diff --git a/package.json b/package.json
index c3b35603..25b2ef33 100644
--- a/package.json
+++ b/package.json
@@ -17,7 +17,9 @@
         "node-fetch": "2.7.0",
         "qs": "6.11.2",
         "ws": "^8.14.2",
-        "uuid": "9.0.1"
+        "@types/ws": "^8.5.9",
+        "uuid": "9.0.1",
+        "@types/uuid": "9.0.7"
     },
     "devDependencies": {
         "@types/url-join": "4.0.1",
@@ -28,8 +30,6 @@
         "ts-jest": "^29.1.1",
         "@types/node": "17.0.33",
         "prettier": "2.7.1",
-        "typescript": "4.6.4",
-        "@types/ws": "^8.5.9",
-        "@types/uuid": "9.0.7"
+        "typescript": "4.6.4"
     }
 }
\ No newline at end of file
diff --git a/src/Client.ts b/src/Client.ts
index c681665b..59346d56 100644
--- a/src/Client.ts
+++ b/src/Client.ts
@@ -4,8 +4,8 @@
 
 import * as environments from "./environments";
 import * as core from "./core";
-import { CustomModels } from "./api/resources/customModels/client/Client";
 import { EmpathicVoice } from "./api/resources/empathicVoice/client/Client";
+import { CustomModels } from "./api/resources/customModels/client/Client";
 import { ExpressionMeasurement } from "./api/resources/expressionMeasurement/client/Client";
 
 export declare namespace HumeClient {
@@ -25,18 +25,18 @@ export declare namespace HumeClient {
 export class HumeClient {
     constructor(protected readonly _options: HumeClient.Options = {}) {}
 
-    protected _customModels: CustomModels | undefined;
-
-    public get customModels(): CustomModels {
-        return (this._customModels ??= new CustomModels(this._options));
-    }
-
     protected _empathicVoice: EmpathicVoice | undefined;
 
     public get empathicVoice(): EmpathicVoice {
         return (this._empathicVoice ??= new EmpathicVoice(this._options));
     }
 
+    protected _customModels: CustomModels | undefined;
+
+    public get customModels(): CustomModels {
+        return (this._customModels ??= new CustomModels(this._options));
+    }
+
     protected _expressionMeasurement: ExpressionMeasurement | undefined;
 
     public get expressionMeasurement(): ExpressionMeasurement {
diff --git a/src/api/resources/empathicVoice/resources/chat/types/PublishEvent.ts b/src/api/resources/empathicVoice/resources/chat/types/PublishEvent.ts
index 0b0d74da..f3f5209a 100644
--- a/src/api/resources/empathicVoice/resources/chat/types/PublishEvent.ts
+++ b/src/api/resources/empathicVoice/resources/chat/types/PublishEvent.ts
@@ -7,5 +7,5 @@ import * as Hume from "../../../../..";
 export type PublishEvent =
     | Hume.empathicVoice.AudioInput
     | Hume.empathicVoice.SessionSettings
-    | Hume.empathicVoice.TextInput
-    | Hume.empathicVoice.TtsInput;
+    | Hume.empathicVoice.UserInput
+    | Hume.empathicVoice.AssistantInput;
diff --git a/src/api/resources/empathicVoice/types/AssistantEnd.ts b/src/api/resources/empathicVoice/types/AssistantEnd.ts
index 10d4ad8b..cebcee28 100644
--- a/src/api/resources/empathicVoice/types/AssistantEnd.ts
+++ b/src/api/resources/empathicVoice/types/AssistantEnd.ts
@@ -2,6 +2,10 @@
  * This file was auto-generated by Fern from our API Definition.
  */
 
+/**
+ * When provided, the output is an assistant end message.
+ */
 export interface AssistantEnd {
+    customSessionId?: string;
     type: "assistant_end";
 }
diff --git a/src/api/resources/empathicVoice/types/AssistantInput.ts b/src/api/resources/empathicVoice/types/AssistantInput.ts
new file mode 100644
index 00000000..39229f65
--- /dev/null
+++ b/src/api/resources/empathicVoice/types/AssistantInput.ts
@@ -0,0 +1,13 @@
+/**
+ * This file was auto-generated by Fern from our API Definition.
+ */
+
+/**
+ * When provided, the input is spoken by EVI.
+ */
+export interface AssistantInput {
+    customSessionId?: string;
+    /** Text to be synthesized. */
+    text: string;
+    type: "assistant_input";
+}
diff --git a/src/api/resources/empathicVoice/types/AssistantMessage.ts b/src/api/resources/empathicVoice/types/AssistantMessage.ts
index 5d7b4268..0fa65bb0 100644
--- a/src/api/resources/empathicVoice/types/AssistantMessage.ts
+++ b/src/api/resources/empathicVoice/types/AssistantMessage.ts
@@ -4,9 +4,13 @@
 
 import * as Hume from "../../..";
 
+/**
+ * When provided, the output is an assistant message.
+ */
 export interface AssistantMessage {
-    /** Indicates if this message was constructed from a TtsInput message. */
-    fromTts: boolean;
+    customSessionId?: string;
+    /** Indicates if this message was constructed from a text input message. */
+    fromText: boolean;
     /** ID of the assistant message. */
     id?: string;
     /** Transcript of the message. */
diff --git a/src/api/resources/empathicVoice/types/AudioInput.ts b/src/api/resources/empathicVoice/types/AudioInput.ts
index b482aa6f..0c13ab9f 100644
--- a/src/api/resources/empathicVoice/types/AudioInput.ts
+++ b/src/api/resources/empathicVoice/types/AudioInput.ts
@@ -2,7 +2,11 @@
  * This file was auto-generated by Fern from our API Definition.
  */
 
+/**
+ * When provided, the input is audio.
+ */
 export interface AudioInput {
+    customSessionId?: string;
     /** Base64 encoded audio input. */
     data: string;
     type: "audio_input";
diff --git a/src/api/resources/empathicVoice/types/AudioOutput.ts b/src/api/resources/empathicVoice/types/AudioOutput.ts
index 23ca12c7..450bd5f7 100644
--- a/src/api/resources/empathicVoice/types/AudioOutput.ts
+++ b/src/api/resources/empathicVoice/types/AudioOutput.ts
@@ -2,8 +2,12 @@
  * This file was auto-generated by Fern from our API Definition.
  */
 
+/**
+ * When provided, the output is audio.
+ */
 export interface AudioOutput {
-    /** Base64 encoded Linear16 PCM output. */
+    customSessionId?: string;
+    /** Base64 encoded audio output. */
     data: string;
     /** ID of the audio output. */
     id: string;
diff --git a/src/api/resources/empathicVoice/types/Error_.ts b/src/api/resources/empathicVoice/types/Error_.ts
index 873125be..fd06be0c 100644
--- a/src/api/resources/empathicVoice/types/Error_.ts
+++ b/src/api/resources/empathicVoice/types/Error_.ts
@@ -2,9 +2,13 @@
  * This file was auto-generated by Fern from our API Definition.
  */
 
+/**
+ * When provided, the output is an error message.
+ */
 export interface Error_ {
     /** Error code. */
     code: string;
+    customSessionId?: string;
     /** Error message. */
     message: string;
     /** Error slug. */
diff --git a/src/api/resources/empathicVoice/types/SessionSettings.ts b/src/api/resources/empathicVoice/types/SessionSettings.ts
index 97bbcedf..2cd01588 100644
--- a/src/api/resources/empathicVoice/types/SessionSettings.ts
+++ b/src/api/resources/empathicVoice/types/SessionSettings.ts
@@ -4,8 +4,13 @@
 
 import * as Hume from "../../..";
 
+/**
+ * Settings for this chat session.
+ */
 export interface SessionSettings {
+    customSessionId?: string;
     audio?: Hume.empathicVoice.AudioConfiguration;
     languageModelApiKey?: string;
-    type?: "session_settings";
+    systemPrompt?: string;
+    type: "session_settings";
 }
diff --git a/src/api/resources/empathicVoice/types/TextInput.ts b/src/api/resources/empathicVoice/types/TextInput.ts
index c5d5e995..6e8ea6e4 100644
--- a/src/api/resources/empathicVoice/types/TextInput.ts
+++ b/src/api/resources/empathicVoice/types/TextInput.ts
@@ -3,7 +3,5 @@
  */
 
 export interface TextInput {
-    /** Text to insert into the conversation. */
-    text: string;
-    type: "user_input";
+    type?: "text_input";
 }
diff --git a/src/api/resources/empathicVoice/types/TtsInput.ts b/src/api/resources/empathicVoice/types/TtsInput.ts
index d1e7a900..d7ff426a 100644
--- a/src/api/resources/empathicVoice/types/TtsInput.ts
+++ b/src/api/resources/empathicVoice/types/TtsInput.ts
@@ -3,7 +3,5 @@
  */
 
 export interface TtsInput {
-    /** Text to be synthesized. */
-    text: string;
-    type: "assistant_input";
+    type?: "tts";
 }
diff --git a/src/api/resources/empathicVoice/types/UserInput.ts b/src/api/resources/empathicVoice/types/UserInput.ts
new file mode 100644
index 00000000..b076cf8b
--- /dev/null
+++ b/src/api/resources/empathicVoice/types/UserInput.ts
@@ -0,0 +1,13 @@
+/**
+ * This file was auto-generated by Fern from our API Definition.
+ */
+
+/**
+ * User text to insert into the conversation.
+ */
+export interface UserInput {
+    customSessionId?: string;
+    /** User text to insert into the conversation. */
+    text: string;
+    type: "user_input";
+}
diff --git a/src/api/resources/empathicVoice/types/UserInterruption.ts b/src/api/resources/empathicVoice/types/UserInterruption.ts
index 2d7266c1..f671a96a 100644
--- a/src/api/resources/empathicVoice/types/UserInterruption.ts
+++ b/src/api/resources/empathicVoice/types/UserInterruption.ts
@@ -2,7 +2,11 @@
  * This file was auto-generated by Fern from our API Definition.
  */
 
+/**
+ * When provided, the output is an interruption.
+ */
 export interface UserInterruption {
+    customSessionId?: string;
     time: number;
     type: "user_interruption";
 }
diff --git a/src/api/resources/empathicVoice/types/UserMessage.ts b/src/api/resources/empathicVoice/types/UserMessage.ts
index 48785d3e..2b401313 100644
--- a/src/api/resources/empathicVoice/types/UserMessage.ts
+++ b/src/api/resources/empathicVoice/types/UserMessage.ts
@@ -4,15 +4,17 @@
 
 import * as Hume from "../../..";
 
+/**
+ * When provided, the output is a user message.
+ */
 export interface UserMessage {
+    customSessionId?: string;
     /** Indicates if this message was constructed from a text input message. */
     fromText: boolean;
     /** Transcript of the message. */
     message: Hume.empathicVoice.ChatMessage;
     /** Inference model results. */
     models: Hume.empathicVoice.Inference;
-    /** Segments of the user message. */
-    serializedSegments: Record<string, unknown>[];
     /** Start and End time of user message. */
     time: Hume.empathicVoice.MillisecondInterval;
     type: "user_message";
diff --git a/src/api/resources/empathicVoice/types/index.ts b/src/api/resources/empathicVoice/types/index.ts
index 19a1f6ce..4e23af8c 100644
--- a/src/api/resources/empathicVoice/types/index.ts
+++ b/src/api/resources/empathicVoice/types/index.ts
@@ -21,6 +21,7 @@ export * from "./ReturnChatWithPagedEvents";
 export * from "./ReturnActiveChatCount";
 export * from "./ReturnActiveChatCountPerTag";
 export * from "./AssistantEnd";
+export * from "./AssistantInput";
 export * from "./AssistantMessage";
 export * from "./AudioConfiguration";
 export * from "./AudioInput";
@@ -34,8 +35,9 @@ export * from "./MillisecondInterval";
 export * from "./ProsodyInference";
 export * from "./Role";
 export * from "./SessionSettings";
-export * from "./TextInput";
-export * from "./TtsInput";
+export * from "./UserInput";
 export * from "./UserInterruption";
 export * from "./UserMessage";
+export * from "./TtsInput";
+export * from "./TextInput";
 export * from "./FunctionCallResponseInput";
diff --git a/src/api/resources/index.ts b/src/api/resources/index.ts
index b3d4203d..5c8a6f07 100644
--- a/src/api/resources/index.ts
+++ b/src/api/resources/index.ts
@@ -1,3 +1,3 @@
-export * as customModels from "./customModels";
 export * as empathicVoice from "./empathicVoice";
+export * as customModels from "./customModels";
 export * as expressionMeasurement from "./expressionMeasurement";
diff --git a/src/serialization/resources/empathicVoice/resources/chat/types/PublishEvent.ts b/src/serialization/resources/empathicVoice/resources/chat/types/PublishEvent.ts
index a2d80cdb..387c88bc 100644
--- a/src/serialization/resources/empathicVoice/resources/chat/types/PublishEvent.ts
+++ b/src/serialization/resources/empathicVoice/resources/chat/types/PublishEvent.ts
@@ -7,14 +7,14 @@ import * as Hume from "../../../../../../api";
 import * as core from "../../../../../../core";
 import { AudioInput } from "../../../types/AudioInput";
 import { SessionSettings } from "../../../types/SessionSettings";
-import { TextInput } from "../../../types/TextInput";
-import { TtsInput } from "../../../types/TtsInput";
+import { UserInput } from "../../../types/UserInput";
+import { AssistantInput } from "../../../types/AssistantInput";
 
 export const PublishEvent: core.serialization.Schema<
     serializers.empathicVoice.PublishEvent.Raw,
     Hume.empathicVoice.PublishEvent
-> = core.serialization.undiscriminatedUnion([AudioInput, SessionSettings, TextInput, TtsInput]);
+> = core.serialization.undiscriminatedUnion([AudioInput, SessionSettings, UserInput, AssistantInput]);
 
 export declare namespace PublishEvent {
-    type Raw = AudioInput.Raw | SessionSettings.Raw | TextInput.Raw | TtsInput.Raw;
+    type Raw = AudioInput.Raw | SessionSettings.Raw | UserInput.Raw | AssistantInput.Raw;
 }
diff --git a/src/serialization/resources/empathicVoice/types/AssistantEnd.ts b/src/serialization/resources/empathicVoice/types/AssistantEnd.ts
index 33a13a62..262e644d 100644
--- a/src/serialization/resources/empathicVoice/types/AssistantEnd.ts
+++ b/src/serialization/resources/empathicVoice/types/AssistantEnd.ts
@@ -10,11 +10,13 @@ export const AssistantEnd: core.serialization.ObjectSchema<
     serializers.empathicVoice.AssistantEnd.Raw,
     Hume.empathicVoice.AssistantEnd
 > = core.serialization.object({
+    customSessionId: core.serialization.property("custom_session_id", core.serialization.string().optional()),
     type: core.serialization.stringLiteral("assistant_end"),
 });
 
 export declare namespace AssistantEnd {
     interface Raw {
+        custom_session_id?: string | null;
         type: "assistant_end";
     }
 }
diff --git a/src/serialization/resources/empathicVoice/types/AssistantInput.ts b/src/serialization/resources/empathicVoice/types/AssistantInput.ts
new file mode 100644
index 00000000..258e8f0a
--- /dev/null
+++ b/src/serialization/resources/empathicVoice/types/AssistantInput.ts
@@ -0,0 +1,24 @@
+/**
+ * This file was auto-generated by Fern from our API Definition.
+ */
+
+import * as serializers from "../../..";
+import * as Hume from "../../../../api";
+import * as core from "../../../../core";
+
+export const AssistantInput: core.serialization.ObjectSchema<
+    serializers.empathicVoice.AssistantInput.Raw,
+    Hume.empathicVoice.AssistantInput
+> = core.serialization.object({
+    customSessionId: core.serialization.property("custom_session_id", core.serialization.string().optional()),
+    text: core.serialization.string(),
+    type: core.serialization.stringLiteral("assistant_input"),
+});
+
+export declare namespace AssistantInput {
+    interface Raw {
+        custom_session_id?: string | null;
+        text: string;
+        type: "assistant_input";
+    }
+}
diff --git a/src/serialization/resources/empathicVoice/types/AssistantMessage.ts b/src/serialization/resources/empathicVoice/types/AssistantMessage.ts
index f5862352..530e6a1b 100644
--- a/src/serialization/resources/empathicVoice/types/AssistantMessage.ts
+++ b/src/serialization/resources/empathicVoice/types/AssistantMessage.ts
@@ -12,7 +12,8 @@ export const AssistantMessage: core.serialization.ObjectSchema<
     serializers.empathicVoice.AssistantMessage.Raw,
     Hume.empathicVoice.AssistantMessage
 > = core.serialization.object({
-    fromTts: core.serialization.property("from_tts", core.serialization.boolean()),
+    customSessionId: core.serialization.property("custom_session_id", core.serialization.string().optional()),
+    fromText: core.serialization.property("from_text", core.serialization.boolean()),
     id: core.serialization.string().optional(),
     message: ChatMessage,
     models: Inference,
@@ -21,7 +22,8 @@ export const AssistantMessage: core.serialization.ObjectSchema<
 
 export declare namespace AssistantMessage {
     interface Raw {
-        from_tts: boolean;
+        custom_session_id?: string | null;
+        from_text: boolean;
         id?: string | null;
         message: ChatMessage.Raw;
         models: Inference.Raw;
diff --git a/src/serialization/resources/empathicVoice/types/AudioInput.ts b/src/serialization/resources/empathicVoice/types/AudioInput.ts
index 86202d1d..210c558d 100644
--- a/src/serialization/resources/empathicVoice/types/AudioInput.ts
+++ b/src/serialization/resources/empathicVoice/types/AudioInput.ts
@@ -10,12 +10,14 @@ export const AudioInput: core.serialization.ObjectSchema<
     serializers.empathicVoice.AudioInput.Raw,
     Hume.empathicVoice.AudioInput
 > = core.serialization.object({
+    customSessionId: core.serialization.property("custom_session_id", core.serialization.string().optional()),
     data: core.serialization.string(),
     type: core.serialization.stringLiteral("audio_input"),
 });
 
 export declare namespace AudioInput {
     interface Raw {
+        custom_session_id?: string | null;
         data: string;
         type: "audio_input";
     }
diff --git a/src/serialization/resources/empathicVoice/types/AudioOutput.ts b/src/serialization/resources/empathicVoice/types/AudioOutput.ts
index be856272..e1c82144 100644
--- a/src/serialization/resources/empathicVoice/types/AudioOutput.ts
+++ b/src/serialization/resources/empathicVoice/types/AudioOutput.ts
@@ -10,6 +10,7 @@ export const AudioOutput: core.serialization.ObjectSchema<
     serializers.empathicVoice.AudioOutput.Raw,
     Hume.empathicVoice.AudioOutput
 > = core.serialization.object({
+    customSessionId: core.serialization.property("custom_session_id", core.serialization.string().optional()),
     data: core.serialization.string(),
     id: core.serialization.string(),
     type: core.serialization.stringLiteral("audio_output"),
@@ -17,6 +18,7 @@ export const AudioOutput: core.serialization.ObjectSchema<
 
 export declare namespace AudioOutput {
     interface Raw {
+        custom_session_id?: string | null;
         data: string;
         id: string;
         type: "audio_output";
diff --git a/src/serialization/resources/empathicVoice/types/Error_.ts b/src/serialization/resources/empathicVoice/types/Error_.ts
index 1e58e706..69fcec75 100644
--- a/src/serialization/resources/empathicVoice/types/Error_.ts
+++ b/src/serialization/resources/empathicVoice/types/Error_.ts
@@ -9,6 +9,7 @@ import * as core from "../../../../core";
 export const Error_: core.serialization.ObjectSchema<serializers.empathicVoice.Error_.Raw, Hume.empathicVoice.Error_> =
     core.serialization.object({
         code: core.serialization.string(),
+        customSessionId: core.serialization.property("custom_session_id", core.serialization.string().optional()),
         message: core.serialization.string(),
         slug: core.serialization.string(),
         type: core.serialization.stringLiteral("error"),
@@ -17,6 +18,7 @@ export const Error_: core.serialization.ObjectSchema<serializers.empathicVoice.E
 export declare namespace Error_ {
     interface Raw {
         code: string;
+        custom_session_id?: string | null;
         message: string;
         slug: string;
         type: "error";
diff --git a/src/serialization/resources/empathicVoice/types/SessionSettings.ts b/src/serialization/resources/empathicVoice/types/SessionSettings.ts
index edad0802..4fd31d0f 100644
--- a/src/serialization/resources/empathicVoice/types/SessionSettings.ts
+++ b/src/serialization/resources/empathicVoice/types/SessionSettings.ts
@@ -11,15 +11,19 @@ export const SessionSettings: core.serialization.ObjectSchema<
     serializers.empathicVoice.SessionSettings.Raw,
     Hume.empathicVoice.SessionSettings
 > = core.serialization.object({
+    customSessionId: core.serialization.property("custom_session_id", core.serialization.string().optional()),
     audio: AudioConfiguration.optional(),
     languageModelApiKey: core.serialization.property("language_model_api_key", core.serialization.string().optional()),
-    type: core.serialization.stringLiteral("session_settings").optional(),
+    systemPrompt: core.serialization.property("system_prompt", core.serialization.string().optional()),
+    type: core.serialization.stringLiteral("session_settings"),
 });
 
 export declare namespace SessionSettings {
     interface Raw {
+        custom_session_id?: string | null;
         audio?: AudioConfiguration.Raw | null;
         language_model_api_key?: string | null;
-        type?: "session_settings" | null;
+        system_prompt?: string | null;
+        type: "session_settings";
     }
 }
diff --git a/src/serialization/resources/empathicVoice/types/TextInput.ts b/src/serialization/resources/empathicVoice/types/TextInput.ts
index 6fdd6b0b..6f0500da 100644
--- a/src/serialization/resources/empathicVoice/types/TextInput.ts
+++ b/src/serialization/resources/empathicVoice/types/TextInput.ts
@@ -10,13 +10,11 @@ export const TextInput: core.serialization.ObjectSchema<
     serializers.empathicVoice.TextInput.Raw,
     Hume.empathicVoice.TextInput
 > = core.serialization.object({
-    text: core.serialization.string(),
-    type: core.serialization.stringLiteral("user_input"),
+    type: core.serialization.stringLiteral("text_input").optional(),
 });
 
 export declare namespace TextInput {
     interface Raw {
-        text: string;
-        type: "user_input";
+        type?: "text_input" | null;
     }
 }
diff --git a/src/serialization/resources/empathicVoice/types/TtsInput.ts b/src/serialization/resources/empathicVoice/types/TtsInput.ts
index 3dce542d..4d2b3aec 100644
--- a/src/serialization/resources/empathicVoice/types/TtsInput.ts
+++ b/src/serialization/resources/empathicVoice/types/TtsInput.ts
@@ -10,13 +10,11 @@ export const TtsInput: core.serialization.ObjectSchema<
     serializers.empathicVoice.TtsInput.Raw,
     Hume.empathicVoice.TtsInput
 > = core.serialization.object({
-    text: core.serialization.string(),
-    type: core.serialization.stringLiteral("assistant_input"),
+    type: core.serialization.stringLiteral("tts").optional(),
 });
 
 export declare namespace TtsInput {
     interface Raw {
-        text: string;
-        type: "assistant_input";
+        type?: "tts" | null;
     }
 }
diff --git a/src/serialization/resources/empathicVoice/types/UserInput.ts b/src/serialization/resources/empathicVoice/types/UserInput.ts
new file mode 100644
index 00000000..69d8d99e
--- /dev/null
+++ b/src/serialization/resources/empathicVoice/types/UserInput.ts
@@ -0,0 +1,24 @@
+/**
+ * This file was auto-generated by Fern from our API Definition.
+ */
+
+import * as serializers from "../../..";
+import * as Hume from "../../../../api";
+import * as core from "../../../../core";
+
+export const UserInput: core.serialization.ObjectSchema<
+    serializers.empathicVoice.UserInput.Raw,
+    Hume.empathicVoice.UserInput
+> = core.serialization.object({
+    customSessionId: core.serialization.property("custom_session_id", core.serialization.string().optional()),
+    text: core.serialization.string(),
+    type: core.serialization.stringLiteral("user_input"),
+});
+
+export declare namespace UserInput {
+    interface Raw {
+        custom_session_id?: string | null;
+        text: string;
+        type: "user_input";
+    }
+}
diff --git a/src/serialization/resources/empathicVoice/types/UserInterruption.ts b/src/serialization/resources/empathicVoice/types/UserInterruption.ts
index 5205b5a5..894f54ec 100644
--- a/src/serialization/resources/empathicVoice/types/UserInterruption.ts
+++ b/src/serialization/resources/empathicVoice/types/UserInterruption.ts
@@ -10,12 +10,14 @@ export const UserInterruption: core.serialization.ObjectSchema<
     serializers.empathicVoice.UserInterruption.Raw,
     Hume.empathicVoice.UserInterruption
 > = core.serialization.object({
+    customSessionId: core.serialization.property("custom_session_id", core.serialization.string().optional()),
     time: core.serialization.number(),
     type: core.serialization.stringLiteral("user_interruption"),
 });
 
 export declare namespace UserInterruption {
     interface Raw {
+        custom_session_id?: string | null;
         time: number;
         type: "user_interruption";
     }
diff --git a/src/serialization/resources/empathicVoice/types/UserMessage.ts b/src/serialization/resources/empathicVoice/types/UserMessage.ts
index 0a8ff55b..74293008 100644
--- a/src/serialization/resources/empathicVoice/types/UserMessage.ts
+++ b/src/serialization/resources/empathicVoice/types/UserMessage.ts
@@ -13,23 +13,20 @@ export const UserMessage: core.serialization.ObjectSchema<
     serializers.empathicVoice.UserMessage.Raw,
     Hume.empathicVoice.UserMessage
 > = core.serialization.object({
+    customSessionId: core.serialization.property("custom_session_id", core.serialization.string().optional()),
     fromText: core.serialization.property("from_text", core.serialization.boolean()),
     message: ChatMessage,
     models: Inference,
-    serializedSegments: core.serialization.property(
-        "serialized_segments",
-        core.serialization.list(core.serialization.record(core.serialization.string(), core.serialization.unknown()))
-    ),
     time: MillisecondInterval,
     type: core.serialization.stringLiteral("user_message"),
 });
 
 export declare namespace UserMessage {
     interface Raw {
+        custom_session_id?: string | null;
         from_text: boolean;
         message: ChatMessage.Raw;
         models: Inference.Raw;
-        serialized_segments: Record<string, unknown>[];
         time: MillisecondInterval.Raw;
         type: "user_message";
     }
diff --git a/src/serialization/resources/empathicVoice/types/index.ts b/src/serialization/resources/empathicVoice/types/index.ts
index 19a1f6ce..4e23af8c 100644
--- a/src/serialization/resources/empathicVoice/types/index.ts
+++ b/src/serialization/resources/empathicVoice/types/index.ts
@@ -21,6 +21,7 @@ export * from "./ReturnChatWithPagedEvents";
 export * from "./ReturnActiveChatCount";
 export * from "./ReturnActiveChatCountPerTag";
 export * from "./AssistantEnd";
+export * from "./AssistantInput";
 export * from "./AssistantMessage";
 export * from "./AudioConfiguration";
 export * from "./AudioInput";
@@ -34,8 +35,9 @@ export * from "./MillisecondInterval";
 export * from "./ProsodyInference";
 export * from "./Role";
 export * from "./SessionSettings";
-export * from "./TextInput";
-export * from "./TtsInput";
+export * from "./UserInput";
 export * from "./UserInterruption";
 export * from "./UserMessage";
+export * from "./TtsInput";
+export * from "./TextInput";
 export * from "./FunctionCallResponseInput";
diff --git a/src/serialization/resources/index.ts b/src/serialization/resources/index.ts
index b3d4203d..5c8a6f07 100644
--- a/src/serialization/resources/index.ts
+++ b/src/serialization/resources/index.ts
@@ -1,3 +1,3 @@
-export * as customModels from "./customModels";
 export * as empathicVoice from "./empathicVoice";
+export * as customModels from "./customModels";
 export * as expressionMeasurement from "./expressionMeasurement";
diff --git a/yarn.lock b/yarn.lock
index b8718bd8..bfdd4df5 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1030,9 +1030,9 @@ diff-sequences@^29.6.3:
   integrity sha512-EjePK1srD3P08o2j4f0ExnylqRs5B9tJjcp9t1krH2qRi8CCdsYfwe9JgSLurFBWwq4uOlipzfk5fHNvwFKr8Q==
 
 electron-to-chromium@^1.4.668:
-  version "1.4.749"
-  resolved "https://registry.yarnpkg.com/electron-to-chromium/-/electron-to-chromium-1.4.749.tgz#9869e2e258141da26a2272b58264584c3461279d"
-  integrity sha512-LRMMrM9ITOvue0PoBrvNIraVmuDbJV5QC9ierz/z5VilMdPOVMjOtpICNld3PuXuTZ3CHH/UPxX9gHhAPwi+0Q==
+  version "1.4.750"
+  resolved "https://registry.yarnpkg.com/electron-to-chromium/-/electron-to-chromium-1.4.750.tgz#d278a619af727ed069de1317115187282b1131ee"
+  integrity sha512-9ItEpeu15hW5m8jKdriL+BQrgwDTXEL9pn4SkillWFu73ZNNNQ2BKKLS+ZHv2vC9UkNhosAeyfxOf/5OSeTCPA==
 
 emittery@^0.13.1:
   version "0.13.1"