chore: regenerate texttospeech client (#29408)

Generated in GitHub action: https://togithub.com/googleapis/googleapis/google-api-java-client-services/actions/workflows/codegen.yaml

Author: yoshi-code-bot

clients/google-api-services-texttospeech/v1/2.0.0/README.md

@@ -22,7 +22,7 @@ Add the following lines to your `pom.xml` file:
     <dependency>
       <groupId>com.google.apis</groupId>
       <artifactId>google-api-services-texttospeech</artifactId>
-      <version>v1-rev20250805-2.0.0</version>
+      <version>v1-rev20250903-2.0.0</version>
     </dependency>
   </dependencies>
 </project>
@@ -35,7 +35,7 @@ repositories {
   mavenCentral()
 }
 dependencies {
-  implementation 'com.google.apis:google-api-services-texttospeech:v1-rev20250805-2.0.0'
+  implementation 'com.google.apis:google-api-services-texttospeech:v1-rev20250903-2.0.0'
 }
 ```
 

clients/google-api-services-texttospeech/v1/2.0.0/com/google/api/services/texttospeech/v1/model/SynthesisInput.java

@@ -56,6 +56,14 @@ public final class SynthesisInput extends com.google.api.client.json.GenericJson
   @com.google.api.client.util.Key
   private MultiSpeakerMarkup multiSpeakerMarkup;
 
+  /**
+   * This is system instruction supported only for controllable voice models. If used, we will pass
+   * text to Flash TTS as is. Can only used with Flash TTS. What AI Studio calls Style Instructions.
+   * The value may be {@code null}.
+   */
+  @com.google.api.client.util.Key
+  private java.lang.String prompt;
+
   /**
    * The SSML document to be synthesized. The SSML document must be valid and well-formed. Otherwise
    * the RPC will fail and return google.rpc.Code.INVALID_ARGUMENT. For more information, see
@@ -131,6 +139,25 @@ public SynthesisInput setMultiSpeakerMarkup(MultiSpeakerMarkup multiSpeakerMarku
     return this;
   }
 
+  /**
+   * This is system instruction supported only for controllable voice models. If used, we will pass
+   * text to Flash TTS as is. Can only used with Flash TTS. What AI Studio calls Style Instructions.
+   * @return value or {@code null} for none
+   */
+  public java.lang.String getPrompt() {
+    return prompt;
+  }
+
+  /**
+   * This is system instruction supported only for controllable voice models. If used, we will pass
+   * text to Flash TTS as is. Can only used with Flash TTS. What AI Studio calls Style Instructions.
+   * @param prompt prompt or {@code null} for none
+   */
+  public SynthesisInput setPrompt(java.lang.String prompt) {
+    this.prompt = prompt;
+    return this;
+  }
+
   /**
    * The SSML document to be synthesized. The SSML document must be valid and well-formed. Otherwise
    * the RPC will fail and return google.rpc.Code.INVALID_ARGUMENT. For more information, see

clients/google-api-services-texttospeech/v1/2.0.0/pom.xml

@@ -8,8 +8,8 @@
 
   <groupId>com.google.apis</groupId>
   <artifactId>google-api-services-texttospeech</artifactId>
-  <version>v1-rev20250805-2.0.0</version>
-  <name>Cloud Text-to-Speech API v1-rev20250805-2.0.0</name>
+  <version>v1-rev20250903-2.0.0</version>
+  <name>Cloud Text-to-Speech API v1-rev20250903-2.0.0</name>
   <packaging>jar</packaging>
 
   <inceptionYear>2011</inceptionYear>

clients/google-api-services-texttospeech/v1/README.md

@@ -22,7 +22,7 @@ Add the following lines to your `pom.xml` file:
     <dependency>
       <groupId>com.google.apis</groupId>
       <artifactId>google-api-services-texttospeech</artifactId>
-      <version>v1-rev20250805-2.0.0</version>
+      <version>v1-rev20250903-2.0.0</version>
     </dependency>
   </dependencies>
 </project>
@@ -35,7 +35,7 @@ repositories {
   mavenCentral()
 }
 dependencies {
-  implementation 'com.google.apis:google-api-services-texttospeech:v1-rev20250805-2.0.0'
+  implementation 'com.google.apis:google-api-services-texttospeech:v1-rev20250903-2.0.0'
 }
 ```
 

clients/google-api-services-texttospeech/v1beta1/2.0.0/README.md

@@ -22,7 +22,7 @@ Add the following lines to your `pom.xml` file:
     <dependency>
       <groupId>com.google.apis</groupId>
       <artifactId>google-api-services-texttospeech</artifactId>
-      <version>v1beta1-rev20250805-2.0.0</version>
+      <version>v1beta1-rev20250903-2.0.0</version>
     </dependency>
   </dependencies>
 </project>
@@ -35,7 +35,7 @@ repositories {
   mavenCentral()
 }
 dependencies {
-  implementation 'com.google.apis:google-api-services-texttospeech:v1beta1-rev20250805-2.0.0'
+  implementation 'com.google.apis:google-api-services-texttospeech:v1beta1-rev20250903-2.0.0'
 }
 ```
 

clients/google-api-services-texttospeech/v1beta1/2.0.0/com/google/api/services/texttospeech/v1beta1/model/SynthesisInput.java

@@ -56,6 +56,14 @@ public final class SynthesisInput extends com.google.api.client.json.GenericJson
   @com.google.api.client.util.Key
   private MultiSpeakerMarkup multiSpeakerMarkup;
 
+  /**
+   * This is system instruction supported only for controllable voice models. If used, we will pass
+   * text to Flash TTS as is. Can only used with Flash TTS. What AI Studio calls Style Instructions.
+   * The value may be {@code null}.
+   */
+  @com.google.api.client.util.Key
+  private java.lang.String prompt;
+
   /**
    * The SSML document to be synthesized. The SSML document must be valid and well-formed. Otherwise
    * the RPC will fail and return google.rpc.Code.INVALID_ARGUMENT. For more information, see
@@ -131,6 +139,25 @@ public SynthesisInput setMultiSpeakerMarkup(MultiSpeakerMarkup multiSpeakerMarku
     return this;
   }
 
+  /**
+   * This is system instruction supported only for controllable voice models. If used, we will pass
+   * text to Flash TTS as is. Can only used with Flash TTS. What AI Studio calls Style Instructions.
+   * @return value or {@code null} for none
+   */
+  public java.lang.String getPrompt() {
+    return prompt;
+  }
+
+  /**
+   * This is system instruction supported only for controllable voice models. If used, we will pass
+   * text to Flash TTS as is. Can only used with Flash TTS. What AI Studio calls Style Instructions.
+   * @param prompt prompt or {@code null} for none
+   */
+  public SynthesisInput setPrompt(java.lang.String prompt) {
+    this.prompt = prompt;
+    return this;
+  }
+
   /**
    * The SSML document to be synthesized. The SSML document must be valid and well-formed. Otherwise
    * the RPC will fail and return google.rpc.Code.INVALID_ARGUMENT. For more information, see

clients/google-api-services-texttospeech/v1beta1/2.0.0/pom.xml

@@ -8,8 +8,8 @@
 
   <groupId>com.google.apis</groupId>
   <artifactId>google-api-services-texttospeech</artifactId>
-  <version>v1beta1-rev20250805-2.0.0</version>
-  <name>Cloud Text-to-Speech API v1beta1-rev20250805-2.0.0</name>
+  <version>v1beta1-rev20250903-2.0.0</version>
+  <name>Cloud Text-to-Speech API v1beta1-rev20250903-2.0.0</name>
   <packaging>jar</packaging>
 
   <inceptionYear>2011</inceptionYear>

clients/google-api-services-texttospeech/v1beta1/README.md

@@ -22,7 +22,7 @@ Add the following lines to your `pom.xml` file:
     <dependency>
       <groupId>com.google.apis</groupId>
       <artifactId>google-api-services-texttospeech</artifactId>
-      <version>v1beta1-rev20250805-2.0.0</version>
+      <version>v1beta1-rev20250903-2.0.0</version>
     </dependency>
   </dependencies>
 </project>
@@ -35,7 +35,7 @@ repositories {
   mavenCentral()
 }
 dependencies {
-  implementation 'com.google.apis:google-api-services-texttospeech:v1beta1-rev20250805-2.0.0'
+  implementation 'com.google.apis:google-api-services-texttospeech:v1beta1-rev20250903-2.0.0'
 }
 ```