[Python] pass api_client configuration to model deserialize (#13922)

The if not passed the models create a new configuration object which
configures logging and determines cpu count every time.
This causes extreme performance issues when deserializing larger sets of
items.

See also
kubernetes-client/python#1921

Author: juliantaylor

Diff for: modules/openapi-generator/src/main/resources/python-legacy/api_client.mustache

@@ -715,6 +715,7 @@ class ApiClient(object):
                     value = data[klass.attribute_map[attr]]
                     kwargs[attr] = self.__deserialize(value, attr_type)
 
+        kwargs["local_vars_configuration"] = self.configuration
         instance = klass(**kwargs)
 
         if has_discriminator:

Diff for: samples/client/petstore/python-asyncio/petstore_api/api_client.py

@@ -692,6 +692,7 @@ def __deserialize_model(self, data, klass):
                     value = data[klass.attribute_map[attr]]
                     kwargs[attr] = self.__deserialize(value, attr_type)
 
+        kwargs["local_vars_configuration"] = self.configuration
         instance = klass(**kwargs)
 
         if has_discriminator:

Diff for: samples/client/petstore/python-legacy/petstore_api/api_client.py

@@ -691,6 +691,7 @@ def __deserialize_model(self, data, klass):
                     value = data[klass.attribute_map[attr]]
                     kwargs[attr] = self.__deserialize(value, attr_type)
 
+        kwargs["local_vars_configuration"] = self.configuration
         instance = klass(**kwargs)
 
         if has_discriminator:

Diff for: samples/client/petstore/python-tornado/petstore_api/api_client.py

@@ -693,6 +693,7 @@ def __deserialize_model(self, data, klass):
                     value = data[klass.attribute_map[attr]]
                     kwargs[attr] = self.__deserialize(value, attr_type)
 
+        kwargs["local_vars_configuration"] = self.configuration
         instance = klass(**kwargs)
 
         if has_discriminator:

Diff for: samples/openapi3/client/petstore/python-legacy/petstore_api/api_client.py

@@ -691,6 +691,7 @@ def __deserialize_model(self, data, klass):
                     value = data[klass.attribute_map[attr]]
                     kwargs[attr] = self.__deserialize(value, attr_type)
 
+        kwargs["local_vars_configuration"] = self.configuration
         instance = klass(**kwargs)
 
         if has_discriminator: