+            if (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the body
+                $httpBody = \GuzzleHttp\Utils::jsonEncode(ObjectSerializer::sanitizeForSerialization($batch_input_simple_public_object_input_for_create));
             } else {
                 $httpBody = $batch_input_simple_public_object_input_for_create;
             }
@@ -645,9 +716,9 @@ public function createRequest($batch_input_simple_public_object_input_for_create
                 // for HTTP post (form)
                 $httpBody = new MultipartStream($multipartContents);
 
-            } elseif ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode($formParams);
-
+            } elseif (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the form parameters
+                $httpBody = \GuzzleHttp\Utils::jsonEncode($formParams);
             } else {
                 // for HTTP post (form)
                 $httpBody = ObjectSerializer::buildQuery($formParams);
@@ -670,10 +741,11 @@ public function createRequest($batch_input_simple_public_object_input_for_create
             $headers
         );
 
+        $operationHost = $this->config->getHost();
         $query = ObjectSerializer::buildQuery($queryParams);
         return new Request(
             'POST',
-            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
+            $operationHost . $resourcePath . ($query ? "?{$query}" : ''),
             $headers,
             $httpBody
         );
@@ -686,14 +758,15 @@ public function createRequest($batch_input_simple_public_object_input_for_create
      *
      * @param  \HubSpot\Client\Crm\Objects\Taxes\Model\BatchReadInputSimplePublicObjectId $batch_read_input_simple_public_object_id batch_read_input_simple_public_object_id (required)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['read'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Taxes\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Taxes\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return \HubSpot\Client\Crm\Objects\Taxes\Model\BatchResponseSimplePublicObject|\HubSpot\Client\Crm\Objects\Taxes\Model\BatchResponseSimplePublicObjectWithErrors|\HubSpot\Client\Crm\Objects\Taxes\Model\Error
      */
-    public function read($batch_read_input_simple_public_object_id, $archived = false)
+    public function read($batch_read_input_simple_public_object_id, $archived = false, string $contentType = self::contentTypes['read'][0])
     {
-        list($response) = $this->readWithHttpInfo($batch_read_input_simple_public_object_id, $archived);
+        list($response) = $this->readWithHttpInfo($batch_read_input_simple_public_object_id, $archived, $contentType);
         return $response;
     }
 
@@ -704,14 +777,15 @@ public function read($batch_read_input_simple_public_object_id, $archived = fals
      *
      * @param  \HubSpot\Client\Crm\Objects\Taxes\Model\BatchReadInputSimplePublicObjectId $batch_read_input_simple_public_object_id (required)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['read'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Taxes\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Taxes\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return array of \HubSpot\Client\Crm\Objects\Taxes\Model\BatchResponseSimplePublicObject|\HubSpot\Client\Crm\Objects\Taxes\Model\BatchResponseSimplePublicObjectWithErrors|\HubSpot\Client\Crm\Objects\Taxes\Model\Error, HTTP status code, HTTP response headers (array of strings)
      */
-    public function readWithHttpInfo($batch_read_input_simple_public_object_id, $archived = false)
+    public function readWithHttpInfo($batch_read_input_simple_public_object_id, $archived = false, string $contentType = self::contentTypes['read'][0])
     {
-        $request = $this->readRequest($batch_read_input_simple_public_object_id, $archived);
+        $request = $this->readRequest($batch_read_input_simple_public_object_id, $archived, $contentType);
 
         try {
             $options = $this->createHttpClientOption();
@@ -755,7 +829,19 @@ public function readWithHttpInfo($batch_read_input_simple_public_object_id, $arc
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Taxes\Model\BatchResponseSimplePublicObject' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -770,7 +856,19 @@ public function readWithHttpInfo($batch_read_input_simple_public_object_id, $arc
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Taxes\Model\BatchResponseSimplePublicObjectWithErrors' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -785,7 +883,19 @@ public function readWithHttpInfo($batch_read_input_simple_public_object_id, $arc
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Taxes\Model\Error' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -802,7 +912,19 @@ public function readWithHttpInfo($batch_read_input_simple_public_object_id, $arc
             } else {
                 $content = (string) $response->getBody();
                 if ($returnType !== 'string') {
-                    $content = json_decode($content);
+                    try {
+                        $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                    } catch (\JsonException $exception) {
+                        throw new ApiException(
+                            sprintf(
+                                'Error JSON decoding server response (%s)',
+                                $request->getUri()
+                            ),
+                            $statusCode,
+                            $response->getHeaders(),
+                            $content
+                        );
+                    }
                 }
             }
 
@@ -850,13 +972,14 @@ public function readWithHttpInfo($batch_read_input_simple_public_object_id, $arc
      *
      * @param  \HubSpot\Client\Crm\Objects\Taxes\Model\BatchReadInputSimplePublicObjectId $batch_read_input_simple_public_object_id (required)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['read'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function readAsync($batch_read_input_simple_public_object_id, $archived = false)
+    public function readAsync($batch_read_input_simple_public_object_id, $archived = false, string $contentType = self::contentTypes['read'][0])
     {
-        return $this->readAsyncWithHttpInfo($batch_read_input_simple_public_object_id, $archived)
+        return $this->readAsyncWithHttpInfo($batch_read_input_simple_public_object_id, $archived, $contentType)
             ->then(
                 function ($response) {
                     return $response[0];
@@ -871,14 +994,15 @@ function ($response) {
      *
      * @param  \HubSpot\Client\Crm\Objects\Taxes\Model\BatchReadInputSimplePublicObjectId $batch_read_input_simple_public_object_id (required)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['read'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function readAsyncWithHttpInfo($batch_read_input_simple_public_object_id, $archived = false)
+    public function readAsyncWithHttpInfo($batch_read_input_simple_public_object_id, $archived = false, string $contentType = self::contentTypes['read'][0])
     {
         $returnType = '\HubSpot\Client\Crm\Objects\Taxes\Model\BatchResponseSimplePublicObject';
-        $request = $this->readRequest($batch_read_input_simple_public_object_id, $archived);
+        $request = $this->readRequest($batch_read_input_simple_public_object_id, $archived, $contentType);
 
         return $this->client
             ->sendAsync($request, $this->createHttpClientOption())
@@ -921,12 +1045,14 @@ function ($exception) {
      *
      * @param  \HubSpot\Client\Crm\Objects\Taxes\Model\BatchReadInputSimplePublicObjectId $batch_read_input_simple_public_object_id (required)
      * @param  bool $archived Whether to return only results that have been archived. (optional, default to false)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['read'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Psr7\Request
      */
-    public function readRequest($batch_read_input_simple_public_object_id, $archived = false)
+    public function readRequest($batch_read_input_simple_public_object_id, $archived = false, string $contentType = self::contentTypes['read'][0])
     {
+
         // verify the required parameter 'batch_read_input_simple_public_object_id' is set
         if ($batch_read_input_simple_public_object_id === null || (is_array($batch_read_input_simple_public_object_id) && count($batch_read_input_simple_public_object_id) === 0)) {
             throw new \InvalidArgumentException(
@@ -934,6 +1060,8 @@ public function readRequest($batch_read_input_simple_public_object_id, $archived
             );
         }
 
+
+
         $resourcePath = '/crm/v3/objects/taxes/batch/read';
         $formParams = [];
         $queryParams = [];
@@ -954,21 +1082,17 @@ public function readRequest($batch_read_input_simple_public_object_id, $archived
 
 
 
-        if ($multipart) {
-            $headers = $this->headerSelector->selectHeadersForMultipart(
-                ['application/json', '*/*']
-            );
-        } else {
-            $headers = $this->headerSelector->selectHeaders(
-                ['application/json', '*/*'],
-                ['application/json']
-            );
-        }
+        $headers = $this->headerSelector->selectHeaders(
+            ['application/json', '*/*', ],
+            $contentType,
+            $multipart
+        );
 
         // for model (json/xml)
         if (isset($batch_read_input_simple_public_object_id)) {
-            if ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode(ObjectSerializer::sanitizeForSerialization($batch_read_input_simple_public_object_id));
+            if (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the body
+                $httpBody = \GuzzleHttp\Utils::jsonEncode(ObjectSerializer::sanitizeForSerialization($batch_read_input_simple_public_object_id));
             } else {
                 $httpBody = $batch_read_input_simple_public_object_id;
             }
@@ -987,9 +1111,9 @@ public function readRequest($batch_read_input_simple_public_object_id, $archived
                 // for HTTP post (form)
                 $httpBody = new MultipartStream($multipartContents);
 
-            } elseif ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode($formParams);
-
+            } elseif (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the form parameters
+                $httpBody = \GuzzleHttp\Utils::jsonEncode($formParams);
             } else {
                 // for HTTP post (form)
                 $httpBody = ObjectSerializer::buildQuery($formParams);
@@ -1012,10 +1136,11 @@ public function readRequest($batch_read_input_simple_public_object_id, $archived
             $headers
         );
 
+        $operationHost = $this->config->getHost();
         $query = ObjectSerializer::buildQuery($queryParams);
         return new Request(
             'POST',
-            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
+            $operationHost . $resourcePath . ($query ? "?{$query}" : ''),
             $headers,
             $httpBody
         );
@@ -1027,14 +1152,15 @@ public function readRequest($batch_read_input_simple_public_object_id, $archived
      * Update a batch of taxes
      *
      * @param  \HubSpot\Client\Crm\Objects\Taxes\Model\BatchInputSimplePublicObjectBatchInput $batch_input_simple_public_object_batch_input batch_input_simple_public_object_batch_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['update'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Taxes\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Taxes\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return \HubSpot\Client\Crm\Objects\Taxes\Model\BatchResponseSimplePublicObject|\HubSpot\Client\Crm\Objects\Taxes\Model\BatchResponseSimplePublicObjectWithErrors|\HubSpot\Client\Crm\Objects\Taxes\Model\Error
      */
-    public function update($batch_input_simple_public_object_batch_input)
+    public function update($batch_input_simple_public_object_batch_input, string $contentType = self::contentTypes['update'][0])
     {
-        list($response) = $this->updateWithHttpInfo($batch_input_simple_public_object_batch_input);
+        list($response) = $this->updateWithHttpInfo($batch_input_simple_public_object_batch_input, $contentType);
         return $response;
     }
 
@@ -1044,14 +1170,15 @@ public function update($batch_input_simple_public_object_batch_input)
      * Update a batch of taxes
      *
      * @param  \HubSpot\Client\Crm\Objects\Taxes\Model\BatchInputSimplePublicObjectBatchInput $batch_input_simple_public_object_batch_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['update'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Taxes\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Taxes\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return array of \HubSpot\Client\Crm\Objects\Taxes\Model\BatchResponseSimplePublicObject|\HubSpot\Client\Crm\Objects\Taxes\Model\BatchResponseSimplePublicObjectWithErrors|\HubSpot\Client\Crm\Objects\Taxes\Model\Error, HTTP status code, HTTP response headers (array of strings)
      */
-    public function updateWithHttpInfo($batch_input_simple_public_object_batch_input)
+    public function updateWithHttpInfo($batch_input_simple_public_object_batch_input, string $contentType = self::contentTypes['update'][0])
     {
-        $request = $this->updateRequest($batch_input_simple_public_object_batch_input);
+        $request = $this->updateRequest($batch_input_simple_public_object_batch_input, $contentType);
 
         try {
             $options = $this->createHttpClientOption();
@@ -1095,7 +1222,19 @@ public function updateWithHttpInfo($batch_input_simple_public_object_batch_input
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Taxes\Model\BatchResponseSimplePublicObject' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -1110,7 +1249,19 @@ public function updateWithHttpInfo($batch_input_simple_public_object_batch_input
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Taxes\Model\BatchResponseSimplePublicObjectWithErrors' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -1125,7 +1276,19 @@ public function updateWithHttpInfo($batch_input_simple_public_object_batch_input
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Taxes\Model\Error' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -1142,7 +1305,19 @@ public function updateWithHttpInfo($batch_input_simple_public_object_batch_input
             } else {
                 $content = (string) $response->getBody();
                 if ($returnType !== 'string') {
-                    $content = json_decode($content);
+                    try {
+                        $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                    } catch (\JsonException $exception) {
+                        throw new ApiException(
+                            sprintf(
+                                'Error JSON decoding server response (%s)',
+                                $request->getUri()
+                            ),
+                            $statusCode,
+                            $response->getHeaders(),
+                            $content
+                        );
+                    }
                 }
             }
 
@@ -1189,13 +1364,14 @@ public function updateWithHttpInfo($batch_input_simple_public_object_batch_input
      * Update a batch of taxes
      *
      * @param  \HubSpot\Client\Crm\Objects\Taxes\Model\BatchInputSimplePublicObjectBatchInput $batch_input_simple_public_object_batch_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['update'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function updateAsync($batch_input_simple_public_object_batch_input)
+    public function updateAsync($batch_input_simple_public_object_batch_input, string $contentType = self::contentTypes['update'][0])
     {
-        return $this->updateAsyncWithHttpInfo($batch_input_simple_public_object_batch_input)
+        return $this->updateAsyncWithHttpInfo($batch_input_simple_public_object_batch_input, $contentType)
             ->then(
                 function ($response) {
                     return $response[0];
@@ -1209,14 +1385,15 @@ function ($response) {
      * Update a batch of taxes
      *
      * @param  \HubSpot\Client\Crm\Objects\Taxes\Model\BatchInputSimplePublicObjectBatchInput $batch_input_simple_public_object_batch_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['update'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function updateAsyncWithHttpInfo($batch_input_simple_public_object_batch_input)
+    public function updateAsyncWithHttpInfo($batch_input_simple_public_object_batch_input, string $contentType = self::contentTypes['update'][0])
     {
         $returnType = '\HubSpot\Client\Crm\Objects\Taxes\Model\BatchResponseSimplePublicObject';
-        $request = $this->updateRequest($batch_input_simple_public_object_batch_input);
+        $request = $this->updateRequest($batch_input_simple_public_object_batch_input, $contentType);
 
         return $this->client
             ->sendAsync($request, $this->createHttpClientOption())
@@ -1258,12 +1435,14 @@ function ($exception) {
      * Create request for operation 'update'
      *
      * @param  \HubSpot\Client\Crm\Objects\Taxes\Model\BatchInputSimplePublicObjectBatchInput $batch_input_simple_public_object_batch_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['update'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Psr7\Request
      */
-    public function updateRequest($batch_input_simple_public_object_batch_input)
+    public function updateRequest($batch_input_simple_public_object_batch_input, string $contentType = self::contentTypes['update'][0])
     {
+
         // verify the required parameter 'batch_input_simple_public_object_batch_input' is set
         if ($batch_input_simple_public_object_batch_input === null || (is_array($batch_input_simple_public_object_batch_input) && count($batch_input_simple_public_object_batch_input) === 0)) {
             throw new \InvalidArgumentException(
@@ -1271,6 +1450,7 @@ public function updateRequest($batch_input_simple_public_object_batch_input)
             );
         }
 
+
         $resourcePath = '/crm/v3/objects/taxes/batch/update';
         $formParams = [];
         $queryParams = [];
@@ -1282,21 +1462,17 @@ public function updateRequest($batch_input_simple_public_object_batch_input)
 
 
 
-        if ($multipart) {
-            $headers = $this->headerSelector->selectHeadersForMultipart(
-                ['application/json', '*/*']
-            );
-        } else {
-            $headers = $this->headerSelector->selectHeaders(
-                ['application/json', '*/*'],
-                ['application/json']
-            );
-        }
+        $headers = $this->headerSelector->selectHeaders(
+            ['application/json', '*/*', ],
+            $contentType,
+            $multipart
+        );
 
         // for model (json/xml)
         if (isset($batch_input_simple_public_object_batch_input)) {
-            if ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode(ObjectSerializer::sanitizeForSerialization($batch_input_simple_public_object_batch_input));
+            if (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the body
+                $httpBody = \GuzzleHttp\Utils::jsonEncode(ObjectSerializer::sanitizeForSerialization($batch_input_simple_public_object_batch_input));
             } else {
                 $httpBody = $batch_input_simple_public_object_batch_input;
             }
@@ -1315,9 +1491,9 @@ public function updateRequest($batch_input_simple_public_object_batch_input)
                 // for HTTP post (form)
                 $httpBody = new MultipartStream($multipartContents);
 
-            } elseif ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode($formParams);
-
+            } elseif (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the form parameters
+                $httpBody = \GuzzleHttp\Utils::jsonEncode($formParams);
             } else {
                 // for HTTP post (form)
                 $httpBody = ObjectSerializer::buildQuery($formParams);
@@ -1340,10 +1516,11 @@ public function updateRequest($batch_input_simple_public_object_batch_input)
             $headers
         );
 
+        $operationHost = $this->config->getHost();
         $query = ObjectSerializer::buildQuery($queryParams);
         return new Request(
             'POST',
-            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
+            $operationHost . $resourcePath . ($query ? "?{$query}" : ''),
             $headers,
             $httpBody
         );
diff --git a/codegen/Crm/Objects/Taxes/Api/GDPRApi.php b/codegen/Crm/Objects/Taxes/Api/GDPRApi.php
index 207a9582..bddd32e4 100644
--- a/codegen/Crm/Objects/Taxes/Api/GDPRApi.php
+++ b/codegen/Crm/Objects/Taxes/Api/GDPRApi.php
@@ -16,7 +16,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -69,6 +69,13 @@ class GDPRApi
      */
     protected $hostIndex;
 
+    /** @var string[] $contentTypes **/
+    public const contentTypes = [
+        'purge' => [
+            'application/json',
+        ],
+    ];
+
     /**
      * @param ClientInterface $client
      * @param Configuration   $config
@@ -121,14 +128,15 @@ public function getConfig()
      * GDPR DELETE
      *
      * @param  \HubSpot\Client\Crm\Objects\Taxes\Model\PublicGdprDeleteInput $public_gdpr_delete_input public_gdpr_delete_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['purge'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Taxes\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Taxes\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return void
      */
-    public function purge($public_gdpr_delete_input)
+    public function purge($public_gdpr_delete_input, string $contentType = self::contentTypes['purge'][0])
     {
-        $this->purgeWithHttpInfo($public_gdpr_delete_input);
+        $this->purgeWithHttpInfo($public_gdpr_delete_input, $contentType);
     }
 
     /**
@@ -137,14 +145,15 @@ public function purge($public_gdpr_delete_input)
      * GDPR DELETE
      *
      * @param  \HubSpot\Client\Crm\Objects\Taxes\Model\PublicGdprDeleteInput $public_gdpr_delete_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['purge'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Taxes\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Taxes\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return array of null, HTTP status code, HTTP response headers (array of strings)
      */
-    public function purgeWithHttpInfo($public_gdpr_delete_input)
+    public function purgeWithHttpInfo($public_gdpr_delete_input, string $contentType = self::contentTypes['purge'][0])
     {
-        $request = $this->purgeRequest($public_gdpr_delete_input);
+        $request = $this->purgeRequest($public_gdpr_delete_input, $contentType);
 
         try {
             $options = $this->createHttpClientOption();
@@ -204,13 +213,14 @@ public function purgeWithHttpInfo($public_gdpr_delete_input)
      * GDPR DELETE
      *
      * @param  \HubSpot\Client\Crm\Objects\Taxes\Model\PublicGdprDeleteInput $public_gdpr_delete_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['purge'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function purgeAsync($public_gdpr_delete_input)
+    public function purgeAsync($public_gdpr_delete_input, string $contentType = self::contentTypes['purge'][0])
     {
-        return $this->purgeAsyncWithHttpInfo($public_gdpr_delete_input)
+        return $this->purgeAsyncWithHttpInfo($public_gdpr_delete_input, $contentType)
             ->then(
                 function ($response) {
                     return $response[0];
@@ -224,14 +234,15 @@ function ($response) {
      * GDPR DELETE
      *
      * @param  \HubSpot\Client\Crm\Objects\Taxes\Model\PublicGdprDeleteInput $public_gdpr_delete_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['purge'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function purgeAsyncWithHttpInfo($public_gdpr_delete_input)
+    public function purgeAsyncWithHttpInfo($public_gdpr_delete_input, string $contentType = self::contentTypes['purge'][0])
     {
         $returnType = '';
-        $request = $this->purgeRequest($public_gdpr_delete_input);
+        $request = $this->purgeRequest($public_gdpr_delete_input, $contentType);
 
         return $this->client
             ->sendAsync($request, $this->createHttpClientOption())
@@ -260,12 +271,14 @@ function ($exception) {
      * Create request for operation 'purge'
      *
      * @param  \HubSpot\Client\Crm\Objects\Taxes\Model\PublicGdprDeleteInput $public_gdpr_delete_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['purge'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Psr7\Request
      */
-    public function purgeRequest($public_gdpr_delete_input)
+    public function purgeRequest($public_gdpr_delete_input, string $contentType = self::contentTypes['purge'][0])
     {
+
         // verify the required parameter 'public_gdpr_delete_input' is set
         if ($public_gdpr_delete_input === null || (is_array($public_gdpr_delete_input) && count($public_gdpr_delete_input) === 0)) {
             throw new \InvalidArgumentException(
@@ -273,6 +286,7 @@ public function purgeRequest($public_gdpr_delete_input)
             );
         }
 
+
         $resourcePath = '/crm/v3/objects/taxes/gdpr-delete';
         $formParams = [];
         $queryParams = [];
@@ -284,21 +298,17 @@ public function purgeRequest($public_gdpr_delete_input)
 
 
 
-        if ($multipart) {
-            $headers = $this->headerSelector->selectHeadersForMultipart(
-                ['*/*']
-            );
-        } else {
-            $headers = $this->headerSelector->selectHeaders(
-                ['*/*'],
-                ['application/json']
-            );
-        }
+        $headers = $this->headerSelector->selectHeaders(
+            ['*/*', ],
+            $contentType,
+            $multipart
+        );
 
         // for model (json/xml)
         if (isset($public_gdpr_delete_input)) {
-            if ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode(ObjectSerializer::sanitizeForSerialization($public_gdpr_delete_input));
+            if (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the body
+                $httpBody = \GuzzleHttp\Utils::jsonEncode(ObjectSerializer::sanitizeForSerialization($public_gdpr_delete_input));
             } else {
                 $httpBody = $public_gdpr_delete_input;
             }
@@ -317,9 +327,9 @@ public function purgeRequest($public_gdpr_delete_input)
                 // for HTTP post (form)
                 $httpBody = new MultipartStream($multipartContents);
 
-            } elseif ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode($formParams);
-
+            } elseif (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the form parameters
+                $httpBody = \GuzzleHttp\Utils::jsonEncode($formParams);
             } else {
                 // for HTTP post (form)
                 $httpBody = ObjectSerializer::buildQuery($formParams);
@@ -342,10 +352,11 @@ public function purgeRequest($public_gdpr_delete_input)
             $headers
         );
 
+        $operationHost = $this->config->getHost();
         $query = ObjectSerializer::buildQuery($queryParams);
         return new Request(
             'POST',
-            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
+            $operationHost . $resourcePath . ($query ? "?{$query}" : ''),
             $headers,
             $httpBody
         );
diff --git a/codegen/Crm/Objects/Taxes/Api/PublicObjectApi.php b/codegen/Crm/Objects/Taxes/Api/PublicObjectApi.php
index e171c7d0..cd243f8d 100644
--- a/codegen/Crm/Objects/Taxes/Api/PublicObjectApi.php
+++ b/codegen/Crm/Objects/Taxes/Api/PublicObjectApi.php
@@ -16,7 +16,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -69,6 +69,13 @@ class PublicObjectApi
      */
     protected $hostIndex;
 
+    /** @var string[] $contentTypes **/
+    public const contentTypes = [
+        'merge' => [
+            'application/json',
+        ],
+    ];
+
     /**
      * @param ClientInterface $client
      * @param Configuration   $config
@@ -121,14 +128,15 @@ public function getConfig()
      * Merge two taxes with same type
      *
      * @param  \HubSpot\Client\Crm\Objects\Taxes\Model\PublicMergeInput $public_merge_input public_merge_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['merge'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Taxes\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Taxes\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return \HubSpot\Client\Crm\Objects\Taxes\Model\SimplePublicObject|\HubSpot\Client\Crm\Objects\Taxes\Model\Error
      */
-    public function merge($public_merge_input)
+    public function merge($public_merge_input, string $contentType = self::contentTypes['merge'][0])
     {
-        list($response) = $this->mergeWithHttpInfo($public_merge_input);
+        list($response) = $this->mergeWithHttpInfo($public_merge_input, $contentType);
         return $response;
     }
 
@@ -138,14 +146,15 @@ public function merge($public_merge_input)
      * Merge two taxes with same type
      *
      * @param  \HubSpot\Client\Crm\Objects\Taxes\Model\PublicMergeInput $public_merge_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['merge'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Taxes\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Taxes\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return array of \HubSpot\Client\Crm\Objects\Taxes\Model\SimplePublicObject|\HubSpot\Client\Crm\Objects\Taxes\Model\Error, HTTP status code, HTTP response headers (array of strings)
      */
-    public function mergeWithHttpInfo($public_merge_input)
+    public function mergeWithHttpInfo($public_merge_input, string $contentType = self::contentTypes['merge'][0])
     {
-        $request = $this->mergeRequest($public_merge_input);
+        $request = $this->mergeRequest($public_merge_input, $contentType);
 
         try {
             $options = $this->createHttpClientOption();
@@ -189,7 +198,19 @@ public function mergeWithHttpInfo($public_merge_input)
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Taxes\Model\SimplePublicObject' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -204,7 +225,19 @@ public function mergeWithHttpInfo($public_merge_input)
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Taxes\Model\Error' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -221,7 +254,19 @@ public function mergeWithHttpInfo($public_merge_input)
             } else {
                 $content = (string) $response->getBody();
                 if ($returnType !== 'string') {
-                    $content = json_decode($content);
+                    try {
+                        $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                    } catch (\JsonException $exception) {
+                        throw new ApiException(
+                            sprintf(
+                                'Error JSON decoding server response (%s)',
+                                $request->getUri()
+                            ),
+                            $statusCode,
+                            $response->getHeaders(),
+                            $content
+                        );
+                    }
                 }
             }
 
@@ -260,13 +305,14 @@ public function mergeWithHttpInfo($public_merge_input)
      * Merge two taxes with same type
      *
      * @param  \HubSpot\Client\Crm\Objects\Taxes\Model\PublicMergeInput $public_merge_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['merge'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function mergeAsync($public_merge_input)
+    public function mergeAsync($public_merge_input, string $contentType = self::contentTypes['merge'][0])
     {
-        return $this->mergeAsyncWithHttpInfo($public_merge_input)
+        return $this->mergeAsyncWithHttpInfo($public_merge_input, $contentType)
             ->then(
                 function ($response) {
                     return $response[0];
@@ -280,14 +326,15 @@ function ($response) {
      * Merge two taxes with same type
      *
      * @param  \HubSpot\Client\Crm\Objects\Taxes\Model\PublicMergeInput $public_merge_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['merge'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function mergeAsyncWithHttpInfo($public_merge_input)
+    public function mergeAsyncWithHttpInfo($public_merge_input, string $contentType = self::contentTypes['merge'][0])
     {
         $returnType = '\HubSpot\Client\Crm\Objects\Taxes\Model\SimplePublicObject';
-        $request = $this->mergeRequest($public_merge_input);
+        $request = $this->mergeRequest($public_merge_input, $contentType);
 
         return $this->client
             ->sendAsync($request, $this->createHttpClientOption())
@@ -329,12 +376,14 @@ function ($exception) {
      * Create request for operation 'merge'
      *
      * @param  \HubSpot\Client\Crm\Objects\Taxes\Model\PublicMergeInput $public_merge_input (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['merge'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Psr7\Request
      */
-    public function mergeRequest($public_merge_input)
+    public function mergeRequest($public_merge_input, string $contentType = self::contentTypes['merge'][0])
     {
+
         // verify the required parameter 'public_merge_input' is set
         if ($public_merge_input === null || (is_array($public_merge_input) && count($public_merge_input) === 0)) {
             throw new \InvalidArgumentException(
@@ -342,6 +391,7 @@ public function mergeRequest($public_merge_input)
             );
         }
 
+
         $resourcePath = '/crm/v3/objects/taxes/merge';
         $formParams = [];
         $queryParams = [];
@@ -353,21 +403,17 @@ public function mergeRequest($public_merge_input)
 
 
 
-        if ($multipart) {
-            $headers = $this->headerSelector->selectHeadersForMultipart(
-                ['application/json', '*/*']
-            );
-        } else {
-            $headers = $this->headerSelector->selectHeaders(
-                ['application/json', '*/*'],
-                ['application/json']
-            );
-        }
+        $headers = $this->headerSelector->selectHeaders(
+            ['application/json', '*/*', ],
+            $contentType,
+            $multipart
+        );
 
         // for model (json/xml)
         if (isset($public_merge_input)) {
-            if ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode(ObjectSerializer::sanitizeForSerialization($public_merge_input));
+            if (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the body
+                $httpBody = \GuzzleHttp\Utils::jsonEncode(ObjectSerializer::sanitizeForSerialization($public_merge_input));
             } else {
                 $httpBody = $public_merge_input;
             }
@@ -386,9 +432,9 @@ public function mergeRequest($public_merge_input)
                 // for HTTP post (form)
                 $httpBody = new MultipartStream($multipartContents);
 
-            } elseif ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode($formParams);
-
+            } elseif (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the form parameters
+                $httpBody = \GuzzleHttp\Utils::jsonEncode($formParams);
             } else {
                 // for HTTP post (form)
                 $httpBody = ObjectSerializer::buildQuery($formParams);
@@ -411,10 +457,11 @@ public function mergeRequest($public_merge_input)
             $headers
         );
 
+        $operationHost = $this->config->getHost();
         $query = ObjectSerializer::buildQuery($queryParams);
         return new Request(
             'POST',
-            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
+            $operationHost . $resourcePath . ($query ? "?{$query}" : ''),
             $headers,
             $httpBody
         );
diff --git a/codegen/Crm/Objects/Taxes/Api/SearchApi.php b/codegen/Crm/Objects/Taxes/Api/SearchApi.php
index e9286cfc..a0556771 100644
--- a/codegen/Crm/Objects/Taxes/Api/SearchApi.php
+++ b/codegen/Crm/Objects/Taxes/Api/SearchApi.php
@@ -16,7 +16,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -69,6 +69,13 @@ class SearchApi
      */
     protected $hostIndex;
 
+    /** @var string[] $contentTypes **/
+    public const contentTypes = [
+        'doSearch' => [
+            'application/json',
+        ],
+    ];
+
     /**
      * @param ClientInterface $client
      * @param Configuration   $config
@@ -119,14 +126,15 @@ public function getConfig()
      * Operation doSearch
      *
      * @param  \HubSpot\Client\Crm\Objects\Taxes\Model\PublicObjectSearchRequest $public_object_search_request public_object_search_request (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['doSearch'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Taxes\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Taxes\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return \HubSpot\Client\Crm\Objects\Taxes\Model\CollectionResponseWithTotalSimplePublicObjectForwardPaging|\HubSpot\Client\Crm\Objects\Taxes\Model\Error
      */
-    public function doSearch($public_object_search_request)
+    public function doSearch($public_object_search_request, string $contentType = self::contentTypes['doSearch'][0])
     {
-        list($response) = $this->doSearchWithHttpInfo($public_object_search_request);
+        list($response) = $this->doSearchWithHttpInfo($public_object_search_request, $contentType);
         return $response;
     }
 
@@ -134,14 +142,15 @@ public function doSearch($public_object_search_request)
      * Operation doSearchWithHttpInfo
      *
      * @param  \HubSpot\Client\Crm\Objects\Taxes\Model\PublicObjectSearchRequest $public_object_search_request (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['doSearch'] to see the possible values for this operation
      *
-     * @throws \HubSpot\Client\Crm\Objects\Taxes\ApiException on non-2xx response
+     * @throws \HubSpot\Client\Crm\Objects\Taxes\ApiException on non-2xx response or if the response body is not in the expected format
      * @throws \InvalidArgumentException
      * @return array of \HubSpot\Client\Crm\Objects\Taxes\Model\CollectionResponseWithTotalSimplePublicObjectForwardPaging|\HubSpot\Client\Crm\Objects\Taxes\Model\Error, HTTP status code, HTTP response headers (array of strings)
      */
-    public function doSearchWithHttpInfo($public_object_search_request)
+    public function doSearchWithHttpInfo($public_object_search_request, string $contentType = self::contentTypes['doSearch'][0])
     {
-        $request = $this->doSearchRequest($public_object_search_request);
+        $request = $this->doSearchRequest($public_object_search_request, $contentType);
 
         try {
             $options = $this->createHttpClientOption();
@@ -185,7 +194,19 @@ public function doSearchWithHttpInfo($public_object_search_request)
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Taxes\Model\CollectionResponseWithTotalSimplePublicObjectForwardPaging' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -200,7 +221,19 @@ public function doSearchWithHttpInfo($public_object_search_request)
                     } else {
                         $content = (string) $response->getBody();
                         if ('\HubSpot\Client\Crm\Objects\Taxes\Model\Error' !== 'string') {
-                            $content = json_decode($content);
+                            try {
+                                $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                            } catch (\JsonException $exception) {
+                                throw new ApiException(
+                                    sprintf(
+                                        'Error JSON decoding server response (%s)',
+                                        $request->getUri()
+                                    ),
+                                    $statusCode,
+                                    $response->getHeaders(),
+                                    $content
+                                );
+                            }
                         }
                     }
 
@@ -217,7 +250,19 @@ public function doSearchWithHttpInfo($public_object_search_request)
             } else {
                 $content = (string) $response->getBody();
                 if ($returnType !== 'string') {
-                    $content = json_decode($content);
+                    try {
+                        $content = json_decode($content, false, 512, JSON_THROW_ON_ERROR);
+                    } catch (\JsonException $exception) {
+                        throw new ApiException(
+                            sprintf(
+                                'Error JSON decoding server response (%s)',
+                                $request->getUri()
+                            ),
+                            $statusCode,
+                            $response->getHeaders(),
+                            $content
+                        );
+                    }
                 }
             }
 
@@ -254,13 +299,14 @@ public function doSearchWithHttpInfo($public_object_search_request)
      * Operation doSearchAsync
      *
      * @param  \HubSpot\Client\Crm\Objects\Taxes\Model\PublicObjectSearchRequest $public_object_search_request (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['doSearch'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function doSearchAsync($public_object_search_request)
+    public function doSearchAsync($public_object_search_request, string $contentType = self::contentTypes['doSearch'][0])
     {
-        return $this->doSearchAsyncWithHttpInfo($public_object_search_request)
+        return $this->doSearchAsyncWithHttpInfo($public_object_search_request, $contentType)
             ->then(
                 function ($response) {
                     return $response[0];
@@ -272,14 +318,15 @@ function ($response) {
      * Operation doSearchAsyncWithHttpInfo
      *
      * @param  \HubSpot\Client\Crm\Objects\Taxes\Model\PublicObjectSearchRequest $public_object_search_request (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['doSearch'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Promise\PromiseInterface
      */
-    public function doSearchAsyncWithHttpInfo($public_object_search_request)
+    public function doSearchAsyncWithHttpInfo($public_object_search_request, string $contentType = self::contentTypes['doSearch'][0])
     {
         $returnType = '\HubSpot\Client\Crm\Objects\Taxes\Model\CollectionResponseWithTotalSimplePublicObjectForwardPaging';
-        $request = $this->doSearchRequest($public_object_search_request);
+        $request = $this->doSearchRequest($public_object_search_request, $contentType);
 
         return $this->client
             ->sendAsync($request, $this->createHttpClientOption())
@@ -321,12 +368,14 @@ function ($exception) {
      * Create request for operation 'doSearch'
      *
      * @param  \HubSpot\Client\Crm\Objects\Taxes\Model\PublicObjectSearchRequest $public_object_search_request (required)
+     * @param  string $contentType The value for the Content-Type header. Check self::contentTypes['doSearch'] to see the possible values for this operation
      *
      * @throws \InvalidArgumentException
      * @return \GuzzleHttp\Psr7\Request
      */
-    public function doSearchRequest($public_object_search_request)
+    public function doSearchRequest($public_object_search_request, string $contentType = self::contentTypes['doSearch'][0])
     {
+
         // verify the required parameter 'public_object_search_request' is set
         if ($public_object_search_request === null || (is_array($public_object_search_request) && count($public_object_search_request) === 0)) {
             throw new \InvalidArgumentException(
@@ -334,6 +383,7 @@ public function doSearchRequest($public_object_search_request)
             );
         }
 
+
         $resourcePath = '/crm/v3/objects/taxes/search';
         $formParams = [];
         $queryParams = [];
@@ -345,21 +395,17 @@ public function doSearchRequest($public_object_search_request)
 
 
 
-        if ($multipart) {
-            $headers = $this->headerSelector->selectHeadersForMultipart(
-                ['application/json', '*/*']
-            );
-        } else {
-            $headers = $this->headerSelector->selectHeaders(
-                ['application/json', '*/*'],
-                ['application/json']
-            );
-        }
+        $headers = $this->headerSelector->selectHeaders(
+            ['application/json', '*/*', ],
+            $contentType,
+            $multipart
+        );
 
         // for model (json/xml)
         if (isset($public_object_search_request)) {
-            if ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode(ObjectSerializer::sanitizeForSerialization($public_object_search_request));
+            if (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the body
+                $httpBody = \GuzzleHttp\Utils::jsonEncode(ObjectSerializer::sanitizeForSerialization($public_object_search_request));
             } else {
                 $httpBody = $public_object_search_request;
             }
@@ -378,9 +424,9 @@ public function doSearchRequest($public_object_search_request)
                 // for HTTP post (form)
                 $httpBody = new MultipartStream($multipartContents);
 
-            } elseif ($headers['Content-Type'] === 'application/json') {
-                $httpBody = \GuzzleHttp\json_encode($formParams);
-
+            } elseif (stripos($headers['Content-Type'], 'application/json') !== false) {
+                # if Content-Type contains "application/json", json_encode the form parameters
+                $httpBody = \GuzzleHttp\Utils::jsonEncode($formParams);
             } else {
                 // for HTTP post (form)
                 $httpBody = ObjectSerializer::buildQuery($formParams);
@@ -403,10 +449,11 @@ public function doSearchRequest($public_object_search_request)
             $headers
         );
 
+        $operationHost = $this->config->getHost();
         $query = ObjectSerializer::buildQuery($queryParams);
         return new Request(
             'POST',
-            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
+            $operationHost . $resourcePath . ($query ? "?{$query}" : ''),
             $headers,
             $httpBody
         );
diff --git a/codegen/Crm/Objects/Taxes/ApiException.php b/codegen/Crm/Objects/Taxes/ApiException.php
index 598053ed..76838fed 100644
--- a/codegen/Crm/Objects/Taxes/ApiException.php
+++ b/codegen/Crm/Objects/Taxes/ApiException.php
@@ -16,7 +16,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
diff --git a/codegen/Crm/Objects/Taxes/Configuration.php b/codegen/Crm/Objects/Taxes/Configuration.php
index 8876e47a..719532eb 100644
--- a/codegen/Crm/Objects/Taxes/Configuration.php
+++ b/codegen/Crm/Objects/Taxes/Configuration.php
@@ -16,7 +16,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -209,7 +209,7 @@ public function getAccessToken()
     /**
      * Sets boolean format for query string.
      *
-     * @param string $booleanFormatForQueryString Boolean format for query string
+     * @param string $booleanFormat Boolean format for query string
      *
      * @return $this
      */
@@ -479,32 +479,31 @@ public function getHostSettings()
     }
 
     /**
-     * Returns URL based on the index and variables
-     *
-     * @param int        $index     index of the host settings
-     * @param array|null $variables hash of variable and the corresponding value (optional)
-     * @return string URL based on host settings
-     */
-    public function getHostFromSettings($index, $variables = null)
+    * Returns URL based on host settings, index and variables
+    *
+    * @param array      $hostSettings array of host settings, generated from getHostSettings() or equivalent from the API clients
+    * @param int        $hostIndex    index of the host settings
+    * @param array|null $variables    hash of variable and the corresponding value (optional)
+    * @return string URL based on host settings
+    */
+    public static function getHostString(array $hostSettings, $hostIndex, array $variables = null)
     {
         if (null === $variables) {
             $variables = [];
         }
 
-        $hosts = $this->getHostSettings();
-
         // check array index out of bound
-        if ($index < 0 || $index >= sizeof($hosts)) {
-            throw new \InvalidArgumentException("Invalid index $index when selecting the host. Must be less than ".sizeof($hosts));
+        if ($hostIndex < 0 || $hostIndex >= count($hostSettings)) {
+            throw new \InvalidArgumentException("Invalid index $hostIndex when selecting the host. Must be less than ".count($hostSettings));
         }
 
-        $host = $hosts[$index];
+        $host = $hostSettings[$hostIndex];
         $url = $host["url"];
 
         // go through variable and assign a value
         foreach ($host["variables"] ?? [] as $name => $variable) {
             if (array_key_exists($name, $variables)) { // check to see if it's in the variables provided by the user
-                if (in_array($variables[$name], $variable["enum_values"], true)) { // check to see if the value is in the enum
+                if (!isset($variable['enum_values']) || in_array($variables[$name], $variable["enum_values"], true)) { // check to see if the value is in the enum
                     $url = str_replace("{".$name."}", $variables[$name], $url);
                 } else {
                     throw new \InvalidArgumentException("The variable `$name` in the host URL has invalid value ".$variables[$name].". Must be ".join(',', $variable["enum_values"]).".");
@@ -517,4 +516,16 @@ public function getHostFromSettings($index, $variables = null)
 
         return $url;
     }
+
+    /**
+     * Returns URL based on the index and variables
+     *
+     * @param int        $index     index of the host settings
+     * @param array|null $variables hash of variable and the corresponding value (optional)
+     * @return string URL based on host settings
+     */
+    public function getHostFromSettings($index, $variables = null)
+    {
+        return self::getHostString($this->getHostSettings(), $index, $variables);
+    }
 }
diff --git a/codegen/Crm/Objects/Taxes/HeaderSelector.php b/codegen/Crm/Objects/Taxes/HeaderSelector.php
index a51e5530..2903e2e9 100644
--- a/codegen/Crm/Objects/Taxes/HeaderSelector.php
+++ b/codegen/Crm/Objects/Taxes/HeaderSelector.php
@@ -1,6 +1,6 @@
 <?php
 /**
- * ApiException
+ * HeaderSelector
  * PHP version 7.4
  *
  * @category Class
@@ -16,7 +16,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -27,10 +27,8 @@
 
 namespace HubSpot\Client\Crm\Objects\Taxes;
 
-use \Exception;
-
 /**
- * ApiException Class Doc Comment
+ * HeaderSelector Class Doc Comment
  *
  * @category Class
  * @package  HubSpot\Client\Crm\Objects\Taxes
@@ -41,10 +39,11 @@ class HeaderSelector
 {
     /**
      * @param string[] $accept
-     * @param string[] $contentTypes
-     * @return array
+     * @param string   $contentType
+     * @param bool     $isMultipart
+     * @return string[]
      */
-    public function selectHeaders($accept, $contentTypes)
+    public function selectHeaders(array $accept, string $contentType, bool $isMultipart): array
     {
         $headers = [];
 
@@ -53,55 +52,194 @@ public function selectHeaders($accept, $contentTypes)
             $headers['Accept'] = $accept;
         }
 
-        $headers['Content-Type'] = $this->selectContentTypeHeader($contentTypes);
-        return $headers;
-    }
+        if (!$isMultipart) {
+            if($contentType === '') {
+                $contentType = 'application/json';
+            }
 
-    /**
-     * @param string[] $accept
-     * @return array
-     */
-    public function selectHeadersForMultipart($accept)
-    {
-        $headers = $this->selectHeaders($accept, []);
+            $headers['Content-Type'] = $contentType;
+        }
 
-        unset($headers['Content-Type']);
         return $headers;
     }
 
     /**
-     * Return the header 'Accept' based on an array of Accept provided
+     * Return the header 'Accept' based on an array of Accept provided.
      *
      * @param string[] $accept Array of header
      *
      * @return null|string Accept (e.g. application/json)
      */
-    private function selectAcceptHeader($accept)
+    private function selectAcceptHeader(array $accept): ?string
     {
-        if (count($accept) === 0 || (count($accept) === 1 && $accept[0] === '')) {
+        # filter out empty entries
+        $accept = array_filter($accept);
+
+        if (count($accept) === 0) {
             return null;
-        } elseif ($jsonAccept = preg_grep('~(?i)^(application/json|[^;/ \t]+/[^;/ \t]+[+]json)[ \t]*(;.*)?$~', $accept)) {
-            return implode(',', $jsonAccept);
-        } else {
+        }
+
+        # If there's only one Accept header, just use it
+        if (count($accept) === 1) {
+            return reset($accept);
+        }
+
+        # If none of the available Accept headers is of type "json", then just use all them
+        $headersWithJson = preg_grep('~(?i)^(application/json|[^;/ \t]+/[^;/ \t]+[+]json)[ \t]*(;.*)?$~', $accept);
+        if (count($headersWithJson) === 0) {
             return implode(',', $accept);
         }
+
+        # If we got here, then we need add quality values (weight), as described in IETF RFC 9110, Items 12.4.2/12.5.1,
+        # to give the highest priority to json-like headers - recalculating the existing ones, if needed
+        return $this->getAcceptHeaderWithAdjustedWeight($accept, $headersWithJson);
+    }
+
+    /**
+    * Create an Accept header string from the given "Accept" headers array, recalculating all weights
+    *
+    * @param string[] $accept            Array of Accept Headers
+    * @param string[] $headersWithJson   Array of Accept Headers of type "json"
+    *
+    * @return string "Accept" Header (e.g. "application/json, text/html; q=0.9")
+    */
+    private function getAcceptHeaderWithAdjustedWeight(array $accept, array $headersWithJson): string
+    {
+        $processedHeaders = [
+            'withApplicationJson' => [],
+            'withJson' => [],
+            'withoutJson' => [],
+        ];
+
+        foreach ($accept as $header) {
+
+            $headerData = $this->getHeaderAndWeight($header);
+
+            if (stripos($headerData['header'], 'application/json') === 0) {
+                $processedHeaders['withApplicationJson'][] = $headerData;
+            } elseif (in_array($header, $headersWithJson, true)) {
+                $processedHeaders['withJson'][] = $headerData;
+            } else {
+                $processedHeaders['withoutJson'][] = $headerData;
+            }
+        }
+
+        $acceptHeaders = [];
+        $currentWeight = 1000;
+
+        $hasMoreThan28Headers = count($accept) > 28;
+
+        foreach($processedHeaders as $headers) {
+            if (count($headers) > 0) {
+                $acceptHeaders[] = $this->adjustWeight($headers, $currentWeight, $hasMoreThan28Headers);
+            }
+        }
+
+        $acceptHeaders = array_merge(...$acceptHeaders);
+
+        return implode(',', $acceptHeaders);
     }
 
     /**
-     * Return the content type based on an array of content-type provided
+     * Given an Accept header, returns an associative array splitting the header and its weight
      *
-     * @param string[] $contentType Array fo content-type
+     * @param string $header "Accept" Header
      *
-     * @return string Content-Type (e.g. application/json)
+     * @return array with the header and its weight
      */
-    private function selectContentTypeHeader($contentType)
+    private function getHeaderAndWeight(string $header): array
     {
-        if (count($contentType) === 0 || (count($contentType) === 1 && $contentType[0] === '')) {
-            return 'application/json';
-        } elseif (preg_grep("/application\/json/i", $contentType)) {
-            return 'application/json';
+        # matches headers with weight, splitting the header and the weight in $outputArray
+        if (preg_match('/(.*);\s*q=(1(?:\.0+)?|0\.\d+)$/', $header, $outputArray) === 1) {
+            $headerData = [
+                'header' => $outputArray[1],
+                'weight' => (int)($outputArray[2] * 1000),
+            ];
         } else {
-            return implode(',', $contentType);
+            $headerData = [
+                'header' => trim($header),
+                'weight' => 1000,
+            ];
+        }
+
+        return $headerData;
+    }
+
+    /**
+     * @param array[] $headers
+     * @param float   $currentWeight
+     * @param bool    $hasMoreThan28Headers
+     * @return string[] array of adjusted "Accept" headers
+     */
+    private function adjustWeight(array $headers, float &$currentWeight, bool $hasMoreThan28Headers): array
+    {
+        usort($headers, function (array $a, array $b) {
+            return $b['weight'] - $a['weight'];
+        });
+
+        $acceptHeaders = [];
+        foreach ($headers as $index => $header) {
+            if($index > 0 && $headers[$index - 1]['weight'] > $header['weight'])
+            {
+                $currentWeight = $this->getNextWeight($currentWeight, $hasMoreThan28Headers);
+            }
+
+            $weight = $currentWeight;
+
+            $acceptHeaders[] = $this->buildAcceptHeader($header['header'], $weight);
+        }
+
+        $currentWeight = $this->getNextWeight($currentWeight, $hasMoreThan28Headers);
+
+        return $acceptHeaders;
+    }
+
+    /**
+     * @param string $header
+     * @param int    $weight
+     * @return string
+     */
+    private function buildAcceptHeader(string $header, int $weight): string
+    {
+        if($weight === 1000) {
+            return $header;
+        }
+
+        return trim($header, '; ') . ';q=' . rtrim(sprintf('%0.3f', $weight / 1000), '0');
+    }
+
+    /**
+     * Calculate the next weight, based on the current one.
+     *
+     * If there are less than 28 "Accept" headers, the weights will be decreased by 1 on its highest significant digit, using the
+     * following formula:
+     *
+     *    next weight = current weight - 10 ^ (floor(log(current weight - 1)))
+     *
+     *    ( current weight minus ( 10 raised to the power of ( floor of (log to the base 10 of ( current weight minus 1 ) ) ) ) )
+     *
+     * Starting from 1000, this generates the following series:
+     *
+     * 1000, 900, 800, 700, 600, 500, 400, 300, 200, 100, 90, 80, 70, 60, 50, 40, 30, 20, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1
+     *
+     * The resulting quality codes are closer to the average "normal" usage of them (like "q=0.9", "q=0.8" and so on), but it only works
+     * if there is a maximum of 28 "Accept" headers. If we have more than that (which is extremely unlikely), then we fall back to a 1-by-1
+     * decrement rule, which will result in quality codes like "q=0.999", "q=0.998" etc.
+     *
+     * @param int  $currentWeight varying from 1 to 1000 (will be divided by 1000 to build the quality value)
+     * @param bool $hasMoreThan28Headers
+     * @return int
+     */
+    public function getNextWeight(int $currentWeight, bool $hasMoreThan28Headers): int
+    {
+        if ($currentWeight <= 1) {
+            return 1;
+        }
+
+        if ($hasMoreThan28Headers) {
+            return $currentWeight - 1;
         }
+
+        return $currentWeight - 10 ** floor( log10($currentWeight - 1) );
     }
 }
diff --git a/codegen/Crm/Objects/Taxes/Model/AssociatedId.php b/codegen/Crm/Objects/Taxes/Model/AssociatedId.php
index bf6753f8..d62ee587 100644
--- a/codegen/Crm/Objects/Taxes/Model/AssociatedId.php
+++ b/codegen/Crm/Objects/Taxes/Model/AssociatedId.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -73,6 +73,23 @@ class AssociatedId implements ModelInterface, ArrayAccess, \JsonSerializable
         'type' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'id' => false,
+        'type' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -93,6 +110,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -181,8 +250,26 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['id'] = $data['id'] ?? null;
-        $this->container['type'] = $data['type'] ?? null;
+        $this->setIfExists('id', $data ?? [], null);
+        $this->setIfExists('type', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -234,6 +321,9 @@ public function getId()
      */
     public function setId($id)
     {
+        if (is_null($id)) {
+            throw new \InvalidArgumentException('non-nullable id cannot be null');
+        }
         $this->container['id'] = $id;
 
         return $this;
@@ -258,6 +348,9 @@ public function getType()
      */
     public function setType($type)
     {
+        if (is_null($type)) {
+            throw new \InvalidArgumentException('non-nullable type cannot be null');
+        }
         $this->container['type'] = $type;
 
         return $this;
diff --git a/codegen/Crm/Objects/Taxes/Model/AssociationSpec.php b/codegen/Crm/Objects/Taxes/Model/AssociationSpec.php
index 672b45db..51d0dae1 100644
--- a/codegen/Crm/Objects/Taxes/Model/AssociationSpec.php
+++ b/codegen/Crm/Objects/Taxes/Model/AssociationSpec.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -73,6 +73,23 @@ class AssociationSpec implements ModelInterface, ArrayAccess, \JsonSerializable
         'association_type_id' => 'int32'
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'association_category' => false,
+        'association_type_id' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -93,6 +110,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -198,8 +267,26 @@ public function getAssociationCategoryAllowableValues()
      */
     public function __construct(array $data = null)
     {
-        $this->container['association_category'] = $data['association_category'] ?? null;
-        $this->container['association_type_id'] = $data['association_type_id'] ?? null;
+        $this->setIfExists('association_category', $data ?? [], null);
+        $this->setIfExists('association_type_id', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -260,6 +347,9 @@ public function getAssociationCategory()
      */
     public function setAssociationCategory($association_category)
     {
+        if (is_null($association_category)) {
+            throw new \InvalidArgumentException('non-nullable association_category cannot be null');
+        }
         $allowedValues = $this->getAssociationCategoryAllowableValues();
         if (!in_array($association_category, $allowedValues, true)) {
             throw new \InvalidArgumentException(
@@ -294,6 +384,9 @@ public function getAssociationTypeId()
      */
     public function setAssociationTypeId($association_type_id)
     {
+        if (is_null($association_type_id)) {
+            throw new \InvalidArgumentException('non-nullable association_type_id cannot be null');
+        }
         $this->container['association_type_id'] = $association_type_id;
 
         return $this;
diff --git a/codegen/Crm/Objects/Taxes/Model/BatchInputSimplePublicObjectBatchInput.php b/codegen/Crm/Objects/Taxes/Model/BatchInputSimplePublicObjectBatchInput.php
index dc4c555a..d0caeaa2 100644
--- a/codegen/Crm/Objects/Taxes/Model/BatchInputSimplePublicObjectBatchInput.php
+++ b/codegen/Crm/Objects/Taxes/Model/BatchInputSimplePublicObjectBatchInput.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -71,6 +71,22 @@ class BatchInputSimplePublicObjectBatchInput implements ModelInterface, ArrayAcc
         'inputs' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'inputs' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -91,6 +107,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -176,7 +244,25 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['inputs'] = $data['inputs'] ?? null;
+        $this->setIfExists('inputs', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -225,6 +311,9 @@ public function getInputs()
      */
     public function setInputs($inputs)
     {
+        if (is_null($inputs)) {
+            throw new \InvalidArgumentException('non-nullable inputs cannot be null');
+        }
         $this->container['inputs'] = $inputs;
 
         return $this;
diff --git a/codegen/Crm/Objects/Taxes/Model/BatchInputSimplePublicObjectId.php b/codegen/Crm/Objects/Taxes/Model/BatchInputSimplePublicObjectId.php
index 9de7f621..2badeaf1 100644
--- a/codegen/Crm/Objects/Taxes/Model/BatchInputSimplePublicObjectId.php
+++ b/codegen/Crm/Objects/Taxes/Model/BatchInputSimplePublicObjectId.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -71,6 +71,22 @@ class BatchInputSimplePublicObjectId implements ModelInterface, ArrayAccess, \Js
         'inputs' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'inputs' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -91,6 +107,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -176,7 +244,25 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['inputs'] = $data['inputs'] ?? null;
+        $this->setIfExists('inputs', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -225,6 +311,9 @@ public function getInputs()
      */
     public function setInputs($inputs)
     {
+        if (is_null($inputs)) {
+            throw new \InvalidArgumentException('non-nullable inputs cannot be null');
+        }
         $this->container['inputs'] = $inputs;
 
         return $this;
diff --git a/codegen/Crm/Objects/Taxes/Model/BatchInputSimplePublicObjectInputForCreate.php b/codegen/Crm/Objects/Taxes/Model/BatchInputSimplePublicObjectInputForCreate.php
index 8a417869..2654474c 100644
--- a/codegen/Crm/Objects/Taxes/Model/BatchInputSimplePublicObjectInputForCreate.php
+++ b/codegen/Crm/Objects/Taxes/Model/BatchInputSimplePublicObjectInputForCreate.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -71,6 +71,22 @@ class BatchInputSimplePublicObjectInputForCreate implements ModelInterface, Arra
         'inputs' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'inputs' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -91,6 +107,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -176,7 +244,25 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['inputs'] = $data['inputs'] ?? null;
+        $this->setIfExists('inputs', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -225,6 +311,9 @@ public function getInputs()
      */
     public function setInputs($inputs)
     {
+        if (is_null($inputs)) {
+            throw new \InvalidArgumentException('non-nullable inputs cannot be null');
+        }
         $this->container['inputs'] = $inputs;
 
         return $this;
diff --git a/codegen/Crm/Objects/Taxes/Model/BatchReadInputSimplePublicObjectId.php b/codegen/Crm/Objects/Taxes/Model/BatchReadInputSimplePublicObjectId.php
index 3fe82a72..e73ece96 100644
--- a/codegen/Crm/Objects/Taxes/Model/BatchReadInputSimplePublicObjectId.php
+++ b/codegen/Crm/Objects/Taxes/Model/BatchReadInputSimplePublicObjectId.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -77,6 +77,25 @@ class BatchReadInputSimplePublicObjectId implements ModelInterface, ArrayAccess,
         'properties' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'properties_with_history' => false,
+        'id_property' => false,
+        'inputs' => false,
+        'properties' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -97,6 +116,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -191,10 +262,28 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['properties_with_history'] = $data['properties_with_history'] ?? null;
-        $this->container['id_property'] = $data['id_property'] ?? null;
-        $this->container['inputs'] = $data['inputs'] ?? null;
-        $this->container['properties'] = $data['properties'] ?? null;
+        $this->setIfExists('properties_with_history', $data ?? [], null);
+        $this->setIfExists('id_property', $data ?? [], null);
+        $this->setIfExists('inputs', $data ?? [], null);
+        $this->setIfExists('properties', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -249,6 +338,9 @@ public function getPropertiesWithHistory()
      */
     public function setPropertiesWithHistory($properties_with_history)
     {
+        if (is_null($properties_with_history)) {
+            throw new \InvalidArgumentException('non-nullable properties_with_history cannot be null');
+        }
         $this->container['properties_with_history'] = $properties_with_history;
 
         return $this;
@@ -273,6 +365,9 @@ public function getIdProperty()
      */
     public function setIdProperty($id_property)
     {
+        if (is_null($id_property)) {
+            throw new \InvalidArgumentException('non-nullable id_property cannot be null');
+        }
         $this->container['id_property'] = $id_property;
 
         return $this;
@@ -297,6 +392,9 @@ public function getInputs()
      */
     public function setInputs($inputs)
     {
+        if (is_null($inputs)) {
+            throw new \InvalidArgumentException('non-nullable inputs cannot be null');
+        }
         $this->container['inputs'] = $inputs;
 
         return $this;
@@ -321,6 +419,9 @@ public function getProperties()
      */
     public function setProperties($properties)
     {
+        if (is_null($properties)) {
+            throw new \InvalidArgumentException('non-nullable properties cannot be null');
+        }
         $this->container['properties'] = $properties;
 
         return $this;
diff --git a/codegen/Crm/Objects/Taxes/Model/BatchResponseSimplePublicObject.php b/codegen/Crm/Objects/Taxes/Model/BatchResponseSimplePublicObject.php
index 9c5f0401..89e53862 100644
--- a/codegen/Crm/Objects/Taxes/Model/BatchResponseSimplePublicObject.php
+++ b/codegen/Crm/Objects/Taxes/Model/BatchResponseSimplePublicObject.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -81,6 +81,27 @@ class BatchResponseSimplePublicObject implements ModelInterface, ArrayAccess, \J
         'status' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'completed_at' => false,
+        'requested_at' => false,
+        'started_at' => false,
+        'links' => false,
+        'results' => false,
+        'status' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -101,6 +122,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -220,12 +293,30 @@ public function getStatusAllowableValues()
      */
     public function __construct(array $data = null)
     {
-        $this->container['completed_at'] = $data['completed_at'] ?? null;
-        $this->container['requested_at'] = $data['requested_at'] ?? null;
-        $this->container['started_at'] = $data['started_at'] ?? null;
-        $this->container['links'] = $data['links'] ?? null;
-        $this->container['results'] = $data['results'] ?? null;
-        $this->container['status'] = $data['status'] ?? null;
+        $this->setIfExists('completed_at', $data ?? [], null);
+        $this->setIfExists('requested_at', $data ?? [], null);
+        $this->setIfExists('started_at', $data ?? [], null);
+        $this->setIfExists('links', $data ?? [], null);
+        $this->setIfExists('results', $data ?? [], null);
+        $this->setIfExists('status', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -292,6 +383,9 @@ public function getCompletedAt()
      */
     public function setCompletedAt($completed_at)
     {
+        if (is_null($completed_at)) {
+            throw new \InvalidArgumentException('non-nullable completed_at cannot be null');
+        }
         $this->container['completed_at'] = $completed_at;
 
         return $this;
@@ -316,6 +410,9 @@ public function getRequestedAt()
      */
     public function setRequestedAt($requested_at)
     {
+        if (is_null($requested_at)) {
+            throw new \InvalidArgumentException('non-nullable requested_at cannot be null');
+        }
         $this->container['requested_at'] = $requested_at;
 
         return $this;
@@ -340,6 +437,9 @@ public function getStartedAt()
      */
     public function setStartedAt($started_at)
     {
+        if (is_null($started_at)) {
+            throw new \InvalidArgumentException('non-nullable started_at cannot be null');
+        }
         $this->container['started_at'] = $started_at;
 
         return $this;
@@ -364,6 +464,9 @@ public function getLinks()
      */
     public function setLinks($links)
     {
+        if (is_null($links)) {
+            throw new \InvalidArgumentException('non-nullable links cannot be null');
+        }
         $this->container['links'] = $links;
 
         return $this;
@@ -388,6 +491,9 @@ public function getResults()
      */
     public function setResults($results)
     {
+        if (is_null($results)) {
+            throw new \InvalidArgumentException('non-nullable results cannot be null');
+        }
         $this->container['results'] = $results;
 
         return $this;
@@ -412,6 +518,9 @@ public function getStatus()
      */
     public function setStatus($status)
     {
+        if (is_null($status)) {
+            throw new \InvalidArgumentException('non-nullable status cannot be null');
+        }
         $allowedValues = $this->getStatusAllowableValues();
         if (!in_array($status, $allowedValues, true)) {
             throw new \InvalidArgumentException(
diff --git a/codegen/Crm/Objects/Taxes/Model/BatchResponseSimplePublicObjectWithErrors.php b/codegen/Crm/Objects/Taxes/Model/BatchResponseSimplePublicObjectWithErrors.php
index c65ea30b..c554f136 100644
--- a/codegen/Crm/Objects/Taxes/Model/BatchResponseSimplePublicObjectWithErrors.php
+++ b/codegen/Crm/Objects/Taxes/Model/BatchResponseSimplePublicObjectWithErrors.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -85,6 +85,29 @@ class BatchResponseSimplePublicObjectWithErrors implements ModelInterface, Array
         'status' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'completed_at' => false,
+        'num_errors' => false,
+        'requested_at' => false,
+        'started_at' => false,
+        'links' => false,
+        'results' => false,
+        'errors' => false,
+        'status' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -105,6 +128,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -230,14 +305,32 @@ public function getStatusAllowableValues()
      */
     public function __construct(array $data = null)
     {
-        $this->container['completed_at'] = $data['completed_at'] ?? null;
-        $this->container['num_errors'] = $data['num_errors'] ?? null;
-        $this->container['requested_at'] = $data['requested_at'] ?? null;
-        $this->container['started_at'] = $data['started_at'] ?? null;
-        $this->container['links'] = $data['links'] ?? null;
-        $this->container['results'] = $data['results'] ?? null;
-        $this->container['errors'] = $data['errors'] ?? null;
-        $this->container['status'] = $data['status'] ?? null;
+        $this->setIfExists('completed_at', $data ?? [], null);
+        $this->setIfExists('num_errors', $data ?? [], null);
+        $this->setIfExists('requested_at', $data ?? [], null);
+        $this->setIfExists('started_at', $data ?? [], null);
+        $this->setIfExists('links', $data ?? [], null);
+        $this->setIfExists('results', $data ?? [], null);
+        $this->setIfExists('errors', $data ?? [], null);
+        $this->setIfExists('status', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -304,6 +397,9 @@ public function getCompletedAt()
      */
     public function setCompletedAt($completed_at)
     {
+        if (is_null($completed_at)) {
+            throw new \InvalidArgumentException('non-nullable completed_at cannot be null');
+        }
         $this->container['completed_at'] = $completed_at;
 
         return $this;
@@ -328,6 +424,9 @@ public function getNumErrors()
      */
     public function setNumErrors($num_errors)
     {
+        if (is_null($num_errors)) {
+            throw new \InvalidArgumentException('non-nullable num_errors cannot be null');
+        }
         $this->container['num_errors'] = $num_errors;
 
         return $this;
@@ -352,6 +451,9 @@ public function getRequestedAt()
      */
     public function setRequestedAt($requested_at)
     {
+        if (is_null($requested_at)) {
+            throw new \InvalidArgumentException('non-nullable requested_at cannot be null');
+        }
         $this->container['requested_at'] = $requested_at;
 
         return $this;
@@ -376,6 +478,9 @@ public function getStartedAt()
      */
     public function setStartedAt($started_at)
     {
+        if (is_null($started_at)) {
+            throw new \InvalidArgumentException('non-nullable started_at cannot be null');
+        }
         $this->container['started_at'] = $started_at;
 
         return $this;
@@ -400,6 +505,9 @@ public function getLinks()
      */
     public function setLinks($links)
     {
+        if (is_null($links)) {
+            throw new \InvalidArgumentException('non-nullable links cannot be null');
+        }
         $this->container['links'] = $links;
 
         return $this;
@@ -424,6 +532,9 @@ public function getResults()
      */
     public function setResults($results)
     {
+        if (is_null($results)) {
+            throw new \InvalidArgumentException('non-nullable results cannot be null');
+        }
         $this->container['results'] = $results;
 
         return $this;
@@ -448,6 +559,9 @@ public function getErrors()
      */
     public function setErrors($errors)
     {
+        if (is_null($errors)) {
+            throw new \InvalidArgumentException('non-nullable errors cannot be null');
+        }
         $this->container['errors'] = $errors;
 
         return $this;
@@ -472,6 +586,9 @@ public function getStatus()
      */
     public function setStatus($status)
     {
+        if (is_null($status)) {
+            throw new \InvalidArgumentException('non-nullable status cannot be null');
+        }
         $allowedValues = $this->getStatusAllowableValues();
         if (!in_array($status, $allowedValues, true)) {
             throw new \InvalidArgumentException(
diff --git a/codegen/Crm/Objects/Taxes/Model/CollectionResponseAssociatedId.php b/codegen/Crm/Objects/Taxes/Model/CollectionResponseAssociatedId.php
index 1057211c..fd914192 100644
--- a/codegen/Crm/Objects/Taxes/Model/CollectionResponseAssociatedId.php
+++ b/codegen/Crm/Objects/Taxes/Model/CollectionResponseAssociatedId.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -73,6 +73,23 @@ class CollectionResponseAssociatedId implements ModelInterface, ArrayAccess, \Js
         'results' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'paging' => false,
+        'results' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -93,6 +110,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -181,8 +250,26 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['paging'] = $data['paging'] ?? null;
-        $this->container['results'] = $data['results'] ?? null;
+        $this->setIfExists('paging', $data ?? [], null);
+        $this->setIfExists('results', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -231,6 +318,9 @@ public function getPaging()
      */
     public function setPaging($paging)
     {
+        if (is_null($paging)) {
+            throw new \InvalidArgumentException('non-nullable paging cannot be null');
+        }
         $this->container['paging'] = $paging;
 
         return $this;
@@ -255,6 +345,9 @@ public function getResults()
      */
     public function setResults($results)
     {
+        if (is_null($results)) {
+            throw new \InvalidArgumentException('non-nullable results cannot be null');
+        }
         $this->container['results'] = $results;
 
         return $this;
diff --git a/codegen/Crm/Objects/Taxes/Model/CollectionResponseSimplePublicObjectWithAssociationsForwardPaging.php b/codegen/Crm/Objects/Taxes/Model/CollectionResponseSimplePublicObjectWithAssociationsForwardPaging.php
index bbf9bbdc..1638c0c8 100644
--- a/codegen/Crm/Objects/Taxes/Model/CollectionResponseSimplePublicObjectWithAssociationsForwardPaging.php
+++ b/codegen/Crm/Objects/Taxes/Model/CollectionResponseSimplePublicObjectWithAssociationsForwardPaging.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -73,6 +73,23 @@ class CollectionResponseSimplePublicObjectWithAssociationsForwardPaging implemen
         'results' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'paging' => false,
+        'results' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -93,6 +110,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -181,8 +250,26 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['paging'] = $data['paging'] ?? null;
-        $this->container['results'] = $data['results'] ?? null;
+        $this->setIfExists('paging', $data ?? [], null);
+        $this->setIfExists('results', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -231,6 +318,9 @@ public function getPaging()
      */
     public function setPaging($paging)
     {
+        if (is_null($paging)) {
+            throw new \InvalidArgumentException('non-nullable paging cannot be null');
+        }
         $this->container['paging'] = $paging;
 
         return $this;
@@ -255,6 +345,9 @@ public function getResults()
      */
     public function setResults($results)
     {
+        if (is_null($results)) {
+            throw new \InvalidArgumentException('non-nullable results cannot be null');
+        }
         $this->container['results'] = $results;
 
         return $this;
diff --git a/codegen/Crm/Objects/Taxes/Model/CollectionResponseWithTotalSimplePublicObjectForwardPaging.php b/codegen/Crm/Objects/Taxes/Model/CollectionResponseWithTotalSimplePublicObjectForwardPaging.php
index 0e947076..2e2a10d9 100644
--- a/codegen/Crm/Objects/Taxes/Model/CollectionResponseWithTotalSimplePublicObjectForwardPaging.php
+++ b/codegen/Crm/Objects/Taxes/Model/CollectionResponseWithTotalSimplePublicObjectForwardPaging.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -75,6 +75,24 @@ class CollectionResponseWithTotalSimplePublicObjectForwardPaging implements Mode
         'results' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'total' => false,
+        'paging' => false,
+        'results' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -95,6 +113,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -186,9 +256,27 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['total'] = $data['total'] ?? null;
-        $this->container['paging'] = $data['paging'] ?? null;
-        $this->container['results'] = $data['results'] ?? null;
+        $this->setIfExists('total', $data ?? [], null);
+        $this->setIfExists('paging', $data ?? [], null);
+        $this->setIfExists('results', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -240,6 +328,9 @@ public function getTotal()
      */
     public function setTotal($total)
     {
+        if (is_null($total)) {
+            throw new \InvalidArgumentException('non-nullable total cannot be null');
+        }
         $this->container['total'] = $total;
 
         return $this;
@@ -264,6 +355,9 @@ public function getPaging()
      */
     public function setPaging($paging)
     {
+        if (is_null($paging)) {
+            throw new \InvalidArgumentException('non-nullable paging cannot be null');
+        }
         $this->container['paging'] = $paging;
 
         return $this;
@@ -288,6 +382,9 @@ public function getResults()
      */
     public function setResults($results)
     {
+        if (is_null($results)) {
+            throw new \InvalidArgumentException('non-nullable results cannot be null');
+        }
         $this->container['results'] = $results;
 
         return $this;
diff --git a/codegen/Crm/Objects/Taxes/Model/Error.php b/codegen/Crm/Objects/Taxes/Model/Error.php
index 78643219..3a57f753 100644
--- a/codegen/Crm/Objects/Taxes/Model/Error.php
+++ b/codegen/Crm/Objects/Taxes/Model/Error.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -83,6 +83,28 @@ class Error implements ModelInterface, ArrayAccess, \JsonSerializable
         'errors' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'sub_category' => false,
+        'context' => false,
+        'correlation_id' => false,
+        'links' => false,
+        'message' => false,
+        'category' => false,
+        'errors' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -103,6 +125,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -206,13 +280,31 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['sub_category'] = $data['sub_category'] ?? null;
-        $this->container['context'] = $data['context'] ?? null;
-        $this->container['correlation_id'] = $data['correlation_id'] ?? null;
-        $this->container['links'] = $data['links'] ?? null;
-        $this->container['message'] = $data['message'] ?? null;
-        $this->container['category'] = $data['category'] ?? null;
-        $this->container['errors'] = $data['errors'] ?? null;
+        $this->setIfExists('sub_category', $data ?? [], null);
+        $this->setIfExists('context', $data ?? [], null);
+        $this->setIfExists('correlation_id', $data ?? [], null);
+        $this->setIfExists('links', $data ?? [], null);
+        $this->setIfExists('message', $data ?? [], null);
+        $this->setIfExists('category', $data ?? [], null);
+        $this->setIfExists('errors', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -267,6 +359,9 @@ public function getSubCategory()
      */
     public function setSubCategory($sub_category)
     {
+        if (is_null($sub_category)) {
+            throw new \InvalidArgumentException('non-nullable sub_category cannot be null');
+        }
         $this->container['sub_category'] = $sub_category;
 
         return $this;
@@ -291,6 +386,9 @@ public function getContext()
      */
     public function setContext($context)
     {
+        if (is_null($context)) {
+            throw new \InvalidArgumentException('non-nullable context cannot be null');
+        }
         $this->container['context'] = $context;
 
         return $this;
@@ -315,6 +413,9 @@ public function getCorrelationId()
      */
     public function setCorrelationId($correlation_id)
     {
+        if (is_null($correlation_id)) {
+            throw new \InvalidArgumentException('non-nullable correlation_id cannot be null');
+        }
         $this->container['correlation_id'] = $correlation_id;
 
         return $this;
@@ -339,6 +440,9 @@ public function getLinks()
      */
     public function setLinks($links)
     {
+        if (is_null($links)) {
+            throw new \InvalidArgumentException('non-nullable links cannot be null');
+        }
         $this->container['links'] = $links;
 
         return $this;
@@ -363,6 +467,9 @@ public function getMessage()
      */
     public function setMessage($message)
     {
+        if (is_null($message)) {
+            throw new \InvalidArgumentException('non-nullable message cannot be null');
+        }
         $this->container['message'] = $message;
 
         return $this;
@@ -387,6 +494,9 @@ public function getCategory()
      */
     public function setCategory($category)
     {
+        if (is_null($category)) {
+            throw new \InvalidArgumentException('non-nullable category cannot be null');
+        }
         $this->container['category'] = $category;
 
         return $this;
@@ -411,6 +521,9 @@ public function getErrors()
      */
     public function setErrors($errors)
     {
+        if (is_null($errors)) {
+            throw new \InvalidArgumentException('non-nullable errors cannot be null');
+        }
         $this->container['errors'] = $errors;
 
         return $this;
diff --git a/codegen/Crm/Objects/Taxes/Model/ErrorDetail.php b/codegen/Crm/Objects/Taxes/Model/ErrorDetail.php
index b325a643..a8871f4a 100644
--- a/codegen/Crm/Objects/Taxes/Model/ErrorDetail.php
+++ b/codegen/Crm/Objects/Taxes/Model/ErrorDetail.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -79,6 +79,26 @@ class ErrorDetail implements ModelInterface, ArrayAccess, \JsonSerializable
         'message' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'sub_category' => false,
+        'code' => false,
+        'in' => false,
+        'context' => false,
+        'message' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -99,6 +119,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -196,11 +268,29 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['sub_category'] = $data['sub_category'] ?? null;
-        $this->container['code'] = $data['code'] ?? null;
-        $this->container['in'] = $data['in'] ?? null;
-        $this->container['context'] = $data['context'] ?? null;
-        $this->container['message'] = $data['message'] ?? null;
+        $this->setIfExists('sub_category', $data ?? [], null);
+        $this->setIfExists('code', $data ?? [], null);
+        $this->setIfExists('in', $data ?? [], null);
+        $this->setIfExists('context', $data ?? [], null);
+        $this->setIfExists('message', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -249,6 +339,9 @@ public function getSubCategory()
      */
     public function setSubCategory($sub_category)
     {
+        if (is_null($sub_category)) {
+            throw new \InvalidArgumentException('non-nullable sub_category cannot be null');
+        }
         $this->container['sub_category'] = $sub_category;
 
         return $this;
@@ -273,6 +366,9 @@ public function getCode()
      */
     public function setCode($code)
     {
+        if (is_null($code)) {
+            throw new \InvalidArgumentException('non-nullable code cannot be null');
+        }
         $this->container['code'] = $code;
 
         return $this;
@@ -297,6 +393,9 @@ public function getIn()
      */
     public function setIn($in)
     {
+        if (is_null($in)) {
+            throw new \InvalidArgumentException('non-nullable in cannot be null');
+        }
         $this->container['in'] = $in;
 
         return $this;
@@ -321,6 +420,9 @@ public function getContext()
      */
     public function setContext($context)
     {
+        if (is_null($context)) {
+            throw new \InvalidArgumentException('non-nullable context cannot be null');
+        }
         $this->container['context'] = $context;
 
         return $this;
@@ -345,6 +447,9 @@ public function getMessage()
      */
     public function setMessage($message)
     {
+        if (is_null($message)) {
+            throw new \InvalidArgumentException('non-nullable message cannot be null');
+        }
         $this->container['message'] = $message;
 
         return $this;
diff --git a/codegen/Crm/Objects/Taxes/Model/Filter.php b/codegen/Crm/Objects/Taxes/Model/Filter.php
index f2a980b9..76b541a0 100644
--- a/codegen/Crm/Objects/Taxes/Model/Filter.php
+++ b/codegen/Crm/Objects/Taxes/Model/Filter.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -79,6 +79,26 @@ class Filter implements ModelInterface, ArrayAccess, \JsonSerializable
         'operator' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'high_value' => false,
+        'property_name' => false,
+        'values' => false,
+        'value' => false,
+        'operator' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -99,6 +119,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -233,11 +305,29 @@ public function getOperatorAllowableValues()
      */
     public function __construct(array $data = null)
     {
-        $this->container['high_value'] = $data['high_value'] ?? null;
-        $this->container['property_name'] = $data['property_name'] ?? null;
-        $this->container['values'] = $data['values'] ?? null;
-        $this->container['value'] = $data['value'] ?? null;
-        $this->container['operator'] = $data['operator'] ?? null;
+        $this->setIfExists('high_value', $data ?? [], null);
+        $this->setIfExists('property_name', $data ?? [], null);
+        $this->setIfExists('values', $data ?? [], null);
+        $this->setIfExists('value', $data ?? [], null);
+        $this->setIfExists('operator', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -298,6 +388,9 @@ public function getHighValue()
      */
     public function setHighValue($high_value)
     {
+        if (is_null($high_value)) {
+            throw new \InvalidArgumentException('non-nullable high_value cannot be null');
+        }
         $this->container['high_value'] = $high_value;
 
         return $this;
@@ -322,6 +415,9 @@ public function getPropertyName()
      */
     public function setPropertyName($property_name)
     {
+        if (is_null($property_name)) {
+            throw new \InvalidArgumentException('non-nullable property_name cannot be null');
+        }
         $this->container['property_name'] = $property_name;
 
         return $this;
@@ -346,6 +442,9 @@ public function getValues()
      */
     public function setValues($values)
     {
+        if (is_null($values)) {
+            throw new \InvalidArgumentException('non-nullable values cannot be null');
+        }
         $this->container['values'] = $values;
 
         return $this;
@@ -370,6 +469,9 @@ public function getValue()
      */
     public function setValue($value)
     {
+        if (is_null($value)) {
+            throw new \InvalidArgumentException('non-nullable value cannot be null');
+        }
         $this->container['value'] = $value;
 
         return $this;
@@ -394,6 +496,9 @@ public function getOperator()
      */
     public function setOperator($operator)
     {
+        if (is_null($operator)) {
+            throw new \InvalidArgumentException('non-nullable operator cannot be null');
+        }
         $allowedValues = $this->getOperatorAllowableValues();
         if (!in_array($operator, $allowedValues, true)) {
             throw new \InvalidArgumentException(
diff --git a/codegen/Crm/Objects/Taxes/Model/FilterGroup.php b/codegen/Crm/Objects/Taxes/Model/FilterGroup.php
index eabfde6b..75f0efce 100644
--- a/codegen/Crm/Objects/Taxes/Model/FilterGroup.php
+++ b/codegen/Crm/Objects/Taxes/Model/FilterGroup.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -71,6 +71,22 @@ class FilterGroup implements ModelInterface, ArrayAccess, \JsonSerializable
         'filters' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'filters' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -91,6 +107,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -176,7 +244,25 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['filters'] = $data['filters'] ?? null;
+        $this->setIfExists('filters', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -225,6 +311,9 @@ public function getFilters()
      */
     public function setFilters($filters)
     {
+        if (is_null($filters)) {
+            throw new \InvalidArgumentException('non-nullable filters cannot be null');
+        }
         $this->container['filters'] = $filters;
 
         return $this;
diff --git a/codegen/Crm/Objects/Taxes/Model/ForwardPaging.php b/codegen/Crm/Objects/Taxes/Model/ForwardPaging.php
index 3136de2a..27b71e89 100644
--- a/codegen/Crm/Objects/Taxes/Model/ForwardPaging.php
+++ b/codegen/Crm/Objects/Taxes/Model/ForwardPaging.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -71,6 +71,22 @@ class ForwardPaging implements ModelInterface, ArrayAccess, \JsonSerializable
         'next' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'next' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -91,6 +107,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -176,7 +244,25 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['next'] = $data['next'] ?? null;
+        $this->setIfExists('next', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -222,6 +308,9 @@ public function getNext()
      */
     public function setNext($next)
     {
+        if (is_null($next)) {
+            throw new \InvalidArgumentException('non-nullable next cannot be null');
+        }
         $this->container['next'] = $next;
 
         return $this;
diff --git a/codegen/Crm/Objects/Taxes/Model/ModelInterface.php b/codegen/Crm/Objects/Taxes/Model/ModelInterface.php
index ce3fb0ae..084bdd44 100644
--- a/codegen/Crm/Objects/Taxes/Model/ModelInterface.php
+++ b/codegen/Crm/Objects/Taxes/Model/ModelInterface.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -92,4 +92,20 @@ public function listInvalidProperties();
      * @return bool
      */
     public function valid();
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool;
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool;
 }
diff --git a/codegen/Crm/Objects/Taxes/Model/NextPage.php b/codegen/Crm/Objects/Taxes/Model/NextPage.php
index 3decb20d..f532612f 100644
--- a/codegen/Crm/Objects/Taxes/Model/NextPage.php
+++ b/codegen/Crm/Objects/Taxes/Model/NextPage.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -73,6 +73,23 @@ class NextPage implements ModelInterface, ArrayAccess, \JsonSerializable
         'after' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'link' => false,
+        'after' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -93,6 +110,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -181,8 +250,26 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['link'] = $data['link'] ?? null;
-        $this->container['after'] = $data['after'] ?? null;
+        $this->setIfExists('link', $data ?? [], null);
+        $this->setIfExists('after', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -231,6 +318,9 @@ public function getLink()
      */
     public function setLink($link)
     {
+        if (is_null($link)) {
+            throw new \InvalidArgumentException('non-nullable link cannot be null');
+        }
         $this->container['link'] = $link;
 
         return $this;
@@ -255,6 +345,9 @@ public function getAfter()
      */
     public function setAfter($after)
     {
+        if (is_null($after)) {
+            throw new \InvalidArgumentException('non-nullable after cannot be null');
+        }
         $this->container['after'] = $after;
 
         return $this;
diff --git a/codegen/Crm/Objects/Taxes/Model/Paging.php b/codegen/Crm/Objects/Taxes/Model/Paging.php
index 0a14c21a..c4f56928 100644
--- a/codegen/Crm/Objects/Taxes/Model/Paging.php
+++ b/codegen/Crm/Objects/Taxes/Model/Paging.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -73,6 +73,23 @@ class Paging implements ModelInterface, ArrayAccess, \JsonSerializable
         'prev' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'next' => false,
+        'prev' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -93,6 +110,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -181,8 +250,26 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['next'] = $data['next'] ?? null;
-        $this->container['prev'] = $data['prev'] ?? null;
+        $this->setIfExists('next', $data ?? [], null);
+        $this->setIfExists('prev', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -228,6 +315,9 @@ public function getNext()
      */
     public function setNext($next)
     {
+        if (is_null($next)) {
+            throw new \InvalidArgumentException('non-nullable next cannot be null');
+        }
         $this->container['next'] = $next;
 
         return $this;
@@ -252,6 +342,9 @@ public function getPrev()
      */
     public function setPrev($prev)
     {
+        if (is_null($prev)) {
+            throw new \InvalidArgumentException('non-nullable prev cannot be null');
+        }
         $this->container['prev'] = $prev;
 
         return $this;
diff --git a/codegen/Crm/Objects/Taxes/Model/PreviousPage.php b/codegen/Crm/Objects/Taxes/Model/PreviousPage.php
index 5b2fcb19..a26690b7 100644
--- a/codegen/Crm/Objects/Taxes/Model/PreviousPage.php
+++ b/codegen/Crm/Objects/Taxes/Model/PreviousPage.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -73,6 +73,23 @@ class PreviousPage implements ModelInterface, ArrayAccess, \JsonSerializable
         'link' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'before' => false,
+        'link' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -93,6 +110,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -181,8 +250,26 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['before'] = $data['before'] ?? null;
-        $this->container['link'] = $data['link'] ?? null;
+        $this->setIfExists('before', $data ?? [], null);
+        $this->setIfExists('link', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -231,6 +318,9 @@ public function getBefore()
      */
     public function setBefore($before)
     {
+        if (is_null($before)) {
+            throw new \InvalidArgumentException('non-nullable before cannot be null');
+        }
         $this->container['before'] = $before;
 
         return $this;
@@ -255,6 +345,9 @@ public function getLink()
      */
     public function setLink($link)
     {
+        if (is_null($link)) {
+            throw new \InvalidArgumentException('non-nullable link cannot be null');
+        }
         $this->container['link'] = $link;
 
         return $this;
diff --git a/codegen/Crm/Objects/Taxes/Model/PublicAssociationsForObject.php b/codegen/Crm/Objects/Taxes/Model/PublicAssociationsForObject.php
index dd94bddc..510c4991 100644
--- a/codegen/Crm/Objects/Taxes/Model/PublicAssociationsForObject.php
+++ b/codegen/Crm/Objects/Taxes/Model/PublicAssociationsForObject.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -73,6 +73,23 @@ class PublicAssociationsForObject implements ModelInterface, ArrayAccess, \JsonS
         'to' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'types' => false,
+        'to' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -93,6 +110,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -181,8 +250,26 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['types'] = $data['types'] ?? null;
-        $this->container['to'] = $data['to'] ?? null;
+        $this->setIfExists('types', $data ?? [], null);
+        $this->setIfExists('to', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -234,6 +321,9 @@ public function getTypes()
      */
     public function setTypes($types)
     {
+        if (is_null($types)) {
+            throw new \InvalidArgumentException('non-nullable types cannot be null');
+        }
         $this->container['types'] = $types;
 
         return $this;
@@ -258,6 +348,9 @@ public function getTo()
      */
     public function setTo($to)
     {
+        if (is_null($to)) {
+            throw new \InvalidArgumentException('non-nullable to cannot be null');
+        }
         $this->container['to'] = $to;
 
         return $this;
diff --git a/codegen/Crm/Objects/Taxes/Model/PublicGdprDeleteInput.php b/codegen/Crm/Objects/Taxes/Model/PublicGdprDeleteInput.php
index 995bc84b..65597f71 100644
--- a/codegen/Crm/Objects/Taxes/Model/PublicGdprDeleteInput.php
+++ b/codegen/Crm/Objects/Taxes/Model/PublicGdprDeleteInput.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -73,6 +73,23 @@ class PublicGdprDeleteInput implements ModelInterface, ArrayAccess, \JsonSeriali
         'object_id' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'id_property' => false,
+        'object_id' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -93,6 +110,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -181,8 +250,26 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['id_property'] = $data['id_property'] ?? null;
-        $this->container['object_id'] = $data['object_id'] ?? null;
+        $this->setIfExists('id_property', $data ?? [], null);
+        $this->setIfExists('object_id', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -231,6 +318,9 @@ public function getIdProperty()
      */
     public function setIdProperty($id_property)
     {
+        if (is_null($id_property)) {
+            throw new \InvalidArgumentException('non-nullable id_property cannot be null');
+        }
         $this->container['id_property'] = $id_property;
 
         return $this;
@@ -255,6 +345,9 @@ public function getObjectId()
      */
     public function setObjectId($object_id)
     {
+        if (is_null($object_id)) {
+            throw new \InvalidArgumentException('non-nullable object_id cannot be null');
+        }
         $this->container['object_id'] = $object_id;
 
         return $this;
diff --git a/codegen/Crm/Objects/Taxes/Model/PublicMergeInput.php b/codegen/Crm/Objects/Taxes/Model/PublicMergeInput.php
index a22a282a..3ae897e5 100644
--- a/codegen/Crm/Objects/Taxes/Model/PublicMergeInput.php
+++ b/codegen/Crm/Objects/Taxes/Model/PublicMergeInput.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -73,6 +73,23 @@ class PublicMergeInput implements ModelInterface, ArrayAccess, \JsonSerializable
         'primary_object_id' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'object_id_to_merge' => false,
+        'primary_object_id' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -93,6 +110,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -181,8 +250,26 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['object_id_to_merge'] = $data['object_id_to_merge'] ?? null;
-        $this->container['primary_object_id'] = $data['primary_object_id'] ?? null;
+        $this->setIfExists('object_id_to_merge', $data ?? [], null);
+        $this->setIfExists('primary_object_id', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -234,6 +321,9 @@ public function getObjectIdToMerge()
      */
     public function setObjectIdToMerge($object_id_to_merge)
     {
+        if (is_null($object_id_to_merge)) {
+            throw new \InvalidArgumentException('non-nullable object_id_to_merge cannot be null');
+        }
         $this->container['object_id_to_merge'] = $object_id_to_merge;
 
         return $this;
@@ -258,6 +348,9 @@ public function getPrimaryObjectId()
      */
     public function setPrimaryObjectId($primary_object_id)
     {
+        if (is_null($primary_object_id)) {
+            throw new \InvalidArgumentException('non-nullable primary_object_id cannot be null');
+        }
         $this->container['primary_object_id'] = $primary_object_id;
 
         return $this;
diff --git a/codegen/Crm/Objects/Taxes/Model/PublicObjectId.php b/codegen/Crm/Objects/Taxes/Model/PublicObjectId.php
index 89ee2ba7..99a5da99 100644
--- a/codegen/Crm/Objects/Taxes/Model/PublicObjectId.php
+++ b/codegen/Crm/Objects/Taxes/Model/PublicObjectId.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -71,6 +71,22 @@ class PublicObjectId implements ModelInterface, ArrayAccess, \JsonSerializable
         'id' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'id' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -91,6 +107,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -176,7 +244,25 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['id'] = $data['id'] ?? null;
+        $this->setIfExists('id', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -225,6 +311,9 @@ public function getId()
      */
     public function setId($id)
     {
+        if (is_null($id)) {
+            throw new \InvalidArgumentException('non-nullable id cannot be null');
+        }
         $this->container['id'] = $id;
 
         return $this;
diff --git a/codegen/Crm/Objects/Taxes/Model/PublicObjectSearchRequest.php b/codegen/Crm/Objects/Taxes/Model/PublicObjectSearchRequest.php
index 98ab37c4..edd24a2b 100644
--- a/codegen/Crm/Objects/Taxes/Model/PublicObjectSearchRequest.php
+++ b/codegen/Crm/Objects/Taxes/Model/PublicObjectSearchRequest.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -81,6 +81,27 @@ class PublicObjectSearchRequest implements ModelInterface, ArrayAccess, \JsonSer
         'filter_groups' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'query' => false,
+        'limit' => false,
+        'after' => false,
+        'sorts' => false,
+        'properties' => false,
+        'filter_groups' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -101,6 +122,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -201,12 +274,30 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['query'] = $data['query'] ?? null;
-        $this->container['limit'] = $data['limit'] ?? null;
-        $this->container['after'] = $data['after'] ?? null;
-        $this->container['sorts'] = $data['sorts'] ?? null;
-        $this->container['properties'] = $data['properties'] ?? null;
-        $this->container['filter_groups'] = $data['filter_groups'] ?? null;
+        $this->setIfExists('query', $data ?? [], null);
+        $this->setIfExists('limit', $data ?? [], null);
+        $this->setIfExists('after', $data ?? [], null);
+        $this->setIfExists('sorts', $data ?? [], null);
+        $this->setIfExists('properties', $data ?? [], null);
+        $this->setIfExists('filter_groups', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -267,6 +358,9 @@ public function getQuery()
      */
     public function setQuery($query)
     {
+        if (is_null($query)) {
+            throw new \InvalidArgumentException('non-nullable query cannot be null');
+        }
         $this->container['query'] = $query;
 
         return $this;
@@ -291,6 +385,9 @@ public function getLimit()
      */
     public function setLimit($limit)
     {
+        if (is_null($limit)) {
+            throw new \InvalidArgumentException('non-nullable limit cannot be null');
+        }
         $this->container['limit'] = $limit;
 
         return $this;
@@ -315,6 +412,9 @@ public function getAfter()
      */
     public function setAfter($after)
     {
+        if (is_null($after)) {
+            throw new \InvalidArgumentException('non-nullable after cannot be null');
+        }
         $this->container['after'] = $after;
 
         return $this;
@@ -339,6 +439,9 @@ public function getSorts()
      */
     public function setSorts($sorts)
     {
+        if (is_null($sorts)) {
+            throw new \InvalidArgumentException('non-nullable sorts cannot be null');
+        }
         $this->container['sorts'] = $sorts;
 
         return $this;
@@ -363,6 +466,9 @@ public function getProperties()
      */
     public function setProperties($properties)
     {
+        if (is_null($properties)) {
+            throw new \InvalidArgumentException('non-nullable properties cannot be null');
+        }
         $this->container['properties'] = $properties;
 
         return $this;
@@ -387,6 +493,9 @@ public function getFilterGroups()
      */
     public function setFilterGroups($filter_groups)
     {
+        if (is_null($filter_groups)) {
+            throw new \InvalidArgumentException('non-nullable filter_groups cannot be null');
+        }
         $this->container['filter_groups'] = $filter_groups;
 
         return $this;
diff --git a/codegen/Crm/Objects/Taxes/Model/SimplePublicObject.php b/codegen/Crm/Objects/Taxes/Model/SimplePublicObject.php
index 1e273ade..dc22dd35 100644
--- a/codegen/Crm/Objects/Taxes/Model/SimplePublicObject.php
+++ b/codegen/Crm/Objects/Taxes/Model/SimplePublicObject.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -83,6 +83,28 @@ class SimplePublicObject implements ModelInterface, ArrayAccess, \JsonSerializab
         'updated_at' => 'date-time'
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'created_at' => false,
+        'archived' => false,
+        'archived_at' => false,
+        'properties_with_history' => false,
+        'id' => false,
+        'properties' => false,
+        'updated_at' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -103,6 +125,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -206,13 +280,31 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['created_at'] = $data['created_at'] ?? null;
-        $this->container['archived'] = $data['archived'] ?? null;
-        $this->container['archived_at'] = $data['archived_at'] ?? null;
-        $this->container['properties_with_history'] = $data['properties_with_history'] ?? null;
-        $this->container['id'] = $data['id'] ?? null;
-        $this->container['properties'] = $data['properties'] ?? null;
-        $this->container['updated_at'] = $data['updated_at'] ?? null;
+        $this->setIfExists('created_at', $data ?? [], null);
+        $this->setIfExists('archived', $data ?? [], null);
+        $this->setIfExists('archived_at', $data ?? [], null);
+        $this->setIfExists('properties_with_history', $data ?? [], null);
+        $this->setIfExists('id', $data ?? [], null);
+        $this->setIfExists('properties', $data ?? [], null);
+        $this->setIfExists('updated_at', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -270,6 +362,9 @@ public function getCreatedAt()
      */
     public function setCreatedAt($created_at)
     {
+        if (is_null($created_at)) {
+            throw new \InvalidArgumentException('non-nullable created_at cannot be null');
+        }
         $this->container['created_at'] = $created_at;
 
         return $this;
@@ -294,6 +389,9 @@ public function getArchived()
      */
     public function setArchived($archived)
     {
+        if (is_null($archived)) {
+            throw new \InvalidArgumentException('non-nullable archived cannot be null');
+        }
         $this->container['archived'] = $archived;
 
         return $this;
@@ -318,6 +416,9 @@ public function getArchivedAt()
      */
     public function setArchivedAt($archived_at)
     {
+        if (is_null($archived_at)) {
+            throw new \InvalidArgumentException('non-nullable archived_at cannot be null');
+        }
         $this->container['archived_at'] = $archived_at;
 
         return $this;
@@ -342,6 +443,9 @@ public function getPropertiesWithHistory()
      */
     public function setPropertiesWithHistory($properties_with_history)
     {
+        if (is_null($properties_with_history)) {
+            throw new \InvalidArgumentException('non-nullable properties_with_history cannot be null');
+        }
         $this->container['properties_with_history'] = $properties_with_history;
 
         return $this;
@@ -366,6 +470,9 @@ public function getId()
      */
     public function setId($id)
     {
+        if (is_null($id)) {
+            throw new \InvalidArgumentException('non-nullable id cannot be null');
+        }
         $this->container['id'] = $id;
 
         return $this;
@@ -390,6 +497,9 @@ public function getProperties()
      */
     public function setProperties($properties)
     {
+        if (is_null($properties)) {
+            throw new \InvalidArgumentException('non-nullable properties cannot be null');
+        }
         $this->container['properties'] = $properties;
 
         return $this;
@@ -414,6 +524,9 @@ public function getUpdatedAt()
      */
     public function setUpdatedAt($updated_at)
     {
+        if (is_null($updated_at)) {
+            throw new \InvalidArgumentException('non-nullable updated_at cannot be null');
+        }
         $this->container['updated_at'] = $updated_at;
 
         return $this;
diff --git a/codegen/Crm/Objects/Taxes/Model/SimplePublicObjectBatchInput.php b/codegen/Crm/Objects/Taxes/Model/SimplePublicObjectBatchInput.php
index a73dd69f..ce53fb5f 100644
--- a/codegen/Crm/Objects/Taxes/Model/SimplePublicObjectBatchInput.php
+++ b/codegen/Crm/Objects/Taxes/Model/SimplePublicObjectBatchInput.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -75,6 +75,24 @@ class SimplePublicObjectBatchInput implements ModelInterface, ArrayAccess, \Json
         'properties' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'id_property' => false,
+        'id' => false,
+        'properties' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -95,6 +113,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -186,9 +256,27 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['id_property'] = $data['id_property'] ?? null;
-        $this->container['id'] = $data['id'] ?? null;
-        $this->container['properties'] = $data['properties'] ?? null;
+        $this->setIfExists('id_property', $data ?? [], null);
+        $this->setIfExists('id', $data ?? [], null);
+        $this->setIfExists('properties', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -240,6 +328,9 @@ public function getIdProperty()
      */
     public function setIdProperty($id_property)
     {
+        if (is_null($id_property)) {
+            throw new \InvalidArgumentException('non-nullable id_property cannot be null');
+        }
         $this->container['id_property'] = $id_property;
 
         return $this;
@@ -264,6 +355,9 @@ public function getId()
      */
     public function setId($id)
     {
+        if (is_null($id)) {
+            throw new \InvalidArgumentException('non-nullable id cannot be null');
+        }
         $this->container['id'] = $id;
 
         return $this;
@@ -288,6 +382,9 @@ public function getProperties()
      */
     public function setProperties($properties)
     {
+        if (is_null($properties)) {
+            throw new \InvalidArgumentException('non-nullable properties cannot be null');
+        }
         $this->container['properties'] = $properties;
 
         return $this;
diff --git a/codegen/Crm/Objects/Taxes/Model/SimplePublicObjectId.php b/codegen/Crm/Objects/Taxes/Model/SimplePublicObjectId.php
index 58bca6cc..538b7295 100644
--- a/codegen/Crm/Objects/Taxes/Model/SimplePublicObjectId.php
+++ b/codegen/Crm/Objects/Taxes/Model/SimplePublicObjectId.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -71,6 +71,22 @@ class SimplePublicObjectId implements ModelInterface, ArrayAccess, \JsonSerializ
         'id' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'id' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -91,6 +107,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -176,7 +244,25 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['id'] = $data['id'] ?? null;
+        $this->setIfExists('id', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -225,6 +311,9 @@ public function getId()
      */
     public function setId($id)
     {
+        if (is_null($id)) {
+            throw new \InvalidArgumentException('non-nullable id cannot be null');
+        }
         $this->container['id'] = $id;
 
         return $this;
diff --git a/codegen/Crm/Objects/Taxes/Model/SimplePublicObjectInput.php b/codegen/Crm/Objects/Taxes/Model/SimplePublicObjectInput.php
index 2f8bd99c..eaae0e74 100644
--- a/codegen/Crm/Objects/Taxes/Model/SimplePublicObjectInput.php
+++ b/codegen/Crm/Objects/Taxes/Model/SimplePublicObjectInput.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -71,6 +71,22 @@ class SimplePublicObjectInput implements ModelInterface, ArrayAccess, \JsonSeria
         'properties' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'properties' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -91,6 +107,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -176,7 +244,25 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['properties'] = $data['properties'] ?? null;
+        $this->setIfExists('properties', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -225,6 +311,9 @@ public function getProperties()
      */
     public function setProperties($properties)
     {
+        if (is_null($properties)) {
+            throw new \InvalidArgumentException('non-nullable properties cannot be null');
+        }
         $this->container['properties'] = $properties;
 
         return $this;
diff --git a/codegen/Crm/Objects/Taxes/Model/SimplePublicObjectInputForCreate.php b/codegen/Crm/Objects/Taxes/Model/SimplePublicObjectInputForCreate.php
index ccd4c3a5..abd8af7c 100644
--- a/codegen/Crm/Objects/Taxes/Model/SimplePublicObjectInputForCreate.php
+++ b/codegen/Crm/Objects/Taxes/Model/SimplePublicObjectInputForCreate.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -73,6 +73,23 @@ class SimplePublicObjectInputForCreate implements ModelInterface, ArrayAccess, \
         'properties' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'associations' => false,
+        'properties' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -93,6 +110,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -181,8 +250,26 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['associations'] = $data['associations'] ?? null;
-        $this->container['properties'] = $data['properties'] ?? null;
+        $this->setIfExists('associations', $data ?? [], null);
+        $this->setIfExists('properties', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -234,6 +321,9 @@ public function getAssociations()
      */
     public function setAssociations($associations)
     {
+        if (is_null($associations)) {
+            throw new \InvalidArgumentException('non-nullable associations cannot be null');
+        }
         $this->container['associations'] = $associations;
 
         return $this;
@@ -258,6 +348,9 @@ public function getProperties()
      */
     public function setProperties($properties)
     {
+        if (is_null($properties)) {
+            throw new \InvalidArgumentException('non-nullable properties cannot be null');
+        }
         $this->container['properties'] = $properties;
 
         return $this;
diff --git a/codegen/Crm/Objects/Taxes/Model/SimplePublicObjectWithAssociations.php b/codegen/Crm/Objects/Taxes/Model/SimplePublicObjectWithAssociations.php
index 39b876df..9867054b 100644
--- a/codegen/Crm/Objects/Taxes/Model/SimplePublicObjectWithAssociations.php
+++ b/codegen/Crm/Objects/Taxes/Model/SimplePublicObjectWithAssociations.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -85,6 +85,29 @@ class SimplePublicObjectWithAssociations implements ModelInterface, ArrayAccess,
         'updated_at' => 'date-time'
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'associations' => false,
+        'created_at' => false,
+        'archived' => false,
+        'archived_at' => false,
+        'properties_with_history' => false,
+        'id' => false,
+        'properties' => false,
+        'updated_at' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -105,6 +128,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -211,14 +286,32 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['associations'] = $data['associations'] ?? null;
-        $this->container['created_at'] = $data['created_at'] ?? null;
-        $this->container['archived'] = $data['archived'] ?? null;
-        $this->container['archived_at'] = $data['archived_at'] ?? null;
-        $this->container['properties_with_history'] = $data['properties_with_history'] ?? null;
-        $this->container['id'] = $data['id'] ?? null;
-        $this->container['properties'] = $data['properties'] ?? null;
-        $this->container['updated_at'] = $data['updated_at'] ?? null;
+        $this->setIfExists('associations', $data ?? [], null);
+        $this->setIfExists('created_at', $data ?? [], null);
+        $this->setIfExists('archived', $data ?? [], null);
+        $this->setIfExists('archived_at', $data ?? [], null);
+        $this->setIfExists('properties_with_history', $data ?? [], null);
+        $this->setIfExists('id', $data ?? [], null);
+        $this->setIfExists('properties', $data ?? [], null);
+        $this->setIfExists('updated_at', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -276,6 +369,9 @@ public function getAssociations()
      */
     public function setAssociations($associations)
     {
+        if (is_null($associations)) {
+            throw new \InvalidArgumentException('non-nullable associations cannot be null');
+        }
         $this->container['associations'] = $associations;
 
         return $this;
@@ -300,6 +396,9 @@ public function getCreatedAt()
      */
     public function setCreatedAt($created_at)
     {
+        if (is_null($created_at)) {
+            throw new \InvalidArgumentException('non-nullable created_at cannot be null');
+        }
         $this->container['created_at'] = $created_at;
 
         return $this;
@@ -324,6 +423,9 @@ public function getArchived()
      */
     public function setArchived($archived)
     {
+        if (is_null($archived)) {
+            throw new \InvalidArgumentException('non-nullable archived cannot be null');
+        }
         $this->container['archived'] = $archived;
 
         return $this;
@@ -348,6 +450,9 @@ public function getArchivedAt()
      */
     public function setArchivedAt($archived_at)
     {
+        if (is_null($archived_at)) {
+            throw new \InvalidArgumentException('non-nullable archived_at cannot be null');
+        }
         $this->container['archived_at'] = $archived_at;
 
         return $this;
@@ -372,6 +477,9 @@ public function getPropertiesWithHistory()
      */
     public function setPropertiesWithHistory($properties_with_history)
     {
+        if (is_null($properties_with_history)) {
+            throw new \InvalidArgumentException('non-nullable properties_with_history cannot be null');
+        }
         $this->container['properties_with_history'] = $properties_with_history;
 
         return $this;
@@ -396,6 +504,9 @@ public function getId()
      */
     public function setId($id)
     {
+        if (is_null($id)) {
+            throw new \InvalidArgumentException('non-nullable id cannot be null');
+        }
         $this->container['id'] = $id;
 
         return $this;
@@ -420,6 +531,9 @@ public function getProperties()
      */
     public function setProperties($properties)
     {
+        if (is_null($properties)) {
+            throw new \InvalidArgumentException('non-nullable properties cannot be null');
+        }
         $this->container['properties'] = $properties;
 
         return $this;
@@ -444,6 +558,9 @@ public function getUpdatedAt()
      */
     public function setUpdatedAt($updated_at)
     {
+        if (is_null($updated_at)) {
+            throw new \InvalidArgumentException('non-nullable updated_at cannot be null');
+        }
         $this->container['updated_at'] = $updated_at;
 
         return $this;
diff --git a/codegen/Crm/Objects/Taxes/Model/StandardError.php b/codegen/Crm/Objects/Taxes/Model/StandardError.php
index 01630c72..dc731b92 100644
--- a/codegen/Crm/Objects/Taxes/Model/StandardError.php
+++ b/codegen/Crm/Objects/Taxes/Model/StandardError.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -85,6 +85,29 @@ class StandardError implements ModelInterface, ArrayAccess, \JsonSerializable
         'status' => null
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'sub_category' => false,
+        'context' => false,
+        'links' => false,
+        'id' => false,
+        'category' => false,
+        'message' => false,
+        'errors' => false,
+        'status' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -105,6 +128,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -211,14 +286,32 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['sub_category'] = $data['sub_category'] ?? null;
-        $this->container['context'] = $data['context'] ?? null;
-        $this->container['links'] = $data['links'] ?? null;
-        $this->container['id'] = $data['id'] ?? null;
-        $this->container['category'] = $data['category'] ?? null;
-        $this->container['message'] = $data['message'] ?? null;
-        $this->container['errors'] = $data['errors'] ?? null;
-        $this->container['status'] = $data['status'] ?? null;
+        $this->setIfExists('sub_category', $data ?? [], null);
+        $this->setIfExists('context', $data ?? [], null);
+        $this->setIfExists('links', $data ?? [], null);
+        $this->setIfExists('id', $data ?? [], null);
+        $this->setIfExists('category', $data ?? [], null);
+        $this->setIfExists('message', $data ?? [], null);
+        $this->setIfExists('errors', $data ?? [], null);
+        $this->setIfExists('status', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -282,6 +375,9 @@ public function getSubCategory()
      */
     public function setSubCategory($sub_category)
     {
+        if (is_null($sub_category)) {
+            throw new \InvalidArgumentException('non-nullable sub_category cannot be null');
+        }
         $this->container['sub_category'] = $sub_category;
 
         return $this;
@@ -306,6 +402,9 @@ public function getContext()
      */
     public function setContext($context)
     {
+        if (is_null($context)) {
+            throw new \InvalidArgumentException('non-nullable context cannot be null');
+        }
         $this->container['context'] = $context;
 
         return $this;
@@ -330,6 +429,9 @@ public function getLinks()
      */
     public function setLinks($links)
     {
+        if (is_null($links)) {
+            throw new \InvalidArgumentException('non-nullable links cannot be null');
+        }
         $this->container['links'] = $links;
 
         return $this;
@@ -354,6 +456,9 @@ public function getId()
      */
     public function setId($id)
     {
+        if (is_null($id)) {
+            throw new \InvalidArgumentException('non-nullable id cannot be null');
+        }
         $this->container['id'] = $id;
 
         return $this;
@@ -378,6 +483,9 @@ public function getCategory()
      */
     public function setCategory($category)
     {
+        if (is_null($category)) {
+            throw new \InvalidArgumentException('non-nullable category cannot be null');
+        }
         $this->container['category'] = $category;
 
         return $this;
@@ -402,6 +510,9 @@ public function getMessage()
      */
     public function setMessage($message)
     {
+        if (is_null($message)) {
+            throw new \InvalidArgumentException('non-nullable message cannot be null');
+        }
         $this->container['message'] = $message;
 
         return $this;
@@ -426,6 +537,9 @@ public function getErrors()
      */
     public function setErrors($errors)
     {
+        if (is_null($errors)) {
+            throw new \InvalidArgumentException('non-nullable errors cannot be null');
+        }
         $this->container['errors'] = $errors;
 
         return $this;
@@ -450,6 +564,9 @@ public function getStatus()
      */
     public function setStatus($status)
     {
+        if (is_null($status)) {
+            throw new \InvalidArgumentException('non-nullable status cannot be null');
+        }
         $this->container['status'] = $status;
 
         return $this;
diff --git a/codegen/Crm/Objects/Taxes/Model/ValueWithTimestamp.php b/codegen/Crm/Objects/Taxes/Model/ValueWithTimestamp.php
index 941b2fd7..573eadbd 100644
--- a/codegen/Crm/Objects/Taxes/Model/ValueWithTimestamp.php
+++ b/codegen/Crm/Objects/Taxes/Model/ValueWithTimestamp.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -81,6 +81,27 @@ class ValueWithTimestamp implements ModelInterface, ArrayAccess, \JsonSerializab
         'timestamp' => 'date-time'
     ];
 
+    /**
+      * Array of nullable properties. Used for (de)serialization
+      *
+      * @var boolean[]
+      */
+    protected static array $openAPINullables = [
+        'source_id' => false,
+        'source_type' => false,
+        'source_label' => false,
+        'updated_by_user_id' => false,
+        'value' => false,
+        'timestamp' => false
+    ];
+
+    /**
+      * If a nullable field gets set to null, insert it here
+      *
+      * @var boolean[]
+      */
+    protected array $openAPINullablesSetToNull = [];
+
     /**
      * Array of property to type mappings. Used for (de)serialization
      *
@@ -101,6 +122,58 @@ public static function openAPIFormats()
         return self::$openAPIFormats;
     }
 
+    /**
+     * Array of nullable properties
+     *
+     * @return array
+     */
+    protected static function openAPINullables(): array
+    {
+        return self::$openAPINullables;
+    }
+
+    /**
+     * Array of nullable field names deliberately set to null
+     *
+     * @return boolean[]
+     */
+    private function getOpenAPINullablesSetToNull(): array
+    {
+        return $this->openAPINullablesSetToNull;
+    }
+
+    /**
+     * Setter - Array of nullable field names deliberately set to null
+     *
+     * @param boolean[] $openAPINullablesSetToNull
+     */
+    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
+    {
+        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
+    }
+
+    /**
+     * Checks if a property is nullable
+     *
+     * @param string $property
+     * @return bool
+     */
+    public static function isNullable(string $property): bool
+    {
+        return self::openAPINullables()[$property] ?? false;
+    }
+
+    /**
+     * Checks if a nullable property is set to null.
+     *
+     * @param string $property
+     * @return bool
+     */
+    public function isNullableSetToNull(string $property): bool
+    {
+        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
+    }
+
     /**
      * Array of attributes where the key is the local name,
      * and the value is the original name
@@ -201,12 +274,30 @@ public function getModelName()
      */
     public function __construct(array $data = null)
     {
-        $this->container['source_id'] = $data['source_id'] ?? null;
-        $this->container['source_type'] = $data['source_type'] ?? null;
-        $this->container['source_label'] = $data['source_label'] ?? null;
-        $this->container['updated_by_user_id'] = $data['updated_by_user_id'] ?? null;
-        $this->container['value'] = $data['value'] ?? null;
-        $this->container['timestamp'] = $data['timestamp'] ?? null;
+        $this->setIfExists('source_id', $data ?? [], null);
+        $this->setIfExists('source_type', $data ?? [], null);
+        $this->setIfExists('source_label', $data ?? [], null);
+        $this->setIfExists('updated_by_user_id', $data ?? [], null);
+        $this->setIfExists('value', $data ?? [], null);
+        $this->setIfExists('timestamp', $data ?? [], null);
+    }
+
+    /**
+    * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
+    * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
+    * $this->openAPINullablesSetToNull array
+    *
+    * @param string $variableName
+    * @param array  $fields
+    * @param mixed  $defaultValue
+    */
+    private function setIfExists(string $variableName, array $fields, $defaultValue): void
+    {
+        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
+            $this->openAPINullablesSetToNull[] = $variableName;
+        }
+
+        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
     }
 
     /**
@@ -261,6 +352,9 @@ public function getSourceId()
      */
     public function setSourceId($source_id)
     {
+        if (is_null($source_id)) {
+            throw new \InvalidArgumentException('non-nullable source_id cannot be null');
+        }
         $this->container['source_id'] = $source_id;
 
         return $this;
@@ -285,6 +379,9 @@ public function getSourceType()
      */
     public function setSourceType($source_type)
     {
+        if (is_null($source_type)) {
+            throw new \InvalidArgumentException('non-nullable source_type cannot be null');
+        }
         $this->container['source_type'] = $source_type;
 
         return $this;
@@ -309,6 +406,9 @@ public function getSourceLabel()
      */
     public function setSourceLabel($source_label)
     {
+        if (is_null($source_label)) {
+            throw new \InvalidArgumentException('non-nullable source_label cannot be null');
+        }
         $this->container['source_label'] = $source_label;
 
         return $this;
@@ -333,6 +433,9 @@ public function getUpdatedByUserId()
      */
     public function setUpdatedByUserId($updated_by_user_id)
     {
+        if (is_null($updated_by_user_id)) {
+            throw new \InvalidArgumentException('non-nullable updated_by_user_id cannot be null');
+        }
         $this->container['updated_by_user_id'] = $updated_by_user_id;
 
         return $this;
@@ -357,6 +460,9 @@ public function getValue()
      */
     public function setValue($value)
     {
+        if (is_null($value)) {
+            throw new \InvalidArgumentException('non-nullable value cannot be null');
+        }
         $this->container['value'] = $value;
 
         return $this;
@@ -381,6 +487,9 @@ public function getTimestamp()
      */
     public function setTimestamp($timestamp)
     {
+        if (is_null($timestamp)) {
+            throw new \InvalidArgumentException('non-nullable timestamp cannot be null');
+        }
         $this->container['timestamp'] = $timestamp;
 
         return $this;
diff --git a/codegen/Crm/Objects/Taxes/ObjectSerializer.php b/codegen/Crm/Objects/Taxes/ObjectSerializer.php
index f3085cc2..c6bb5183 100644
--- a/codegen/Crm/Objects/Taxes/ObjectSerializer.php
+++ b/codegen/Crm/Objects/Taxes/ObjectSerializer.php
@@ -17,7 +17,7 @@
  *
  * The version of the OpenAPI document: v3
  * Generated by: https://openapi-generator.tech
- * OpenAPI Generator version: 6.0.1
+ * OpenAPI Generator version: 7.3.0
  */
 
 /**
@@ -87,7 +87,7 @@ public static function sanitizeForSerialization($data, $type = null, $format = n
                 foreach ($data::openAPITypes() as $property => $openAPIType) {
                     $getter = $data::getters()[$property];
                     $value = $data->$getter();
-                    if ($value !== null && !in_array($openAPIType, ['\DateTime', '\SplFileObject', 'array', 'bool', 'boolean', 'byte', 'double', 'float', 'int', 'integer', 'mixed', 'number', 'object', 'string', 'void'], true)) {
+                    if ($value !== null && !in_array($openAPIType, ['\DateTime', '\SplFileObject', 'array', 'bool', 'boolean', 'byte', 'float', 'int', 'integer', 'mixed', 'number', 'object', 'string', 'void'], true)) {
                         $callable = [$openAPIType, 'getAllowableEnumValues'];
                         if (is_callable($callable)) {
                             /** array $callable */
@@ -98,7 +98,7 @@ public static function sanitizeForSerialization($data, $type = null, $format = n
                             }
                         }
                     }
-                    if ($value !== null) {
+                    if (($data::isNullable($property) && $data->isNullableSetToNull($property)) || $value !== null) {
                         $values[$data::attributeMap()[$property]] = self::sanitizeForSerialization($value, $openAPIType, $formats[$property]);
                     }
                 }
@@ -157,6 +157,49 @@ public static function toPathValue($value)
         return rawurlencode(self::toString($value));
     }
 
+    /**
+     * Checks if a value is empty, based on its OpenAPI type.
+     *
+     * @param mixed  $value
+     * @param string $openApiType
+     *
+     * @return bool true if $value is empty
+     */
+    private static function isEmptyValue($value, string $openApiType): bool
+    {
+        # If empty() returns false, it is not empty regardless of its type.
+        if (!empty($value)) {
+            return false;
+        }
+
+        # Null is always empty, as we cannot send a real "null" value in a query parameter.
+        if ($value === null) {
+            return true;
+        }
+
+        switch ($openApiType) {
+            # For numeric values, false and '' are considered empty.
+            # This comparison is safe for floating point values, since the previous call to empty() will
+            # filter out values that don't match 0.
+            case 'int':
+            case 'integer':
+                return $value !== 0;
+
+            case 'number':
+            case 'float':
+                return $value !== 0 && $value !== 0.0;
+
+            # For boolean values, '' is considered empty
+            case 'bool':
+            case 'boolean':
+                return !in_array($value, [false, 0], true);
+
+            # For all the other types, any value at this point can be considered empty.
+            default:
+                return true;
+        }
+    }
+
     /**
      * Take query parameter properties and turn it into an array suitable for
      * native http_build_query or GuzzleHttp\Psr7\Query::build.
@@ -178,10 +221,12 @@ public static function toQueryValue(
         bool $explode = true,
         bool $required = true
     ): array {
-        if (
-            empty($value)
-            && ($value !== false || $openApiType !== 'boolean') // if $value === false and $openApiType ==='boolean' it isn't empty
-        ) {
+
+        # Check if we should omit this parameter from the query. This should only happen when:
+        #  - Parameter is NOT required; AND
+        #  - its value is set to a value that is equivalent to "empty", depending on its OpenAPI type. For
+        #    example, 0 as "int" or "boolean" is NOT an empty value.
+        if (self::isEmptyValue($value, $openApiType)) {
             if ($required) {
                 return ["{$paramName}" => ''];
             } else {
@@ -189,6 +234,11 @@ public static function toQueryValue(
             }
         }
 
+        # Handle DateTime objects in query
+        if($openApiType === "\\DateTime" && $value instanceof \DateTime) {
+            return ["{$paramName}" => $value->format(self::$dateTimeFormat)];
+        }
+
         $query = [];
         $value = (in_array($openApiType, ['object', 'array'], true)) ? (array)$value : $value;
 
@@ -395,7 +445,7 @@ public static function deserialize($data, $class, $httpHeaders = null)
         }
 
         if ($class === '\DateTime') {
-            // Some API's return an invalid, empty string as a
+            // Some APIs return an invalid, empty string as a
             // date-time property. DateTime::__construct() will return
             // the current time for empty input which is probably not
             // what is meant. The invalid empty string is probably to
@@ -405,7 +455,7 @@ public static function deserialize($data, $class, $httpHeaders = null)
                 try {
                     return new \DateTime($data);
                 } catch (\Exception $exception) {
-                    // Some API's return a date-time with too high nanosecond
+                    // Some APIs return a date-time with too high nanosecond
                     // precision for php's DateTime to handle.
                     // With provided regexp 6 digits of microseconds saved
                     return new \DateTime(self::sanitizeTimestamp($data));
@@ -441,7 +491,7 @@ public static function deserialize($data, $class, $httpHeaders = null)
         }
 
         /** @psalm-suppress ParadoxicalCondition */
-        if (in_array($class, ['\DateTime', '\SplFileObject', 'array', 'bool', 'boolean', 'byte', 'double', 'float', 'int', 'integer', 'mixed', 'number', 'object', 'string', 'void'], true)) {
+        if (in_array($class, ['\DateTime', '\SplFileObject', 'array', 'bool', 'boolean', 'byte', 'float', 'int', 'integer', 'mixed', 'number', 'object', 'string', 'void'], true)) {
             settype($data, $class);
             return $data;
         }
@@ -455,6 +505,11 @@ public static function deserialize($data, $class, $httpHeaders = null)
             return $data;
         } else {
             $data = is_string($data) ? json_decode($data) : $data;
+
+            if (is_array($data)) {
+                $data = (object)$data;
+            }
+
             // If a discriminator is defined and points to a valid subclass, use it.
             $discriminator = $class::DISCRIMINATOR;
             if (!empty($discriminator) && isset($data->{$discriminator}) && is_string($data->{$discriminator})) {
@@ -469,7 +524,15 @@ public static function deserialize($data, $class, $httpHeaders = null)
             foreach ($instance::openAPITypes() as $property => $type) {
                 $propertySetter = $instance::setters()[$property];
 
-                if (!isset($propertySetter) || !isset($data->{$instance::attributeMap()[$property]})) {
+                if (!isset($propertySetter)) {
+                    continue;
+                }
+
+                if (!isset($data->{$instance::attributeMap()[$property]})) {
+                    if ($instance::isNullable($property)) {
+                        $instance->$propertySetter(null);
+                    }
+
                     continue;
                 }