diff --git a/java-dialogflow-cx/README.md b/java-dialogflow-cx/README.md
index 902b0fecf935..bef57de8b44b 100644
--- a/java-dialogflow-cx/README.md
+++ b/java-dialogflow-cx/README.md
@@ -23,20 +23,20 @@ If you are using Maven, add this to your pom.xml file:
 <dependency>
   <groupId>com.google.cloud</groupId>
   <artifactId>google-cloud-dialogflow-cx</artifactId>
-  <version>0.20.0</version>
+  <version>0.22.0</version>
 </dependency>
 ```
 
 If you are using Gradle without BOM, add this to your dependencies:
 
 ```Groovy
-implementation 'com.google.cloud:google-cloud-dialogflow-cx:0.20.0'
+implementation 'com.google.cloud:google-cloud-dialogflow-cx:0.22.0'
 ```
 
 If you are using SBT, add this to your dependencies:
 
 ```Scala
-libraryDependencies += "com.google.cloud" % "google-cloud-dialogflow-cx" % "0.20.0"
+libraryDependencies += "com.google.cloud" % "google-cloud-dialogflow-cx" % "0.22.0"
 ```
 <!--- {x-version-update-end} -->
 
diff --git a/java-dialogflow-cx/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3/SessionsClient.java b/java-dialogflow-cx/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3/SessionsClient.java
index e17b882da8af..11d895cb39f2 100644
--- a/java-dialogflow-cx/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3/SessionsClient.java
+++ b/java-dialogflow-cx/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3/SessionsClient.java
@@ -326,6 +326,7 @@ public final UnaryCallable<DetectIntentRequest, DetectIntentResponse> detectInte
    *                   .toString())
    *           .setQueryParams(QueryParameters.newBuilder().build())
    *           .setQueryInput(QueryInput.newBuilder().build())
+   *           .setPersistParameterChanges(true)
    *           .build();
    *   MatchIntentResponse response = sessionsClient.matchIntent(request);
    * }
@@ -359,6 +360,7 @@ public final MatchIntentResponse matchIntent(MatchIntentRequest request) {
    *                   .toString())
    *           .setQueryParams(QueryParameters.newBuilder().build())
    *           .setQueryInput(QueryInput.newBuilder().build())
+   *           .setPersistParameterChanges(true)
    *           .build();
    *   ApiFuture<MatchIntentResponse> future =
    *       sessionsClient.matchIntentCallable().futureCall(request);
diff --git a/java-dialogflow-cx/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3/AgentsClientHttpJsonTest.java b/java-dialogflow-cx/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3/AgentsClientHttpJsonTest.java
index 966660b67e3f..a241483b28e5 100644
--- a/java-dialogflow-cx/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3/AgentsClientHttpJsonTest.java
+++ b/java-dialogflow-cx/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3/AgentsClientHttpJsonTest.java
@@ -206,6 +206,7 @@ public void getAgentTest() throws Exception {
             .setEnableSpellCorrection(true)
             .setLocked(true)
             .setAdvancedSettings(AdvancedSettings.newBuilder().build())
+            .setTextToSpeechSettings(TextToSpeechSettings.newBuilder().build())
             .build();
     mockService.addResponse(expectedResponse);
 
@@ -265,6 +266,7 @@ public void getAgentTest2() throws Exception {
             .setEnableSpellCorrection(true)
             .setLocked(true)
             .setAdvancedSettings(AdvancedSettings.newBuilder().build())
+            .setTextToSpeechSettings(TextToSpeechSettings.newBuilder().build())
             .build();
     mockService.addResponse(expectedResponse);
 
@@ -324,6 +326,7 @@ public void createAgentTest() throws Exception {
             .setEnableSpellCorrection(true)
             .setLocked(true)
             .setAdvancedSettings(AdvancedSettings.newBuilder().build())
+            .setTextToSpeechSettings(TextToSpeechSettings.newBuilder().build())
             .build();
     mockService.addResponse(expectedResponse);
 
@@ -385,6 +388,7 @@ public void createAgentTest2() throws Exception {
             .setEnableSpellCorrection(true)
             .setLocked(true)
             .setAdvancedSettings(AdvancedSettings.newBuilder().build())
+            .setTextToSpeechSettings(TextToSpeechSettings.newBuilder().build())
             .build();
     mockService.addResponse(expectedResponse);
 
@@ -446,6 +450,7 @@ public void updateAgentTest() throws Exception {
             .setEnableSpellCorrection(true)
             .setLocked(true)
             .setAdvancedSettings(AdvancedSettings.newBuilder().build())
+            .setTextToSpeechSettings(TextToSpeechSettings.newBuilder().build())
             .build();
     mockService.addResponse(expectedResponse);
 
@@ -467,6 +472,7 @@ public void updateAgentTest() throws Exception {
             .setEnableSpellCorrection(true)
             .setLocked(true)
             .setAdvancedSettings(AdvancedSettings.newBuilder().build())
+            .setTextToSpeechSettings(TextToSpeechSettings.newBuilder().build())
             .build();
     FieldMask updateMask = FieldMask.newBuilder().build();
 
@@ -514,6 +520,7 @@ public void updateAgentExceptionTest() throws Exception {
               .setEnableSpellCorrection(true)
               .setLocked(true)
               .setAdvancedSettings(AdvancedSettings.newBuilder().build())
+              .setTextToSpeechSettings(TextToSpeechSettings.newBuilder().build())
               .build();
       FieldMask updateMask = FieldMask.newBuilder().build();
       client.updateAgent(agent, updateMask);
diff --git a/java-dialogflow-cx/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3/AgentsClientTest.java b/java-dialogflow-cx/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3/AgentsClientTest.java
index 1bdc165b3ee3..e7d5d57a7581 100644
--- a/java-dialogflow-cx/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3/AgentsClientTest.java
+++ b/java-dialogflow-cx/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3/AgentsClientTest.java
@@ -202,6 +202,7 @@ public void getAgentTest() throws Exception {
             .setEnableSpellCorrection(true)
             .setLocked(true)
             .setAdvancedSettings(AdvancedSettings.newBuilder().build())
+            .setTextToSpeechSettings(TextToSpeechSettings.newBuilder().build())
             .build();
     mockAgents.addResponse(expectedResponse);
 
@@ -255,6 +256,7 @@ public void getAgentTest2() throws Exception {
             .setEnableSpellCorrection(true)
             .setLocked(true)
             .setAdvancedSettings(AdvancedSettings.newBuilder().build())
+            .setTextToSpeechSettings(TextToSpeechSettings.newBuilder().build())
             .build();
     mockAgents.addResponse(expectedResponse);
 
@@ -308,6 +310,7 @@ public void createAgentTest() throws Exception {
             .setEnableSpellCorrection(true)
             .setLocked(true)
             .setAdvancedSettings(AdvancedSettings.newBuilder().build())
+            .setTextToSpeechSettings(TextToSpeechSettings.newBuilder().build())
             .build();
     mockAgents.addResponse(expectedResponse);
 
@@ -364,6 +367,7 @@ public void createAgentTest2() throws Exception {
             .setEnableSpellCorrection(true)
             .setLocked(true)
             .setAdvancedSettings(AdvancedSettings.newBuilder().build())
+            .setTextToSpeechSettings(TextToSpeechSettings.newBuilder().build())
             .build();
     mockAgents.addResponse(expectedResponse);
 
@@ -420,6 +424,7 @@ public void updateAgentTest() throws Exception {
             .setEnableSpellCorrection(true)
             .setLocked(true)
             .setAdvancedSettings(AdvancedSettings.newBuilder().build())
+            .setTextToSpeechSettings(TextToSpeechSettings.newBuilder().build())
             .build();
     mockAgents.addResponse(expectedResponse);
 
diff --git a/java-dialogflow-cx/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3/SessionsClientHttpJsonTest.java b/java-dialogflow-cx/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3/SessionsClientHttpJsonTest.java
index cae8e4b203c3..76f11a4a6f9c 100644
--- a/java-dialogflow-cx/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3/SessionsClientHttpJsonTest.java
+++ b/java-dialogflow-cx/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3/SessionsClientHttpJsonTest.java
@@ -171,6 +171,7 @@ public void matchIntentTest() throws Exception {
                     .toString())
             .setQueryParams(QueryParameters.newBuilder().build())
             .setQueryInput(QueryInput.newBuilder().build())
+            .setPersistParameterChanges(true)
             .build();
 
     MatchIntentResponse actualResponse = client.matchIntent(request);
@@ -207,6 +208,7 @@ public void matchIntentExceptionTest() throws Exception {
                       .toString())
               .setQueryParams(QueryParameters.newBuilder().build())
               .setQueryInput(QueryInput.newBuilder().build())
+              .setPersistParameterChanges(true)
               .build();
       client.matchIntent(request);
       Assert.fail("No exception raised");
@@ -236,6 +238,7 @@ public void fulfillIntentTest() throws Exception {
                             .toString())
                     .setQueryParams(QueryParameters.newBuilder().build())
                     .setQueryInput(QueryInput.newBuilder().build())
+                    .setPersistParameterChanges(true)
                     .build())
             .setMatch(Match.newBuilder().build())
             .setOutputAudioConfig(OutputAudioConfig.newBuilder().build())
@@ -277,6 +280,7 @@ public void fulfillIntentExceptionTest() throws Exception {
                               .toString())
                       .setQueryParams(QueryParameters.newBuilder().build())
                       .setQueryInput(QueryInput.newBuilder().build())
+                      .setPersistParameterChanges(true)
                       .build())
               .setMatch(Match.newBuilder().build())
               .setOutputAudioConfig(OutputAudioConfig.newBuilder().build())
diff --git a/java-dialogflow-cx/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3/SessionsClientTest.java b/java-dialogflow-cx/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3/SessionsClientTest.java
index 7f01fc5b51ef..72a775cba0d7 100644
--- a/java-dialogflow-cx/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3/SessionsClientTest.java
+++ b/java-dialogflow-cx/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3/SessionsClientTest.java
@@ -241,6 +241,7 @@ public void matchIntentTest() throws Exception {
                     .toString())
             .setQueryParams(QueryParameters.newBuilder().build())
             .setQueryInput(QueryInput.newBuilder().build())
+            .setPersistParameterChanges(true)
             .build();
 
     MatchIntentResponse actualResponse = client.matchIntent(request);
@@ -253,6 +254,8 @@ public void matchIntentTest() throws Exception {
     Assert.assertEquals(request.getSession(), actualRequest.getSession());
     Assert.assertEquals(request.getQueryParams(), actualRequest.getQueryParams());
     Assert.assertEquals(request.getQueryInput(), actualRequest.getQueryInput());
+    Assert.assertEquals(
+        request.getPersistParameterChanges(), actualRequest.getPersistParameterChanges());
     Assert.assertTrue(
         channelProvider.isHeaderSent(
             ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
@@ -273,6 +276,7 @@ public void matchIntentExceptionTest() throws Exception {
                       .toString())
               .setQueryParams(QueryParameters.newBuilder().build())
               .setQueryInput(QueryInput.newBuilder().build())
+              .setPersistParameterChanges(true)
               .build();
       client.matchIntent(request);
       Assert.fail("No exception raised");
diff --git a/java-dialogflow-cx/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/AgentsClientHttpJsonTest.java b/java-dialogflow-cx/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/AgentsClientHttpJsonTest.java
index 6c765fc17abe..64b8e1a70011 100644
--- a/java-dialogflow-cx/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/AgentsClientHttpJsonTest.java
+++ b/java-dialogflow-cx/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/AgentsClientHttpJsonTest.java
@@ -206,6 +206,7 @@ public void getAgentTest() throws Exception {
             .setEnableSpellCorrection(true)
             .setLocked(true)
             .setAdvancedSettings(AdvancedSettings.newBuilder().build())
+            .setTextToSpeechSettings(TextToSpeechSettings.newBuilder().build())
             .build();
     mockService.addResponse(expectedResponse);
 
@@ -265,6 +266,7 @@ public void getAgentTest2() throws Exception {
             .setEnableSpellCorrection(true)
             .setLocked(true)
             .setAdvancedSettings(AdvancedSettings.newBuilder().build())
+            .setTextToSpeechSettings(TextToSpeechSettings.newBuilder().build())
             .build();
     mockService.addResponse(expectedResponse);
 
@@ -324,6 +326,7 @@ public void createAgentTest() throws Exception {
             .setEnableSpellCorrection(true)
             .setLocked(true)
             .setAdvancedSettings(AdvancedSettings.newBuilder().build())
+            .setTextToSpeechSettings(TextToSpeechSettings.newBuilder().build())
             .build();
     mockService.addResponse(expectedResponse);
 
@@ -385,6 +388,7 @@ public void createAgentTest2() throws Exception {
             .setEnableSpellCorrection(true)
             .setLocked(true)
             .setAdvancedSettings(AdvancedSettings.newBuilder().build())
+            .setTextToSpeechSettings(TextToSpeechSettings.newBuilder().build())
             .build();
     mockService.addResponse(expectedResponse);
 
@@ -446,6 +450,7 @@ public void updateAgentTest() throws Exception {
             .setEnableSpellCorrection(true)
             .setLocked(true)
             .setAdvancedSettings(AdvancedSettings.newBuilder().build())
+            .setTextToSpeechSettings(TextToSpeechSettings.newBuilder().build())
             .build();
     mockService.addResponse(expectedResponse);
 
@@ -467,6 +472,7 @@ public void updateAgentTest() throws Exception {
             .setEnableSpellCorrection(true)
             .setLocked(true)
             .setAdvancedSettings(AdvancedSettings.newBuilder().build())
+            .setTextToSpeechSettings(TextToSpeechSettings.newBuilder().build())
             .build();
     FieldMask updateMask = FieldMask.newBuilder().build();
 
@@ -514,6 +520,7 @@ public void updateAgentExceptionTest() throws Exception {
               .setEnableSpellCorrection(true)
               .setLocked(true)
               .setAdvancedSettings(AdvancedSettings.newBuilder().build())
+              .setTextToSpeechSettings(TextToSpeechSettings.newBuilder().build())
               .build();
       FieldMask updateMask = FieldMask.newBuilder().build();
       client.updateAgent(agent, updateMask);
diff --git a/java-dialogflow-cx/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/AgentsClientTest.java b/java-dialogflow-cx/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/AgentsClientTest.java
index 3544f576fd89..9fd3fc6377c2 100644
--- a/java-dialogflow-cx/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/AgentsClientTest.java
+++ b/java-dialogflow-cx/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/AgentsClientTest.java
@@ -202,6 +202,7 @@ public void getAgentTest() throws Exception {
             .setEnableSpellCorrection(true)
             .setLocked(true)
             .setAdvancedSettings(AdvancedSettings.newBuilder().build())
+            .setTextToSpeechSettings(TextToSpeechSettings.newBuilder().build())
             .build();
     mockAgents.addResponse(expectedResponse);
 
@@ -255,6 +256,7 @@ public void getAgentTest2() throws Exception {
             .setEnableSpellCorrection(true)
             .setLocked(true)
             .setAdvancedSettings(AdvancedSettings.newBuilder().build())
+            .setTextToSpeechSettings(TextToSpeechSettings.newBuilder().build())
             .build();
     mockAgents.addResponse(expectedResponse);
 
@@ -308,6 +310,7 @@ public void createAgentTest() throws Exception {
             .setEnableSpellCorrection(true)
             .setLocked(true)
             .setAdvancedSettings(AdvancedSettings.newBuilder().build())
+            .setTextToSpeechSettings(TextToSpeechSettings.newBuilder().build())
             .build();
     mockAgents.addResponse(expectedResponse);
 
@@ -364,6 +367,7 @@ public void createAgentTest2() throws Exception {
             .setEnableSpellCorrection(true)
             .setLocked(true)
             .setAdvancedSettings(AdvancedSettings.newBuilder().build())
+            .setTextToSpeechSettings(TextToSpeechSettings.newBuilder().build())
             .build();
     mockAgents.addResponse(expectedResponse);
 
@@ -420,6 +424,7 @@ public void updateAgentTest() throws Exception {
             .setEnableSpellCorrection(true)
             .setLocked(true)
             .setAdvancedSettings(AdvancedSettings.newBuilder().build())
+            .setTextToSpeechSettings(TextToSpeechSettings.newBuilder().build())
             .build();
     mockAgents.addResponse(expectedResponse);
 
diff --git a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/AdvancedSettings.java b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/AdvancedSettings.java
index 819dc11d4ca0..c3b000555b5a 100644
--- a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/AdvancedSettings.java
+++ b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/AdvancedSettings.java
@@ -735,6 +735,69 @@ public com.google.protobuf.Parser<LoggingSettings> getParserForType() {
     }
   }
 
+  public static final int AUDIO_EXPORT_GCS_DESTINATION_FIELD_NUMBER = 2;
+  private com.google.cloud.dialogflow.cx.v3.GcsDestination audioExportGcsDestination_;
+  /**
+   *
+   *
+   * <pre>
+   * If present, incoming audio is exported by Dialogflow to the configured
+   * Google Cloud Storage destination.
+   * Exposed at the following levels:
+   * - Agent level
+   * - Flow level
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3.GcsDestination audio_export_gcs_destination = 2;</code>
+   *
+   * @return Whether the audioExportGcsDestination field is set.
+   */
+  @java.lang.Override
+  public boolean hasAudioExportGcsDestination() {
+    return audioExportGcsDestination_ != null;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * If present, incoming audio is exported by Dialogflow to the configured
+   * Google Cloud Storage destination.
+   * Exposed at the following levels:
+   * - Agent level
+   * - Flow level
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3.GcsDestination audio_export_gcs_destination = 2;</code>
+   *
+   * @return The audioExportGcsDestination.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3.GcsDestination getAudioExportGcsDestination() {
+    return audioExportGcsDestination_ == null
+        ? com.google.cloud.dialogflow.cx.v3.GcsDestination.getDefaultInstance()
+        : audioExportGcsDestination_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * If present, incoming audio is exported by Dialogflow to the configured
+   * Google Cloud Storage destination.
+   * Exposed at the following levels:
+   * - Agent level
+   * - Flow level
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3.GcsDestination audio_export_gcs_destination = 2;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3.GcsDestinationOrBuilder
+      getAudioExportGcsDestinationOrBuilder() {
+    return audioExportGcsDestination_ == null
+        ? com.google.cloud.dialogflow.cx.v3.GcsDestination.getDefaultInstance()
+        : audioExportGcsDestination_;
+  }
+
   public static final int LOGGING_SETTINGS_FIELD_NUMBER = 6;
   private com.google.cloud.dialogflow.cx.v3.AdvancedSettings.LoggingSettings loggingSettings_;
   /**
@@ -815,6 +878,9 @@ public final boolean isInitialized() {
 
   @java.lang.Override
   public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (audioExportGcsDestination_ != null) {
+      output.writeMessage(2, getAudioExportGcsDestination());
+    }
     if (loggingSettings_ != null) {
       output.writeMessage(6, getLoggingSettings());
     }
@@ -827,6 +893,11 @@ public int getSerializedSize() {
     if (size != -1) return size;
 
     size = 0;
+    if (audioExportGcsDestination_ != null) {
+      size +=
+          com.google.protobuf.CodedOutputStream.computeMessageSize(
+              2, getAudioExportGcsDestination());
+    }
     if (loggingSettings_ != null) {
       size += com.google.protobuf.CodedOutputStream.computeMessageSize(6, getLoggingSettings());
     }
@@ -846,6 +917,11 @@ public boolean equals(final java.lang.Object obj) {
     com.google.cloud.dialogflow.cx.v3.AdvancedSettings other =
         (com.google.cloud.dialogflow.cx.v3.AdvancedSettings) obj;
 
+    if (hasAudioExportGcsDestination() != other.hasAudioExportGcsDestination()) return false;
+    if (hasAudioExportGcsDestination()) {
+      if (!getAudioExportGcsDestination().equals(other.getAudioExportGcsDestination()))
+        return false;
+    }
     if (hasLoggingSettings() != other.hasLoggingSettings()) return false;
     if (hasLoggingSettings()) {
       if (!getLoggingSettings().equals(other.getLoggingSettings())) return false;
@@ -861,6 +937,10 @@ public int hashCode() {
     }
     int hash = 41;
     hash = (19 * hash) + getDescriptor().hashCode();
+    if (hasAudioExportGcsDestination()) {
+      hash = (37 * hash) + AUDIO_EXPORT_GCS_DESTINATION_FIELD_NUMBER;
+      hash = (53 * hash) + getAudioExportGcsDestination().hashCode();
+    }
     if (hasLoggingSettings()) {
       hash = (37 * hash) + LOGGING_SETTINGS_FIELD_NUMBER;
       hash = (53 * hash) + getLoggingSettings().hashCode();
@@ -1012,6 +1092,11 @@ private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
     public Builder clear() {
       super.clear();
       bitField0_ = 0;
+      audioExportGcsDestination_ = null;
+      if (audioExportGcsDestinationBuilder_ != null) {
+        audioExportGcsDestinationBuilder_.dispose();
+        audioExportGcsDestinationBuilder_ = null;
+      }
       loggingSettings_ = null;
       if (loggingSettingsBuilder_ != null) {
         loggingSettingsBuilder_.dispose();
@@ -1054,6 +1139,12 @@ public com.google.cloud.dialogflow.cx.v3.AdvancedSettings buildPartial() {
     private void buildPartial0(com.google.cloud.dialogflow.cx.v3.AdvancedSettings result) {
       int from_bitField0_ = bitField0_;
       if (((from_bitField0_ & 0x00000001) != 0)) {
+        result.audioExportGcsDestination_ =
+            audioExportGcsDestinationBuilder_ == null
+                ? audioExportGcsDestination_
+                : audioExportGcsDestinationBuilder_.build();
+      }
+      if (((from_bitField0_ & 0x00000002) != 0)) {
         result.loggingSettings_ =
             loggingSettingsBuilder_ == null ? loggingSettings_ : loggingSettingsBuilder_.build();
       }
@@ -1105,6 +1196,9 @@ public Builder mergeFrom(com.google.protobuf.Message other) {
     public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3.AdvancedSettings other) {
       if (other == com.google.cloud.dialogflow.cx.v3.AdvancedSettings.getDefaultInstance())
         return this;
+      if (other.hasAudioExportGcsDestination()) {
+        mergeAudioExportGcsDestination(other.getAudioExportGcsDestination());
+      }
       if (other.hasLoggingSettings()) {
         mergeLoggingSettings(other.getLoggingSettings());
       }
@@ -1134,10 +1228,17 @@ public Builder mergeFrom(
             case 0:
               done = true;
               break;
+            case 18:
+              {
+                input.readMessage(
+                    getAudioExportGcsDestinationFieldBuilder().getBuilder(), extensionRegistry);
+                bitField0_ |= 0x00000001;
+                break;
+              } // case 18
             case 50:
               {
                 input.readMessage(getLoggingSettingsFieldBuilder().getBuilder(), extensionRegistry);
-                bitField0_ |= 0x00000001;
+                bitField0_ |= 0x00000002;
                 break;
               } // case 50
             default:
@@ -1159,6 +1260,231 @@ public Builder mergeFrom(
 
     private int bitField0_;
 
+    private com.google.cloud.dialogflow.cx.v3.GcsDestination audioExportGcsDestination_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3.GcsDestination,
+            com.google.cloud.dialogflow.cx.v3.GcsDestination.Builder,
+            com.google.cloud.dialogflow.cx.v3.GcsDestinationOrBuilder>
+        audioExportGcsDestinationBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * If present, incoming audio is exported by Dialogflow to the configured
+     * Google Cloud Storage destination.
+     * Exposed at the following levels:
+     * - Agent level
+     * - Flow level
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3.GcsDestination audio_export_gcs_destination = 2;</code>
+     *
+     * @return Whether the audioExportGcsDestination field is set.
+     */
+    public boolean hasAudioExportGcsDestination() {
+      return ((bitField0_ & 0x00000001) != 0);
+    }
+    /**
+     *
+     *
+     * <pre>
+     * If present, incoming audio is exported by Dialogflow to the configured
+     * Google Cloud Storage destination.
+     * Exposed at the following levels:
+     * - Agent level
+     * - Flow level
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3.GcsDestination audio_export_gcs_destination = 2;</code>
+     *
+     * @return The audioExportGcsDestination.
+     */
+    public com.google.cloud.dialogflow.cx.v3.GcsDestination getAudioExportGcsDestination() {
+      if (audioExportGcsDestinationBuilder_ == null) {
+        return audioExportGcsDestination_ == null
+            ? com.google.cloud.dialogflow.cx.v3.GcsDestination.getDefaultInstance()
+            : audioExportGcsDestination_;
+      } else {
+        return audioExportGcsDestinationBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * If present, incoming audio is exported by Dialogflow to the configured
+     * Google Cloud Storage destination.
+     * Exposed at the following levels:
+     * - Agent level
+     * - Flow level
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3.GcsDestination audio_export_gcs_destination = 2;</code>
+     */
+    public Builder setAudioExportGcsDestination(
+        com.google.cloud.dialogflow.cx.v3.GcsDestination value) {
+      if (audioExportGcsDestinationBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        audioExportGcsDestination_ = value;
+      } else {
+        audioExportGcsDestinationBuilder_.setMessage(value);
+      }
+      bitField0_ |= 0x00000001;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * If present, incoming audio is exported by Dialogflow to the configured
+     * Google Cloud Storage destination.
+     * Exposed at the following levels:
+     * - Agent level
+     * - Flow level
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3.GcsDestination audio_export_gcs_destination = 2;</code>
+     */
+    public Builder setAudioExportGcsDestination(
+        com.google.cloud.dialogflow.cx.v3.GcsDestination.Builder builderForValue) {
+      if (audioExportGcsDestinationBuilder_ == null) {
+        audioExportGcsDestination_ = builderForValue.build();
+      } else {
+        audioExportGcsDestinationBuilder_.setMessage(builderForValue.build());
+      }
+      bitField0_ |= 0x00000001;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * If present, incoming audio is exported by Dialogflow to the configured
+     * Google Cloud Storage destination.
+     * Exposed at the following levels:
+     * - Agent level
+     * - Flow level
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3.GcsDestination audio_export_gcs_destination = 2;</code>
+     */
+    public Builder mergeAudioExportGcsDestination(
+        com.google.cloud.dialogflow.cx.v3.GcsDestination value) {
+      if (audioExportGcsDestinationBuilder_ == null) {
+        if (((bitField0_ & 0x00000001) != 0)
+            && audioExportGcsDestination_ != null
+            && audioExportGcsDestination_
+                != com.google.cloud.dialogflow.cx.v3.GcsDestination.getDefaultInstance()) {
+          getAudioExportGcsDestinationBuilder().mergeFrom(value);
+        } else {
+          audioExportGcsDestination_ = value;
+        }
+      } else {
+        audioExportGcsDestinationBuilder_.mergeFrom(value);
+      }
+      bitField0_ |= 0x00000001;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * If present, incoming audio is exported by Dialogflow to the configured
+     * Google Cloud Storage destination.
+     * Exposed at the following levels:
+     * - Agent level
+     * - Flow level
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3.GcsDestination audio_export_gcs_destination = 2;</code>
+     */
+    public Builder clearAudioExportGcsDestination() {
+      bitField0_ = (bitField0_ & ~0x00000001);
+      audioExportGcsDestination_ = null;
+      if (audioExportGcsDestinationBuilder_ != null) {
+        audioExportGcsDestinationBuilder_.dispose();
+        audioExportGcsDestinationBuilder_ = null;
+      }
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * If present, incoming audio is exported by Dialogflow to the configured
+     * Google Cloud Storage destination.
+     * Exposed at the following levels:
+     * - Agent level
+     * - Flow level
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3.GcsDestination audio_export_gcs_destination = 2;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3.GcsDestination.Builder
+        getAudioExportGcsDestinationBuilder() {
+      bitField0_ |= 0x00000001;
+      onChanged();
+      return getAudioExportGcsDestinationFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * If present, incoming audio is exported by Dialogflow to the configured
+     * Google Cloud Storage destination.
+     * Exposed at the following levels:
+     * - Agent level
+     * - Flow level
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3.GcsDestination audio_export_gcs_destination = 2;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3.GcsDestinationOrBuilder
+        getAudioExportGcsDestinationOrBuilder() {
+      if (audioExportGcsDestinationBuilder_ != null) {
+        return audioExportGcsDestinationBuilder_.getMessageOrBuilder();
+      } else {
+        return audioExportGcsDestination_ == null
+            ? com.google.cloud.dialogflow.cx.v3.GcsDestination.getDefaultInstance()
+            : audioExportGcsDestination_;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * If present, incoming audio is exported by Dialogflow to the configured
+     * Google Cloud Storage destination.
+     * Exposed at the following levels:
+     * - Agent level
+     * - Flow level
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3.GcsDestination audio_export_gcs_destination = 2;</code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3.GcsDestination,
+            com.google.cloud.dialogflow.cx.v3.GcsDestination.Builder,
+            com.google.cloud.dialogflow.cx.v3.GcsDestinationOrBuilder>
+        getAudioExportGcsDestinationFieldBuilder() {
+      if (audioExportGcsDestinationBuilder_ == null) {
+        audioExportGcsDestinationBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3.GcsDestination,
+                com.google.cloud.dialogflow.cx.v3.GcsDestination.Builder,
+                com.google.cloud.dialogflow.cx.v3.GcsDestinationOrBuilder>(
+                getAudioExportGcsDestination(), getParentForChildren(), isClean());
+        audioExportGcsDestination_ = null;
+      }
+      return audioExportGcsDestinationBuilder_;
+    }
+
     private com.google.cloud.dialogflow.cx.v3.AdvancedSettings.LoggingSettings loggingSettings_;
     private com.google.protobuf.SingleFieldBuilderV3<
             com.google.cloud.dialogflow.cx.v3.AdvancedSettings.LoggingSettings,
@@ -1182,7 +1508,7 @@ public Builder mergeFrom(
      * @return Whether the loggingSettings field is set.
      */
     public boolean hasLoggingSettings() {
-      return ((bitField0_ & 0x00000001) != 0);
+      return ((bitField0_ & 0x00000002) != 0);
     }
     /**
      *
@@ -1234,7 +1560,7 @@ public Builder setLoggingSettings(
       } else {
         loggingSettingsBuilder_.setMessage(value);
       }
-      bitField0_ |= 0x00000001;
+      bitField0_ |= 0x00000002;
       onChanged();
       return this;
     }
@@ -1260,7 +1586,7 @@ public Builder setLoggingSettings(
       } else {
         loggingSettingsBuilder_.setMessage(builderForValue.build());
       }
-      bitField0_ |= 0x00000001;
+      bitField0_ |= 0x00000002;
       onChanged();
       return this;
     }
@@ -1281,7 +1607,7 @@ public Builder setLoggingSettings(
     public Builder mergeLoggingSettings(
         com.google.cloud.dialogflow.cx.v3.AdvancedSettings.LoggingSettings value) {
       if (loggingSettingsBuilder_ == null) {
-        if (((bitField0_ & 0x00000001) != 0)
+        if (((bitField0_ & 0x00000002) != 0)
             && loggingSettings_ != null
             && loggingSettings_
                 != com.google.cloud.dialogflow.cx.v3.AdvancedSettings.LoggingSettings
@@ -1293,7 +1619,7 @@ public Builder mergeLoggingSettings(
       } else {
         loggingSettingsBuilder_.mergeFrom(value);
       }
-      bitField0_ |= 0x00000001;
+      bitField0_ |= 0x00000002;
       onChanged();
       return this;
     }
@@ -1312,7 +1638,7 @@ public Builder mergeLoggingSettings(
      * </code>
      */
     public Builder clearLoggingSettings() {
-      bitField0_ = (bitField0_ & ~0x00000001);
+      bitField0_ = (bitField0_ & ~0x00000002);
       loggingSettings_ = null;
       if (loggingSettingsBuilder_ != null) {
         loggingSettingsBuilder_.dispose();
@@ -1337,7 +1663,7 @@ public Builder clearLoggingSettings() {
      */
     public com.google.cloud.dialogflow.cx.v3.AdvancedSettings.LoggingSettings.Builder
         getLoggingSettingsBuilder() {
-      bitField0_ |= 0x00000001;
+      bitField0_ |= 0x00000002;
       onChanged();
       return getLoggingSettingsFieldBuilder().getBuilder();
     }
diff --git a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/AdvancedSettingsOrBuilder.java b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/AdvancedSettingsOrBuilder.java
index ca5352ba03cd..76da3d4ef15c 100644
--- a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/AdvancedSettingsOrBuilder.java
+++ b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/AdvancedSettingsOrBuilder.java
@@ -23,6 +23,53 @@ public interface AdvancedSettingsOrBuilder
     // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3.AdvancedSettings)
     com.google.protobuf.MessageOrBuilder {
 
+  /**
+   *
+   *
+   * <pre>
+   * If present, incoming audio is exported by Dialogflow to the configured
+   * Google Cloud Storage destination.
+   * Exposed at the following levels:
+   * - Agent level
+   * - Flow level
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3.GcsDestination audio_export_gcs_destination = 2;</code>
+   *
+   * @return Whether the audioExportGcsDestination field is set.
+   */
+  boolean hasAudioExportGcsDestination();
+  /**
+   *
+   *
+   * <pre>
+   * If present, incoming audio is exported by Dialogflow to the configured
+   * Google Cloud Storage destination.
+   * Exposed at the following levels:
+   * - Agent level
+   * - Flow level
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3.GcsDestination audio_export_gcs_destination = 2;</code>
+   *
+   * @return The audioExportGcsDestination.
+   */
+  com.google.cloud.dialogflow.cx.v3.GcsDestination getAudioExportGcsDestination();
+  /**
+   *
+   *
+   * <pre>
+   * If present, incoming audio is exported by Dialogflow to the configured
+   * Google Cloud Storage destination.
+   * Exposed at the following levels:
+   * - Agent level
+   * - Flow level
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3.GcsDestination audio_export_gcs_destination = 2;</code>
+   */
+  com.google.cloud.dialogflow.cx.v3.GcsDestinationOrBuilder getAudioExportGcsDestinationOrBuilder();
+
   /**
    *
    *
diff --git a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/AdvancedSettingsProto.java b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/AdvancedSettingsProto.java
index c566855b0f05..ffb50545b88e 100644
--- a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/AdvancedSettingsProto.java
+++ b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/AdvancedSettingsProto.java
@@ -46,23 +46,28 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
     java.lang.String[] descriptorData = {
       "\n5google/cloud/dialogflow/cx/v3/advanced"
           + "_settings.proto\022\035google.cloud.dialogflow"
-          + ".cx.v3\032\037google/api/field_behavior.proto\""
-          + "\310\001\n\020AdvancedSettings\022Y\n\020logging_settings"
-          + "\030\006 \001(\0132?.google.cloud.dialogflow.cx.v3.A"
-          + "dvancedSettings.LoggingSettings\032Y\n\017Loggi"
-          + "ngSettings\022\"\n\032enable_stackdriver_logging"
-          + "\030\002 \001(\010\022\"\n\032enable_interaction_logging\030\003 \001"
-          + "(\010B\273\001\n!com.google.cloud.dialogflow.cx.v3"
-          + "B\025AdvancedSettingsProtoP\001Z1cloud.google."
-          + "com/go/dialogflow/cx/apiv3/cxpb;cxpb\370\001\001\242"
-          + "\002\002DF\252\002\035Google.Cloud.Dialogflow.Cx.V3\352\002!G"
-          + "oogle::Cloud::Dialogflow::CX::V3b\006proto3"
+          + ".cx.v3\032\037google/api/field_behavior.proto\032"
+          + "\'google/cloud/dialogflow/cx/v3/gcs.proto"
+          + "\"\235\002\n\020AdvancedSettings\022S\n\034audio_export_gc"
+          + "s_destination\030\002 \001(\0132-.google.cloud.dialo"
+          + "gflow.cx.v3.GcsDestination\022Y\n\020logging_se"
+          + "ttings\030\006 \001(\0132?.google.cloud.dialogflow.c"
+          + "x.v3.AdvancedSettings.LoggingSettings\032Y\n"
+          + "\017LoggingSettings\022\"\n\032enable_stackdriver_l"
+          + "ogging\030\002 \001(\010\022\"\n\032enable_interaction_loggi"
+          + "ng\030\003 \001(\010B\273\001\n!com.google.cloud.dialogflow"
+          + ".cx.v3B\025AdvancedSettingsProtoP\001Z1cloud.g"
+          + "oogle.com/go/dialogflow/cx/apiv3/cxpb;cx"
+          + "pb\370\001\001\242\002\002DF\252\002\035Google.Cloud.Dialogflow.Cx."
+          + "V3\352\002!Google::Cloud::Dialogflow::CX::V3b\006"
+          + "proto3"
     };
     descriptor =
         com.google.protobuf.Descriptors.FileDescriptor.internalBuildGeneratedFileFrom(
             descriptorData,
             new com.google.protobuf.Descriptors.FileDescriptor[] {
               com.google.api.FieldBehaviorProto.getDescriptor(),
+              com.google.cloud.dialogflow.cx.v3.GcsProto.getDescriptor(),
             });
     internal_static_google_cloud_dialogflow_cx_v3_AdvancedSettings_descriptor =
         getDescriptor().getMessageTypes().get(0);
@@ -70,7 +75,7 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
         new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
             internal_static_google_cloud_dialogflow_cx_v3_AdvancedSettings_descriptor,
             new java.lang.String[] {
-              "LoggingSettings",
+              "AudioExportGcsDestination", "LoggingSettings",
             });
     internal_static_google_cloud_dialogflow_cx_v3_AdvancedSettings_LoggingSettings_descriptor =
         internal_static_google_cloud_dialogflow_cx_v3_AdvancedSettings_descriptor
@@ -83,6 +88,7 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
               "EnableStackdriverLogging", "EnableInteractionLogging",
             });
     com.google.api.FieldBehaviorProto.getDescriptor();
+    com.google.cloud.dialogflow.cx.v3.GcsProto.getDescriptor();
   }
 
   // @@protoc_insertion_point(outer_class_scope)
diff --git a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/Agent.java b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/Agent.java
index 6daf6fe443d8..1cebd540bb20 100644
--- a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/Agent.java
+++ b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/Agent.java
@@ -682,7 +682,7 @@ public com.google.protobuf.ByteString getSecuritySettingsBytes() {
    * <code>bool enable_stackdriver_logging = 18 [deprecated = true];</code>
    *
    * @deprecated google.cloud.dialogflow.cx.v3.Agent.enable_stackdriver_logging is deprecated. See
-   *     google/cloud/dialogflow/cx/v3/agent.proto;l=255
+   *     google/cloud/dialogflow/cx/v3/agent.proto;l=257
    * @return The enableStackdriverLogging.
    */
   @java.lang.Override
@@ -783,6 +783,60 @@ public com.google.cloud.dialogflow.cx.v3.AdvancedSettings getAdvancedSettings()
         : advancedSettings_;
   }
 
+  public static final int TEXT_TO_SPEECH_SETTINGS_FIELD_NUMBER = 31;
+  private com.google.cloud.dialogflow.cx.v3.TextToSpeechSettings textToSpeechSettings_;
+  /**
+   *
+   *
+   * <pre>
+   * Settings on instructing the speech synthesizer on how to generate the
+   * output audio content.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3.TextToSpeechSettings text_to_speech_settings = 31;</code>
+   *
+   * @return Whether the textToSpeechSettings field is set.
+   */
+  @java.lang.Override
+  public boolean hasTextToSpeechSettings() {
+    return textToSpeechSettings_ != null;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Settings on instructing the speech synthesizer on how to generate the
+   * output audio content.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3.TextToSpeechSettings text_to_speech_settings = 31;</code>
+   *
+   * @return The textToSpeechSettings.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3.TextToSpeechSettings getTextToSpeechSettings() {
+    return textToSpeechSettings_ == null
+        ? com.google.cloud.dialogflow.cx.v3.TextToSpeechSettings.getDefaultInstance()
+        : textToSpeechSettings_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Settings on instructing the speech synthesizer on how to generate the
+   * output audio content.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3.TextToSpeechSettings text_to_speech_settings = 31;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3.TextToSpeechSettingsOrBuilder
+      getTextToSpeechSettingsOrBuilder() {
+    return textToSpeechSettings_ == null
+        ? com.google.cloud.dialogflow.cx.v3.TextToSpeechSettings.getDefaultInstance()
+        : textToSpeechSettings_;
+  }
+
   private byte memoizedIsInitialized = -1;
 
   @java.lang.Override
@@ -840,6 +894,9 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (locked_ != false) {
       output.writeBool(27, locked_);
     }
+    if (textToSpeechSettings_ != null) {
+      output.writeMessage(31, getTextToSpeechSettings());
+    }
     getUnknownFields().writeTo(output);
   }
 
@@ -897,6 +954,10 @@ public int getSerializedSize() {
     if (locked_ != false) {
       size += com.google.protobuf.CodedOutputStream.computeBoolSize(27, locked_);
     }
+    if (textToSpeechSettings_ != null) {
+      size +=
+          com.google.protobuf.CodedOutputStream.computeMessageSize(31, getTextToSpeechSettings());
+    }
     size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
@@ -933,6 +994,10 @@ public boolean equals(final java.lang.Object obj) {
     if (hasAdvancedSettings()) {
       if (!getAdvancedSettings().equals(other.getAdvancedSettings())) return false;
     }
+    if (hasTextToSpeechSettings() != other.hasTextToSpeechSettings()) return false;
+    if (hasTextToSpeechSettings()) {
+      if (!getTextToSpeechSettings().equals(other.getTextToSpeechSettings())) return false;
+    }
     if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
@@ -978,6 +1043,10 @@ public int hashCode() {
       hash = (37 * hash) + ADVANCED_SETTINGS_FIELD_NUMBER;
       hash = (53 * hash) + getAdvancedSettings().hashCode();
     }
+    if (hasTextToSpeechSettings()) {
+      hash = (37 * hash) + TEXT_TO_SPEECH_SETTINGS_FIELD_NUMBER;
+      hash = (53 * hash) + getTextToSpeechSettings().hashCode();
+    }
     hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
@@ -1150,6 +1219,11 @@ public Builder clear() {
         advancedSettingsBuilder_.dispose();
         advancedSettingsBuilder_ = null;
       }
+      textToSpeechSettings_ = null;
+      if (textToSpeechSettingsBuilder_ != null) {
+        textToSpeechSettingsBuilder_.dispose();
+        textToSpeechSettingsBuilder_ = null;
+      }
       return this;
     }
 
@@ -1238,6 +1312,12 @@ private void buildPartial0(com.google.cloud.dialogflow.cx.v3.Agent result) {
         result.advancedSettings_ =
             advancedSettingsBuilder_ == null ? advancedSettings_ : advancedSettingsBuilder_.build();
       }
+      if (((from_bitField0_ & 0x00004000) != 0)) {
+        result.textToSpeechSettings_ =
+            textToSpeechSettingsBuilder_ == null
+                ? textToSpeechSettings_
+                : textToSpeechSettingsBuilder_.build();
+      }
     }
 
     @java.lang.Override
@@ -1350,6 +1430,9 @@ public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3.Agent other) {
       if (other.hasAdvancedSettings()) {
         mergeAdvancedSettings(other.getAdvancedSettings());
       }
+      if (other.hasTextToSpeechSettings()) {
+        mergeTextToSpeechSettings(other.getTextToSpeechSettings());
+      }
       this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
@@ -1463,6 +1546,13 @@ public Builder mergeFrom(
                 bitField0_ |= 0x00001000;
                 break;
               } // case 216
+            case 250:
+              {
+                input.readMessage(
+                    getTextToSpeechSettingsFieldBuilder().getBuilder(), extensionRegistry);
+                bitField0_ |= 0x00004000;
+                break;
+              } // case 250
             default:
               {
                 if (!super.parseUnknownField(input, extensionRegistry, tag)) {
@@ -2860,7 +2950,7 @@ public Builder setSecuritySettingsBytes(com.google.protobuf.ByteString value) {
      * <code>bool enable_stackdriver_logging = 18 [deprecated = true];</code>
      *
      * @deprecated google.cloud.dialogflow.cx.v3.Agent.enable_stackdriver_logging is deprecated. See
-     *     google/cloud/dialogflow/cx/v3/agent.proto;l=255
+     *     google/cloud/dialogflow/cx/v3/agent.proto;l=257
      * @return The enableStackdriverLogging.
      */
     @java.lang.Override
@@ -2881,7 +2971,7 @@ public boolean getEnableStackdriverLogging() {
      * <code>bool enable_stackdriver_logging = 18 [deprecated = true];</code>
      *
      * @deprecated google.cloud.dialogflow.cx.v3.Agent.enable_stackdriver_logging is deprecated. See
-     *     google/cloud/dialogflow/cx/v3/agent.proto;l=255
+     *     google/cloud/dialogflow/cx/v3/agent.proto;l=257
      * @param value The enableStackdriverLogging to set.
      * @return This builder for chaining.
      */
@@ -2906,7 +2996,7 @@ public Builder setEnableStackdriverLogging(boolean value) {
      * <code>bool enable_stackdriver_logging = 18 [deprecated = true];</code>
      *
      * @deprecated google.cloud.dialogflow.cx.v3.Agent.enable_stackdriver_logging is deprecated. See
-     *     google/cloud/dialogflow/cx/v3/agent.proto;l=255
+     *     google/cloud/dialogflow/cx/v3/agent.proto;l=257
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -3224,6 +3314,213 @@ public com.google.cloud.dialogflow.cx.v3.AdvancedSettings.Builder getAdvancedSet
       return advancedSettingsBuilder_;
     }
 
+    private com.google.cloud.dialogflow.cx.v3.TextToSpeechSettings textToSpeechSettings_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3.TextToSpeechSettings,
+            com.google.cloud.dialogflow.cx.v3.TextToSpeechSettings.Builder,
+            com.google.cloud.dialogflow.cx.v3.TextToSpeechSettingsOrBuilder>
+        textToSpeechSettingsBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * Settings on instructing the speech synthesizer on how to generate the
+     * output audio content.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3.TextToSpeechSettings text_to_speech_settings = 31;
+     * </code>
+     *
+     * @return Whether the textToSpeechSettings field is set.
+     */
+    public boolean hasTextToSpeechSettings() {
+      return ((bitField0_ & 0x00004000) != 0);
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Settings on instructing the speech synthesizer on how to generate the
+     * output audio content.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3.TextToSpeechSettings text_to_speech_settings = 31;
+     * </code>
+     *
+     * @return The textToSpeechSettings.
+     */
+    public com.google.cloud.dialogflow.cx.v3.TextToSpeechSettings getTextToSpeechSettings() {
+      if (textToSpeechSettingsBuilder_ == null) {
+        return textToSpeechSettings_ == null
+            ? com.google.cloud.dialogflow.cx.v3.TextToSpeechSettings.getDefaultInstance()
+            : textToSpeechSettings_;
+      } else {
+        return textToSpeechSettingsBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Settings on instructing the speech synthesizer on how to generate the
+     * output audio content.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3.TextToSpeechSettings text_to_speech_settings = 31;
+     * </code>
+     */
+    public Builder setTextToSpeechSettings(
+        com.google.cloud.dialogflow.cx.v3.TextToSpeechSettings value) {
+      if (textToSpeechSettingsBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        textToSpeechSettings_ = value;
+      } else {
+        textToSpeechSettingsBuilder_.setMessage(value);
+      }
+      bitField0_ |= 0x00004000;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Settings on instructing the speech synthesizer on how to generate the
+     * output audio content.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3.TextToSpeechSettings text_to_speech_settings = 31;
+     * </code>
+     */
+    public Builder setTextToSpeechSettings(
+        com.google.cloud.dialogflow.cx.v3.TextToSpeechSettings.Builder builderForValue) {
+      if (textToSpeechSettingsBuilder_ == null) {
+        textToSpeechSettings_ = builderForValue.build();
+      } else {
+        textToSpeechSettingsBuilder_.setMessage(builderForValue.build());
+      }
+      bitField0_ |= 0x00004000;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Settings on instructing the speech synthesizer on how to generate the
+     * output audio content.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3.TextToSpeechSettings text_to_speech_settings = 31;
+     * </code>
+     */
+    public Builder mergeTextToSpeechSettings(
+        com.google.cloud.dialogflow.cx.v3.TextToSpeechSettings value) {
+      if (textToSpeechSettingsBuilder_ == null) {
+        if (((bitField0_ & 0x00004000) != 0)
+            && textToSpeechSettings_ != null
+            && textToSpeechSettings_
+                != com.google.cloud.dialogflow.cx.v3.TextToSpeechSettings.getDefaultInstance()) {
+          getTextToSpeechSettingsBuilder().mergeFrom(value);
+        } else {
+          textToSpeechSettings_ = value;
+        }
+      } else {
+        textToSpeechSettingsBuilder_.mergeFrom(value);
+      }
+      bitField0_ |= 0x00004000;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Settings on instructing the speech synthesizer on how to generate the
+     * output audio content.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3.TextToSpeechSettings text_to_speech_settings = 31;
+     * </code>
+     */
+    public Builder clearTextToSpeechSettings() {
+      bitField0_ = (bitField0_ & ~0x00004000);
+      textToSpeechSettings_ = null;
+      if (textToSpeechSettingsBuilder_ != null) {
+        textToSpeechSettingsBuilder_.dispose();
+        textToSpeechSettingsBuilder_ = null;
+      }
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Settings on instructing the speech synthesizer on how to generate the
+     * output audio content.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3.TextToSpeechSettings text_to_speech_settings = 31;
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3.TextToSpeechSettings.Builder
+        getTextToSpeechSettingsBuilder() {
+      bitField0_ |= 0x00004000;
+      onChanged();
+      return getTextToSpeechSettingsFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Settings on instructing the speech synthesizer on how to generate the
+     * output audio content.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3.TextToSpeechSettings text_to_speech_settings = 31;
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3.TextToSpeechSettingsOrBuilder
+        getTextToSpeechSettingsOrBuilder() {
+      if (textToSpeechSettingsBuilder_ != null) {
+        return textToSpeechSettingsBuilder_.getMessageOrBuilder();
+      } else {
+        return textToSpeechSettings_ == null
+            ? com.google.cloud.dialogflow.cx.v3.TextToSpeechSettings.getDefaultInstance()
+            : textToSpeechSettings_;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Settings on instructing the speech synthesizer on how to generate the
+     * output audio content.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3.TextToSpeechSettings text_to_speech_settings = 31;
+     * </code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3.TextToSpeechSettings,
+            com.google.cloud.dialogflow.cx.v3.TextToSpeechSettings.Builder,
+            com.google.cloud.dialogflow.cx.v3.TextToSpeechSettingsOrBuilder>
+        getTextToSpeechSettingsFieldBuilder() {
+      if (textToSpeechSettingsBuilder_ == null) {
+        textToSpeechSettingsBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3.TextToSpeechSettings,
+                com.google.cloud.dialogflow.cx.v3.TextToSpeechSettings.Builder,
+                com.google.cloud.dialogflow.cx.v3.TextToSpeechSettingsOrBuilder>(
+                getTextToSpeechSettings(), getParentForChildren(), isClean());
+        textToSpeechSettings_ = null;
+      }
+      return textToSpeechSettingsBuilder_;
+    }
+
     @java.lang.Override
     public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
       return super.setUnknownFields(unknownFields);
diff --git a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/AgentOrBuilder.java b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/AgentOrBuilder.java
index 2fc1c56eae90..39bd0d924525 100644
--- a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/AgentOrBuilder.java
+++ b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/AgentOrBuilder.java
@@ -383,7 +383,7 @@ public interface AgentOrBuilder
    * <code>bool enable_stackdriver_logging = 18 [deprecated = true];</code>
    *
    * @deprecated google.cloud.dialogflow.cx.v3.Agent.enable_stackdriver_logging is deprecated. See
-   *     google/cloud/dialogflow/cx/v3/agent.proto;l=255
+   *     google/cloud/dialogflow/cx/v3/agent.proto;l=257
    * @return The enableStackdriverLogging.
    */
   @java.lang.Deprecated
@@ -454,4 +454,43 @@ public interface AgentOrBuilder
    * <code>.google.cloud.dialogflow.cx.v3.AdvancedSettings advanced_settings = 22;</code>
    */
   com.google.cloud.dialogflow.cx.v3.AdvancedSettingsOrBuilder getAdvancedSettingsOrBuilder();
+
+  /**
+   *
+   *
+   * <pre>
+   * Settings on instructing the speech synthesizer on how to generate the
+   * output audio content.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3.TextToSpeechSettings text_to_speech_settings = 31;</code>
+   *
+   * @return Whether the textToSpeechSettings field is set.
+   */
+  boolean hasTextToSpeechSettings();
+  /**
+   *
+   *
+   * <pre>
+   * Settings on instructing the speech synthesizer on how to generate the
+   * output audio content.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3.TextToSpeechSettings text_to_speech_settings = 31;</code>
+   *
+   * @return The textToSpeechSettings.
+   */
+  com.google.cloud.dialogflow.cx.v3.TextToSpeechSettings getTextToSpeechSettings();
+  /**
+   *
+   *
+   * <pre>
+   * Settings on instructing the speech synthesizer on how to generate the
+   * output audio content.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3.TextToSpeechSettings text_to_speech_settings = 31;</code>
+   */
+  com.google.cloud.dialogflow.cx.v3.TextToSpeechSettingsOrBuilder
+      getTextToSpeechSettingsOrBuilder();
 }
diff --git a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/AgentProto.java b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/AgentProto.java
index bcaf8a9eb23b..12708d10b169 100644
--- a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/AgentProto.java
+++ b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/AgentProto.java
@@ -98,12 +98,14 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
           + "ent.proto\032\037google/api/field_behavior.pro"
           + "to\032\031google/api/resource.proto\0325google/cl"
           + "oud/dialogflow/cx/v3/advanced_settings.p"
-          + "roto\032(google/cloud/dialogflow/cx/v3/flow"
-          + ".proto\032#google/longrunning/operations.pr"
-          + "oto\032\033google/protobuf/empty.proto\032 google"
-          + "/protobuf/field_mask.proto\"8\n\024SpeechToTe"
+          + "roto\0320google/cloud/dialogflow/cx/v3/audi"
+          + "o_config.proto\032(google/cloud/dialogflow/"
+          + "cx/v3/flow.proto\032#google/longrunning/ope"
+          + "rations.proto\032\033google/protobuf/empty.pro"
+          + "to\032 google/protobuf/field_mask.proto\032\034go"
+          + "ogle/protobuf/struct.proto\"8\n\024SpeechToTe"
           + "xtSettings\022 \n\030enable_speech_adaptation\030\001"
-          + " \001(\010\"\233\005\n\005Agent\022\014\n\004name\030\001 \001(\t\022\031\n\014display_"
+          + " \001(\010\"\361\005\n\005Agent\022\014\n\004name\030\001 \001(\t\022\031\n\014display_"
           + "name\030\002 \001(\tB\003\340A\002\022%\n\025default_language_code"
           + "\030\003 \001(\tB\006\340A\002\340A\005\022 \n\030supported_language_cod"
           + "es\030\004 \003(\t\022\026\n\ttime_zone\030\005 \001(\tB\003\340A\002\022\023\n\013desc"
@@ -117,105 +119,107 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
           + "gging\030\022 \001(\010B\002\030\001\022\037\n\027enable_spell_correcti"
           + "on\030\024 \001(\010\022\016\n\006locked\030\033 \001(\010\022J\n\021advanced_set"
           + "tings\030\026 \001(\0132/.google.cloud.dialogflow.cx"
-          + ".v3.AdvancedSettings:\\\352AY\n\037dialogflow.go"
-          + "ogleapis.com/Agent\0226projects/{project}/l"
-          + "ocations/{location}/agents/{agent}\"s\n\021Li"
-          + "stAgentsRequest\0227\n\006parent\030\001 \001(\tB\'\340A\002\372A!\022"
-          + "\037dialogflow.googleapis.com/Agent\022\021\n\tpage"
-          + "_size\030\002 \001(\005\022\022\n\npage_token\030\003 \001(\t\"c\n\022ListA"
-          + "gentsResponse\0224\n\006agents\030\001 \003(\0132$.google.c"
-          + "loud.dialogflow.cx.v3.Agent\022\027\n\017next_page"
-          + "_token\030\002 \001(\t\"H\n\017GetAgentRequest\0225\n\004name\030"
-          + "\001 \001(\tB\'\340A\002\372A!\n\037dialogflow.googleapis.com"
-          + "/Agent\"\207\001\n\022CreateAgentRequest\0227\n\006parent\030"
-          + "\001 \001(\tB\'\340A\002\372A!\022\037dialogflow.googleapis.com"
-          + "/Agent\0228\n\005agent\030\002 \001(\0132$.google.cloud.dia"
-          + "logflow.cx.v3.AgentB\003\340A\002\"\177\n\022UpdateAgentR"
-          + "equest\0228\n\005agent\030\001 \001(\0132$.google.cloud.dia"
-          + "logflow.cx.v3.AgentB\003\340A\002\022/\n\013update_mask\030"
-          + "\002 \001(\0132\032.google.protobuf.FieldMask\"K\n\022Del"
-          + "eteAgentRequest\0225\n\004name\030\001 \001(\tB\'\340A\002\372A!\n\037d"
-          + "ialogflow.googleapis.com/Agent\"\306\002\n\022Expor"
-          + "tAgentRequest\0225\n\004name\030\001 \001(\tB\'\340A\002\372A!\n\037dia"
-          + "logflow.googleapis.com/Agent\022\026\n\tagent_ur"
-          + "i\030\002 \001(\tB\003\340A\001\022V\n\013data_format\030\003 \001(\0162<.goog"
-          + "le.cloud.dialogflow.cx.v3.ExportAgentReq"
-          + "uest.DataFormatB\003\340A\001\022B\n\013environment\030\005 \001("
-          + "\tB-\340A\001\372A\'\n%dialogflow.googleapis.com/Env"
-          + "ironment\"E\n\nDataFormat\022\033\n\027DATA_FORMAT_UN"
-          + "SPECIFIED\020\000\022\010\n\004BLOB\020\001\022\020\n\014JSON_PACKAGE\020\004\""
-          + "L\n\023ExportAgentResponse\022\023\n\tagent_uri\030\001 \001("
-          + "\tH\000\022\027\n\ragent_content\030\002 \001(\014H\000B\007\n\005agent\"\246\002"
-          + "\n\023RestoreAgentRequest\0225\n\004name\030\001 \001(\tB\'\340A\002"
-          + "\372A!\n\037dialogflow.googleapis.com/Agent\022\023\n\t"
-          + "agent_uri\030\002 \001(\tH\000\022\027\n\ragent_content\030\003 \001(\014"
-          + "H\000\022X\n\016restore_option\030\005 \001(\0162@.google.clou"
-          + "d.dialogflow.cx.v3.RestoreAgentRequest.R"
-          + "estoreOption\"G\n\rRestoreOption\022\036\n\032RESTORE"
-          + "_OPTION_UNSPECIFIED\020\000\022\010\n\004KEEP\020\001\022\014\n\010FALLB"
-          + "ACK\020\002B\007\n\005agent\"d\n\024ValidateAgentRequest\0225"
-          + "\n\004name\030\001 \001(\tB\'\340A\002\372A!\n\037dialogflow.googlea"
-          + "pis.com/Agent\022\025\n\rlanguage_code\030\002 \001(\t\"\177\n\037"
-          + "GetAgentValidationResultRequest\022E\n\004name\030"
-          + "\001 \001(\tB7\340A\002\372A1\n/dialogflow.googleapis.com"
-          + "/AgentValidationResult\022\025\n\rlanguage_code\030"
-          + "\002 \001(\t\"\372\001\n\025AgentValidationResult\022\014\n\004name\030"
-          + "\001 \001(\t\022T\n\027flow_validation_results\030\002 \003(\01323"
-          + ".google.cloud.dialogflow.cx.v3.FlowValid"
-          + "ationResult:}\352Az\n/dialogflow.googleapis."
-          + "com/AgentValidationResult\022Gprojects/{pro"
-          + "ject}/locations/{location}/agents/{agent"
-          + "}/validationResult2\231\016\n\006Agents\022\256\001\n\nListAg"
-          + "ents\0220.google.cloud.dialogflow.cx.v3.Lis"
-          + "tAgentsRequest\0321.google.cloud.dialogflow"
-          + ".cx.v3.ListAgentsResponse\";\202\323\344\223\002,\022*/v3/{"
-          + "parent=projects/*/locations/*}/agents\332A\006"
-          + "parent\022\233\001\n\010GetAgent\022..google.cloud.dialo"
-          + "gflow.cx.v3.GetAgentRequest\032$.google.clo"
-          + "ud.dialogflow.cx.v3.Agent\"9\202\323\344\223\002,\022*/v3/{"
-          + "name=projects/*/locations/*/agents/*}\332A\004"
-          + "name\022\260\001\n\013CreateAgent\0221.google.cloud.dial"
-          + "ogflow.cx.v3.CreateAgentRequest\032$.google"
-          + ".cloud.dialogflow.cx.v3.Agent\"H\202\323\344\223\0023\"*/"
-          + "v3/{parent=projects/*/locations/*}/agent"
-          + "s:\005agent\332A\014parent,agent\022\273\001\n\013UpdateAgent\022"
-          + "1.google.cloud.dialogflow.cx.v3.UpdateAg"
-          + "entRequest\032$.google.cloud.dialogflow.cx."
-          + "v3.Agent\"S\202\323\344\223\002920/v3/{agent.name=projec"
-          + "ts/*/locations/*/agents/*}:\005agent\332A\021agen"
-          + "t,update_mask\022\223\001\n\013DeleteAgent\0221.google.c"
-          + "loud.dialogflow.cx.v3.DeleteAgentRequest"
-          + "\032\026.google.protobuf.Empty\"9\202\323\344\223\002,**/v3/{n"
-          + "ame=projects/*/locations/*/agents/*}\332A\004n"
-          + "ame\022\315\001\n\013ExportAgent\0221.google.cloud.dialo"
-          + "gflow.cx.v3.ExportAgentRequest\032\035.google."
-          + "longrunning.Operation\"l\202\323\344\223\0026\"1/v3/{name"
-          + "=projects/*/locations/*/agents/*}:export"
-          + ":\001*\312A-\n\023ExportAgentResponse\022\026google.prot"
-          + "obuf.Struct\022\322\001\n\014RestoreAgent\0222.google.cl"
-          + "oud.dialogflow.cx.v3.RestoreAgentRequest"
-          + "\032\035.google.longrunning.Operation\"o\202\323\344\223\0027\""
-          + "2/v3/{name=projects/*/locations/*/agents"
-          + "/*}:restore:\001*\312A/\n\025google.protobuf.Empty"
-          + "\022\026google.protobuf.Struct\022\272\001\n\rValidateAge"
-          + "nt\0223.google.cloud.dialogflow.cx.v3.Valid"
-          + "ateAgentRequest\0324.google.cloud.dialogflo"
-          + "w.cx.v3.AgentValidationResult\">\202\323\344\223\0028\"3/"
-          + "v3/{name=projects/*/locations/*/agents/*"
-          + "}:validate:\001*\022\334\001\n\030GetAgentValidationResu"
-          + "lt\022>.google.cloud.dialogflow.cx.v3.GetAg"
-          + "entValidationResultRequest\0324.google.clou"
-          + "d.dialogflow.cx.v3.AgentValidationResult"
-          + "\"J\202\323\344\223\002=\022;/v3/{name=projects/*/locations"
-          + "/*/agents/*/validationResult}\332A\004name\032x\312A"
-          + "\031dialogflow.googleapis.com\322AYhttps://www"
-          + ".googleapis.com/auth/cloud-platform,http"
-          + "s://www.googleapis.com/auth/dialogflowB\260"
-          + "\001\n!com.google.cloud.dialogflow.cx.v3B\nAg"
-          + "entProtoP\001Z1cloud.google.com/go/dialogfl"
-          + "ow/cx/apiv3/cxpb;cxpb\370\001\001\242\002\002DF\252\002\035Google.C"
-          + "loud.Dialogflow.Cx.V3\352\002!Google::Cloud::D"
-          + "ialogflow::CX::V3b\006proto3"
+          + ".v3.AdvancedSettings\022T\n\027text_to_speech_s"
+          + "ettings\030\037 \001(\01323.google.cloud.dialogflow."
+          + "cx.v3.TextToSpeechSettings:\\\352AY\n\037dialogf"
+          + "low.googleapis.com/Agent\0226projects/{proj"
+          + "ect}/locations/{location}/agents/{agent}"
+          + "\"s\n\021ListAgentsRequest\0227\n\006parent\030\001 \001(\tB\'\340"
+          + "A\002\372A!\022\037dialogflow.googleapis.com/Agent\022\021"
+          + "\n\tpage_size\030\002 \001(\005\022\022\n\npage_token\030\003 \001(\t\"c\n"
+          + "\022ListAgentsResponse\0224\n\006agents\030\001 \003(\0132$.go"
+          + "ogle.cloud.dialogflow.cx.v3.Agent\022\027\n\017nex"
+          + "t_page_token\030\002 \001(\t\"H\n\017GetAgentRequest\0225\n"
+          + "\004name\030\001 \001(\tB\'\340A\002\372A!\n\037dialogflow.googleap"
+          + "is.com/Agent\"\207\001\n\022CreateAgentRequest\0227\n\006p"
+          + "arent\030\001 \001(\tB\'\340A\002\372A!\022\037dialogflow.googleap"
+          + "is.com/Agent\0228\n\005agent\030\002 \001(\0132$.google.clo"
+          + "ud.dialogflow.cx.v3.AgentB\003\340A\002\"\177\n\022Update"
+          + "AgentRequest\0228\n\005agent\030\001 \001(\0132$.google.clo"
+          + "ud.dialogflow.cx.v3.AgentB\003\340A\002\022/\n\013update"
+          + "_mask\030\002 \001(\0132\032.google.protobuf.FieldMask\""
+          + "K\n\022DeleteAgentRequest\0225\n\004name\030\001 \001(\tB\'\340A\002"
+          + "\372A!\n\037dialogflow.googleapis.com/Agent\"\306\002\n"
+          + "\022ExportAgentRequest\0225\n\004name\030\001 \001(\tB\'\340A\002\372A"
+          + "!\n\037dialogflow.googleapis.com/Agent\022\026\n\tag"
+          + "ent_uri\030\002 \001(\tB\003\340A\001\022V\n\013data_format\030\003 \001(\0162"
+          + "<.google.cloud.dialogflow.cx.v3.ExportAg"
+          + "entRequest.DataFormatB\003\340A\001\022B\n\013environmen"
+          + "t\030\005 \001(\tB-\340A\001\372A\'\n%dialogflow.googleapis.c"
+          + "om/Environment\"E\n\nDataFormat\022\033\n\027DATA_FOR"
+          + "MAT_UNSPECIFIED\020\000\022\010\n\004BLOB\020\001\022\020\n\014JSON_PACK"
+          + "AGE\020\004\"L\n\023ExportAgentResponse\022\023\n\tagent_ur"
+          + "i\030\001 \001(\tH\000\022\027\n\ragent_content\030\002 \001(\014H\000B\007\n\005ag"
+          + "ent\"\246\002\n\023RestoreAgentRequest\0225\n\004name\030\001 \001("
+          + "\tB\'\340A\002\372A!\n\037dialogflow.googleapis.com/Age"
+          + "nt\022\023\n\tagent_uri\030\002 \001(\tH\000\022\027\n\ragent_content"
+          + "\030\003 \001(\014H\000\022X\n\016restore_option\030\005 \001(\0162@.googl"
+          + "e.cloud.dialogflow.cx.v3.RestoreAgentReq"
+          + "uest.RestoreOption\"G\n\rRestoreOption\022\036\n\032R"
+          + "ESTORE_OPTION_UNSPECIFIED\020\000\022\010\n\004KEEP\020\001\022\014\n"
+          + "\010FALLBACK\020\002B\007\n\005agent\"d\n\024ValidateAgentReq"
+          + "uest\0225\n\004name\030\001 \001(\tB\'\340A\002\372A!\n\037dialogflow.g"
+          + "oogleapis.com/Agent\022\025\n\rlanguage_code\030\002 \001"
+          + "(\t\"\177\n\037GetAgentValidationResultRequest\022E\n"
+          + "\004name\030\001 \001(\tB7\340A\002\372A1\n/dialogflow.googleap"
+          + "is.com/AgentValidationResult\022\025\n\rlanguage"
+          + "_code\030\002 \001(\t\"\372\001\n\025AgentValidationResult\022\014\n"
+          + "\004name\030\001 \001(\t\022T\n\027flow_validation_results\030\002"
+          + " \003(\01323.google.cloud.dialogflow.cx.v3.Flo"
+          + "wValidationResult:}\352Az\n/dialogflow.googl"
+          + "eapis.com/AgentValidationResult\022Gproject"
+          + "s/{project}/locations/{location}/agents/"
+          + "{agent}/validationResult2\231\016\n\006Agents\022\256\001\n\n"
+          + "ListAgents\0220.google.cloud.dialogflow.cx."
+          + "v3.ListAgentsRequest\0321.google.cloud.dial"
+          + "ogflow.cx.v3.ListAgentsResponse\";\202\323\344\223\002,\022"
+          + "*/v3/{parent=projects/*/locations/*}/age"
+          + "nts\332A\006parent\022\233\001\n\010GetAgent\022..google.cloud"
+          + ".dialogflow.cx.v3.GetAgentRequest\032$.goog"
+          + "le.cloud.dialogflow.cx.v3.Agent\"9\202\323\344\223\002,\022"
+          + "*/v3/{name=projects/*/locations/*/agents"
+          + "/*}\332A\004name\022\260\001\n\013CreateAgent\0221.google.clou"
+          + "d.dialogflow.cx.v3.CreateAgentRequest\032$."
+          + "google.cloud.dialogflow.cx.v3.Agent\"H\202\323\344"
+          + "\223\0023\"*/v3/{parent=projects/*/locations/*}"
+          + "/agents:\005agent\332A\014parent,agent\022\273\001\n\013Update"
+          + "Agent\0221.google.cloud.dialogflow.cx.v3.Up"
+          + "dateAgentRequest\032$.google.cloud.dialogfl"
+          + "ow.cx.v3.Agent\"S\202\323\344\223\002920/v3/{agent.name="
+          + "projects/*/locations/*/agents/*}:\005agent\332"
+          + "A\021agent,update_mask\022\223\001\n\013DeleteAgent\0221.go"
+          + "ogle.cloud.dialogflow.cx.v3.DeleteAgentR"
+          + "equest\032\026.google.protobuf.Empty\"9\202\323\344\223\002,**"
+          + "/v3/{name=projects/*/locations/*/agents/"
+          + "*}\332A\004name\022\315\001\n\013ExportAgent\0221.google.cloud"
+          + ".dialogflow.cx.v3.ExportAgentRequest\032\035.g"
+          + "oogle.longrunning.Operation\"l\202\323\344\223\0026\"1/v3"
+          + "/{name=projects/*/locations/*/agents/*}:"
+          + "export:\001*\312A-\n\023ExportAgentResponse\022\026googl"
+          + "e.protobuf.Struct\022\322\001\n\014RestoreAgent\0222.goo"
+          + "gle.cloud.dialogflow.cx.v3.RestoreAgentR"
+          + "equest\032\035.google.longrunning.Operation\"o\202"
+          + "\323\344\223\0027\"2/v3/{name=projects/*/locations/*/"
+          + "agents/*}:restore:\001*\312A/\n\025google.protobuf"
+          + ".Empty\022\026google.protobuf.Struct\022\272\001\n\rValid"
+          + "ateAgent\0223.google.cloud.dialogflow.cx.v3"
+          + ".ValidateAgentRequest\0324.google.cloud.dia"
+          + "logflow.cx.v3.AgentValidationResult\">\202\323\344"
+          + "\223\0028\"3/v3/{name=projects/*/locations/*/ag"
+          + "ents/*}:validate:\001*\022\334\001\n\030GetAgentValidati"
+          + "onResult\022>.google.cloud.dialogflow.cx.v3"
+          + ".GetAgentValidationResultRequest\0324.googl"
+          + "e.cloud.dialogflow.cx.v3.AgentValidation"
+          + "Result\"J\202\323\344\223\002=\022;/v3/{name=projects/*/loc"
+          + "ations/*/agents/*/validationResult}\332A\004na"
+          + "me\032x\312A\031dialogflow.googleapis.com\322AYhttps"
+          + "://www.googleapis.com/auth/cloud-platfor"
+          + "m,https://www.googleapis.com/auth/dialog"
+          + "flowB\260\001\n!com.google.cloud.dialogflow.cx."
+          + "v3B\nAgentProtoP\001Z1cloud.google.com/go/di"
+          + "alogflow/cx/apiv3/cxpb;cxpb\370\001\001\242\002\002DF\252\002\035Go"
+          + "ogle.Cloud.Dialogflow.Cx.V3\352\002!Google::Cl"
+          + "oud::Dialogflow::CX::V3b\006proto3"
     };
     descriptor =
         com.google.protobuf.Descriptors.FileDescriptor.internalBuildGeneratedFileFrom(
@@ -226,10 +230,12 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
               com.google.api.FieldBehaviorProto.getDescriptor(),
               com.google.api.ResourceProto.getDescriptor(),
               com.google.cloud.dialogflow.cx.v3.AdvancedSettingsProto.getDescriptor(),
+              com.google.cloud.dialogflow.cx.v3.AudioConfigProto.getDescriptor(),
               com.google.cloud.dialogflow.cx.v3.FlowProto.getDescriptor(),
               com.google.longrunning.OperationsProto.getDescriptor(),
               com.google.protobuf.EmptyProto.getDescriptor(),
               com.google.protobuf.FieldMaskProto.getDescriptor(),
+              com.google.protobuf.StructProto.getDescriptor(),
             });
     internal_static_google_cloud_dialogflow_cx_v3_SpeechToTextSettings_descriptor =
         getDescriptor().getMessageTypes().get(0);
@@ -259,6 +265,7 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
               "EnableSpellCorrection",
               "Locked",
               "AdvancedSettings",
+              "TextToSpeechSettings",
             });
     internal_static_google_cloud_dialogflow_cx_v3_ListAgentsRequest_descriptor =
         getDescriptor().getMessageTypes().get(2);
@@ -373,10 +380,12 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
     com.google.api.FieldBehaviorProto.getDescriptor();
     com.google.api.ResourceProto.getDescriptor();
     com.google.cloud.dialogflow.cx.v3.AdvancedSettingsProto.getDescriptor();
+    com.google.cloud.dialogflow.cx.v3.AudioConfigProto.getDescriptor();
     com.google.cloud.dialogflow.cx.v3.FlowProto.getDescriptor();
     com.google.longrunning.OperationsProto.getDescriptor();
     com.google.protobuf.EmptyProto.getDescriptor();
     com.google.protobuf.FieldMaskProto.getDescriptor();
+    com.google.protobuf.StructProto.getDescriptor();
   }
 
   // @@protoc_insertion_point(outer_class_scope)
diff --git a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/AudioConfigProto.java b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/AudioConfigProto.java
index ccc339a2678c..219b64fe9f19 100644
--- a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/AudioConfigProto.java
+++ b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/AudioConfigProto.java
@@ -47,6 +47,14 @@ public static void registerAllExtensions(com.google.protobuf.ExtensionRegistry r
       internal_static_google_cloud_dialogflow_cx_v3_OutputAudioConfig_descriptor;
   static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
       internal_static_google_cloud_dialogflow_cx_v3_OutputAudioConfig_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3_TextToSpeechSettings_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3_TextToSpeechSettings_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3_TextToSpeechSettings_SynthesizeSpeechConfigsEntry_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3_TextToSpeechSettings_SynthesizeSpeechConfigsEntry_fieldAccessorTable;
 
   public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
     return descriptor;
@@ -83,33 +91,40 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
           + "d.dialogflow.cx.v3.OutputAudioEncodingB\003"
           + "\340A\002\022\031\n\021sample_rate_hertz\030\002 \001(\005\022W\n\030synthe"
           + "size_speech_config\030\003 \001(\01325.google.cloud."
-          + "dialogflow.cx.v3.SynthesizeSpeechConfig*"
-          + "\373\001\n\rAudioEncoding\022\036\n\032AUDIO_ENCODING_UNSP"
-          + "ECIFIED\020\000\022\034\n\030AUDIO_ENCODING_LINEAR_16\020\001\022"
-          + "\027\n\023AUDIO_ENCODING_FLAC\020\002\022\030\n\024AUDIO_ENCODI"
-          + "NG_MULAW\020\003\022\026\n\022AUDIO_ENCODING_AMR\020\004\022\031\n\025AU"
-          + "DIO_ENCODING_AMR_WB\020\005\022\033\n\027AUDIO_ENCODING_"
-          + "OGG_OPUS\020\006\022)\n%AUDIO_ENCODING_SPEEX_WITH_"
-          + "HEADER_BYTE\020\007*v\n\022SpeechModelVariant\022$\n S"
-          + "PEECH_MODEL_VARIANT_UNSPECIFIED\020\000\022\026\n\022USE"
-          + "_BEST_AVAILABLE\020\001\022\020\n\014USE_STANDARD\020\002\022\020\n\014U"
-          + "SE_ENHANCED\020\003*\215\001\n\017SsmlVoiceGender\022!\n\035SSM"
-          + "L_VOICE_GENDER_UNSPECIFIED\020\000\022\032\n\026SSML_VOI"
-          + "CE_GENDER_MALE\020\001\022\034\n\030SSML_VOICE_GENDER_FE"
-          + "MALE\020\002\022\035\n\031SSML_VOICE_GENDER_NEUTRAL\020\003*\354\001"
-          + "\n\023OutputAudioEncoding\022%\n!OUTPUT_AUDIO_EN"
-          + "CODING_UNSPECIFIED\020\000\022#\n\037OUTPUT_AUDIO_ENC"
-          + "ODING_LINEAR_16\020\001\022\035\n\031OUTPUT_AUDIO_ENCODI"
-          + "NG_MP3\020\002\022%\n!OUTPUT_AUDIO_ENCODING_MP3_64"
-          + "_KBPS\020\004\022\"\n\036OUTPUT_AUDIO_ENCODING_OGG_OPU"
-          + "S\020\003\022\037\n\033OUTPUT_AUDIO_ENCODING_MULAW\020\005B\216\002\n"
-          + "!com.google.cloud.dialogflow.cx.v3B\020Audi"
-          + "oConfigProtoP\001Z1cloud.google.com/go/dial"
-          + "ogflow/cx/apiv3/cxpb;cxpb\370\001\001\242\002\002DF\252\002\035Goog"
-          + "le.Cloud.Dialogflow.Cx.V3\352\002!Google::Clou"
-          + "d::Dialogflow::CX::V3\352AU\n\033automl.googlea"
-          + "pis.com/Model\0226projects/{project}/locati"
-          + "ons/{location}/models/{model}b\006proto3"
+          + "dialogflow.cx.v3.SynthesizeSpeechConfig\""
+          + "\202\002\n\024TextToSpeechSettings\022s\n\031synthesize_s"
+          + "peech_configs\030\001 \003(\0132P.google.cloud.dialo"
+          + "gflow.cx.v3.TextToSpeechSettings.Synthes"
+          + "izeSpeechConfigsEntry\032u\n\034SynthesizeSpeec"
+          + "hConfigsEntry\022\013\n\003key\030\001 \001(\t\022D\n\005value\030\002 \001("
+          + "\01325.google.cloud.dialogflow.cx.v3.Synthe"
+          + "sizeSpeechConfig:\0028\001*\373\001\n\rAudioEncoding\022\036"
+          + "\n\032AUDIO_ENCODING_UNSPECIFIED\020\000\022\034\n\030AUDIO_"
+          + "ENCODING_LINEAR_16\020\001\022\027\n\023AUDIO_ENCODING_F"
+          + "LAC\020\002\022\030\n\024AUDIO_ENCODING_MULAW\020\003\022\026\n\022AUDIO"
+          + "_ENCODING_AMR\020\004\022\031\n\025AUDIO_ENCODING_AMR_WB"
+          + "\020\005\022\033\n\027AUDIO_ENCODING_OGG_OPUS\020\006\022)\n%AUDIO"
+          + "_ENCODING_SPEEX_WITH_HEADER_BYTE\020\007*v\n\022Sp"
+          + "eechModelVariant\022$\n SPEECH_MODEL_VARIANT"
+          + "_UNSPECIFIED\020\000\022\026\n\022USE_BEST_AVAILABLE\020\001\022\020"
+          + "\n\014USE_STANDARD\020\002\022\020\n\014USE_ENHANCED\020\003*\215\001\n\017S"
+          + "smlVoiceGender\022!\n\035SSML_VOICE_GENDER_UNSP"
+          + "ECIFIED\020\000\022\032\n\026SSML_VOICE_GENDER_MALE\020\001\022\034\n"
+          + "\030SSML_VOICE_GENDER_FEMALE\020\002\022\035\n\031SSML_VOIC"
+          + "E_GENDER_NEUTRAL\020\003*\354\001\n\023OutputAudioEncodi"
+          + "ng\022%\n!OUTPUT_AUDIO_ENCODING_UNSPECIFIED\020"
+          + "\000\022#\n\037OUTPUT_AUDIO_ENCODING_LINEAR_16\020\001\022\035"
+          + "\n\031OUTPUT_AUDIO_ENCODING_MP3\020\002\022%\n!OUTPUT_"
+          + "AUDIO_ENCODING_MP3_64_KBPS\020\004\022\"\n\036OUTPUT_A"
+          + "UDIO_ENCODING_OGG_OPUS\020\003\022\037\n\033OUTPUT_AUDIO"
+          + "_ENCODING_MULAW\020\005B\216\002\n!com.google.cloud.d"
+          + "ialogflow.cx.v3B\020AudioConfigProtoP\001Z1clo"
+          + "ud.google.com/go/dialogflow/cx/apiv3/cxp"
+          + "b;cxpb\370\001\001\242\002\002DF\252\002\035Google.Cloud.Dialogflow"
+          + ".Cx.V3\352\002!Google::Cloud::Dialogflow::CX::"
+          + "V3\352AU\n\033automl.googleapis.com/Model\0226proj"
+          + "ects/{project}/locations/{location}/mode"
+          + "ls/{model}b\006proto3"
     };
     descriptor =
         com.google.protobuf.Descriptors.FileDescriptor.internalBuildGeneratedFileFrom(
@@ -165,6 +180,24 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
             new java.lang.String[] {
               "AudioEncoding", "SampleRateHertz", "SynthesizeSpeechConfig",
             });
+    internal_static_google_cloud_dialogflow_cx_v3_TextToSpeechSettings_descriptor =
+        getDescriptor().getMessageTypes().get(5);
+    internal_static_google_cloud_dialogflow_cx_v3_TextToSpeechSettings_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3_TextToSpeechSettings_descriptor,
+            new java.lang.String[] {
+              "SynthesizeSpeechConfigs",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3_TextToSpeechSettings_SynthesizeSpeechConfigsEntry_descriptor =
+        internal_static_google_cloud_dialogflow_cx_v3_TextToSpeechSettings_descriptor
+            .getNestedTypes()
+            .get(0);
+    internal_static_google_cloud_dialogflow_cx_v3_TextToSpeechSettings_SynthesizeSpeechConfigsEntry_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3_TextToSpeechSettings_SynthesizeSpeechConfigsEntry_descriptor,
+            new java.lang.String[] {
+              "Key", "Value",
+            });
     com.google.protobuf.ExtensionRegistry registry =
         com.google.protobuf.ExtensionRegistry.newInstance();
     registry.add(com.google.api.FieldBehaviorProto.fieldBehavior);
diff --git a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/Environment.java b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/Environment.java
index 2da14ea2989c..83b16a2b9a19 100644
--- a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/Environment.java
+++ b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/Environment.java
@@ -3079,14 +3079,13 @@ public com.google.protobuf.ByteString getDescriptionBytes() {
    *
    *
    * <pre>
-   * Required. A list of configurations for flow versions. You should include
-   * version configs for all flows that are reachable from [`Start
+   * A list of configurations for flow versions. You should include version
+   * configs for all flows that are reachable from [`Start
    * Flow`][Agent.start_flow] in the agent. Otherwise, an error will be
    * returned.
    * </pre>
    *
-   * <code>
-   * repeated .google.cloud.dialogflow.cx.v3.Environment.VersionConfig version_configs = 6 [(.google.api.field_behavior) = REQUIRED];
+   * <code>repeated .google.cloud.dialogflow.cx.v3.Environment.VersionConfig version_configs = 6;
    * </code>
    */
   @java.lang.Override
@@ -3098,14 +3097,13 @@ public com.google.protobuf.ByteString getDescriptionBytes() {
    *
    *
    * <pre>
-   * Required. A list of configurations for flow versions. You should include
-   * version configs for all flows that are reachable from [`Start
+   * A list of configurations for flow versions. You should include version
+   * configs for all flows that are reachable from [`Start
    * Flow`][Agent.start_flow] in the agent. Otherwise, an error will be
    * returned.
    * </pre>
    *
-   * <code>
-   * repeated .google.cloud.dialogflow.cx.v3.Environment.VersionConfig version_configs = 6 [(.google.api.field_behavior) = REQUIRED];
+   * <code>repeated .google.cloud.dialogflow.cx.v3.Environment.VersionConfig version_configs = 6;
    * </code>
    */
   @java.lang.Override
@@ -3118,14 +3116,13 @@ public com.google.protobuf.ByteString getDescriptionBytes() {
    *
    *
    * <pre>
-   * Required. A list of configurations for flow versions. You should include
-   * version configs for all flows that are reachable from [`Start
+   * A list of configurations for flow versions. You should include version
+   * configs for all flows that are reachable from [`Start
    * Flow`][Agent.start_flow] in the agent. Otherwise, an error will be
    * returned.
    * </pre>
    *
-   * <code>
-   * repeated .google.cloud.dialogflow.cx.v3.Environment.VersionConfig version_configs = 6 [(.google.api.field_behavior) = REQUIRED];
+   * <code>repeated .google.cloud.dialogflow.cx.v3.Environment.VersionConfig version_configs = 6;
    * </code>
    */
   @java.lang.Override
@@ -3136,14 +3133,13 @@ public int getVersionConfigsCount() {
    *
    *
    * <pre>
-   * Required. A list of configurations for flow versions. You should include
-   * version configs for all flows that are reachable from [`Start
+   * A list of configurations for flow versions. You should include version
+   * configs for all flows that are reachable from [`Start
    * Flow`][Agent.start_flow] in the agent. Otherwise, an error will be
    * returned.
    * </pre>
    *
-   * <code>
-   * repeated .google.cloud.dialogflow.cx.v3.Environment.VersionConfig version_configs = 6 [(.google.api.field_behavior) = REQUIRED];
+   * <code>repeated .google.cloud.dialogflow.cx.v3.Environment.VersionConfig version_configs = 6;
    * </code>
    */
   @java.lang.Override
@@ -3154,14 +3150,13 @@ public com.google.cloud.dialogflow.cx.v3.Environment.VersionConfig getVersionCon
    *
    *
    * <pre>
-   * Required. A list of configurations for flow versions. You should include
-   * version configs for all flows that are reachable from [`Start
+   * A list of configurations for flow versions. You should include version
+   * configs for all flows that are reachable from [`Start
    * Flow`][Agent.start_flow] in the agent. Otherwise, an error will be
    * returned.
    * </pre>
    *
-   * <code>
-   * repeated .google.cloud.dialogflow.cx.v3.Environment.VersionConfig version_configs = 6 [(.google.api.field_behavior) = REQUIRED];
+   * <code>repeated .google.cloud.dialogflow.cx.v3.Environment.VersionConfig version_configs = 6;
    * </code>
    */
   @java.lang.Override
@@ -4244,14 +4239,13 @@ private void ensureVersionConfigsIsMutable() {
      *
      *
      * <pre>
-     * Required. A list of configurations for flow versions. You should include
-     * version configs for all flows that are reachable from [`Start
+     * A list of configurations for flow versions. You should include version
+     * configs for all flows that are reachable from [`Start
      * Flow`][Agent.start_flow] in the agent. Otherwise, an error will be
      * returned.
      * </pre>
      *
-     * <code>
-     * repeated .google.cloud.dialogflow.cx.v3.Environment.VersionConfig version_configs = 6 [(.google.api.field_behavior) = REQUIRED];
+     * <code>repeated .google.cloud.dialogflow.cx.v3.Environment.VersionConfig version_configs = 6;
      * </code>
      */
     public java.util.List<com.google.cloud.dialogflow.cx.v3.Environment.VersionConfig>
@@ -4266,14 +4260,13 @@ private void ensureVersionConfigsIsMutable() {
      *
      *
      * <pre>
-     * Required. A list of configurations for flow versions. You should include
-     * version configs for all flows that are reachable from [`Start
+     * A list of configurations for flow versions. You should include version
+     * configs for all flows that are reachable from [`Start
      * Flow`][Agent.start_flow] in the agent. Otherwise, an error will be
      * returned.
      * </pre>
      *
-     * <code>
-     * repeated .google.cloud.dialogflow.cx.v3.Environment.VersionConfig version_configs = 6 [(.google.api.field_behavior) = REQUIRED];
+     * <code>repeated .google.cloud.dialogflow.cx.v3.Environment.VersionConfig version_configs = 6;
      * </code>
      */
     public int getVersionConfigsCount() {
@@ -4287,14 +4280,13 @@ public int getVersionConfigsCount() {
      *
      *
      * <pre>
-     * Required. A list of configurations for flow versions. You should include
-     * version configs for all flows that are reachable from [`Start
+     * A list of configurations for flow versions. You should include version
+     * configs for all flows that are reachable from [`Start
      * Flow`][Agent.start_flow] in the agent. Otherwise, an error will be
      * returned.
      * </pre>
      *
-     * <code>
-     * repeated .google.cloud.dialogflow.cx.v3.Environment.VersionConfig version_configs = 6 [(.google.api.field_behavior) = REQUIRED];
+     * <code>repeated .google.cloud.dialogflow.cx.v3.Environment.VersionConfig version_configs = 6;
      * </code>
      */
     public com.google.cloud.dialogflow.cx.v3.Environment.VersionConfig getVersionConfigs(
@@ -4309,14 +4301,13 @@ public com.google.cloud.dialogflow.cx.v3.Environment.VersionConfig getVersionCon
      *
      *
      * <pre>
-     * Required. A list of configurations for flow versions. You should include
-     * version configs for all flows that are reachable from [`Start
+     * A list of configurations for flow versions. You should include version
+     * configs for all flows that are reachable from [`Start
      * Flow`][Agent.start_flow] in the agent. Otherwise, an error will be
      * returned.
      * </pre>
      *
-     * <code>
-     * repeated .google.cloud.dialogflow.cx.v3.Environment.VersionConfig version_configs = 6 [(.google.api.field_behavior) = REQUIRED];
+     * <code>repeated .google.cloud.dialogflow.cx.v3.Environment.VersionConfig version_configs = 6;
      * </code>
      */
     public Builder setVersionConfigs(
@@ -4337,14 +4328,13 @@ public Builder setVersionConfigs(
      *
      *
      * <pre>
-     * Required. A list of configurations for flow versions. You should include
-     * version configs for all flows that are reachable from [`Start
+     * A list of configurations for flow versions. You should include version
+     * configs for all flows that are reachable from [`Start
      * Flow`][Agent.start_flow] in the agent. Otherwise, an error will be
      * returned.
      * </pre>
      *
-     * <code>
-     * repeated .google.cloud.dialogflow.cx.v3.Environment.VersionConfig version_configs = 6 [(.google.api.field_behavior) = REQUIRED];
+     * <code>repeated .google.cloud.dialogflow.cx.v3.Environment.VersionConfig version_configs = 6;
      * </code>
      */
     public Builder setVersionConfigs(
@@ -4363,14 +4353,13 @@ public Builder setVersionConfigs(
      *
      *
      * <pre>
-     * Required. A list of configurations for flow versions. You should include
-     * version configs for all flows that are reachable from [`Start
+     * A list of configurations for flow versions. You should include version
+     * configs for all flows that are reachable from [`Start
      * Flow`][Agent.start_flow] in the agent. Otherwise, an error will be
      * returned.
      * </pre>
      *
-     * <code>
-     * repeated .google.cloud.dialogflow.cx.v3.Environment.VersionConfig version_configs = 6 [(.google.api.field_behavior) = REQUIRED];
+     * <code>repeated .google.cloud.dialogflow.cx.v3.Environment.VersionConfig version_configs = 6;
      * </code>
      */
     public Builder addVersionConfigs(
@@ -4391,14 +4380,13 @@ public Builder addVersionConfigs(
      *
      *
      * <pre>
-     * Required. A list of configurations for flow versions. You should include
-     * version configs for all flows that are reachable from [`Start
+     * A list of configurations for flow versions. You should include version
+     * configs for all flows that are reachable from [`Start
      * Flow`][Agent.start_flow] in the agent. Otherwise, an error will be
      * returned.
      * </pre>
      *
-     * <code>
-     * repeated .google.cloud.dialogflow.cx.v3.Environment.VersionConfig version_configs = 6 [(.google.api.field_behavior) = REQUIRED];
+     * <code>repeated .google.cloud.dialogflow.cx.v3.Environment.VersionConfig version_configs = 6;
      * </code>
      */
     public Builder addVersionConfigs(
@@ -4419,14 +4407,13 @@ public Builder addVersionConfigs(
      *
      *
      * <pre>
-     * Required. A list of configurations for flow versions. You should include
-     * version configs for all flows that are reachable from [`Start
+     * A list of configurations for flow versions. You should include version
+     * configs for all flows that are reachable from [`Start
      * Flow`][Agent.start_flow] in the agent. Otherwise, an error will be
      * returned.
      * </pre>
      *
-     * <code>
-     * repeated .google.cloud.dialogflow.cx.v3.Environment.VersionConfig version_configs = 6 [(.google.api.field_behavior) = REQUIRED];
+     * <code>repeated .google.cloud.dialogflow.cx.v3.Environment.VersionConfig version_configs = 6;
      * </code>
      */
     public Builder addVersionConfigs(
@@ -4444,14 +4431,13 @@ public Builder addVersionConfigs(
      *
      *
      * <pre>
-     * Required. A list of configurations for flow versions. You should include
-     * version configs for all flows that are reachable from [`Start
+     * A list of configurations for flow versions. You should include version
+     * configs for all flows that are reachable from [`Start
      * Flow`][Agent.start_flow] in the agent. Otherwise, an error will be
      * returned.
      * </pre>
      *
-     * <code>
-     * repeated .google.cloud.dialogflow.cx.v3.Environment.VersionConfig version_configs = 6 [(.google.api.field_behavior) = REQUIRED];
+     * <code>repeated .google.cloud.dialogflow.cx.v3.Environment.VersionConfig version_configs = 6;
      * </code>
      */
     public Builder addVersionConfigs(
@@ -4470,14 +4456,13 @@ public Builder addVersionConfigs(
      *
      *
      * <pre>
-     * Required. A list of configurations for flow versions. You should include
-     * version configs for all flows that are reachable from [`Start
+     * A list of configurations for flow versions. You should include version
+     * configs for all flows that are reachable from [`Start
      * Flow`][Agent.start_flow] in the agent. Otherwise, an error will be
      * returned.
      * </pre>
      *
-     * <code>
-     * repeated .google.cloud.dialogflow.cx.v3.Environment.VersionConfig version_configs = 6 [(.google.api.field_behavior) = REQUIRED];
+     * <code>repeated .google.cloud.dialogflow.cx.v3.Environment.VersionConfig version_configs = 6;
      * </code>
      */
     public Builder addAllVersionConfigs(
@@ -4496,14 +4481,13 @@ public Builder addAllVersionConfigs(
      *
      *
      * <pre>
-     * Required. A list of configurations for flow versions. You should include
-     * version configs for all flows that are reachable from [`Start
+     * A list of configurations for flow versions. You should include version
+     * configs for all flows that are reachable from [`Start
      * Flow`][Agent.start_flow] in the agent. Otherwise, an error will be
      * returned.
      * </pre>
      *
-     * <code>
-     * repeated .google.cloud.dialogflow.cx.v3.Environment.VersionConfig version_configs = 6 [(.google.api.field_behavior) = REQUIRED];
+     * <code>repeated .google.cloud.dialogflow.cx.v3.Environment.VersionConfig version_configs = 6;
      * </code>
      */
     public Builder clearVersionConfigs() {
@@ -4520,14 +4504,13 @@ public Builder clearVersionConfigs() {
      *
      *
      * <pre>
-     * Required. A list of configurations for flow versions. You should include
-     * version configs for all flows that are reachable from [`Start
+     * A list of configurations for flow versions. You should include version
+     * configs for all flows that are reachable from [`Start
      * Flow`][Agent.start_flow] in the agent. Otherwise, an error will be
      * returned.
      * </pre>
      *
-     * <code>
-     * repeated .google.cloud.dialogflow.cx.v3.Environment.VersionConfig version_configs = 6 [(.google.api.field_behavior) = REQUIRED];
+     * <code>repeated .google.cloud.dialogflow.cx.v3.Environment.VersionConfig version_configs = 6;
      * </code>
      */
     public Builder removeVersionConfigs(int index) {
@@ -4544,14 +4527,13 @@ public Builder removeVersionConfigs(int index) {
      *
      *
      * <pre>
-     * Required. A list of configurations for flow versions. You should include
-     * version configs for all flows that are reachable from [`Start
+     * A list of configurations for flow versions. You should include version
+     * configs for all flows that are reachable from [`Start
      * Flow`][Agent.start_flow] in the agent. Otherwise, an error will be
      * returned.
      * </pre>
      *
-     * <code>
-     * repeated .google.cloud.dialogflow.cx.v3.Environment.VersionConfig version_configs = 6 [(.google.api.field_behavior) = REQUIRED];
+     * <code>repeated .google.cloud.dialogflow.cx.v3.Environment.VersionConfig version_configs = 6;
      * </code>
      */
     public com.google.cloud.dialogflow.cx.v3.Environment.VersionConfig.Builder
@@ -4562,14 +4544,13 @@ public Builder removeVersionConfigs(int index) {
      *
      *
      * <pre>
-     * Required. A list of configurations for flow versions. You should include
-     * version configs for all flows that are reachable from [`Start
+     * A list of configurations for flow versions. You should include version
+     * configs for all flows that are reachable from [`Start
      * Flow`][Agent.start_flow] in the agent. Otherwise, an error will be
      * returned.
      * </pre>
      *
-     * <code>
-     * repeated .google.cloud.dialogflow.cx.v3.Environment.VersionConfig version_configs = 6 [(.google.api.field_behavior) = REQUIRED];
+     * <code>repeated .google.cloud.dialogflow.cx.v3.Environment.VersionConfig version_configs = 6;
      * </code>
      */
     public com.google.cloud.dialogflow.cx.v3.Environment.VersionConfigOrBuilder
@@ -4584,14 +4565,13 @@ public Builder removeVersionConfigs(int index) {
      *
      *
      * <pre>
-     * Required. A list of configurations for flow versions. You should include
-     * version configs for all flows that are reachable from [`Start
+     * A list of configurations for flow versions. You should include version
+     * configs for all flows that are reachable from [`Start
      * Flow`][Agent.start_flow] in the agent. Otherwise, an error will be
      * returned.
      * </pre>
      *
-     * <code>
-     * repeated .google.cloud.dialogflow.cx.v3.Environment.VersionConfig version_configs = 6 [(.google.api.field_behavior) = REQUIRED];
+     * <code>repeated .google.cloud.dialogflow.cx.v3.Environment.VersionConfig version_configs = 6;
      * </code>
      */
     public java.util.List<
@@ -4607,14 +4587,13 @@ public Builder removeVersionConfigs(int index) {
      *
      *
      * <pre>
-     * Required. A list of configurations for flow versions. You should include
-     * version configs for all flows that are reachable from [`Start
+     * A list of configurations for flow versions. You should include version
+     * configs for all flows that are reachable from [`Start
      * Flow`][Agent.start_flow] in the agent. Otherwise, an error will be
      * returned.
      * </pre>
      *
-     * <code>
-     * repeated .google.cloud.dialogflow.cx.v3.Environment.VersionConfig version_configs = 6 [(.google.api.field_behavior) = REQUIRED];
+     * <code>repeated .google.cloud.dialogflow.cx.v3.Environment.VersionConfig version_configs = 6;
      * </code>
      */
     public com.google.cloud.dialogflow.cx.v3.Environment.VersionConfig.Builder
@@ -4627,14 +4606,13 @@ public Builder removeVersionConfigs(int index) {
      *
      *
      * <pre>
-     * Required. A list of configurations for flow versions. You should include
-     * version configs for all flows that are reachable from [`Start
+     * A list of configurations for flow versions. You should include version
+     * configs for all flows that are reachable from [`Start
      * Flow`][Agent.start_flow] in the agent. Otherwise, an error will be
      * returned.
      * </pre>
      *
-     * <code>
-     * repeated .google.cloud.dialogflow.cx.v3.Environment.VersionConfig version_configs = 6 [(.google.api.field_behavior) = REQUIRED];
+     * <code>repeated .google.cloud.dialogflow.cx.v3.Environment.VersionConfig version_configs = 6;
      * </code>
      */
     public com.google.cloud.dialogflow.cx.v3.Environment.VersionConfig.Builder
@@ -4648,14 +4626,13 @@ public Builder removeVersionConfigs(int index) {
      *
      *
      * <pre>
-     * Required. A list of configurations for flow versions. You should include
-     * version configs for all flows that are reachable from [`Start
+     * A list of configurations for flow versions. You should include version
+     * configs for all flows that are reachable from [`Start
      * Flow`][Agent.start_flow] in the agent. Otherwise, an error will be
      * returned.
      * </pre>
      *
-     * <code>
-     * repeated .google.cloud.dialogflow.cx.v3.Environment.VersionConfig version_configs = 6 [(.google.api.field_behavior) = REQUIRED];
+     * <code>repeated .google.cloud.dialogflow.cx.v3.Environment.VersionConfig version_configs = 6;
      * </code>
      */
     public java.util.List<com.google.cloud.dialogflow.cx.v3.Environment.VersionConfig.Builder>
diff --git a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/EnvironmentOrBuilder.java b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/EnvironmentOrBuilder.java
index c23bc3a07232..46e83c36744e 100644
--- a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/EnvironmentOrBuilder.java
+++ b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/EnvironmentOrBuilder.java
@@ -110,14 +110,13 @@ public interface EnvironmentOrBuilder
    *
    *
    * <pre>
-   * Required. A list of configurations for flow versions. You should include
-   * version configs for all flows that are reachable from [`Start
+   * A list of configurations for flow versions. You should include version
+   * configs for all flows that are reachable from [`Start
    * Flow`][Agent.start_flow] in the agent. Otherwise, an error will be
    * returned.
    * </pre>
    *
-   * <code>
-   * repeated .google.cloud.dialogflow.cx.v3.Environment.VersionConfig version_configs = 6 [(.google.api.field_behavior) = REQUIRED];
+   * <code>repeated .google.cloud.dialogflow.cx.v3.Environment.VersionConfig version_configs = 6;
    * </code>
    */
   java.util.List<com.google.cloud.dialogflow.cx.v3.Environment.VersionConfig>
@@ -126,14 +125,13 @@ public interface EnvironmentOrBuilder
    *
    *
    * <pre>
-   * Required. A list of configurations for flow versions. You should include
-   * version configs for all flows that are reachable from [`Start
+   * A list of configurations for flow versions. You should include version
+   * configs for all flows that are reachable from [`Start
    * Flow`][Agent.start_flow] in the agent. Otherwise, an error will be
    * returned.
    * </pre>
    *
-   * <code>
-   * repeated .google.cloud.dialogflow.cx.v3.Environment.VersionConfig version_configs = 6 [(.google.api.field_behavior) = REQUIRED];
+   * <code>repeated .google.cloud.dialogflow.cx.v3.Environment.VersionConfig version_configs = 6;
    * </code>
    */
   com.google.cloud.dialogflow.cx.v3.Environment.VersionConfig getVersionConfigs(int index);
@@ -141,14 +139,13 @@ public interface EnvironmentOrBuilder
    *
    *
    * <pre>
-   * Required. A list of configurations for flow versions. You should include
-   * version configs for all flows that are reachable from [`Start
+   * A list of configurations for flow versions. You should include version
+   * configs for all flows that are reachable from [`Start
    * Flow`][Agent.start_flow] in the agent. Otherwise, an error will be
    * returned.
    * </pre>
    *
-   * <code>
-   * repeated .google.cloud.dialogflow.cx.v3.Environment.VersionConfig version_configs = 6 [(.google.api.field_behavior) = REQUIRED];
+   * <code>repeated .google.cloud.dialogflow.cx.v3.Environment.VersionConfig version_configs = 6;
    * </code>
    */
   int getVersionConfigsCount();
@@ -156,14 +153,13 @@ public interface EnvironmentOrBuilder
    *
    *
    * <pre>
-   * Required. A list of configurations for flow versions. You should include
-   * version configs for all flows that are reachable from [`Start
+   * A list of configurations for flow versions. You should include version
+   * configs for all flows that are reachable from [`Start
    * Flow`][Agent.start_flow] in the agent. Otherwise, an error will be
    * returned.
    * </pre>
    *
-   * <code>
-   * repeated .google.cloud.dialogflow.cx.v3.Environment.VersionConfig version_configs = 6 [(.google.api.field_behavior) = REQUIRED];
+   * <code>repeated .google.cloud.dialogflow.cx.v3.Environment.VersionConfig version_configs = 6;
    * </code>
    */
   java.util.List<? extends com.google.cloud.dialogflow.cx.v3.Environment.VersionConfigOrBuilder>
@@ -172,14 +168,13 @@ public interface EnvironmentOrBuilder
    *
    *
    * <pre>
-   * Required. A list of configurations for flow versions. You should include
-   * version configs for all flows that are reachable from [`Start
+   * A list of configurations for flow versions. You should include version
+   * configs for all flows that are reachable from [`Start
    * Flow`][Agent.start_flow] in the agent. Otherwise, an error will be
    * returned.
    * </pre>
    *
-   * <code>
-   * repeated .google.cloud.dialogflow.cx.v3.Environment.VersionConfig version_configs = 6 [(.google.api.field_behavior) = REQUIRED];
+   * <code>repeated .google.cloud.dialogflow.cx.v3.Environment.VersionConfig version_configs = 6;
    * </code>
    */
   com.google.cloud.dialogflow.cx.v3.Environment.VersionConfigOrBuilder getVersionConfigsOrBuilder(
diff --git a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/EnvironmentProto.java b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/EnvironmentProto.java
index 2cd1b58581b0..34fa08e15d01 100644
--- a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/EnvironmentProto.java
+++ b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/EnvironmentProto.java
@@ -129,151 +129,152 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
           + "to\032+google/cloud/dialogflow/cx/v3/webhoo"
           + "k.proto\032#google/longrunning/operations.p"
           + "roto\032\033google/protobuf/empty.proto\032 googl"
-          + "e/protobuf/field_mask.proto\032\037google/prot"
-          + "obuf/timestamp.proto\"\264\006\n\013Environment\022\014\n\004"
-          + "name\030\001 \001(\t\022\031\n\014display_name\030\002 \001(\tB\003\340A\002\022\023\n"
-          + "\013description\030\003 \001(\t\022V\n\017version_configs\030\006 "
-          + "\003(\01328.google.cloud.dialogflow.cx.v3.Envi"
-          + "ronment.VersionConfigB\003\340A\002\0224\n\013update_tim"
-          + "e\030\005 \001(\0132\032.google.protobuf.TimestampB\003\340A\003"
-          + "\022U\n\021test_cases_config\030\007 \001(\0132:.google.clo"
-          + "ud.dialogflow.cx.v3.Environment.TestCase"
-          + "sConfig\022P\n\016webhook_config\030\n \001(\01328.google"
-          + ".cloud.dialogflow.cx.v3.Environment.Webh"
-          + "ookConfig\032K\n\rVersionConfig\022:\n\007version\030\001 "
-          + "\001(\tB)\340A\002\372A#\n!dialogflow.googleapis.com/V"
-          + "ersion\032\217\001\n\017TestCasesConfig\022;\n\ntest_cases"
-          + "\030\001 \003(\tB\'\372A$\n\"dialogflow.googleapis.com/T"
-          + "estCase\022\035\n\025enable_continuous_run\030\002 \001(\010\022 "
-          + "\n\030enable_predeployment_run\030\003 \001(\010\032R\n\rWebh"
-          + "ookConfig\022A\n\021webhook_overrides\030\001 \003(\0132&.g"
-          + "oogle.cloud.dialogflow.cx.v3.Webhook:}\352A"
-          + "z\n%dialogflow.googleapis.com/Environment"
-          + "\022Qprojects/{project}/locations/{location"
-          + "}/agents/{agent}/environments/{environme"
-          + "nt}\"\177\n\027ListEnvironmentsRequest\022=\n\006parent"
-          + "\030\001 \001(\tB-\340A\002\372A\'\022%dialogflow.googleapis.co"
-          + "m/Environment\022\021\n\tpage_size\030\002 \001(\005\022\022\n\npage"
-          + "_token\030\003 \001(\t\"u\n\030ListEnvironmentsResponse"
-          + "\022@\n\014environments\030\001 \003(\0132*.google.cloud.di"
-          + "alogflow.cx.v3.Environment\022\027\n\017next_page_"
-          + "token\030\002 \001(\t\"T\n\025GetEnvironmentRequest\022;\n\004"
-          + "name\030\001 \001(\tB-\340A\002\372A\'\n%dialogflow.googleapi"
-          + "s.com/Environment\"\237\001\n\030CreateEnvironmentR"
-          + "equest\022=\n\006parent\030\001 \001(\tB-\340A\002\372A\'\022%dialogfl"
-          + "ow.googleapis.com/Environment\022D\n\013environ"
-          + "ment\030\002 \001(\0132*.google.cloud.dialogflow.cx."
-          + "v3.EnvironmentB\003\340A\002\"\226\001\n\030UpdateEnvironmen"
-          + "tRequest\022D\n\013environment\030\001 \001(\0132*.google.c"
-          + "loud.dialogflow.cx.v3.EnvironmentB\003\340A\002\0224"
-          + "\n\013update_mask\030\002 \001(\0132\032.google.protobuf.Fi"
-          + "eldMaskB\003\340A\002\"W\n\030DeleteEnvironmentRequest"
-          + "\022;\n\004name\030\001 \001(\tB-\340A\002\372A\'\n%dialogflow.googl"
-          + "eapis.com/Environment\"\205\001\n\037LookupEnvironm"
-          + "entHistoryRequest\022;\n\004name\030\001 \001(\tB-\340A\002\372A\'\n"
+          + "e/protobuf/field_mask.proto\032\034google/prot"
+          + "obuf/struct.proto\032\037google/protobuf/times"
+          + "tamp.proto\"\257\006\n\013Environment\022\014\n\004name\030\001 \001(\t"
+          + "\022\031\n\014display_name\030\002 \001(\tB\003\340A\002\022\023\n\013descripti"
+          + "on\030\003 \001(\t\022Q\n\017version_configs\030\006 \003(\01328.goog"
+          + "le.cloud.dialogflow.cx.v3.Environment.Ve"
+          + "rsionConfig\0224\n\013update_time\030\005 \001(\0132\032.googl"
+          + "e.protobuf.TimestampB\003\340A\003\022U\n\021test_cases_"
+          + "config\030\007 \001(\0132:.google.cloud.dialogflow.c"
+          + "x.v3.Environment.TestCasesConfig\022P\n\016webh"
+          + "ook_config\030\n \001(\01328.google.cloud.dialogfl"
+          + "ow.cx.v3.Environment.WebhookConfig\032K\n\rVe"
+          + "rsionConfig\022:\n\007version\030\001 \001(\tB)\340A\002\372A#\n!di"
+          + "alogflow.googleapis.com/Version\032\217\001\n\017Test"
+          + "CasesConfig\022;\n\ntest_cases\030\001 \003(\tB\'\372A$\n\"di"
+          + "alogflow.googleapis.com/TestCase\022\035\n\025enab"
+          + "le_continuous_run\030\002 \001(\010\022 \n\030enable_predep"
+          + "loyment_run\030\003 \001(\010\032R\n\rWebhookConfig\022A\n\021we"
+          + "bhook_overrides\030\001 \003(\0132&.google.cloud.dia"
+          + "logflow.cx.v3.Webhook:}\352Az\n%dialogflow.g"
+          + "oogleapis.com/Environment\022Qprojects/{pro"
+          + "ject}/locations/{location}/agents/{agent"
+          + "}/environments/{environment}\"\177\n\027ListEnvi"
+          + "ronmentsRequest\022=\n\006parent\030\001 \001(\tB-\340A\002\372A\'\022"
           + "%dialogflow.googleapis.com/Environment\022\021"
-          + "\n\tpage_size\030\002 \001(\005\022\022\n\npage_token\030\003 \001(\t\"}\n"
-          + " LookupEnvironmentHistoryResponse\022@\n\014env"
-          + "ironments\030\001 \003(\0132*.google.cloud.dialogflo"
-          + "w.cx.v3.Environment\022\027\n\017next_page_token\030\002"
-          + " \001(\t\"\210\004\n\024ContinuousTestResult\022\014\n\004name\030\001 "
-          + "\001(\t\022X\n\006result\030\002 \001(\0162H.google.cloud.dialo"
-          + "gflow.cx.v3.ContinuousTestResult.Aggrega"
-          + "tedTestResult\022H\n\021test_case_results\030\003 \003(\t"
-          + "B-\372A*\n(dialogflow.googleapis.com/TestCas"
-          + "eResult\022,\n\010run_time\030\004 \001(\0132\032.google.proto"
-          + "buf.Timestamp\"V\n\024AggregatedTestResult\022&\n"
-          + "\"AGGREGATED_TEST_RESULT_UNSPECIFIED\020\000\022\n\n"
-          + "\006PASSED\020\001\022\n\n\006FAILED\020\002:\267\001\352A\263\001\n.dialogflow"
-          + ".googleapis.com/ContinuousTestResult\022\200\001p"
-          + "rojects/{project}/locations/{location}/a"
-          + "gents/{agent}/environments/{environment}"
-          + "/continuousTestResults/{continuous_test_"
-          + "result}\"^\n\030RunContinuousTestRequest\022B\n\013e"
-          + "nvironment\030\001 \001(\tB-\340A\002\372A\'\n%dialogflow.goo"
-          + "gleapis.com/Environment\"p\n\031RunContinuous"
-          + "TestResponse\022S\n\026continuous_test_result\030\001"
-          + " \001(\01323.google.cloud.dialogflow.cx.v3.Con"
-          + "tinuousTestResult\"U\n\031RunContinuousTestMe"
-          + "tadata\0228\n\006errors\030\001 \003(\0132(.google.cloud.di"
-          + "alogflow.cx.v3.TestError\"\221\001\n ListContinu"
-          + "ousTestResultsRequest\022F\n\006parent\030\001 \001(\tB6\340"
-          + "A\002\372A0\022.dialogflow.googleapis.com/Continu"
-          + "ousTestResult\022\021\n\tpage_size\030\002 \001(\005\022\022\n\npage"
-          + "_token\030\003 \001(\t\"\222\001\n!ListContinuousTestResul"
-          + "tsResponse\022T\n\027continuous_test_results\030\001 "
-          + "\003(\01323.google.cloud.dialogflow.cx.v3.Cont"
-          + "inuousTestResult\022\027\n\017next_page_token\030\002 \001("
-          + "\t\"\230\001\n\021DeployFlowRequest\022B\n\013environment\030\001"
-          + " \001(\tB-\340A\002\372A\'\n%dialogflow.googleapis.com/"
-          + "Environment\022?\n\014flow_version\030\002 \001(\tB)\340A\002\372A"
-          + "#\n!dialogflow.googleapis.com/Version\"i\n\022"
-          + "DeployFlowResponse\022?\n\013environment\030\001 \001(\0132"
-          + "*.google.cloud.dialogflow.cx.v3.Environm"
-          + "ent\022\022\n\ndeployment\030\002 \001(\t\"S\n\022DeployFlowMet"
-          + "adata\022=\n\013test_errors\030\001 \003(\0132(.google.clou"
-          + "d.dialogflow.cx.v3.TestError2\304\021\n\014Environ"
-          + "ments\022\317\001\n\020ListEnvironments\0226.google.clou"
-          + "d.dialogflow.cx.v3.ListEnvironmentsReque"
-          + "st\0327.google.cloud.dialogflow.cx.v3.ListE"
-          + "nvironmentsResponse\"J\202\323\344\223\002;\0229/v3/{parent"
-          + "=projects/*/locations/*/agents/*}/enviro"
-          + "nments\332A\006parent\022\274\001\n\016GetEnvironment\0224.goo"
-          + "gle.cloud.dialogflow.cx.v3.GetEnvironmen"
-          + "tRequest\032*.google.cloud.dialogflow.cx.v3"
-          + ".Environment\"H\202\323\344\223\002;\0229/v3/{name=projects"
-          + "/*/locations/*/agents/*/environments/*}\332"
-          + "A\004name\022\371\001\n\021CreateEnvironment\0227.google.cl"
-          + "oud.dialogflow.cx.v3.CreateEnvironmentRe"
-          + "quest\032\035.google.longrunning.Operation\"\213\001\202"
-          + "\323\344\223\002H\"9/v3/{parent=projects/*/locations/"
-          + "*/agents/*}/environments:\013environment\332A\022"
-          + "parent,environment\312A%\n\013Environment\022\026goog"
-          + "le.protobuf.Struct\022\212\002\n\021UpdateEnvironment"
-          + "\0227.google.cloud.dialogflow.cx.v3.UpdateE"
-          + "nvironmentRequest\032\035.google.longrunning.O"
-          + "peration\"\234\001\202\323\344\223\002T2E/v3/{environment.name"
-          + "=projects/*/locations/*/agents/*/environ"
-          + "ments/*}:\013environment\332A\027environment,upda"
-          + "te_mask\312A%\n\013Environment\022\026google.protobuf"
-          + ".Struct\022\256\001\n\021DeleteEnvironment\0227.google.c"
-          + "loud.dialogflow.cx.v3.DeleteEnvironmentR"
-          + "equest\032\026.google.protobuf.Empty\"H\202\323\344\223\002;*9"
-          + "/v3/{name=projects/*/locations/*/agents/"
-          + "*/environments/*}\332A\004name\022\376\001\n\030LookupEnvir"
-          + "onmentHistory\022>.google.cloud.dialogflow."
-          + "cx.v3.LookupEnvironmentHistoryRequest\032?."
-          + "google.cloud.dialogflow.cx.v3.LookupEnvi"
-          + "ronmentHistoryResponse\"a\202\323\344\223\002T\022R/v3/{nam"
-          + "e=projects/*/locations/*/agents/*/enviro"
-          + "nments/*}:lookupEnvironmentHistory\332A\004nam"
-          + "e\022\204\002\n\021RunContinuousTest\0227.google.cloud.d"
-          + "ialogflow.cx.v3.RunContinuousTestRequest"
-          + "\032\035.google.longrunning.Operation\"\226\001\202\323\344\223\002W"
-          + "\"R/v3/{environment=projects/*/locations/"
-          + "*/agents/*/environments/*}:runContinuous"
-          + "Test:\001*\312A6\n\031RunContinuousTestResponse\022\031R"
-          + "unContinuousTestMetadata\022\202\002\n\031ListContinu"
-          + "ousTestResults\022?.google.cloud.dialogflow"
-          + ".cx.v3.ListContinuousTestResultsRequest\032"
-          + "@.google.cloud.dialogflow.cx.v3.ListCont"
-          + "inuousTestResultsResponse\"b\202\323\344\223\002S\022Q/v3/{"
-          + "parent=projects/*/locations/*/agents/*/e"
-          + "nvironments/*}/continuousTestResults\332A\006p"
-          + "arent\022\341\001\n\nDeployFlow\0220.google.cloud.dial"
-          + "ogflow.cx.v3.DeployFlowRequest\032\035.google."
-          + "longrunning.Operation\"\201\001\202\323\344\223\002P\"K/v3/{env"
-          + "ironment=projects/*/locations/*/agents/*"
-          + "/environments/*}:deployFlow:\001*\312A(\n\022Deplo"
-          + "yFlowResponse\022\022DeployFlowMetadata\032x\312A\031di"
-          + "alogflow.googleapis.com\322AYhttps://www.go"
-          + "ogleapis.com/auth/cloud-platform,https:/"
-          + "/www.googleapis.com/auth/dialogflowB\266\001\n!"
-          + "com.google.cloud.dialogflow.cx.v3B\020Envir"
-          + "onmentProtoP\001Z1cloud.google.com/go/dialo"
-          + "gflow/cx/apiv3/cxpb;cxpb\370\001\001\242\002\002DF\252\002\035Googl"
-          + "e.Cloud.Dialogflow.Cx.V3\352\002!Google::Cloud"
-          + "::Dialogflow::CX::V3b\006proto3"
+          + "\n\tpage_size\030\002 \001(\005\022\022\n\npage_token\030\003 \001(\t\"u\n"
+          + "\030ListEnvironmentsResponse\022@\n\014environment"
+          + "s\030\001 \003(\0132*.google.cloud.dialogflow.cx.v3."
+          + "Environment\022\027\n\017next_page_token\030\002 \001(\t\"T\n\025"
+          + "GetEnvironmentRequest\022;\n\004name\030\001 \001(\tB-\340A\002"
+          + "\372A\'\n%dialogflow.googleapis.com/Environme"
+          + "nt\"\237\001\n\030CreateEnvironmentRequest\022=\n\006paren"
+          + "t\030\001 \001(\tB-\340A\002\372A\'\022%dialogflow.googleapis.c"
+          + "om/Environment\022D\n\013environment\030\002 \001(\0132*.go"
+          + "ogle.cloud.dialogflow.cx.v3.EnvironmentB"
+          + "\003\340A\002\"\226\001\n\030UpdateEnvironmentRequest\022D\n\013env"
+          + "ironment\030\001 \001(\0132*.google.cloud.dialogflow"
+          + ".cx.v3.EnvironmentB\003\340A\002\0224\n\013update_mask\030\002"
+          + " \001(\0132\032.google.protobuf.FieldMaskB\003\340A\002\"W\n"
+          + "\030DeleteEnvironmentRequest\022;\n\004name\030\001 \001(\tB"
+          + "-\340A\002\372A\'\n%dialogflow.googleapis.com/Envir"
+          + "onment\"\205\001\n\037LookupEnvironmentHistoryReque"
+          + "st\022;\n\004name\030\001 \001(\tB-\340A\002\372A\'\n%dialogflow.goo"
+          + "gleapis.com/Environment\022\021\n\tpage_size\030\002 \001"
+          + "(\005\022\022\n\npage_token\030\003 \001(\t\"}\n LookupEnvironm"
+          + "entHistoryResponse\022@\n\014environments\030\001 \003(\013"
+          + "2*.google.cloud.dialogflow.cx.v3.Environ"
+          + "ment\022\027\n\017next_page_token\030\002 \001(\t\"\210\004\n\024Contin"
+          + "uousTestResult\022\014\n\004name\030\001 \001(\t\022X\n\006result\030\002"
+          + " \001(\0162H.google.cloud.dialogflow.cx.v3.Con"
+          + "tinuousTestResult.AggregatedTestResult\022H"
+          + "\n\021test_case_results\030\003 \003(\tB-\372A*\n(dialogfl"
+          + "ow.googleapis.com/TestCaseResult\022,\n\010run_"
+          + "time\030\004 \001(\0132\032.google.protobuf.Timestamp\"V"
+          + "\n\024AggregatedTestResult\022&\n\"AGGREGATED_TES"
+          + "T_RESULT_UNSPECIFIED\020\000\022\n\n\006PASSED\020\001\022\n\n\006FA"
+          + "ILED\020\002:\267\001\352A\263\001\n.dialogflow.googleapis.com"
+          + "/ContinuousTestResult\022\200\001projects/{projec"
+          + "t}/locations/{location}/agents/{agent}/e"
+          + "nvironments/{environment}/continuousTest"
+          + "Results/{continuous_test_result}\"^\n\030RunC"
+          + "ontinuousTestRequest\022B\n\013environment\030\001 \001("
+          + "\tB-\340A\002\372A\'\n%dialogflow.googleapis.com/Env"
+          + "ironment\"p\n\031RunContinuousTestResponse\022S\n"
+          + "\026continuous_test_result\030\001 \001(\01323.google.c"
+          + "loud.dialogflow.cx.v3.ContinuousTestResu"
+          + "lt\"U\n\031RunContinuousTestMetadata\0228\n\006error"
+          + "s\030\001 \003(\0132(.google.cloud.dialogflow.cx.v3."
+          + "TestError\"\221\001\n ListContinuousTestResultsR"
+          + "equest\022F\n\006parent\030\001 \001(\tB6\340A\002\372A0\022.dialogfl"
+          + "ow.googleapis.com/ContinuousTestResult\022\021"
+          + "\n\tpage_size\030\002 \001(\005\022\022\n\npage_token\030\003 \001(\t\"\222\001"
+          + "\n!ListContinuousTestResultsResponse\022T\n\027c"
+          + "ontinuous_test_results\030\001 \003(\01323.google.cl"
+          + "oud.dialogflow.cx.v3.ContinuousTestResul"
+          + "t\022\027\n\017next_page_token\030\002 \001(\t\"\230\001\n\021DeployFlo"
+          + "wRequest\022B\n\013environment\030\001 \001(\tB-\340A\002\372A\'\n%d"
+          + "ialogflow.googleapis.com/Environment\022?\n\014"
+          + "flow_version\030\002 \001(\tB)\340A\002\372A#\n!dialogflow.g"
+          + "oogleapis.com/Version\"i\n\022DeployFlowRespo"
+          + "nse\022?\n\013environment\030\001 \001(\0132*.google.cloud."
+          + "dialogflow.cx.v3.Environment\022\022\n\ndeployme"
+          + "nt\030\002 \001(\t\"S\n\022DeployFlowMetadata\022=\n\013test_e"
+          + "rrors\030\001 \003(\0132(.google.cloud.dialogflow.cx"
+          + ".v3.TestError2\304\021\n\014Environments\022\317\001\n\020ListE"
+          + "nvironments\0226.google.cloud.dialogflow.cx"
+          + ".v3.ListEnvironmentsRequest\0327.google.clo"
+          + "ud.dialogflow.cx.v3.ListEnvironmentsResp"
+          + "onse\"J\202\323\344\223\002;\0229/v3/{parent=projects/*/loc"
+          + "ations/*/agents/*}/environments\332A\006parent"
+          + "\022\274\001\n\016GetEnvironment\0224.google.cloud.dialo"
+          + "gflow.cx.v3.GetEnvironmentRequest\032*.goog"
+          + "le.cloud.dialogflow.cx.v3.Environment\"H\202"
+          + "\323\344\223\002;\0229/v3/{name=projects/*/locations/*/"
+          + "agents/*/environments/*}\332A\004name\022\371\001\n\021Crea"
+          + "teEnvironment\0227.google.cloud.dialogflow."
+          + "cx.v3.CreateEnvironmentRequest\032\035.google."
+          + "longrunning.Operation\"\213\001\202\323\344\223\002H\"9/v3/{par"
+          + "ent=projects/*/locations/*/agents/*}/env"
+          + "ironments:\013environment\332A\022parent,environm"
+          + "ent\312A%\n\013Environment\022\026google.protobuf.Str"
+          + "uct\022\212\002\n\021UpdateEnvironment\0227.google.cloud"
+          + ".dialogflow.cx.v3.UpdateEnvironmentReque"
+          + "st\032\035.google.longrunning.Operation\"\234\001\202\323\344\223"
+          + "\002T2E/v3/{environment.name=projects/*/loc"
+          + "ations/*/agents/*/environments/*}:\013envir"
+          + "onment\332A\027environment,update_mask\312A%\n\013Env"
+          + "ironment\022\026google.protobuf.Struct\022\256\001\n\021Del"
+          + "eteEnvironment\0227.google.cloud.dialogflow"
+          + ".cx.v3.DeleteEnvironmentRequest\032\026.google"
+          + ".protobuf.Empty\"H\202\323\344\223\002;*9/v3/{name=proje"
+          + "cts/*/locations/*/agents/*/environments/"
+          + "*}\332A\004name\022\376\001\n\030LookupEnvironmentHistory\022>"
+          + ".google.cloud.dialogflow.cx.v3.LookupEnv"
+          + "ironmentHistoryRequest\032?.google.cloud.di"
+          + "alogflow.cx.v3.LookupEnvironmentHistoryR"
+          + "esponse\"a\202\323\344\223\002T\022R/v3/{name=projects/*/lo"
+          + "cations/*/agents/*/environments/*}:looku"
+          + "pEnvironmentHistory\332A\004name\022\204\002\n\021RunContin"
+          + "uousTest\0227.google.cloud.dialogflow.cx.v3"
+          + ".RunContinuousTestRequest\032\035.google.longr"
+          + "unning.Operation\"\226\001\202\323\344\223\002W\"R/v3/{environm"
+          + "ent=projects/*/locations/*/agents/*/envi"
+          + "ronments/*}:runContinuousTest:\001*\312A6\n\031Run"
+          + "ContinuousTestResponse\022\031RunContinuousTes"
+          + "tMetadata\022\202\002\n\031ListContinuousTestResults\022"
+          + "?.google.cloud.dialogflow.cx.v3.ListCont"
+          + "inuousTestResultsRequest\032@.google.cloud."
+          + "dialogflow.cx.v3.ListContinuousTestResul"
+          + "tsResponse\"b\202\323\344\223\002S\022Q/v3/{parent=projects"
+          + "/*/locations/*/agents/*/environments/*}/"
+          + "continuousTestResults\332A\006parent\022\341\001\n\nDeplo"
+          + "yFlow\0220.google.cloud.dialogflow.cx.v3.De"
+          + "ployFlowRequest\032\035.google.longrunning.Ope"
+          + "ration\"\201\001\202\323\344\223\002P\"K/v3/{environment=projec"
+          + "ts/*/locations/*/agents/*/environments/*"
+          + "}:deployFlow:\001*\312A(\n\022DeployFlowResponse\022\022"
+          + "DeployFlowMetadata\032x\312A\031dialogflow.google"
+          + "apis.com\322AYhttps://www.googleapis.com/au"
+          + "th/cloud-platform,https://www.googleapis"
+          + ".com/auth/dialogflowB\266\001\n!com.google.clou"
+          + "d.dialogflow.cx.v3B\020EnvironmentProtoP\001Z1"
+          + "cloud.google.com/go/dialogflow/cx/apiv3/"
+          + "cxpb;cxpb\370\001\001\242\002\002DF\252\002\035Google.Cloud.Dialogf"
+          + "low.Cx.V3\352\002!Google::Cloud::Dialogflow::C"
+          + "X::V3b\006proto3"
     };
     descriptor =
         com.google.protobuf.Descriptors.FileDescriptor.internalBuildGeneratedFileFrom(
@@ -288,6 +289,7 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
               com.google.longrunning.OperationsProto.getDescriptor(),
               com.google.protobuf.EmptyProto.getDescriptor(),
               com.google.protobuf.FieldMaskProto.getDescriptor(),
+              com.google.protobuf.StructProto.getDescriptor(),
               com.google.protobuf.TimestampProto.getDescriptor(),
             });
     internal_static_google_cloud_dialogflow_cx_v3_Environment_descriptor =
@@ -491,6 +493,7 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
     com.google.longrunning.OperationsProto.getDescriptor();
     com.google.protobuf.EmptyProto.getDescriptor();
     com.google.protobuf.FieldMaskProto.getDescriptor();
+    com.google.protobuf.StructProto.getDescriptor();
     com.google.protobuf.TimestampProto.getDescriptor();
   }
 
diff --git a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/FlowProto.java b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/FlowProto.java
index 25682ad2c640..aef04de4e3e2 100644
--- a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/FlowProto.java
+++ b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/FlowProto.java
@@ -109,135 +109,136 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
           + "loud/dialogflow/cx/v3/validation_message"
           + ".proto\032#google/longrunning/operations.pr"
           + "oto\032\033google/protobuf/empty.proto\032 google"
-          + "/protobuf/field_mask.proto\032\037google/proto"
-          + "buf/timestamp.proto\"\254\003\n\013NluSettings\022H\n\nm"
-          + "odel_type\030\001 \001(\01624.google.cloud.dialogflo"
-          + "w.cx.v3.NluSettings.ModelType\022 \n\030classif"
-          + "ication_threshold\030\003 \001(\002\022Y\n\023model_trainin"
-          + "g_mode\030\004 \001(\0162<.google.cloud.dialogflow.c"
-          + "x.v3.NluSettings.ModelTrainingMode\"Y\n\tMo"
-          + "delType\022\032\n\026MODEL_TYPE_UNSPECIFIED\020\000\022\027\n\023M"
-          + "ODEL_TYPE_STANDARD\020\001\022\027\n\023MODEL_TYPE_ADVAN"
-          + "CED\020\003\"{\n\021ModelTrainingMode\022#\n\037MODEL_TRAI"
-          + "NING_MODE_UNSPECIFIED\020\000\022!\n\035MODEL_TRAININ"
-          + "G_MODE_AUTOMATIC\020\001\022\036\n\032MODEL_TRAINING_MOD"
-          + "E_MANUAL\020\002\"\326\003\n\004Flow\022\014\n\004name\030\001 \001(\t\022\031\n\014dis"
-          + "play_name\030\002 \001(\tB\003\340A\002\022\023\n\013description\030\003 \001("
-          + "\t\022I\n\021transition_routes\030\004 \003(\0132..google.cl"
-          + "oud.dialogflow.cx.v3.TransitionRoute\022C\n\016"
-          + "event_handlers\030\n \003(\0132+.google.cloud.dial"
-          + "ogflow.cx.v3.EventHandler\022T\n\027transition_"
-          + "route_groups\030\017 \003(\tB3\372A0\n.dialogflow.goog"
-          + "leapis.com/TransitionRouteGroup\022@\n\014nlu_s"
-          + "ettings\030\013 \001(\0132*.google.cloud.dialogflow."
-          + "cx.v3.NluSettings:h\352Ae\n\036dialogflow.googl"
-          + "eapis.com/Flow\022Cprojects/{project}/locat"
-          + "ions/{location}/agents/{agent}/flows/{fl"
-          + "ow}\"\232\001\n\021CreateFlowRequest\0226\n\006parent\030\001 \001("
-          + "\tB&\340A\002\372A \022\036dialogflow.googleapis.com/Flo"
-          + "w\0226\n\004flow\030\002 \001(\0132#.google.cloud.dialogflo"
-          + "w.cx.v3.FlowB\003\340A\002\022\025\n\rlanguage_code\030\003 \001(\t"
-          + "\"X\n\021DeleteFlowRequest\0224\n\004name\030\001 \001(\tB&\340A\002"
-          + "\372A \n\036dialogflow.googleapis.com/Flow\022\r\n\005f"
-          + "orce\030\002 \001(\010\"\210\001\n\020ListFlowsRequest\0226\n\006paren"
-          + "t\030\001 \001(\tB&\340A\002\372A \022\036dialogflow.googleapis.c"
-          + "om/Flow\022\021\n\tpage_size\030\002 \001(\005\022\022\n\npage_token"
-          + "\030\003 \001(\t\022\025\n\rlanguage_code\030\004 \001(\t\"`\n\021ListFlo"
-          + "wsResponse\0222\n\005flows\030\001 \003(\0132#.google.cloud"
-          + ".dialogflow.cx.v3.Flow\022\027\n\017next_page_toke"
-          + "n\030\002 \001(\t\"]\n\016GetFlowRequest\0224\n\004name\030\001 \001(\tB"
-          + "&\340A\002\372A \n\036dialogflow.googleapis.com/Flow\022"
-          + "\025\n\rlanguage_code\030\002 \001(\t\"\223\001\n\021UpdateFlowReq"
-          + "uest\0226\n\004flow\030\001 \001(\0132#.google.cloud.dialog"
-          + "flow.cx.v3.FlowB\003\340A\002\022/\n\013update_mask\030\002 \001("
-          + "\0132\032.google.protobuf.FieldMask\022\025\n\rlanguag"
-          + "e_code\030\003 \001(\t\"H\n\020TrainFlowRequest\0224\n\004name"
-          + "\030\001 \001(\tB&\340A\002\372A \n\036dialogflow.googleapis.co"
-          + "m/Flow\"b\n\023ValidateFlowRequest\0224\n\004name\030\001 "
-          + "\001(\tB&\340A\002\372A \n\036dialogflow.googleapis.com/F"
-          + "low\022\025\n\rlanguage_code\030\002 \001(\t\"}\n\036GetFlowVal"
-          + "idationResultRequest\022D\n\004name\030\001 \001(\tB6\340A\002\372"
-          + "A0\n.dialogflow.googleapis.com/FlowValida"
-          + "tionResult\022\025\n\rlanguage_code\030\002 \001(\t\"\261\002\n\024Fl"
-          + "owValidationResult\022\014\n\004name\030\001 \001(\t\022M\n\023vali"
-          + "dation_messages\030\002 \003(\01320.google.cloud.dia"
-          + "logflow.cx.v3.ValidationMessage\022/\n\013updat"
-          + "e_time\030\003 \001(\0132\032.google.protobuf.Timestamp"
-          + ":\212\001\352A\206\001\n.dialogflow.googleapis.com/FlowV"
-          + "alidationResult\022Tprojects/{project}/loca"
-          + "tions/{location}/agents/{agent}/flows/{f"
-          + "low}/validationResult\"\234\002\n\021ImportFlowRequ"
-          + "est\0226\n\006parent\030\001 \001(\tB&\340A\002\372A \022\036dialogflow."
-          + "googleapis.com/Flow\022\022\n\010flow_uri\030\002 \001(\tH\000\022"
-          + "\026\n\014flow_content\030\003 \001(\014H\000\022T\n\rimport_option"
-          + "\030\004 \001(\0162=.google.cloud.dialogflow.cx.v3.I"
-          + "mportFlowRequest.ImportOption\"E\n\014ImportO"
-          + "ption\022\035\n\031IMPORT_OPTION_UNSPECIFIED\020\000\022\010\n\004"
-          + "KEEP\020\001\022\014\n\010FALLBACK\020\002B\006\n\004flow\"G\n\022ImportFl"
-          + "owResponse\0221\n\004flow\030\001 \001(\tB#\372A \n\036dialogflo"
-          + "w.googleapis.com/Flow\"\207\001\n\021ExportFlowRequ"
-          + "est\0224\n\004name\030\001 \001(\tB&\340A\002\372A \n\036dialogflow.go"
-          + "ogleapis.com/Flow\022\025\n\010flow_uri\030\002 \001(\tB\003\340A\001"
-          + "\022%\n\030include_referenced_flows\030\004 \001(\010B\003\340A\001\""
-          + "H\n\022ExportFlowResponse\022\022\n\010flow_uri\030\001 \001(\tH"
-          + "\000\022\026\n\014flow_content\030\002 \001(\014H\000B\006\n\004flow2\230\020\n\005Fl"
-          + "ows\022\263\001\n\nCreateFlow\0220.google.cloud.dialog"
-          + "flow.cx.v3.CreateFlowRequest\032#.google.cl"
-          + "oud.dialogflow.cx.v3.Flow\"N\202\323\344\223\002:\"2/v3/{"
-          + "parent=projects/*/locations/*/agents/*}/"
-          + "flows:\004flow\332A\013parent,flow\022\231\001\n\nDeleteFlow"
-          + "\0220.google.cloud.dialogflow.cx.v3.DeleteF"
-          + "lowRequest\032\026.google.protobuf.Empty\"A\202\323\344\223"
-          + "\0024*2/v3/{name=projects/*/locations/*/age"
-          + "nts/*/flows/*}\332A\004name\022\263\001\n\tListFlows\022/.go"
-          + "ogle.cloud.dialogflow.cx.v3.ListFlowsReq"
-          + "uest\0320.google.cloud.dialogflow.cx.v3.Lis"
-          + "tFlowsResponse\"C\202\323\344\223\0024\0222/v3/{parent=proj"
-          + "ects/*/locations/*/agents/*}/flows\332A\006par"
-          + "ent\022\240\001\n\007GetFlow\022-.google.cloud.dialogflo"
-          + "w.cx.v3.GetFlowRequest\032#.google.cloud.di"
-          + "alogflow.cx.v3.Flow\"A\202\323\344\223\0024\0222/v3/{name=p"
-          + "rojects/*/locations/*/agents/*/flows/*}\332"
-          + "A\004name\022\275\001\n\nUpdateFlow\0220.google.cloud.dia"
-          + "logflow.cx.v3.UpdateFlowRequest\032#.google"
-          + ".cloud.dialogflow.cx.v3.Flow\"X\202\323\344\223\002?27/v"
-          + "3/{flow.name=projects/*/locations/*/agen"
-          + "ts/*/flows/*}:\004flow\332A\020flow,update_mask\022\331"
-          + "\001\n\tTrainFlow\022/.google.cloud.dialogflow.c"
-          + "x.v3.TrainFlowRequest\032\035.google.longrunni"
-          + "ng.Operation\"|\202\323\344\223\002=\"8/v3/{name=projects"
-          + "/*/locations/*/agents/*/flows/*}:train:\001"
-          + "*\332A\004name\312A/\n\025google.protobuf.Empty\022\026goog"
-          + "le.protobuf.Struct\022\277\001\n\014ValidateFlow\0222.go"
-          + "ogle.cloud.dialogflow.cx.v3.ValidateFlow"
-          + "Request\0323.google.cloud.dialogflow.cx.v3."
-          + "FlowValidationResult\"F\202\323\344\223\002@\";/v3/{name="
-          + "projects/*/locations/*/agents/*/flows/*}"
-          + ":validate:\001*\022\341\001\n\027GetFlowValidationResult"
-          + "\022=.google.cloud.dialogflow.cx.v3.GetFlow"
-          + "ValidationResultRequest\0323.google.cloud.d"
-          + "ialogflow.cx.v3.FlowValidationResult\"R\202\323"
-          + "\344\223\002E\022C/v3/{name=projects/*/locations/*/a"
-          + "gents/*/flows/*/validationResult}\332A\004name"
-          + "\022\322\001\n\nImportFlow\0220.google.cloud.dialogflo"
-          + "w.cx.v3.ImportFlowRequest\032\035.google.longr"
-          + "unning.Operation\"s\202\323\344\223\002>\"9/v3/{parent=pr"
-          + "ojects/*/locations/*/agents/*}/flows:imp"
-          + "ort:\001*\312A,\n\022ImportFlowResponse\022\026google.pr"
-          + "otobuf.Struct\022\322\001\n\nExportFlow\0220.google.cl"
-          + "oud.dialogflow.cx.v3.ExportFlowRequest\032\035"
-          + ".google.longrunning.Operation\"s\202\323\344\223\002>\"9/"
-          + "v3/{name=projects/*/locations/*/agents/*"
-          + "/flows/*}:export:\001*\312A,\n\022ExportFlowRespon"
-          + "se\022\026google.protobuf.Struct\032x\312A\031dialogflo"
-          + "w.googleapis.com\322AYhttps://www.googleapi"
-          + "s.com/auth/cloud-platform,https://www.go"
-          + "ogleapis.com/auth/dialogflowB\257\001\n!com.goo"
-          + "gle.cloud.dialogflow.cx.v3B\tFlowProtoP\001Z"
-          + "1cloud.google.com/go/dialogflow/cx/apiv3"
-          + "/cxpb;cxpb\370\001\001\242\002\002DF\252\002\035Google.Cloud.Dialog"
-          + "flow.Cx.V3\352\002!Google::Cloud::Dialogflow::"
-          + "CX::V3b\006proto3"
+          + "/protobuf/field_mask.proto\032\034google/proto"
+          + "buf/struct.proto\032\037google/protobuf/timest"
+          + "amp.proto\"\254\003\n\013NluSettings\022H\n\nmodel_type\030"
+          + "\001 \001(\01624.google.cloud.dialogflow.cx.v3.Nl"
+          + "uSettings.ModelType\022 \n\030classification_th"
+          + "reshold\030\003 \001(\002\022Y\n\023model_training_mode\030\004 \001"
+          + "(\0162<.google.cloud.dialogflow.cx.v3.NluSe"
+          + "ttings.ModelTrainingMode\"Y\n\tModelType\022\032\n"
+          + "\026MODEL_TYPE_UNSPECIFIED\020\000\022\027\n\023MODEL_TYPE_"
+          + "STANDARD\020\001\022\027\n\023MODEL_TYPE_ADVANCED\020\003\"{\n\021M"
+          + "odelTrainingMode\022#\n\037MODEL_TRAINING_MODE_"
+          + "UNSPECIFIED\020\000\022!\n\035MODEL_TRAINING_MODE_AUT"
+          + "OMATIC\020\001\022\036\n\032MODEL_TRAINING_MODE_MANUAL\020\002"
+          + "\"\326\003\n\004Flow\022\014\n\004name\030\001 \001(\t\022\031\n\014display_name\030"
+          + "\002 \001(\tB\003\340A\002\022\023\n\013description\030\003 \001(\t\022I\n\021trans"
+          + "ition_routes\030\004 \003(\0132..google.cloud.dialog"
+          + "flow.cx.v3.TransitionRoute\022C\n\016event_hand"
+          + "lers\030\n \003(\0132+.google.cloud.dialogflow.cx."
+          + "v3.EventHandler\022T\n\027transition_route_grou"
+          + "ps\030\017 \003(\tB3\372A0\n.dialogflow.googleapis.com"
+          + "/TransitionRouteGroup\022@\n\014nlu_settings\030\013 "
+          + "\001(\0132*.google.cloud.dialogflow.cx.v3.NluS"
+          + "ettings:h\352Ae\n\036dialogflow.googleapis.com/"
+          + "Flow\022Cprojects/{project}/locations/{loca"
+          + "tion}/agents/{agent}/flows/{flow}\"\232\001\n\021Cr"
+          + "eateFlowRequest\0226\n\006parent\030\001 \001(\tB&\340A\002\372A \022"
+          + "\036dialogflow.googleapis.com/Flow\0226\n\004flow\030"
+          + "\002 \001(\0132#.google.cloud.dialogflow.cx.v3.Fl"
+          + "owB\003\340A\002\022\025\n\rlanguage_code\030\003 \001(\t\"X\n\021Delete"
+          + "FlowRequest\0224\n\004name\030\001 \001(\tB&\340A\002\372A \n\036dialo"
+          + "gflow.googleapis.com/Flow\022\r\n\005force\030\002 \001(\010"
+          + "\"\210\001\n\020ListFlowsRequest\0226\n\006parent\030\001 \001(\tB&\340"
+          + "A\002\372A \022\036dialogflow.googleapis.com/Flow\022\021\n"
+          + "\tpage_size\030\002 \001(\005\022\022\n\npage_token\030\003 \001(\t\022\025\n\r"
+          + "language_code\030\004 \001(\t\"`\n\021ListFlowsResponse"
+          + "\0222\n\005flows\030\001 \003(\0132#.google.cloud.dialogflo"
+          + "w.cx.v3.Flow\022\027\n\017next_page_token\030\002 \001(\t\"]\n"
+          + "\016GetFlowRequest\0224\n\004name\030\001 \001(\tB&\340A\002\372A \n\036d"
+          + "ialogflow.googleapis.com/Flow\022\025\n\rlanguag"
+          + "e_code\030\002 \001(\t\"\223\001\n\021UpdateFlowRequest\0226\n\004fl"
+          + "ow\030\001 \001(\0132#.google.cloud.dialogflow.cx.v3"
+          + ".FlowB\003\340A\002\022/\n\013update_mask\030\002 \001(\0132\032.google"
+          + ".protobuf.FieldMask\022\025\n\rlanguage_code\030\003 \001"
+          + "(\t\"H\n\020TrainFlowRequest\0224\n\004name\030\001 \001(\tB&\340A"
+          + "\002\372A \n\036dialogflow.googleapis.com/Flow\"b\n\023"
+          + "ValidateFlowRequest\0224\n\004name\030\001 \001(\tB&\340A\002\372A"
+          + " \n\036dialogflow.googleapis.com/Flow\022\025\n\rlan"
+          + "guage_code\030\002 \001(\t\"}\n\036GetFlowValidationRes"
+          + "ultRequest\022D\n\004name\030\001 \001(\tB6\340A\002\372A0\n.dialog"
+          + "flow.googleapis.com/FlowValidationResult"
+          + "\022\025\n\rlanguage_code\030\002 \001(\t\"\261\002\n\024FlowValidati"
+          + "onResult\022\014\n\004name\030\001 \001(\t\022M\n\023validation_mes"
+          + "sages\030\002 \003(\01320.google.cloud.dialogflow.cx"
+          + ".v3.ValidationMessage\022/\n\013update_time\030\003 \001"
+          + "(\0132\032.google.protobuf.Timestamp:\212\001\352A\206\001\n.d"
+          + "ialogflow.googleapis.com/FlowValidationR"
+          + "esult\022Tprojects/{project}/locations/{loc"
+          + "ation}/agents/{agent}/flows/{flow}/valid"
+          + "ationResult\"\234\002\n\021ImportFlowRequest\0226\n\006par"
+          + "ent\030\001 \001(\tB&\340A\002\372A \022\036dialogflow.googleapis"
+          + ".com/Flow\022\022\n\010flow_uri\030\002 \001(\tH\000\022\026\n\014flow_co"
+          + "ntent\030\003 \001(\014H\000\022T\n\rimport_option\030\004 \001(\0162=.g"
+          + "oogle.cloud.dialogflow.cx.v3.ImportFlowR"
+          + "equest.ImportOption\"E\n\014ImportOption\022\035\n\031I"
+          + "MPORT_OPTION_UNSPECIFIED\020\000\022\010\n\004KEEP\020\001\022\014\n\010"
+          + "FALLBACK\020\002B\006\n\004flow\"G\n\022ImportFlowResponse"
+          + "\0221\n\004flow\030\001 \001(\tB#\372A \n\036dialogflow.googleap"
+          + "is.com/Flow\"\207\001\n\021ExportFlowRequest\0224\n\004nam"
+          + "e\030\001 \001(\tB&\340A\002\372A \n\036dialogflow.googleapis.c"
+          + "om/Flow\022\025\n\010flow_uri\030\002 \001(\tB\003\340A\001\022%\n\030includ"
+          + "e_referenced_flows\030\004 \001(\010B\003\340A\001\"H\n\022ExportF"
+          + "lowResponse\022\022\n\010flow_uri\030\001 \001(\tH\000\022\026\n\014flow_"
+          + "content\030\002 \001(\014H\000B\006\n\004flow2\230\020\n\005Flows\022\263\001\n\nCr"
+          + "eateFlow\0220.google.cloud.dialogflow.cx.v3"
+          + ".CreateFlowRequest\032#.google.cloud.dialog"
+          + "flow.cx.v3.Flow\"N\202\323\344\223\002:\"2/v3/{parent=pro"
+          + "jects/*/locations/*/agents/*}/flows:\004flo"
+          + "w\332A\013parent,flow\022\231\001\n\nDeleteFlow\0220.google."
+          + "cloud.dialogflow.cx.v3.DeleteFlowRequest"
+          + "\032\026.google.protobuf.Empty\"A\202\323\344\223\0024*2/v3/{n"
+          + "ame=projects/*/locations/*/agents/*/flow"
+          + "s/*}\332A\004name\022\263\001\n\tListFlows\022/.google.cloud"
+          + ".dialogflow.cx.v3.ListFlowsRequest\0320.goo"
+          + "gle.cloud.dialogflow.cx.v3.ListFlowsResp"
+          + "onse\"C\202\323\344\223\0024\0222/v3/{parent=projects/*/loc"
+          + "ations/*/agents/*}/flows\332A\006parent\022\240\001\n\007Ge"
+          + "tFlow\022-.google.cloud.dialogflow.cx.v3.Ge"
+          + "tFlowRequest\032#.google.cloud.dialogflow.c"
+          + "x.v3.Flow\"A\202\323\344\223\0024\0222/v3/{name=projects/*/"
+          + "locations/*/agents/*/flows/*}\332A\004name\022\275\001\n"
+          + "\nUpdateFlow\0220.google.cloud.dialogflow.cx"
+          + ".v3.UpdateFlowRequest\032#.google.cloud.dia"
+          + "logflow.cx.v3.Flow\"X\202\323\344\223\002?27/v3/{flow.na"
+          + "me=projects/*/locations/*/agents/*/flows"
+          + "/*}:\004flow\332A\020flow,update_mask\022\331\001\n\tTrainFl"
+          + "ow\022/.google.cloud.dialogflow.cx.v3.Train"
+          + "FlowRequest\032\035.google.longrunning.Operati"
+          + "on\"|\202\323\344\223\002=\"8/v3/{name=projects/*/locatio"
+          + "ns/*/agents/*/flows/*}:train:\001*\332A\004name\312A"
+          + "/\n\025google.protobuf.Empty\022\026google.protobu"
+          + "f.Struct\022\277\001\n\014ValidateFlow\0222.google.cloud"
+          + ".dialogflow.cx.v3.ValidateFlowRequest\0323."
+          + "google.cloud.dialogflow.cx.v3.FlowValida"
+          + "tionResult\"F\202\323\344\223\002@\";/v3/{name=projects/*"
+          + "/locations/*/agents/*/flows/*}:validate:"
+          + "\001*\022\341\001\n\027GetFlowValidationResult\022=.google."
+          + "cloud.dialogflow.cx.v3.GetFlowValidation"
+          + "ResultRequest\0323.google.cloud.dialogflow."
+          + "cx.v3.FlowValidationResult\"R\202\323\344\223\002E\022C/v3/"
+          + "{name=projects/*/locations/*/agents/*/fl"
+          + "ows/*/validationResult}\332A\004name\022\322\001\n\nImpor"
+          + "tFlow\0220.google.cloud.dialogflow.cx.v3.Im"
+          + "portFlowRequest\032\035.google.longrunning.Ope"
+          + "ration\"s\202\323\344\223\002>\"9/v3/{parent=projects/*/l"
+          + "ocations/*/agents/*}/flows:import:\001*\312A,\n"
+          + "\022ImportFlowResponse\022\026google.protobuf.Str"
+          + "uct\022\322\001\n\nExportFlow\0220.google.cloud.dialog"
+          + "flow.cx.v3.ExportFlowRequest\032\035.google.lo"
+          + "ngrunning.Operation\"s\202\323\344\223\002>\"9/v3/{name=p"
+          + "rojects/*/locations/*/agents/*/flows/*}:"
+          + "export:\001*\312A,\n\022ExportFlowResponse\022\026google"
+          + ".protobuf.Struct\032x\312A\031dialogflow.googleap"
+          + "is.com\322AYhttps://www.googleapis.com/auth"
+          + "/cloud-platform,https://www.googleapis.c"
+          + "om/auth/dialogflowB\257\001\n!com.google.cloud."
+          + "dialogflow.cx.v3B\tFlowProtoP\001Z1cloud.goo"
+          + "gle.com/go/dialogflow/cx/apiv3/cxpb;cxpb"
+          + "\370\001\001\242\002\002DF\252\002\035Google.Cloud.Dialogflow.Cx.V3"
+          + "\352\002!Google::Cloud::Dialogflow::CX::V3b\006pr"
+          + "oto3"
     };
     descriptor =
         com.google.protobuf.Descriptors.FileDescriptor.internalBuildGeneratedFileFrom(
@@ -252,6 +253,7 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
               com.google.longrunning.OperationsProto.getDescriptor(),
               com.google.protobuf.EmptyProto.getDescriptor(),
               com.google.protobuf.FieldMaskProto.getDescriptor(),
+              com.google.protobuf.StructProto.getDescriptor(),
               com.google.protobuf.TimestampProto.getDescriptor(),
             });
     internal_static_google_cloud_dialogflow_cx_v3_NluSettings_descriptor =
@@ -409,6 +411,7 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
     com.google.longrunning.OperationsProto.getDescriptor();
     com.google.protobuf.EmptyProto.getDescriptor();
     com.google.protobuf.FieldMaskProto.getDescriptor();
+    com.google.protobuf.StructProto.getDescriptor();
     com.google.protobuf.TimestampProto.getDescriptor();
   }
 
diff --git a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/GcsDestination.java b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/GcsDestination.java
new file mode 100644
index 000000000000..c2df45379f9a
--- /dev/null
+++ b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/GcsDestination.java
@@ -0,0 +1,659 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3/gcs.proto
+
+package com.google.cloud.dialogflow.cx.v3;
+
+/**
+ *
+ *
+ * <pre>
+ * Google Cloud Storage location for a Dialogflow operation that writes or
+ * exports objects (e.g. exported agent or transcripts) outside of Dialogflow.
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3.GcsDestination}
+ */
+public final class GcsDestination extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3.GcsDestination)
+    GcsDestinationOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use GcsDestination.newBuilder() to construct.
+  private GcsDestination(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private GcsDestination() {
+    uri_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new GcsDestination();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3.GcsProto
+        .internal_static_google_cloud_dialogflow_cx_v3_GcsDestination_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3.GcsProto
+        .internal_static_google_cloud_dialogflow_cx_v3_GcsDestination_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3.GcsDestination.class,
+            com.google.cloud.dialogflow.cx.v3.GcsDestination.Builder.class);
+  }
+
+  public static final int URI_FIELD_NUMBER = 1;
+
+  @SuppressWarnings("serial")
+  private volatile java.lang.Object uri_ = "";
+  /**
+   *
+   *
+   * <pre>
+   * Required. The Google Cloud Storage URI for the exported objects. A URI is
+   * of the form:
+   *   gs://bucket/object-name-or-prefix
+   * Whether a full object name, or just a prefix, its usage depends on the
+   * Dialogflow operation.
+   * </pre>
+   *
+   * <code>string uri = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+   *
+   * @return The uri.
+   */
+  @java.lang.Override
+  public java.lang.String getUri() {
+    java.lang.Object ref = uri_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      uri_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The Google Cloud Storage URI for the exported objects. A URI is
+   * of the form:
+   *   gs://bucket/object-name-or-prefix
+   * Whether a full object name, or just a prefix, its usage depends on the
+   * Dialogflow operation.
+   * </pre>
+   *
+   * <code>string uri = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+   *
+   * @return The bytes for uri.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getUriBytes() {
+    java.lang.Object ref = uri_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      uri_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(uri_)) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, uri_);
+    }
+    getUnknownFields().writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(uri_)) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, uri_);
+    }
+    size += getUnknownFields().getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3.GcsDestination)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3.GcsDestination other =
+        (com.google.cloud.dialogflow.cx.v3.GcsDestination) obj;
+
+    if (!getUri().equals(other.getUri())) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + URI_FIELD_NUMBER;
+    hash = (53 * hash) + getUri().hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3.GcsDestination parseFrom(java.nio.ByteBuffer data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3.GcsDestination parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3.GcsDestination parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3.GcsDestination parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3.GcsDestination parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3.GcsDestination parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3.GcsDestination parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3.GcsDestination parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3.GcsDestination parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3.GcsDestination parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3.GcsDestination parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3.GcsDestination parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(com.google.cloud.dialogflow.cx.v3.GcsDestination prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Google Cloud Storage location for a Dialogflow operation that writes or
+   * exports objects (e.g. exported agent or transcripts) outside of Dialogflow.
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3.GcsDestination}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3.GcsDestination)
+      com.google.cloud.dialogflow.cx.v3.GcsDestinationOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3.GcsProto
+          .internal_static_google_cloud_dialogflow_cx_v3_GcsDestination_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3.GcsProto
+          .internal_static_google_cloud_dialogflow_cx_v3_GcsDestination_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3.GcsDestination.class,
+              com.google.cloud.dialogflow.cx.v3.GcsDestination.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3.GcsDestination.newBuilder()
+    private Builder() {}
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      bitField0_ = 0;
+      uri_ = "";
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3.GcsProto
+          .internal_static_google_cloud_dialogflow_cx_v3_GcsDestination_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3.GcsDestination getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3.GcsDestination.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3.GcsDestination build() {
+      com.google.cloud.dialogflow.cx.v3.GcsDestination result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3.GcsDestination buildPartial() {
+      com.google.cloud.dialogflow.cx.v3.GcsDestination result =
+          new com.google.cloud.dialogflow.cx.v3.GcsDestination(this);
+      if (bitField0_ != 0) {
+        buildPartial0(result);
+      }
+      onBuilt();
+      return result;
+    }
+
+    private void buildPartial0(com.google.cloud.dialogflow.cx.v3.GcsDestination result) {
+      int from_bitField0_ = bitField0_;
+      if (((from_bitField0_ & 0x00000001) != 0)) {
+        result.uri_ = uri_;
+      }
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3.GcsDestination) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3.GcsDestination) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3.GcsDestination other) {
+      if (other == com.google.cloud.dialogflow.cx.v3.GcsDestination.getDefaultInstance())
+        return this;
+      if (!other.getUri().isEmpty()) {
+        uri_ = other.uri_;
+        bitField0_ |= 0x00000001;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.getUnknownFields());
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
+      try {
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                uri_ = input.readStringRequireUtf8();
+                bitField0_ |= 0x00000001;
+                break;
+              } // case 10
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        throw e.unwrapIOException();
+      } finally {
+        onChanged();
+      } // finally
+      return this;
+    }
+
+    private int bitField0_;
+
+    private java.lang.Object uri_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Required. The Google Cloud Storage URI for the exported objects. A URI is
+     * of the form:
+     *   gs://bucket/object-name-or-prefix
+     * Whether a full object name, or just a prefix, its usage depends on the
+     * Dialogflow operation.
+     * </pre>
+     *
+     * <code>string uri = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @return The uri.
+     */
+    public java.lang.String getUri() {
+      java.lang.Object ref = uri_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        uri_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The Google Cloud Storage URI for the exported objects. A URI is
+     * of the form:
+     *   gs://bucket/object-name-or-prefix
+     * Whether a full object name, or just a prefix, its usage depends on the
+     * Dialogflow operation.
+     * </pre>
+     *
+     * <code>string uri = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @return The bytes for uri.
+     */
+    public com.google.protobuf.ByteString getUriBytes() {
+      java.lang.Object ref = uri_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        uri_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The Google Cloud Storage URI for the exported objects. A URI is
+     * of the form:
+     *   gs://bucket/object-name-or-prefix
+     * Whether a full object name, or just a prefix, its usage depends on the
+     * Dialogflow operation.
+     * </pre>
+     *
+     * <code>string uri = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @param value The uri to set.
+     * @return This builder for chaining.
+     */
+    public Builder setUri(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      uri_ = value;
+      bitField0_ |= 0x00000001;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The Google Cloud Storage URI for the exported objects. A URI is
+     * of the form:
+     *   gs://bucket/object-name-or-prefix
+     * Whether a full object name, or just a prefix, its usage depends on the
+     * Dialogflow operation.
+     * </pre>
+     *
+     * <code>string uri = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearUri() {
+      uri_ = getDefaultInstance().getUri();
+      bitField0_ = (bitField0_ & ~0x00000001);
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The Google Cloud Storage URI for the exported objects. A URI is
+     * of the form:
+     *   gs://bucket/object-name-or-prefix
+     * Whether a full object name, or just a prefix, its usage depends on the
+     * Dialogflow operation.
+     * </pre>
+     *
+     * <code>string uri = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @param value The bytes for uri to set.
+     * @return This builder for chaining.
+     */
+    public Builder setUriBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+      uri_ = value;
+      bitField0_ |= 0x00000001;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3.GcsDestination)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3.GcsDestination)
+  private static final com.google.cloud.dialogflow.cx.v3.GcsDestination DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3.GcsDestination();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3.GcsDestination getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<GcsDestination> PARSER =
+      new com.google.protobuf.AbstractParser<GcsDestination>() {
+        @java.lang.Override
+        public GcsDestination parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
+        }
+      };
+
+  public static com.google.protobuf.Parser<GcsDestination> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<GcsDestination> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3.GcsDestination getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/GcsDestinationOrBuilder.java b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/GcsDestinationOrBuilder.java
new file mode 100644
index 000000000000..b70921341d07
--- /dev/null
+++ b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/GcsDestinationOrBuilder.java
@@ -0,0 +1,58 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3/gcs.proto
+
+package com.google.cloud.dialogflow.cx.v3;
+
+public interface GcsDestinationOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3.GcsDestination)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The Google Cloud Storage URI for the exported objects. A URI is
+   * of the form:
+   *   gs://bucket/object-name-or-prefix
+   * Whether a full object name, or just a prefix, its usage depends on the
+   * Dialogflow operation.
+   * </pre>
+   *
+   * <code>string uri = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+   *
+   * @return The uri.
+   */
+  java.lang.String getUri();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The Google Cloud Storage URI for the exported objects. A URI is
+   * of the form:
+   *   gs://bucket/object-name-or-prefix
+   * Whether a full object name, or just a prefix, its usage depends on the
+   * Dialogflow operation.
+   * </pre>
+   *
+   * <code>string uri = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+   *
+   * @return The bytes for uri.
+   */
+  com.google.protobuf.ByteString getUriBytes();
+}
diff --git a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/GcsProto.java b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/GcsProto.java
new file mode 100644
index 000000000000..8e752200d705
--- /dev/null
+++ b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/GcsProto.java
@@ -0,0 +1,76 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3/gcs.proto
+
+package com.google.cloud.dialogflow.cx.v3;
+
+public final class GcsProto {
+  private GcsProto() {}
+
+  public static void registerAllExtensions(com.google.protobuf.ExtensionRegistryLite registry) {}
+
+  public static void registerAllExtensions(com.google.protobuf.ExtensionRegistry registry) {
+    registerAllExtensions((com.google.protobuf.ExtensionRegistryLite) registry);
+  }
+
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3_GcsDestination_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3_GcsDestination_fieldAccessorTable;
+
+  public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
+    return descriptor;
+  }
+
+  private static com.google.protobuf.Descriptors.FileDescriptor descriptor;
+
+  static {
+    java.lang.String[] descriptorData = {
+      "\n\'google/cloud/dialogflow/cx/v3/gcs.prot"
+          + "o\022\035google.cloud.dialogflow.cx.v3\032\037google"
+          + "/api/field_behavior.proto\"\"\n\016GcsDestinat"
+          + "ion\022\020\n\003uri\030\001 \001(\tB\003\340A\002B\256\001\n!com.google.clo"
+          + "ud.dialogflow.cx.v3B\010GcsProtoP\001Z1cloud.g"
+          + "oogle.com/go/dialogflow/cx/apiv3/cxpb;cx"
+          + "pb\370\001\001\242\002\002DF\252\002\035Google.Cloud.Dialogflow.Cx."
+          + "V3\352\002!Google::Cloud::Dialogflow::CX::V3b\006"
+          + "proto3"
+    };
+    descriptor =
+        com.google.protobuf.Descriptors.FileDescriptor.internalBuildGeneratedFileFrom(
+            descriptorData,
+            new com.google.protobuf.Descriptors.FileDescriptor[] {
+              com.google.api.FieldBehaviorProto.getDescriptor(),
+            });
+    internal_static_google_cloud_dialogflow_cx_v3_GcsDestination_descriptor =
+        getDescriptor().getMessageTypes().get(0);
+    internal_static_google_cloud_dialogflow_cx_v3_GcsDestination_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3_GcsDestination_descriptor,
+            new java.lang.String[] {
+              "Uri",
+            });
+    com.google.protobuf.ExtensionRegistry registry =
+        com.google.protobuf.ExtensionRegistry.newInstance();
+    registry.add(com.google.api.FieldBehaviorProto.fieldBehavior);
+    com.google.protobuf.Descriptors.FileDescriptor.internalUpdateFileDescriptor(
+        descriptor, registry);
+    com.google.api.FieldBehaviorProto.getDescriptor();
+  }
+
+  // @@protoc_insertion_point(outer_class_scope)
+}
diff --git a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/MatchIntentRequest.java b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/MatchIntentRequest.java
index 26a1edebb929..5ba0be3238e6 100644
--- a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/MatchIntentRequest.java
+++ b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/MatchIntentRequest.java
@@ -248,6 +248,24 @@ public com.google.cloud.dialogflow.cx.v3.QueryInputOrBuilder getQueryInputOrBuil
         : queryInput_;
   }
 
+  public static final int PERSIST_PARAMETER_CHANGES_FIELD_NUMBER = 5;
+  private boolean persistParameterChanges_ = false;
+  /**
+   *
+   *
+   * <pre>
+   * Persist session parameter changes from `query_params`.
+   * </pre>
+   *
+   * <code>bool persist_parameter_changes = 5;</code>
+   *
+   * @return The persistParameterChanges.
+   */
+  @java.lang.Override
+  public boolean getPersistParameterChanges() {
+    return persistParameterChanges_;
+  }
+
   private byte memoizedIsInitialized = -1;
 
   @java.lang.Override
@@ -271,6 +289,9 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (queryInput_ != null) {
       output.writeMessage(3, getQueryInput());
     }
+    if (persistParameterChanges_ != false) {
+      output.writeBool(5, persistParameterChanges_);
+    }
     getUnknownFields().writeTo(output);
   }
 
@@ -289,6 +310,9 @@ public int getSerializedSize() {
     if (queryInput_ != null) {
       size += com.google.protobuf.CodedOutputStream.computeMessageSize(3, getQueryInput());
     }
+    if (persistParameterChanges_ != false) {
+      size += com.google.protobuf.CodedOutputStream.computeBoolSize(5, persistParameterChanges_);
+    }
     size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
@@ -314,6 +338,7 @@ public boolean equals(final java.lang.Object obj) {
     if (hasQueryInput()) {
       if (!getQueryInput().equals(other.getQueryInput())) return false;
     }
+    if (getPersistParameterChanges() != other.getPersistParameterChanges()) return false;
     if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
@@ -335,6 +360,8 @@ public int hashCode() {
       hash = (37 * hash) + QUERY_INPUT_FIELD_NUMBER;
       hash = (53 * hash) + getQueryInput().hashCode();
     }
+    hash = (37 * hash) + PERSIST_PARAMETER_CHANGES_FIELD_NUMBER;
+    hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getPersistParameterChanges());
     hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
@@ -485,6 +512,7 @@ public Builder clear() {
         queryInputBuilder_.dispose();
         queryInputBuilder_ = null;
       }
+      persistParameterChanges_ = false;
       return this;
     }
 
@@ -531,6 +559,9 @@ private void buildPartial0(com.google.cloud.dialogflow.cx.v3.MatchIntentRequest
       if (((from_bitField0_ & 0x00000004) != 0)) {
         result.queryInput_ = queryInputBuilder_ == null ? queryInput_ : queryInputBuilder_.build();
       }
+      if (((from_bitField0_ & 0x00000008) != 0)) {
+        result.persistParameterChanges_ = persistParameterChanges_;
+      }
     }
 
     @java.lang.Override
@@ -590,6 +621,9 @@ public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3.MatchIntentRequest ot
       if (other.hasQueryInput()) {
         mergeQueryInput(other.getQueryInput());
       }
+      if (other.getPersistParameterChanges() != false) {
+        setPersistParameterChanges(other.getPersistParameterChanges());
+      }
       this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
@@ -634,6 +668,12 @@ public Builder mergeFrom(
                 bitField0_ |= 0x00000004;
                 break;
               } // case 26
+            case 40:
+              {
+                persistParameterChanges_ = input.readBool();
+                bitField0_ |= 0x00000008;
+                break;
+              } // case 40
             default:
               {
                 if (!super.parseUnknownField(input, extensionRegistry, tag)) {
@@ -1206,6 +1246,59 @@ public com.google.cloud.dialogflow.cx.v3.QueryInputOrBuilder getQueryInputOrBuil
       return queryInputBuilder_;
     }
 
+    private boolean persistParameterChanges_;
+    /**
+     *
+     *
+     * <pre>
+     * Persist session parameter changes from `query_params`.
+     * </pre>
+     *
+     * <code>bool persist_parameter_changes = 5;</code>
+     *
+     * @return The persistParameterChanges.
+     */
+    @java.lang.Override
+    public boolean getPersistParameterChanges() {
+      return persistParameterChanges_;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Persist session parameter changes from `query_params`.
+     * </pre>
+     *
+     * <code>bool persist_parameter_changes = 5;</code>
+     *
+     * @param value The persistParameterChanges to set.
+     * @return This builder for chaining.
+     */
+    public Builder setPersistParameterChanges(boolean value) {
+
+      persistParameterChanges_ = value;
+      bitField0_ |= 0x00000008;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Persist session parameter changes from `query_params`.
+     * </pre>
+     *
+     * <code>bool persist_parameter_changes = 5;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearPersistParameterChanges() {
+      bitField0_ = (bitField0_ & ~0x00000008);
+      persistParameterChanges_ = false;
+      onChanged();
+      return this;
+    }
+
     @java.lang.Override
     public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
       return super.setUnknownFields(unknownFields);
diff --git a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/MatchIntentRequestOrBuilder.java b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/MatchIntentRequestOrBuilder.java
index 5e328e86d994..f6f2ed38dae3 100644
--- a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/MatchIntentRequestOrBuilder.java
+++ b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/MatchIntentRequestOrBuilder.java
@@ -147,4 +147,17 @@ public interface MatchIntentRequestOrBuilder
    * </code>
    */
   com.google.cloud.dialogflow.cx.v3.QueryInputOrBuilder getQueryInputOrBuilder();
+
+  /**
+   *
+   *
+   * <pre>
+   * Persist session parameter changes from `query_params`.
+   * </pre>
+   *
+   * <code>bool persist_parameter_changes = 5;</code>
+   *
+   * @return The persistParameterChanges.
+   */
+  boolean getPersistParameterChanges();
 }
diff --git a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/SessionProto.java b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/SessionProto.java
index ae6b78e1ee29..34a447147449 100644
--- a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/SessionProto.java
+++ b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/SessionProto.java
@@ -232,73 +232,74 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
           + "idence\030\005 \001(\002\"\204\001\n\tMatchType\022\032\n\026MATCH_TYPE"
           + "_UNSPECIFIED\020\000\022\n\n\006INTENT\020\001\022\021\n\rDIRECT_INT"
           + "ENT\020\002\022\025\n\021PARAMETER_FILLING\020\003\022\014\n\010NO_MATCH"
-          + "\020\004\022\014\n\010NO_INPUT\020\005\022\t\n\005EVENT\020\006\"\333\001\n\022MatchInt"
+          + "\020\004\022\014\n\010NO_INPUT\020\005\022\t\n\005EVENT\020\006\"\376\001\n\022MatchInt"
           + "entRequest\022:\n\007session\030\001 \001(\tB)\340A\002\372A#\n!dia"
           + "logflow.googleapis.com/Session\022D\n\014query_"
           + "params\030\002 \001(\0132..google.cloud.dialogflow.c"
           + "x.v3.QueryParameters\022C\n\013query_input\030\003 \001("
           + "\0132).google.cloud.dialogflow.cx.v3.QueryI"
-          + "nputB\003\340A\002\"\220\002\n\023MatchIntentResponse\022\016\n\004tex"
-          + "t\030\001 \001(\tH\000\022?\n\016trigger_intent\030\002 \001(\tB%\372A\"\n "
-          + "dialogflow.googleapis.com/IntentH\000\022\024\n\ntr"
-          + "anscript\030\003 \001(\tH\000\022\027\n\rtrigger_event\030\006 \001(\tH"
-          + "\000\0225\n\007matches\030\004 \003(\0132$.google.cloud.dialog"
-          + "flow.cx.v3.Match\0229\n\014current_page\030\005 \001(\0132#"
-          + ".google.cloud.dialogflow.cx.v3.PageB\007\n\005q"
-          + "uery\"\353\001\n\024FulfillIntentRequest\022O\n\024match_i"
-          + "ntent_request\030\001 \001(\01321.google.cloud.dialo"
-          + "gflow.cx.v3.MatchIntentRequest\0223\n\005match\030"
-          + "\002 \001(\0132$.google.cloud.dialogflow.cx.v3.Ma"
-          + "tch\022M\n\023output_audio_config\030\003 \001(\01320.googl"
-          + "e.cloud.dialogflow.cx.v3.OutputAudioConf"
-          + "ig\"\323\001\n\025FulfillIntentResponse\022\023\n\013response"
-          + "_id\030\001 \001(\t\022@\n\014query_result\030\002 \001(\0132*.google"
-          + ".cloud.dialogflow.cx.v3.QueryResult\022\024\n\014o"
-          + "utput_audio\030\003 \001(\014\022M\n\023output_audio_config"
-          + "\030\004 \001(\01320.google.cloud.dialogflow.cx.v3.O"
-          + "utputAudioConfig\";\n\027SentimentAnalysisRes"
-          + "ult\022\r\n\005score\030\001 \001(\002\022\021\n\tmagnitude\030\002 \001(\0022\304\t"
-          + "\n\010Sessions\022\246\002\n\014DetectIntent\0222.google.clo"
-          + "ud.dialogflow.cx.v3.DetectIntentRequest\032"
-          + "3.google.cloud.dialogflow.cx.v3.DetectIn"
-          + "tentResponse\"\254\001\202\323\344\223\002\245\001\"E/v3/{session=pro"
-          + "jects/*/locations/*/agents/*/sessions/*}"
-          + ":detectIntent:\001*ZY\"T/v3/{session=project"
-          + "s/*/locations/*/agents/*/environments/*/"
-          + "sessions/*}:detectIntent:\001*\022\230\001\n\025Streamin"
-          + "gDetectIntent\022;.google.cloud.dialogflow."
-          + "cx.v3.StreamingDetectIntentRequest\032<.goo"
-          + "gle.cloud.dialogflow.cx.v3.StreamingDete"
-          + "ctIntentResponse\"\000(\0010\001\022\241\002\n\013MatchIntent\0221"
-          + ".google.cloud.dialogflow.cx.v3.MatchInte"
-          + "ntRequest\0322.google.cloud.dialogflow.cx.v"
-          + "3.MatchIntentResponse\"\252\001\202\323\344\223\002\243\001\"D/v3/{se"
-          + "ssion=projects/*/locations/*/agents/*/se"
-          + "ssions/*}:matchIntent:\001*ZX\"S/v3/{session"
-          + "=projects/*/locations/*/agents/*/environ"
-          + "ments/*/sessions/*}:matchIntent:\001*\022\325\002\n\rF"
-          + "ulfillIntent\0223.google.cloud.dialogflow.c"
-          + "x.v3.FulfillIntentRequest\0324.google.cloud"
-          + ".dialogflow.cx.v3.FulfillIntentResponse\""
-          + "\330\001\202\323\344\223\002\321\001\"[/v3/{match_intent_request.ses"
-          + "sion=projects/*/locations/*/agents/*/ses"
-          + "sions/*}:fulfillIntent:\001*Zo\"j/v3/{match_"
-          + "intent_request.session=projects/*/locati"
-          + "ons/*/agents/*/environments/*/sessions/*"
-          + "}:fulfillIntent:\001*\032x\312A\031dialogflow.google"
-          + "apis.com\322AYhttps://www.googleapis.com/au"
-          + "th/cloud-platform,https://www.googleapis"
-          + ".com/auth/dialogflowB\212\003\n!com.google.clou"
-          + "d.dialogflow.cx.v3B\014SessionProtoP\001Z1clou"
-          + "d.google.com/go/dialogflow/cx/apiv3/cxpb"
-          + ";cxpb\370\001\001\242\002\002DF\252\002\035Google.Cloud.Dialogflow."
-          + "Cx.V3\352\002!Google::Cloud::Dialogflow::CX::V"
-          + "3\352A\324\001\n!dialogflow.googleapis.com/Session"
-          + "\022Iprojects/{project}/locations/{location"
-          + "}/agents/{agent}/sessions/{session}\022dpro"
+          + "nputB\003\340A\002\022!\n\031persist_parameter_changes\030\005"
+          + " \001(\010\"\220\002\n\023MatchIntentResponse\022\016\n\004text\030\001 \001"
+          + "(\tH\000\022?\n\016trigger_intent\030\002 \001(\tB%\372A\"\n dialo"
+          + "gflow.googleapis.com/IntentH\000\022\024\n\ntranscr"
+          + "ipt\030\003 \001(\tH\000\022\027\n\rtrigger_event\030\006 \001(\tH\000\0225\n\007"
+          + "matches\030\004 \003(\0132$.google.cloud.dialogflow."
+          + "cx.v3.Match\0229\n\014current_page\030\005 \001(\0132#.goog"
+          + "le.cloud.dialogflow.cx.v3.PageB\007\n\005query\""
+          + "\353\001\n\024FulfillIntentRequest\022O\n\024match_intent"
+          + "_request\030\001 \001(\01321.google.cloud.dialogflow"
+          + ".cx.v3.MatchIntentRequest\0223\n\005match\030\002 \001(\013"
+          + "2$.google.cloud.dialogflow.cx.v3.Match\022M"
+          + "\n\023output_audio_config\030\003 \001(\01320.google.clo"
+          + "ud.dialogflow.cx.v3.OutputAudioConfig\"\323\001"
+          + "\n\025FulfillIntentResponse\022\023\n\013response_id\030\001"
+          + " \001(\t\022@\n\014query_result\030\002 \001(\0132*.google.clou"
+          + "d.dialogflow.cx.v3.QueryResult\022\024\n\014output"
+          + "_audio\030\003 \001(\014\022M\n\023output_audio_config\030\004 \001("
+          + "\01320.google.cloud.dialogflow.cx.v3.Output"
+          + "AudioConfig\";\n\027SentimentAnalysisResult\022\r"
+          + "\n\005score\030\001 \001(\002\022\021\n\tmagnitude\030\002 \001(\0022\304\t\n\010Ses"
+          + "sions\022\246\002\n\014DetectIntent\0222.google.cloud.di"
+          + "alogflow.cx.v3.DetectIntentRequest\0323.goo"
+          + "gle.cloud.dialogflow.cx.v3.DetectIntentR"
+          + "esponse\"\254\001\202\323\344\223\002\245\001\"E/v3/{session=projects"
+          + "/*/locations/*/agents/*/sessions/*}:dete"
+          + "ctIntent:\001*ZY\"T/v3/{session=projects/*/l"
+          + "ocations/*/agents/*/environments/*/sessi"
+          + "ons/*}:detectIntent:\001*\022\230\001\n\025StreamingDete"
+          + "ctIntent\022;.google.cloud.dialogflow.cx.v3"
+          + ".StreamingDetectIntentRequest\032<.google.c"
+          + "loud.dialogflow.cx.v3.StreamingDetectInt"
+          + "entResponse\"\000(\0010\001\022\241\002\n\013MatchIntent\0221.goog"
+          + "le.cloud.dialogflow.cx.v3.MatchIntentReq"
+          + "uest\0322.google.cloud.dialogflow.cx.v3.Mat"
+          + "chIntentResponse\"\252\001\202\323\344\223\002\243\001\"D/v3/{session"
+          + "=projects/*/locations/*/agents/*/session"
+          + "s/*}:matchIntent:\001*ZX\"S/v3/{session=proj"
+          + "ects/*/locations/*/agents/*/environments"
+          + "/*/sessions/*}:matchIntent:\001*\022\325\002\n\rFulfil"
+          + "lIntent\0223.google.cloud.dialogflow.cx.v3."
+          + "FulfillIntentRequest\0324.google.cloud.dial"
+          + "ogflow.cx.v3.FulfillIntentResponse\"\330\001\202\323\344"
+          + "\223\002\321\001\"[/v3/{match_intent_request.session="
+          + "projects/*/locations/*/agents/*/sessions"
+          + "/*}:fulfillIntent:\001*Zo\"j/v3/{match_inten"
+          + "t_request.session=projects/*/locations/*"
+          + "/agents/*/environments/*/sessions/*}:ful"
+          + "fillIntent:\001*\032x\312A\031dialogflow.googleapis."
+          + "com\322AYhttps://www.googleapis.com/auth/cl"
+          + "oud-platform,https://www.googleapis.com/"
+          + "auth/dialogflowB\212\003\n!com.google.cloud.dia"
+          + "logflow.cx.v3B\014SessionProtoP\001Z1cloud.goo"
+          + "gle.com/go/dialogflow/cx/apiv3/cxpb;cxpb"
+          + "\370\001\001\242\002\002DF\252\002\035Google.Cloud.Dialogflow.Cx.V3"
+          + "\352\002!Google::Cloud::Dialogflow::CX::V3\352A\324\001"
+          + "\n!dialogflow.googleapis.com/Session\022Ipro"
           + "jects/{project}/locations/{location}/age"
-          + "nts/{agent}/environments/{environment}/s"
-          + "essions/{session}b\006proto3"
+          + "nts/{agent}/sessions/{session}\022dprojects"
+          + "/{project}/locations/{location}/agents/{"
+          + "agent}/environments/{environment}/sessio"
+          + "ns/{session}b\006proto3"
     };
     descriptor =
         com.google.protobuf.Descriptors.FileDescriptor.internalBuildGeneratedFileFrom(
@@ -484,7 +485,7 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
         new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
             internal_static_google_cloud_dialogflow_cx_v3_MatchIntentRequest_descriptor,
             new java.lang.String[] {
-              "Session", "QueryParams", "QueryInput",
+              "Session", "QueryParams", "QueryInput", "PersistParameterChanges",
             });
     internal_static_google_cloud_dialogflow_cx_v3_MatchIntentResponse_descriptor =
         getDescriptor().getMessageTypes().get(15);
diff --git a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/TextToSpeechSettings.java b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/TextToSpeechSettings.java
new file mode 100644
index 000000000000..8270356cc0cd
--- /dev/null
+++ b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/TextToSpeechSettings.java
@@ -0,0 +1,869 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3/audio_config.proto
+
+package com.google.cloud.dialogflow.cx.v3;
+
+/**
+ *
+ *
+ * <pre>
+ * Settings related to speech generating.
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3.TextToSpeechSettings}
+ */
+public final class TextToSpeechSettings extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3.TextToSpeechSettings)
+    TextToSpeechSettingsOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use TextToSpeechSettings.newBuilder() to construct.
+  private TextToSpeechSettings(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private TextToSpeechSettings() {}
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new TextToSpeechSettings();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3.AudioConfigProto
+        .internal_static_google_cloud_dialogflow_cx_v3_TextToSpeechSettings_descriptor;
+  }
+
+  @SuppressWarnings({"rawtypes"})
+  @java.lang.Override
+  protected com.google.protobuf.MapField internalGetMapField(int number) {
+    switch (number) {
+      case 1:
+        return internalGetSynthesizeSpeechConfigs();
+      default:
+        throw new RuntimeException("Invalid map field number: " + number);
+    }
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3.AudioConfigProto
+        .internal_static_google_cloud_dialogflow_cx_v3_TextToSpeechSettings_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3.TextToSpeechSettings.class,
+            com.google.cloud.dialogflow.cx.v3.TextToSpeechSettings.Builder.class);
+  }
+
+  public static final int SYNTHESIZE_SPEECH_CONFIGS_FIELD_NUMBER = 1;
+
+  private static final class SynthesizeSpeechConfigsDefaultEntryHolder {
+    static final com.google.protobuf.MapEntry<
+            java.lang.String, com.google.cloud.dialogflow.cx.v3.SynthesizeSpeechConfig>
+        defaultEntry =
+            com.google.protobuf.MapEntry
+                .<java.lang.String, com.google.cloud.dialogflow.cx.v3.SynthesizeSpeechConfig>
+                    newDefaultInstance(
+                        com.google.cloud.dialogflow.cx.v3.AudioConfigProto
+                            .internal_static_google_cloud_dialogflow_cx_v3_TextToSpeechSettings_SynthesizeSpeechConfigsEntry_descriptor,
+                        com.google.protobuf.WireFormat.FieldType.STRING,
+                        "",
+                        com.google.protobuf.WireFormat.FieldType.MESSAGE,
+                        com.google.cloud.dialogflow.cx.v3.SynthesizeSpeechConfig
+                            .getDefaultInstance());
+  }
+
+  @SuppressWarnings("serial")
+  private com.google.protobuf.MapField<
+          java.lang.String, com.google.cloud.dialogflow.cx.v3.SynthesizeSpeechConfig>
+      synthesizeSpeechConfigs_;
+
+  private com.google.protobuf.MapField<
+          java.lang.String, com.google.cloud.dialogflow.cx.v3.SynthesizeSpeechConfig>
+      internalGetSynthesizeSpeechConfigs() {
+    if (synthesizeSpeechConfigs_ == null) {
+      return com.google.protobuf.MapField.emptyMapField(
+          SynthesizeSpeechConfigsDefaultEntryHolder.defaultEntry);
+    }
+    return synthesizeSpeechConfigs_;
+  }
+
+  public int getSynthesizeSpeechConfigsCount() {
+    return internalGetSynthesizeSpeechConfigs().getMap().size();
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Configuration of how speech should be synthesized, mapping from
+   * language (https://dialogflow.com/docs/reference/language) to
+   * SynthesizeSpeechConfig.
+   * </pre>
+   *
+   * <code>
+   * map&lt;string, .google.cloud.dialogflow.cx.v3.SynthesizeSpeechConfig&gt; synthesize_speech_configs = 1;
+   * </code>
+   */
+  @java.lang.Override
+  public boolean containsSynthesizeSpeechConfigs(java.lang.String key) {
+    if (key == null) {
+      throw new NullPointerException("map key");
+    }
+    return internalGetSynthesizeSpeechConfigs().getMap().containsKey(key);
+  }
+  /** Use {@link #getSynthesizeSpeechConfigsMap()} instead. */
+  @java.lang.Override
+  @java.lang.Deprecated
+  public java.util.Map<java.lang.String, com.google.cloud.dialogflow.cx.v3.SynthesizeSpeechConfig>
+      getSynthesizeSpeechConfigs() {
+    return getSynthesizeSpeechConfigsMap();
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Configuration of how speech should be synthesized, mapping from
+   * language (https://dialogflow.com/docs/reference/language) to
+   * SynthesizeSpeechConfig.
+   * </pre>
+   *
+   * <code>
+   * map&lt;string, .google.cloud.dialogflow.cx.v3.SynthesizeSpeechConfig&gt; synthesize_speech_configs = 1;
+   * </code>
+   */
+  @java.lang.Override
+  public java.util.Map<java.lang.String, com.google.cloud.dialogflow.cx.v3.SynthesizeSpeechConfig>
+      getSynthesizeSpeechConfigsMap() {
+    return internalGetSynthesizeSpeechConfigs().getMap();
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Configuration of how speech should be synthesized, mapping from
+   * language (https://dialogflow.com/docs/reference/language) to
+   * SynthesizeSpeechConfig.
+   * </pre>
+   *
+   * <code>
+   * map&lt;string, .google.cloud.dialogflow.cx.v3.SynthesizeSpeechConfig&gt; synthesize_speech_configs = 1;
+   * </code>
+   */
+  @java.lang.Override
+  public /* nullable */ com.google.cloud.dialogflow.cx.v3.SynthesizeSpeechConfig
+      getSynthesizeSpeechConfigsOrDefault(
+          java.lang.String key,
+          /* nullable */
+          com.google.cloud.dialogflow.cx.v3.SynthesizeSpeechConfig defaultValue) {
+    if (key == null) {
+      throw new NullPointerException("map key");
+    }
+    java.util.Map<java.lang.String, com.google.cloud.dialogflow.cx.v3.SynthesizeSpeechConfig> map =
+        internalGetSynthesizeSpeechConfigs().getMap();
+    return map.containsKey(key) ? map.get(key) : defaultValue;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Configuration of how speech should be synthesized, mapping from
+   * language (https://dialogflow.com/docs/reference/language) to
+   * SynthesizeSpeechConfig.
+   * </pre>
+   *
+   * <code>
+   * map&lt;string, .google.cloud.dialogflow.cx.v3.SynthesizeSpeechConfig&gt; synthesize_speech_configs = 1;
+   * </code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3.SynthesizeSpeechConfig getSynthesizeSpeechConfigsOrThrow(
+      java.lang.String key) {
+    if (key == null) {
+      throw new NullPointerException("map key");
+    }
+    java.util.Map<java.lang.String, com.google.cloud.dialogflow.cx.v3.SynthesizeSpeechConfig> map =
+        internalGetSynthesizeSpeechConfigs().getMap();
+    if (!map.containsKey(key)) {
+      throw new java.lang.IllegalArgumentException();
+    }
+    return map.get(key);
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    com.google.protobuf.GeneratedMessageV3.serializeStringMapTo(
+        output,
+        internalGetSynthesizeSpeechConfigs(),
+        SynthesizeSpeechConfigsDefaultEntryHolder.defaultEntry,
+        1);
+    getUnknownFields().writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    for (java.util.Map.Entry<
+            java.lang.String, com.google.cloud.dialogflow.cx.v3.SynthesizeSpeechConfig>
+        entry : internalGetSynthesizeSpeechConfigs().getMap().entrySet()) {
+      com.google.protobuf.MapEntry<
+              java.lang.String, com.google.cloud.dialogflow.cx.v3.SynthesizeSpeechConfig>
+          synthesizeSpeechConfigs__ =
+              SynthesizeSpeechConfigsDefaultEntryHolder.defaultEntry
+                  .newBuilderForType()
+                  .setKey(entry.getKey())
+                  .setValue(entry.getValue())
+                  .build();
+      size +=
+          com.google.protobuf.CodedOutputStream.computeMessageSize(1, synthesizeSpeechConfigs__);
+    }
+    size += getUnknownFields().getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3.TextToSpeechSettings)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3.TextToSpeechSettings other =
+        (com.google.cloud.dialogflow.cx.v3.TextToSpeechSettings) obj;
+
+    if (!internalGetSynthesizeSpeechConfigs().equals(other.internalGetSynthesizeSpeechConfigs()))
+      return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    if (!internalGetSynthesizeSpeechConfigs().getMap().isEmpty()) {
+      hash = (37 * hash) + SYNTHESIZE_SPEECH_CONFIGS_FIELD_NUMBER;
+      hash = (53 * hash) + internalGetSynthesizeSpeechConfigs().hashCode();
+    }
+    hash = (29 * hash) + getUnknownFields().hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3.TextToSpeechSettings parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3.TextToSpeechSettings parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3.TextToSpeechSettings parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3.TextToSpeechSettings parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3.TextToSpeechSettings parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3.TextToSpeechSettings parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3.TextToSpeechSettings parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3.TextToSpeechSettings parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3.TextToSpeechSettings parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3.TextToSpeechSettings parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3.TextToSpeechSettings parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3.TextToSpeechSettings parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3.TextToSpeechSettings prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Settings related to speech generating.
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3.TextToSpeechSettings}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3.TextToSpeechSettings)
+      com.google.cloud.dialogflow.cx.v3.TextToSpeechSettingsOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3.AudioConfigProto
+          .internal_static_google_cloud_dialogflow_cx_v3_TextToSpeechSettings_descriptor;
+    }
+
+    @SuppressWarnings({"rawtypes"})
+    protected com.google.protobuf.MapField internalGetMapField(int number) {
+      switch (number) {
+        case 1:
+          return internalGetSynthesizeSpeechConfigs();
+        default:
+          throw new RuntimeException("Invalid map field number: " + number);
+      }
+    }
+
+    @SuppressWarnings({"rawtypes"})
+    protected com.google.protobuf.MapField internalGetMutableMapField(int number) {
+      switch (number) {
+        case 1:
+          return internalGetMutableSynthesizeSpeechConfigs();
+        default:
+          throw new RuntimeException("Invalid map field number: " + number);
+      }
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3.AudioConfigProto
+          .internal_static_google_cloud_dialogflow_cx_v3_TextToSpeechSettings_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3.TextToSpeechSettings.class,
+              com.google.cloud.dialogflow.cx.v3.TextToSpeechSettings.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3.TextToSpeechSettings.newBuilder()
+    private Builder() {}
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      bitField0_ = 0;
+      internalGetMutableSynthesizeSpeechConfigs().clear();
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3.AudioConfigProto
+          .internal_static_google_cloud_dialogflow_cx_v3_TextToSpeechSettings_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3.TextToSpeechSettings getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3.TextToSpeechSettings.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3.TextToSpeechSettings build() {
+      com.google.cloud.dialogflow.cx.v3.TextToSpeechSettings result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3.TextToSpeechSettings buildPartial() {
+      com.google.cloud.dialogflow.cx.v3.TextToSpeechSettings result =
+          new com.google.cloud.dialogflow.cx.v3.TextToSpeechSettings(this);
+      if (bitField0_ != 0) {
+        buildPartial0(result);
+      }
+      onBuilt();
+      return result;
+    }
+
+    private void buildPartial0(com.google.cloud.dialogflow.cx.v3.TextToSpeechSettings result) {
+      int from_bitField0_ = bitField0_;
+      if (((from_bitField0_ & 0x00000001) != 0)) {
+        result.synthesizeSpeechConfigs_ = internalGetSynthesizeSpeechConfigs();
+        result.synthesizeSpeechConfigs_.makeImmutable();
+      }
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3.TextToSpeechSettings) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3.TextToSpeechSettings) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3.TextToSpeechSettings other) {
+      if (other == com.google.cloud.dialogflow.cx.v3.TextToSpeechSettings.getDefaultInstance())
+        return this;
+      internalGetMutableSynthesizeSpeechConfigs()
+          .mergeFrom(other.internalGetSynthesizeSpeechConfigs());
+      bitField0_ |= 0x00000001;
+      this.mergeUnknownFields(other.getUnknownFields());
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
+      try {
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                com.google.protobuf.MapEntry<
+                        java.lang.String, com.google.cloud.dialogflow.cx.v3.SynthesizeSpeechConfig>
+                    synthesizeSpeechConfigs__ =
+                        input.readMessage(
+                            SynthesizeSpeechConfigsDefaultEntryHolder.defaultEntry
+                                .getParserForType(),
+                            extensionRegistry);
+                internalGetMutableSynthesizeSpeechConfigs()
+                    .getMutableMap()
+                    .put(synthesizeSpeechConfigs__.getKey(), synthesizeSpeechConfigs__.getValue());
+                bitField0_ |= 0x00000001;
+                break;
+              } // case 10
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        throw e.unwrapIOException();
+      } finally {
+        onChanged();
+      } // finally
+      return this;
+    }
+
+    private int bitField0_;
+
+    private com.google.protobuf.MapField<
+            java.lang.String, com.google.cloud.dialogflow.cx.v3.SynthesizeSpeechConfig>
+        synthesizeSpeechConfigs_;
+
+    private com.google.protobuf.MapField<
+            java.lang.String, com.google.cloud.dialogflow.cx.v3.SynthesizeSpeechConfig>
+        internalGetSynthesizeSpeechConfigs() {
+      if (synthesizeSpeechConfigs_ == null) {
+        return com.google.protobuf.MapField.emptyMapField(
+            SynthesizeSpeechConfigsDefaultEntryHolder.defaultEntry);
+      }
+      return synthesizeSpeechConfigs_;
+    }
+
+    private com.google.protobuf.MapField<
+            java.lang.String, com.google.cloud.dialogflow.cx.v3.SynthesizeSpeechConfig>
+        internalGetMutableSynthesizeSpeechConfigs() {
+      if (synthesizeSpeechConfigs_ == null) {
+        synthesizeSpeechConfigs_ =
+            com.google.protobuf.MapField.newMapField(
+                SynthesizeSpeechConfigsDefaultEntryHolder.defaultEntry);
+      }
+      if (!synthesizeSpeechConfigs_.isMutable()) {
+        synthesizeSpeechConfigs_ = synthesizeSpeechConfigs_.copy();
+      }
+      bitField0_ |= 0x00000001;
+      onChanged();
+      return synthesizeSpeechConfigs_;
+    }
+
+    public int getSynthesizeSpeechConfigsCount() {
+      return internalGetSynthesizeSpeechConfigs().getMap().size();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Configuration of how speech should be synthesized, mapping from
+     * language (https://dialogflow.com/docs/reference/language) to
+     * SynthesizeSpeechConfig.
+     * </pre>
+     *
+     * <code>
+     * map&lt;string, .google.cloud.dialogflow.cx.v3.SynthesizeSpeechConfig&gt; synthesize_speech_configs = 1;
+     * </code>
+     */
+    @java.lang.Override
+    public boolean containsSynthesizeSpeechConfigs(java.lang.String key) {
+      if (key == null) {
+        throw new NullPointerException("map key");
+      }
+      return internalGetSynthesizeSpeechConfigs().getMap().containsKey(key);
+    }
+    /** Use {@link #getSynthesizeSpeechConfigsMap()} instead. */
+    @java.lang.Override
+    @java.lang.Deprecated
+    public java.util.Map<java.lang.String, com.google.cloud.dialogflow.cx.v3.SynthesizeSpeechConfig>
+        getSynthesizeSpeechConfigs() {
+      return getSynthesizeSpeechConfigsMap();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Configuration of how speech should be synthesized, mapping from
+     * language (https://dialogflow.com/docs/reference/language) to
+     * SynthesizeSpeechConfig.
+     * </pre>
+     *
+     * <code>
+     * map&lt;string, .google.cloud.dialogflow.cx.v3.SynthesizeSpeechConfig&gt; synthesize_speech_configs = 1;
+     * </code>
+     */
+    @java.lang.Override
+    public java.util.Map<java.lang.String, com.google.cloud.dialogflow.cx.v3.SynthesizeSpeechConfig>
+        getSynthesizeSpeechConfigsMap() {
+      return internalGetSynthesizeSpeechConfigs().getMap();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Configuration of how speech should be synthesized, mapping from
+     * language (https://dialogflow.com/docs/reference/language) to
+     * SynthesizeSpeechConfig.
+     * </pre>
+     *
+     * <code>
+     * map&lt;string, .google.cloud.dialogflow.cx.v3.SynthesizeSpeechConfig&gt; synthesize_speech_configs = 1;
+     * </code>
+     */
+    @java.lang.Override
+    public /* nullable */ com.google.cloud.dialogflow.cx.v3.SynthesizeSpeechConfig
+        getSynthesizeSpeechConfigsOrDefault(
+            java.lang.String key,
+            /* nullable */
+            com.google.cloud.dialogflow.cx.v3.SynthesizeSpeechConfig defaultValue) {
+      if (key == null) {
+        throw new NullPointerException("map key");
+      }
+      java.util.Map<java.lang.String, com.google.cloud.dialogflow.cx.v3.SynthesizeSpeechConfig>
+          map = internalGetSynthesizeSpeechConfigs().getMap();
+      return map.containsKey(key) ? map.get(key) : defaultValue;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Configuration of how speech should be synthesized, mapping from
+     * language (https://dialogflow.com/docs/reference/language) to
+     * SynthesizeSpeechConfig.
+     * </pre>
+     *
+     * <code>
+     * map&lt;string, .google.cloud.dialogflow.cx.v3.SynthesizeSpeechConfig&gt; synthesize_speech_configs = 1;
+     * </code>
+     */
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3.SynthesizeSpeechConfig
+        getSynthesizeSpeechConfigsOrThrow(java.lang.String key) {
+      if (key == null) {
+        throw new NullPointerException("map key");
+      }
+      java.util.Map<java.lang.String, com.google.cloud.dialogflow.cx.v3.SynthesizeSpeechConfig>
+          map = internalGetSynthesizeSpeechConfigs().getMap();
+      if (!map.containsKey(key)) {
+        throw new java.lang.IllegalArgumentException();
+      }
+      return map.get(key);
+    }
+
+    public Builder clearSynthesizeSpeechConfigs() {
+      bitField0_ = (bitField0_ & ~0x00000001);
+      internalGetMutableSynthesizeSpeechConfigs().getMutableMap().clear();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Configuration of how speech should be synthesized, mapping from
+     * language (https://dialogflow.com/docs/reference/language) to
+     * SynthesizeSpeechConfig.
+     * </pre>
+     *
+     * <code>
+     * map&lt;string, .google.cloud.dialogflow.cx.v3.SynthesizeSpeechConfig&gt; synthesize_speech_configs = 1;
+     * </code>
+     */
+    public Builder removeSynthesizeSpeechConfigs(java.lang.String key) {
+      if (key == null) {
+        throw new NullPointerException("map key");
+      }
+      internalGetMutableSynthesizeSpeechConfigs().getMutableMap().remove(key);
+      return this;
+    }
+    /** Use alternate mutation accessors instead. */
+    @java.lang.Deprecated
+    public java.util.Map<java.lang.String, com.google.cloud.dialogflow.cx.v3.SynthesizeSpeechConfig>
+        getMutableSynthesizeSpeechConfigs() {
+      bitField0_ |= 0x00000001;
+      return internalGetMutableSynthesizeSpeechConfigs().getMutableMap();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Configuration of how speech should be synthesized, mapping from
+     * language (https://dialogflow.com/docs/reference/language) to
+     * SynthesizeSpeechConfig.
+     * </pre>
+     *
+     * <code>
+     * map&lt;string, .google.cloud.dialogflow.cx.v3.SynthesizeSpeechConfig&gt; synthesize_speech_configs = 1;
+     * </code>
+     */
+    public Builder putSynthesizeSpeechConfigs(
+        java.lang.String key, com.google.cloud.dialogflow.cx.v3.SynthesizeSpeechConfig value) {
+      if (key == null) {
+        throw new NullPointerException("map key");
+      }
+      if (value == null) {
+        throw new NullPointerException("map value");
+      }
+      internalGetMutableSynthesizeSpeechConfigs().getMutableMap().put(key, value);
+      bitField0_ |= 0x00000001;
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Configuration of how speech should be synthesized, mapping from
+     * language (https://dialogflow.com/docs/reference/language) to
+     * SynthesizeSpeechConfig.
+     * </pre>
+     *
+     * <code>
+     * map&lt;string, .google.cloud.dialogflow.cx.v3.SynthesizeSpeechConfig&gt; synthesize_speech_configs = 1;
+     * </code>
+     */
+    public Builder putAllSynthesizeSpeechConfigs(
+        java.util.Map<java.lang.String, com.google.cloud.dialogflow.cx.v3.SynthesizeSpeechConfig>
+            values) {
+      internalGetMutableSynthesizeSpeechConfigs().getMutableMap().putAll(values);
+      bitField0_ |= 0x00000001;
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3.TextToSpeechSettings)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3.TextToSpeechSettings)
+  private static final com.google.cloud.dialogflow.cx.v3.TextToSpeechSettings DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3.TextToSpeechSettings();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3.TextToSpeechSettings getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<TextToSpeechSettings> PARSER =
+      new com.google.protobuf.AbstractParser<TextToSpeechSettings>() {
+        @java.lang.Override
+        public TextToSpeechSettings parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
+        }
+      };
+
+  public static com.google.protobuf.Parser<TextToSpeechSettings> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<TextToSpeechSettings> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3.TextToSpeechSettings getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/TextToSpeechSettingsOrBuilder.java b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/TextToSpeechSettingsOrBuilder.java
new file mode 100644
index 000000000000..0ba96858c354
--- /dev/null
+++ b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/TextToSpeechSettingsOrBuilder.java
@@ -0,0 +1,106 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3/audio_config.proto
+
+package com.google.cloud.dialogflow.cx.v3;
+
+public interface TextToSpeechSettingsOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3.TextToSpeechSettings)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * Configuration of how speech should be synthesized, mapping from
+   * language (https://dialogflow.com/docs/reference/language) to
+   * SynthesizeSpeechConfig.
+   * </pre>
+   *
+   * <code>
+   * map&lt;string, .google.cloud.dialogflow.cx.v3.SynthesizeSpeechConfig&gt; synthesize_speech_configs = 1;
+   * </code>
+   */
+  int getSynthesizeSpeechConfigsCount();
+  /**
+   *
+   *
+   * <pre>
+   * Configuration of how speech should be synthesized, mapping from
+   * language (https://dialogflow.com/docs/reference/language) to
+   * SynthesizeSpeechConfig.
+   * </pre>
+   *
+   * <code>
+   * map&lt;string, .google.cloud.dialogflow.cx.v3.SynthesizeSpeechConfig&gt; synthesize_speech_configs = 1;
+   * </code>
+   */
+  boolean containsSynthesizeSpeechConfigs(java.lang.String key);
+  /** Use {@link #getSynthesizeSpeechConfigsMap()} instead. */
+  @java.lang.Deprecated
+  java.util.Map<java.lang.String, com.google.cloud.dialogflow.cx.v3.SynthesizeSpeechConfig>
+      getSynthesizeSpeechConfigs();
+  /**
+   *
+   *
+   * <pre>
+   * Configuration of how speech should be synthesized, mapping from
+   * language (https://dialogflow.com/docs/reference/language) to
+   * SynthesizeSpeechConfig.
+   * </pre>
+   *
+   * <code>
+   * map&lt;string, .google.cloud.dialogflow.cx.v3.SynthesizeSpeechConfig&gt; synthesize_speech_configs = 1;
+   * </code>
+   */
+  java.util.Map<java.lang.String, com.google.cloud.dialogflow.cx.v3.SynthesizeSpeechConfig>
+      getSynthesizeSpeechConfigsMap();
+  /**
+   *
+   *
+   * <pre>
+   * Configuration of how speech should be synthesized, mapping from
+   * language (https://dialogflow.com/docs/reference/language) to
+   * SynthesizeSpeechConfig.
+   * </pre>
+   *
+   * <code>
+   * map&lt;string, .google.cloud.dialogflow.cx.v3.SynthesizeSpeechConfig&gt; synthesize_speech_configs = 1;
+   * </code>
+   */
+  /* nullable */
+  com.google.cloud.dialogflow.cx.v3.SynthesizeSpeechConfig getSynthesizeSpeechConfigsOrDefault(
+      java.lang.String key,
+      /* nullable */
+      com.google.cloud.dialogflow.cx.v3.SynthesizeSpeechConfig defaultValue);
+  /**
+   *
+   *
+   * <pre>
+   * Configuration of how speech should be synthesized, mapping from
+   * language (https://dialogflow.com/docs/reference/language) to
+   * SynthesizeSpeechConfig.
+   * </pre>
+   *
+   * <code>
+   * map&lt;string, .google.cloud.dialogflow.cx.v3.SynthesizeSpeechConfig&gt; synthesize_speech_configs = 1;
+   * </code>
+   */
+  com.google.cloud.dialogflow.cx.v3.SynthesizeSpeechConfig getSynthesizeSpeechConfigsOrThrow(
+      java.lang.String key);
+}
diff --git a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/VersionProto.java b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/VersionProto.java
index 03edc8a1aede..da269ea09b72 100644
--- a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/VersionProto.java
+++ b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/VersionProto.java
@@ -88,95 +88,96 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
           + "cloud/dialogflow/cx/v3/flow.proto\032#googl"
           + "e/longrunning/operations.proto\032\033google/p"
           + "rotobuf/empty.proto\032 google/protobuf/fie"
-          + "ld_mask.proto\032\037google/protobuf/timestamp"
-          + ".proto\"Y\n\036CreateVersionOperationMetadata"
-          + "\0227\n\007version\030\001 \001(\tB&\372A#\n!dialogflow.googl"
-          + "eapis.com/Version\"\316\003\n\007Version\022\014\n\004name\030\001 "
-          + "\001(\t\022\031\n\014display_name\030\002 \001(\tB\003\340A\002\022\023\n\013descri"
-          + "ption\030\003 \001(\t\022E\n\014nlu_settings\030\004 \001(\0132*.goog"
-          + "le.cloud.dialogflow.cx.v3.NluSettingsB\003\340"
-          + "A\003\0224\n\013create_time\030\005 \001(\0132\032.google.protobu"
-          + "f.TimestampB\003\340A\003\022@\n\005state\030\006 \001(\0162,.google"
-          + ".cloud.dialogflow.cx.v3.Version.StateB\003\340"
-          + "A\003\"F\n\005State\022\025\n\021STATE_UNSPECIFIED\020\000\022\013\n\007RU"
-          + "NNING\020\001\022\r\n\tSUCCEEDED\020\002\022\n\n\006FAILED\020\003:~\352A{\n"
-          + "!dialogflow.googleapis.com/Version\022Vproj"
-          + "ects/{project}/locations/{location}/agen"
-          + "ts/{agent}/flows/{flow}/versions/{versio"
-          + "n}\"w\n\023ListVersionsRequest\0229\n\006parent\030\001 \001("
-          + "\tB)\340A\002\372A#\022!dialogflow.googleapis.com/Ver"
-          + "sion\022\021\n\tpage_size\030\002 \001(\005\022\022\n\npage_token\030\003 "
-          + "\001(\t\"i\n\024ListVersionsResponse\0228\n\010versions\030"
-          + "\001 \003(\0132&.google.cloud.dialogflow.cx.v3.Ve"
-          + "rsion\022\027\n\017next_page_token\030\002 \001(\t\"L\n\021GetVer"
-          + "sionRequest\0227\n\004name\030\001 \001(\tB)\340A\002\372A#\n!dialo"
-          + "gflow.googleapis.com/Version\"\217\001\n\024CreateV"
-          + "ersionRequest\0229\n\006parent\030\001 \001(\tB)\340A\002\372A#\022!d"
-          + "ialogflow.googleapis.com/Version\022<\n\007vers"
-          + "ion\030\002 \001(\0132&.google.cloud.dialogflow.cx.v"
-          + "3.VersionB\003\340A\002\"\212\001\n\024UpdateVersionRequest\022"
-          + "<\n\007version\030\001 \001(\0132&.google.cloud.dialogfl"
-          + "ow.cx.v3.VersionB\003\340A\002\0224\n\013update_mask\030\002 \001"
-          + "(\0132\032.google.protobuf.FieldMaskB\003\340A\002\"O\n\024D"
-          + "eleteVersionRequest\0227\n\004name\030\001 \001(\tB)\340A\002\372A"
-          + "#\n!dialogflow.googleapis.com/Version\"u\n\022"
-          + "LoadVersionRequest\0227\n\004name\030\001 \001(\tB)\340A\002\372A#"
-          + "\n!dialogflow.googleapis.com/Version\022&\n\036a"
-          + "llow_override_agent_resources\030\002 \001(\010\"\263\001\n\026"
-          + "CompareVersionsRequest\022?\n\014base_version\030\001"
-          + " \001(\tB)\340A\002\372A#\n!dialogflow.googleapis.com/"
-          + "Version\022A\n\016target_version\030\002 \001(\tB)\340A\002\372A#\n"
-          + "!dialogflow.googleapis.com/Version\022\025\n\rla"
-          + "nguage_code\030\003 \001(\t\"\223\001\n\027CompareVersionsRes"
-          + "ponse\022!\n\031base_version_content_json\030\001 \001(\t"
-          + "\022#\n\033target_version_content_json\030\002 \001(\t\0220\n"
-          + "\014compare_time\030\003 \001(\0132\032.google.protobuf.Ti"
-          + "mestamp2\342\014\n\010Versions\022\307\001\n\014ListVersions\0222."
-          + "google.cloud.dialogflow.cx.v3.ListVersio"
-          + "nsRequest\0323.google.cloud.dialogflow.cx.v"
-          + "3.ListVersionsResponse\"N\202\323\344\223\002?\022=/v3/{par"
-          + "ent=projects/*/locations/*/agents/*/flow"
-          + "s/*}/versions\332A\006parent\022\264\001\n\nGetVersion\0220."
-          + "google.cloud.dialogflow.cx.v3.GetVersion"
-          + "Request\032&.google.cloud.dialogflow.cx.v3."
-          + "Version\"L\202\323\344\223\002?\022=/v3/{name=projects/*/lo"
-          + "cations/*/agents/*/flows/*/versions/*}\332A"
-          + "\004name\022\361\001\n\rCreateVersion\0223.google.cloud.d"
-          + "ialogflow.cx.v3.CreateVersionRequest\032\035.g"
-          + "oogle.longrunning.Operation\"\213\001\202\323\344\223\002H\"=/v"
-          + "3/{parent=projects/*/locations/*/agents/"
-          + "*/flows/*}/versions:\007version\332A\016parent,ve"
-          + "rsion\312A)\n\007Version\022\036CreateVersionOperatio"
-          + "nMetadata\022\332\001\n\rUpdateVersion\0223.google.clo"
-          + "ud.dialogflow.cx.v3.UpdateVersionRequest"
-          + "\032&.google.cloud.dialogflow.cx.v3.Version"
-          + "\"l\202\323\344\223\002P2E/v3/{version.name=projects/*/l"
-          + "ocations/*/agents/*/flows/*/versions/*}:"
-          + "\007version\332A\023version,update_mask\022\252\001\n\rDelet"
-          + "eVersion\0223.google.cloud.dialogflow.cx.v3"
-          + ".DeleteVersionRequest\032\026.google.protobuf."
-          + "Empty\"L\202\323\344\223\002?*=/v3/{name=projects/*/loca"
-          + "tions/*/agents/*/flows/*/versions/*}\332A\004n"
-          + "ame\022\350\001\n\013LoadVersion\0221.google.cloud.dialo"
-          + "gflow.cx.v3.LoadVersionRequest\032\035.google."
-          + "longrunning.Operation\"\206\001\202\323\344\223\002G\"B/v3/{nam"
-          + "e=projects/*/locations/*/agents/*/flows/"
-          + "*/versions/*}:load:\001*\332A\004name\312A/\n\025google."
-          + "protobuf.Empty\022\026google.protobuf.Struct\022\361"
-          + "\001\n\017CompareVersions\0225.google.cloud.dialog"
-          + "flow.cx.v3.CompareVersionsRequest\0326.goog"
-          + "le.cloud.dialogflow.cx.v3.CompareVersion"
-          + "sResponse\"o\202\323\344\223\002Z\"U/v3/{base_version=pro"
-          + "jects/*/locations/*/agents/*/flows/*/ver"
-          + "sions/*}:compareVersions:\001*\332A\014base_versi"
-          + "on\032x\312A\031dialogflow.googleapis.com\322AYhttps"
-          + "://www.googleapis.com/auth/cloud-platfor"
-          + "m,https://www.googleapis.com/auth/dialog"
-          + "flowB\262\001\n!com.google.cloud.dialogflow.cx."
-          + "v3B\014VersionProtoP\001Z1cloud.google.com/go/"
-          + "dialogflow/cx/apiv3/cxpb;cxpb\370\001\001\242\002\002DF\252\002\035"
-          + "Google.Cloud.Dialogflow.Cx.V3\352\002!Google::"
-          + "Cloud::Dialogflow::CX::V3b\006proto3"
+          + "ld_mask.proto\032\034google/protobuf/struct.pr"
+          + "oto\032\037google/protobuf/timestamp.proto\"Y\n\036"
+          + "CreateVersionOperationMetadata\0227\n\007versio"
+          + "n\030\001 \001(\tB&\372A#\n!dialogflow.googleapis.com/"
+          + "Version\"\316\003\n\007Version\022\014\n\004name\030\001 \001(\t\022\031\n\014dis"
+          + "play_name\030\002 \001(\tB\003\340A\002\022\023\n\013description\030\003 \001("
+          + "\t\022E\n\014nlu_settings\030\004 \001(\0132*.google.cloud.d"
+          + "ialogflow.cx.v3.NluSettingsB\003\340A\003\0224\n\013crea"
+          + "te_time\030\005 \001(\0132\032.google.protobuf.Timestam"
+          + "pB\003\340A\003\022@\n\005state\030\006 \001(\0162,.google.cloud.dia"
+          + "logflow.cx.v3.Version.StateB\003\340A\003\"F\n\005Stat"
+          + "e\022\025\n\021STATE_UNSPECIFIED\020\000\022\013\n\007RUNNING\020\001\022\r\n"
+          + "\tSUCCEEDED\020\002\022\n\n\006FAILED\020\003:~\352A{\n!dialogflo"
+          + "w.googleapis.com/Version\022Vprojects/{proj"
+          + "ect}/locations/{location}/agents/{agent}"
+          + "/flows/{flow}/versions/{version}\"w\n\023List"
+          + "VersionsRequest\0229\n\006parent\030\001 \001(\tB)\340A\002\372A#\022"
+          + "!dialogflow.googleapis.com/Version\022\021\n\tpa"
+          + "ge_size\030\002 \001(\005\022\022\n\npage_token\030\003 \001(\t\"i\n\024Lis"
+          + "tVersionsResponse\0228\n\010versions\030\001 \003(\0132&.go"
+          + "ogle.cloud.dialogflow.cx.v3.Version\022\027\n\017n"
+          + "ext_page_token\030\002 \001(\t\"L\n\021GetVersionReques"
+          + "t\0227\n\004name\030\001 \001(\tB)\340A\002\372A#\n!dialogflow.goog"
+          + "leapis.com/Version\"\217\001\n\024CreateVersionRequ"
+          + "est\0229\n\006parent\030\001 \001(\tB)\340A\002\372A#\022!dialogflow."
+          + "googleapis.com/Version\022<\n\007version\030\002 \001(\0132"
+          + "&.google.cloud.dialogflow.cx.v3.VersionB"
+          + "\003\340A\002\"\212\001\n\024UpdateVersionRequest\022<\n\007version"
+          + "\030\001 \001(\0132&.google.cloud.dialogflow.cx.v3.V"
+          + "ersionB\003\340A\002\0224\n\013update_mask\030\002 \001(\0132\032.googl"
+          + "e.protobuf.FieldMaskB\003\340A\002\"O\n\024DeleteVersi"
+          + "onRequest\0227\n\004name\030\001 \001(\tB)\340A\002\372A#\n!dialogf"
+          + "low.googleapis.com/Version\"u\n\022LoadVersio"
+          + "nRequest\0227\n\004name\030\001 \001(\tB)\340A\002\372A#\n!dialogfl"
+          + "ow.googleapis.com/Version\022&\n\036allow_overr"
+          + "ide_agent_resources\030\002 \001(\010\"\263\001\n\026CompareVer"
+          + "sionsRequest\022?\n\014base_version\030\001 \001(\tB)\340A\002\372"
+          + "A#\n!dialogflow.googleapis.com/Version\022A\n"
+          + "\016target_version\030\002 \001(\tB)\340A\002\372A#\n!dialogflo"
+          + "w.googleapis.com/Version\022\025\n\rlanguage_cod"
+          + "e\030\003 \001(\t\"\223\001\n\027CompareVersionsResponse\022!\n\031b"
+          + "ase_version_content_json\030\001 \001(\t\022#\n\033target"
+          + "_version_content_json\030\002 \001(\t\0220\n\014compare_t"
+          + "ime\030\003 \001(\0132\032.google.protobuf.Timestamp2\342\014"
+          + "\n\010Versions\022\307\001\n\014ListVersions\0222.google.clo"
+          + "ud.dialogflow.cx.v3.ListVersionsRequest\032"
+          + "3.google.cloud.dialogflow.cx.v3.ListVers"
+          + "ionsResponse\"N\202\323\344\223\002?\022=/v3/{parent=projec"
+          + "ts/*/locations/*/agents/*/flows/*}/versi"
+          + "ons\332A\006parent\022\264\001\n\nGetVersion\0220.google.clo"
+          + "ud.dialogflow.cx.v3.GetVersionRequest\032&."
+          + "google.cloud.dialogflow.cx.v3.Version\"L\202"
+          + "\323\344\223\002?\022=/v3/{name=projects/*/locations/*/"
+          + "agents/*/flows/*/versions/*}\332A\004name\022\361\001\n\r"
+          + "CreateVersion\0223.google.cloud.dialogflow."
+          + "cx.v3.CreateVersionRequest\032\035.google.long"
+          + "running.Operation\"\213\001\202\323\344\223\002H\"=/v3/{parent="
+          + "projects/*/locations/*/agents/*/flows/*}"
+          + "/versions:\007version\332A\016parent,version\312A)\n\007"
+          + "Version\022\036CreateVersionOperationMetadata\022"
+          + "\332\001\n\rUpdateVersion\0223.google.cloud.dialogf"
+          + "low.cx.v3.UpdateVersionRequest\032&.google."
+          + "cloud.dialogflow.cx.v3.Version\"l\202\323\344\223\002P2E"
+          + "/v3/{version.name=projects/*/locations/*"
+          + "/agents/*/flows/*/versions/*}:\007version\332A"
+          + "\023version,update_mask\022\252\001\n\rDeleteVersion\0223"
+          + ".google.cloud.dialogflow.cx.v3.DeleteVer"
+          + "sionRequest\032\026.google.protobuf.Empty\"L\202\323\344"
+          + "\223\002?*=/v3/{name=projects/*/locations/*/ag"
+          + "ents/*/flows/*/versions/*}\332A\004name\022\350\001\n\013Lo"
+          + "adVersion\0221.google.cloud.dialogflow.cx.v"
+          + "3.LoadVersionRequest\032\035.google.longrunnin"
+          + "g.Operation\"\206\001\202\323\344\223\002G\"B/v3/{name=projects"
+          + "/*/locations/*/agents/*/flows/*/versions"
+          + "/*}:load:\001*\332A\004name\312A/\n\025google.protobuf.E"
+          + "mpty\022\026google.protobuf.Struct\022\361\001\n\017Compare"
+          + "Versions\0225.google.cloud.dialogflow.cx.v3"
+          + ".CompareVersionsRequest\0326.google.cloud.d"
+          + "ialogflow.cx.v3.CompareVersionsResponse\""
+          + "o\202\323\344\223\002Z\"U/v3/{base_version=projects/*/lo"
+          + "cations/*/agents/*/flows/*/versions/*}:c"
+          + "ompareVersions:\001*\332A\014base_version\032x\312A\031dia"
+          + "logflow.googleapis.com\322AYhttps://www.goo"
+          + "gleapis.com/auth/cloud-platform,https://"
+          + "www.googleapis.com/auth/dialogflowB\262\001\n!c"
+          + "om.google.cloud.dialogflow.cx.v3B\014Versio"
+          + "nProtoP\001Z1cloud.google.com/go/dialogflow"
+          + "/cx/apiv3/cxpb;cxpb\370\001\001\242\002\002DF\252\002\035Google.Clo"
+          + "ud.Dialogflow.Cx.V3\352\002!Google::Cloud::Dia"
+          + "logflow::CX::V3b\006proto3"
     };
     descriptor =
         com.google.protobuf.Descriptors.FileDescriptor.internalBuildGeneratedFileFrom(
@@ -190,6 +191,7 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
               com.google.longrunning.OperationsProto.getDescriptor(),
               com.google.protobuf.EmptyProto.getDescriptor(),
               com.google.protobuf.FieldMaskProto.getDescriptor(),
+              com.google.protobuf.StructProto.getDescriptor(),
               com.google.protobuf.TimestampProto.getDescriptor(),
             });
     internal_static_google_cloud_dialogflow_cx_v3_CreateVersionOperationMetadata_descriptor =
@@ -300,6 +302,7 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
     com.google.longrunning.OperationsProto.getDescriptor();
     com.google.protobuf.EmptyProto.getDescriptor();
     com.google.protobuf.FieldMaskProto.getDescriptor();
+    com.google.protobuf.StructProto.getDescriptor();
     com.google.protobuf.TimestampProto.getDescriptor();
   }
 
diff --git a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/proto/google/cloud/dialogflow/cx/v3/advanced_settings.proto b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/proto/google/cloud/dialogflow/cx/v3/advanced_settings.proto
index 01d0485775ed..05460932a81e 100644
--- a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/proto/google/cloud/dialogflow/cx/v3/advanced_settings.proto
+++ b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/proto/google/cloud/dialogflow/cx/v3/advanced_settings.proto
@@ -17,6 +17,7 @@ syntax = "proto3";
 package google.cloud.dialogflow.cx.v3;
 
 import "google/api/field_behavior.proto";
+import "google/cloud/dialogflow/cx/v3/gcs.proto";
 
 option cc_enable_arenas = true;
 option csharp_namespace = "Google.Cloud.Dialogflow.Cx.V3";
@@ -48,6 +49,13 @@ message AdvancedSettings {
     bool enable_interaction_logging = 3;
   }
 
+  // If present, incoming audio is exported by Dialogflow to the configured
+  // Google Cloud Storage destination.
+  // Exposed at the following levels:
+  // - Agent level
+  // - Flow level
+  GcsDestination audio_export_gcs_destination = 2;
+
   // Settings for logging.
   // Settings for Dialogflow History, Contact Center messages, StackDriver logs,
   // and speech logging.
diff --git a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/proto/google/cloud/dialogflow/cx/v3/agent.proto b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/proto/google/cloud/dialogflow/cx/v3/agent.proto
index 1f5f93f9275f..2c7ed1adb5e9 100644
--- a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/proto/google/cloud/dialogflow/cx/v3/agent.proto
+++ b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/proto/google/cloud/dialogflow/cx/v3/agent.proto
@@ -21,10 +21,12 @@ import "google/api/client.proto";
 import "google/api/field_behavior.proto";
 import "google/api/resource.proto";
 import "google/cloud/dialogflow/cx/v3/advanced_settings.proto";
+import "google/cloud/dialogflow/cx/v3/audio_config.proto";
 import "google/cloud/dialogflow/cx/v3/flow.proto";
 import "google/longrunning/operations.proto";
 import "google/protobuf/empty.proto";
 import "google/protobuf/field_mask.proto";
+import "google/protobuf/struct.proto";
 
 option cc_enable_arenas = true;
 option csharp_namespace = "Google.Cloud.Dialogflow.Cx.V3";
@@ -266,6 +268,10 @@ message Agent {
   // Hierarchical advanced settings for this agent. The settings exposed at the
   // lower level overrides the settings exposed at the higher level.
   AdvancedSettings advanced_settings = 22;
+
+  // Settings on instructing the speech synthesizer on how to generate the
+  // output audio content.
+  TextToSpeechSettings text_to_speech_settings = 31;
 }
 
 // The request message for
diff --git a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/proto/google/cloud/dialogflow/cx/v3/audio_config.proto b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/proto/google/cloud/dialogflow/cx/v3/audio_config.proto
index ea06c183942e..259c81cb40cc 100644
--- a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/proto/google/cloud/dialogflow/cx/v3/audio_config.proto
+++ b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/proto/google/cloud/dialogflow/cx/v3/audio_config.proto
@@ -316,3 +316,11 @@ message OutputAudioConfig {
   // Optional. Configuration of how speech should be synthesized.
   SynthesizeSpeechConfig synthesize_speech_config = 3;
 }
+
+// Settings related to speech generating.
+message TextToSpeechSettings {
+  // Configuration of how speech should be synthesized, mapping from
+  // language (https://dialogflow.com/docs/reference/language) to
+  // SynthesizeSpeechConfig.
+  map<string, SynthesizeSpeechConfig> synthesize_speech_configs = 1;
+}
diff --git a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/proto/google/cloud/dialogflow/cx/v3/environment.proto b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/proto/google/cloud/dialogflow/cx/v3/environment.proto
index 8b42411d5423..5175a15f79ba 100644
--- a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/proto/google/cloud/dialogflow/cx/v3/environment.proto
+++ b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/proto/google/cloud/dialogflow/cx/v3/environment.proto
@@ -25,6 +25,7 @@ import "google/cloud/dialogflow/cx/v3/webhook.proto";
 import "google/longrunning/operations.proto";
 import "google/protobuf/empty.proto";
 import "google/protobuf/field_mask.proto";
+import "google/protobuf/struct.proto";
 import "google/protobuf/timestamp.proto";
 
 option cc_enable_arenas = true;
@@ -253,12 +254,11 @@ message Environment {
   // 500 characters. If exceeded, the request is rejected.
   string description = 3;
 
-  // Required. A list of configurations for flow versions. You should include
-  // version configs for all flows that are reachable from [`Start
+  // A list of configurations for flow versions. You should include version
+  // configs for all flows that are reachable from [`Start
   // Flow`][Agent.start_flow] in the agent. Otherwise, an error will be
   // returned.
-  repeated VersionConfig version_configs = 6
-      [(google.api.field_behavior) = REQUIRED];
+  repeated VersionConfig version_configs = 6;
 
   // Output only. Update time of this environment.
   google.protobuf.Timestamp update_time = 5
diff --git a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/proto/google/cloud/dialogflow/cx/v3/flow.proto b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/proto/google/cloud/dialogflow/cx/v3/flow.proto
index ea7d71a73ee8..d84be312f727 100644
--- a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/proto/google/cloud/dialogflow/cx/v3/flow.proto
+++ b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/proto/google/cloud/dialogflow/cx/v3/flow.proto
@@ -25,6 +25,7 @@ import "google/cloud/dialogflow/cx/v3/validation_message.proto";
 import "google/longrunning/operations.proto";
 import "google/protobuf/empty.proto";
 import "google/protobuf/field_mask.proto";
+import "google/protobuf/struct.proto";
 import "google/protobuf/timestamp.proto";
 
 option cc_enable_arenas = true;
diff --git a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/proto/google/cloud/dialogflow/cx/v3/gcs.proto b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/proto/google/cloud/dialogflow/cx/v3/gcs.proto
new file mode 100644
index 000000000000..bf1a43cb2b70
--- /dev/null
+++ b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/proto/google/cloud/dialogflow/cx/v3/gcs.proto
@@ -0,0 +1,39 @@
+// Copyright 2022 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+syntax = "proto3";
+
+package google.cloud.dialogflow.cx.v3;
+
+import "google/api/field_behavior.proto";
+
+option cc_enable_arenas = true;
+option csharp_namespace = "Google.Cloud.Dialogflow.Cx.V3";
+option go_package = "cloud.google.com/go/dialogflow/cx/apiv3/cxpb;cxpb";
+option java_multiple_files = true;
+option java_outer_classname = "GcsProto";
+option java_package = "com.google.cloud.dialogflow.cx.v3";
+option objc_class_prefix = "DF";
+option ruby_package = "Google::Cloud::Dialogflow::CX::V3";
+
+// Google Cloud Storage location for a Dialogflow operation that writes or
+// exports objects (e.g. exported agent or transcripts) outside of Dialogflow.
+message GcsDestination {
+  // Required. The Google Cloud Storage URI for the exported objects. A URI is
+  // of the form:
+  //   gs://bucket/object-name-or-prefix
+  // Whether a full object name, or just a prefix, its usage depends on the
+  // Dialogflow operation.
+  string uri = 1 [(google.api.field_behavior) = REQUIRED];
+}
diff --git a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/proto/google/cloud/dialogflow/cx/v3/session.proto b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/proto/google/cloud/dialogflow/cx/v3/session.proto
index 2b7825d1176d..a17815baeb4e 100644
--- a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/proto/google/cloud/dialogflow/cx/v3/session.proto
+++ b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/proto/google/cloud/dialogflow/cx/v3/session.proto
@@ -833,6 +833,9 @@ message MatchIntentRequest {
 
   // Required. The input specification.
   QueryInput query_input = 3 [(google.api.field_behavior) = REQUIRED];
+
+  // Persist session parameter changes from `query_params`.
+  bool persist_parameter_changes = 5;
 }
 
 // Response of [MatchIntent][].
diff --git a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/proto/google/cloud/dialogflow/cx/v3/version.proto b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/proto/google/cloud/dialogflow/cx/v3/version.proto
index 335cb835de73..d2adfee4fd3f 100644
--- a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/proto/google/cloud/dialogflow/cx/v3/version.proto
+++ b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3/src/main/proto/google/cloud/dialogflow/cx/v3/version.proto
@@ -24,6 +24,7 @@ import "google/cloud/dialogflow/cx/v3/flow.proto";
 import "google/longrunning/operations.proto";
 import "google/protobuf/empty.proto";
 import "google/protobuf/field_mask.proto";
+import "google/protobuf/struct.proto";
 import "google/protobuf/timestamp.proto";
 
 option cc_enable_arenas = true;
diff --git a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/AdvancedSettings.java b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/AdvancedSettings.java
index ffc7b40897c5..76c2a6d4b4cc 100644
--- a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/AdvancedSettings.java
+++ b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/AdvancedSettings.java
@@ -742,6 +742,72 @@ public com.google.protobuf.Parser<LoggingSettings> getParserForType() {
     }
   }
 
+  public static final int AUDIO_EXPORT_GCS_DESTINATION_FIELD_NUMBER = 2;
+  private com.google.cloud.dialogflow.cx.v3beta1.GcsDestination audioExportGcsDestination_;
+  /**
+   *
+   *
+   * <pre>
+   * If present, incoming audio is exported by Dialogflow to the configured
+   * Google Cloud Storage destination.
+   * Exposed at the following levels:
+   * - Agent level
+   * - Flow level
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.GcsDestination audio_export_gcs_destination = 2;
+   * </code>
+   *
+   * @return Whether the audioExportGcsDestination field is set.
+   */
+  @java.lang.Override
+  public boolean hasAudioExportGcsDestination() {
+    return audioExportGcsDestination_ != null;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * If present, incoming audio is exported by Dialogflow to the configured
+   * Google Cloud Storage destination.
+   * Exposed at the following levels:
+   * - Agent level
+   * - Flow level
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.GcsDestination audio_export_gcs_destination = 2;
+   * </code>
+   *
+   * @return The audioExportGcsDestination.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.GcsDestination getAudioExportGcsDestination() {
+    return audioExportGcsDestination_ == null
+        ? com.google.cloud.dialogflow.cx.v3beta1.GcsDestination.getDefaultInstance()
+        : audioExportGcsDestination_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * If present, incoming audio is exported by Dialogflow to the configured
+   * Google Cloud Storage destination.
+   * Exposed at the following levels:
+   * - Agent level
+   * - Flow level
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.GcsDestination audio_export_gcs_destination = 2;
+   * </code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.GcsDestinationOrBuilder
+      getAudioExportGcsDestinationOrBuilder() {
+    return audioExportGcsDestination_ == null
+        ? com.google.cloud.dialogflow.cx.v3beta1.GcsDestination.getDefaultInstance()
+        : audioExportGcsDestination_;
+  }
+
   public static final int LOGGING_SETTINGS_FIELD_NUMBER = 6;
   private com.google.cloud.dialogflow.cx.v3beta1.AdvancedSettings.LoggingSettings loggingSettings_;
   /**
@@ -828,6 +894,9 @@ public final boolean isInitialized() {
 
   @java.lang.Override
   public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (audioExportGcsDestination_ != null) {
+      output.writeMessage(2, getAudioExportGcsDestination());
+    }
     if (loggingSettings_ != null) {
       output.writeMessage(6, getLoggingSettings());
     }
@@ -840,6 +909,11 @@ public int getSerializedSize() {
     if (size != -1) return size;
 
     size = 0;
+    if (audioExportGcsDestination_ != null) {
+      size +=
+          com.google.protobuf.CodedOutputStream.computeMessageSize(
+              2, getAudioExportGcsDestination());
+    }
     if (loggingSettings_ != null) {
       size += com.google.protobuf.CodedOutputStream.computeMessageSize(6, getLoggingSettings());
     }
@@ -859,6 +933,11 @@ public boolean equals(final java.lang.Object obj) {
     com.google.cloud.dialogflow.cx.v3beta1.AdvancedSettings other =
         (com.google.cloud.dialogflow.cx.v3beta1.AdvancedSettings) obj;
 
+    if (hasAudioExportGcsDestination() != other.hasAudioExportGcsDestination()) return false;
+    if (hasAudioExportGcsDestination()) {
+      if (!getAudioExportGcsDestination().equals(other.getAudioExportGcsDestination()))
+        return false;
+    }
     if (hasLoggingSettings() != other.hasLoggingSettings()) return false;
     if (hasLoggingSettings()) {
       if (!getLoggingSettings().equals(other.getLoggingSettings())) return false;
@@ -874,6 +953,10 @@ public int hashCode() {
     }
     int hash = 41;
     hash = (19 * hash) + getDescriptor().hashCode();
+    if (hasAudioExportGcsDestination()) {
+      hash = (37 * hash) + AUDIO_EXPORT_GCS_DESTINATION_FIELD_NUMBER;
+      hash = (53 * hash) + getAudioExportGcsDestination().hashCode();
+    }
     if (hasLoggingSettings()) {
       hash = (37 * hash) + LOGGING_SETTINGS_FIELD_NUMBER;
       hash = (53 * hash) + getLoggingSettings().hashCode();
@@ -1026,6 +1109,11 @@ private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
     public Builder clear() {
       super.clear();
       bitField0_ = 0;
+      audioExportGcsDestination_ = null;
+      if (audioExportGcsDestinationBuilder_ != null) {
+        audioExportGcsDestinationBuilder_.dispose();
+        audioExportGcsDestinationBuilder_ = null;
+      }
       loggingSettings_ = null;
       if (loggingSettingsBuilder_ != null) {
         loggingSettingsBuilder_.dispose();
@@ -1068,6 +1156,12 @@ public com.google.cloud.dialogflow.cx.v3beta1.AdvancedSettings buildPartial() {
     private void buildPartial0(com.google.cloud.dialogflow.cx.v3beta1.AdvancedSettings result) {
       int from_bitField0_ = bitField0_;
       if (((from_bitField0_ & 0x00000001) != 0)) {
+        result.audioExportGcsDestination_ =
+            audioExportGcsDestinationBuilder_ == null
+                ? audioExportGcsDestination_
+                : audioExportGcsDestinationBuilder_.build();
+      }
+      if (((from_bitField0_ & 0x00000002) != 0)) {
         result.loggingSettings_ =
             loggingSettingsBuilder_ == null ? loggingSettings_ : loggingSettingsBuilder_.build();
       }
@@ -1119,6 +1213,9 @@ public Builder mergeFrom(com.google.protobuf.Message other) {
     public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.AdvancedSettings other) {
       if (other == com.google.cloud.dialogflow.cx.v3beta1.AdvancedSettings.getDefaultInstance())
         return this;
+      if (other.hasAudioExportGcsDestination()) {
+        mergeAudioExportGcsDestination(other.getAudioExportGcsDestination());
+      }
       if (other.hasLoggingSettings()) {
         mergeLoggingSettings(other.getLoggingSettings());
       }
@@ -1148,10 +1245,17 @@ public Builder mergeFrom(
             case 0:
               done = true;
               break;
+            case 18:
+              {
+                input.readMessage(
+                    getAudioExportGcsDestinationFieldBuilder().getBuilder(), extensionRegistry);
+                bitField0_ |= 0x00000001;
+                break;
+              } // case 18
             case 50:
               {
                 input.readMessage(getLoggingSettingsFieldBuilder().getBuilder(), extensionRegistry);
-                bitField0_ |= 0x00000001;
+                bitField0_ |= 0x00000002;
                 break;
               } // case 50
             default:
@@ -1173,6 +1277,240 @@ public Builder mergeFrom(
 
     private int bitField0_;
 
+    private com.google.cloud.dialogflow.cx.v3beta1.GcsDestination audioExportGcsDestination_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.GcsDestination,
+            com.google.cloud.dialogflow.cx.v3beta1.GcsDestination.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.GcsDestinationOrBuilder>
+        audioExportGcsDestinationBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * If present, incoming audio is exported by Dialogflow to the configured
+     * Google Cloud Storage destination.
+     * Exposed at the following levels:
+     * - Agent level
+     * - Flow level
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.GcsDestination audio_export_gcs_destination = 2;
+     * </code>
+     *
+     * @return Whether the audioExportGcsDestination field is set.
+     */
+    public boolean hasAudioExportGcsDestination() {
+      return ((bitField0_ & 0x00000001) != 0);
+    }
+    /**
+     *
+     *
+     * <pre>
+     * If present, incoming audio is exported by Dialogflow to the configured
+     * Google Cloud Storage destination.
+     * Exposed at the following levels:
+     * - Agent level
+     * - Flow level
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.GcsDestination audio_export_gcs_destination = 2;
+     * </code>
+     *
+     * @return The audioExportGcsDestination.
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.GcsDestination getAudioExportGcsDestination() {
+      if (audioExportGcsDestinationBuilder_ == null) {
+        return audioExportGcsDestination_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.GcsDestination.getDefaultInstance()
+            : audioExportGcsDestination_;
+      } else {
+        return audioExportGcsDestinationBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * If present, incoming audio is exported by Dialogflow to the configured
+     * Google Cloud Storage destination.
+     * Exposed at the following levels:
+     * - Agent level
+     * - Flow level
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.GcsDestination audio_export_gcs_destination = 2;
+     * </code>
+     */
+    public Builder setAudioExportGcsDestination(
+        com.google.cloud.dialogflow.cx.v3beta1.GcsDestination value) {
+      if (audioExportGcsDestinationBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        audioExportGcsDestination_ = value;
+      } else {
+        audioExportGcsDestinationBuilder_.setMessage(value);
+      }
+      bitField0_ |= 0x00000001;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * If present, incoming audio is exported by Dialogflow to the configured
+     * Google Cloud Storage destination.
+     * Exposed at the following levels:
+     * - Agent level
+     * - Flow level
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.GcsDestination audio_export_gcs_destination = 2;
+     * </code>
+     */
+    public Builder setAudioExportGcsDestination(
+        com.google.cloud.dialogflow.cx.v3beta1.GcsDestination.Builder builderForValue) {
+      if (audioExportGcsDestinationBuilder_ == null) {
+        audioExportGcsDestination_ = builderForValue.build();
+      } else {
+        audioExportGcsDestinationBuilder_.setMessage(builderForValue.build());
+      }
+      bitField0_ |= 0x00000001;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * If present, incoming audio is exported by Dialogflow to the configured
+     * Google Cloud Storage destination.
+     * Exposed at the following levels:
+     * - Agent level
+     * - Flow level
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.GcsDestination audio_export_gcs_destination = 2;
+     * </code>
+     */
+    public Builder mergeAudioExportGcsDestination(
+        com.google.cloud.dialogflow.cx.v3beta1.GcsDestination value) {
+      if (audioExportGcsDestinationBuilder_ == null) {
+        if (((bitField0_ & 0x00000001) != 0)
+            && audioExportGcsDestination_ != null
+            && audioExportGcsDestination_
+                != com.google.cloud.dialogflow.cx.v3beta1.GcsDestination.getDefaultInstance()) {
+          getAudioExportGcsDestinationBuilder().mergeFrom(value);
+        } else {
+          audioExportGcsDestination_ = value;
+        }
+      } else {
+        audioExportGcsDestinationBuilder_.mergeFrom(value);
+      }
+      bitField0_ |= 0x00000001;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * If present, incoming audio is exported by Dialogflow to the configured
+     * Google Cloud Storage destination.
+     * Exposed at the following levels:
+     * - Agent level
+     * - Flow level
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.GcsDestination audio_export_gcs_destination = 2;
+     * </code>
+     */
+    public Builder clearAudioExportGcsDestination() {
+      bitField0_ = (bitField0_ & ~0x00000001);
+      audioExportGcsDestination_ = null;
+      if (audioExportGcsDestinationBuilder_ != null) {
+        audioExportGcsDestinationBuilder_.dispose();
+        audioExportGcsDestinationBuilder_ = null;
+      }
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * If present, incoming audio is exported by Dialogflow to the configured
+     * Google Cloud Storage destination.
+     * Exposed at the following levels:
+     * - Agent level
+     * - Flow level
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.GcsDestination audio_export_gcs_destination = 2;
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.GcsDestination.Builder
+        getAudioExportGcsDestinationBuilder() {
+      bitField0_ |= 0x00000001;
+      onChanged();
+      return getAudioExportGcsDestinationFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * If present, incoming audio is exported by Dialogflow to the configured
+     * Google Cloud Storage destination.
+     * Exposed at the following levels:
+     * - Agent level
+     * - Flow level
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.GcsDestination audio_export_gcs_destination = 2;
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.GcsDestinationOrBuilder
+        getAudioExportGcsDestinationOrBuilder() {
+      if (audioExportGcsDestinationBuilder_ != null) {
+        return audioExportGcsDestinationBuilder_.getMessageOrBuilder();
+      } else {
+        return audioExportGcsDestination_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.GcsDestination.getDefaultInstance()
+            : audioExportGcsDestination_;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * If present, incoming audio is exported by Dialogflow to the configured
+     * Google Cloud Storage destination.
+     * Exposed at the following levels:
+     * - Agent level
+     * - Flow level
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.GcsDestination audio_export_gcs_destination = 2;
+     * </code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.GcsDestination,
+            com.google.cloud.dialogflow.cx.v3beta1.GcsDestination.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.GcsDestinationOrBuilder>
+        getAudioExportGcsDestinationFieldBuilder() {
+      if (audioExportGcsDestinationBuilder_ == null) {
+        audioExportGcsDestinationBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.GcsDestination,
+                com.google.cloud.dialogflow.cx.v3beta1.GcsDestination.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.GcsDestinationOrBuilder>(
+                getAudioExportGcsDestination(), getParentForChildren(), isClean());
+        audioExportGcsDestination_ = null;
+      }
+      return audioExportGcsDestinationBuilder_;
+    }
+
     private com.google.cloud.dialogflow.cx.v3beta1.AdvancedSettings.LoggingSettings
         loggingSettings_;
     private com.google.protobuf.SingleFieldBuilderV3<
@@ -1198,7 +1536,7 @@ public Builder mergeFrom(
      * @return Whether the loggingSettings field is set.
      */
     public boolean hasLoggingSettings() {
-      return ((bitField0_ & 0x00000001) != 0);
+      return ((bitField0_ & 0x00000002) != 0);
     }
     /**
      *
@@ -1253,7 +1591,7 @@ public Builder setLoggingSettings(
       } else {
         loggingSettingsBuilder_.setMessage(value);
       }
-      bitField0_ |= 0x00000001;
+      bitField0_ |= 0x00000002;
       onChanged();
       return this;
     }
@@ -1280,7 +1618,7 @@ public Builder setLoggingSettings(
       } else {
         loggingSettingsBuilder_.setMessage(builderForValue.build());
       }
-      bitField0_ |= 0x00000001;
+      bitField0_ |= 0x00000002;
       onChanged();
       return this;
     }
@@ -1302,7 +1640,7 @@ public Builder setLoggingSettings(
     public Builder mergeLoggingSettings(
         com.google.cloud.dialogflow.cx.v3beta1.AdvancedSettings.LoggingSettings value) {
       if (loggingSettingsBuilder_ == null) {
-        if (((bitField0_ & 0x00000001) != 0)
+        if (((bitField0_ & 0x00000002) != 0)
             && loggingSettings_ != null
             && loggingSettings_
                 != com.google.cloud.dialogflow.cx.v3beta1.AdvancedSettings.LoggingSettings
@@ -1314,7 +1652,7 @@ public Builder mergeLoggingSettings(
       } else {
         loggingSettingsBuilder_.mergeFrom(value);
       }
-      bitField0_ |= 0x00000001;
+      bitField0_ |= 0x00000002;
       onChanged();
       return this;
     }
@@ -1334,7 +1672,7 @@ public Builder mergeLoggingSettings(
      * </code>
      */
     public Builder clearLoggingSettings() {
-      bitField0_ = (bitField0_ & ~0x00000001);
+      bitField0_ = (bitField0_ & ~0x00000002);
       loggingSettings_ = null;
       if (loggingSettingsBuilder_ != null) {
         loggingSettingsBuilder_.dispose();
@@ -1360,7 +1698,7 @@ public Builder clearLoggingSettings() {
      */
     public com.google.cloud.dialogflow.cx.v3beta1.AdvancedSettings.LoggingSettings.Builder
         getLoggingSettingsBuilder() {
-      bitField0_ |= 0x00000001;
+      bitField0_ |= 0x00000002;
       onChanged();
       return getLoggingSettingsFieldBuilder().getBuilder();
     }
diff --git a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/AdvancedSettingsOrBuilder.java b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/AdvancedSettingsOrBuilder.java
index aa2889cf33cd..0f43e275d590 100644
--- a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/AdvancedSettingsOrBuilder.java
+++ b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/AdvancedSettingsOrBuilder.java
@@ -23,6 +23,57 @@ public interface AdvancedSettingsOrBuilder
     // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.AdvancedSettings)
     com.google.protobuf.MessageOrBuilder {
 
+  /**
+   *
+   *
+   * <pre>
+   * If present, incoming audio is exported by Dialogflow to the configured
+   * Google Cloud Storage destination.
+   * Exposed at the following levels:
+   * - Agent level
+   * - Flow level
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.GcsDestination audio_export_gcs_destination = 2;
+   * </code>
+   *
+   * @return Whether the audioExportGcsDestination field is set.
+   */
+  boolean hasAudioExportGcsDestination();
+  /**
+   *
+   *
+   * <pre>
+   * If present, incoming audio is exported by Dialogflow to the configured
+   * Google Cloud Storage destination.
+   * Exposed at the following levels:
+   * - Agent level
+   * - Flow level
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.GcsDestination audio_export_gcs_destination = 2;
+   * </code>
+   *
+   * @return The audioExportGcsDestination.
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.GcsDestination getAudioExportGcsDestination();
+  /**
+   *
+   *
+   * <pre>
+   * If present, incoming audio is exported by Dialogflow to the configured
+   * Google Cloud Storage destination.
+   * Exposed at the following levels:
+   * - Agent level
+   * - Flow level
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.GcsDestination audio_export_gcs_destination = 2;
+   * </code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.GcsDestinationOrBuilder
+      getAudioExportGcsDestinationOrBuilder();
+
   /**
    *
    *
diff --git a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/AdvancedSettingsProto.java b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/AdvancedSettingsProto.java
index 2f77e01b7510..50d437869973 100644
--- a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/AdvancedSettingsProto.java
+++ b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/AdvancedSettingsProto.java
@@ -47,23 +47,28 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
       "\n:google/cloud/dialogflow/cx/v3beta1/adv"
           + "anced_settings.proto\022\"google.cloud.dialo"
           + "gflow.cx.v3beta1\032\037google/api/field_behav"
-          + "ior.proto\"\315\001\n\020AdvancedSettings\022^\n\020loggin"
-          + "g_settings\030\006 \001(\0132D.google.cloud.dialogfl"
-          + "ow.cx.v3beta1.AdvancedSettings.LoggingSe"
-          + "ttings\032Y\n\017LoggingSettings\022\"\n\032enable_stac"
-          + "kdriver_logging\030\002 \001(\010\022\"\n\032enable_interact"
-          + "ion_logging\030\003 \001(\010B\317\001\n&com.google.cloud.d"
-          + "ialogflow.cx.v3beta1B\025AdvancedSettingsPr"
-          + "otoP\001Z6cloud.google.com/go/dialogflow/cx"
-          + "/apiv3beta1/cxpb;cxpb\370\001\001\242\002\002DF\252\002\"Google.C"
-          + "loud.Dialogflow.Cx.V3Beta1\352\002&Google::Clo"
-          + "ud::Dialogflow::CX::V3beta1b\006proto3"
+          + "ior.proto\032,google/cloud/dialogflow/cx/v3"
+          + "beta1/gcs.proto\"\247\002\n\020AdvancedSettings\022X\n\034"
+          + "audio_export_gcs_destination\030\002 \001(\01322.goo"
+          + "gle.cloud.dialogflow.cx.v3beta1.GcsDesti"
+          + "nation\022^\n\020logging_settings\030\006 \001(\0132D.googl"
+          + "e.cloud.dialogflow.cx.v3beta1.AdvancedSe"
+          + "ttings.LoggingSettings\032Y\n\017LoggingSetting"
+          + "s\022\"\n\032enable_stackdriver_logging\030\002 \001(\010\022\"\n"
+          + "\032enable_interaction_logging\030\003 \001(\010B\317\001\n&co"
+          + "m.google.cloud.dialogflow.cx.v3beta1B\025Ad"
+          + "vancedSettingsProtoP\001Z6cloud.google.com/"
+          + "go/dialogflow/cx/apiv3beta1/cxpb;cxpb\370\001\001"
+          + "\242\002\002DF\252\002\"Google.Cloud.Dialogflow.Cx.V3Bet"
+          + "a1\352\002&Google::Cloud::Dialogflow::CX::V3be"
+          + "ta1b\006proto3"
     };
     descriptor =
         com.google.protobuf.Descriptors.FileDescriptor.internalBuildGeneratedFileFrom(
             descriptorData,
             new com.google.protobuf.Descriptors.FileDescriptor[] {
               com.google.api.FieldBehaviorProto.getDescriptor(),
+              com.google.cloud.dialogflow.cx.v3beta1.GcsProto.getDescriptor(),
             });
     internal_static_google_cloud_dialogflow_cx_v3beta1_AdvancedSettings_descriptor =
         getDescriptor().getMessageTypes().get(0);
@@ -71,7 +76,7 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
         new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
             internal_static_google_cloud_dialogflow_cx_v3beta1_AdvancedSettings_descriptor,
             new java.lang.String[] {
-              "LoggingSettings",
+              "AudioExportGcsDestination", "LoggingSettings",
             });
     internal_static_google_cloud_dialogflow_cx_v3beta1_AdvancedSettings_LoggingSettings_descriptor =
         internal_static_google_cloud_dialogflow_cx_v3beta1_AdvancedSettings_descriptor
@@ -84,6 +89,7 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
               "EnableStackdriverLogging", "EnableInteractionLogging",
             });
     com.google.api.FieldBehaviorProto.getDescriptor();
+    com.google.cloud.dialogflow.cx.v3beta1.GcsProto.getDescriptor();
   }
 
   // @@protoc_insertion_point(outer_class_scope)
diff --git a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/Agent.java b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/Agent.java
index 2eb9450d262a..dfd3e063fba5 100644
--- a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/Agent.java
+++ b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/Agent.java
@@ -685,7 +685,7 @@ public com.google.protobuf.ByteString getSecuritySettingsBytes() {
    * <code>bool enable_stackdriver_logging = 18 [deprecated = true];</code>
    *
    * @deprecated google.cloud.dialogflow.cx.v3beta1.Agent.enable_stackdriver_logging is deprecated.
-   *     See google/cloud/dialogflow/cx/v3beta1/agent.proto;l=255
+   *     See google/cloud/dialogflow/cx/v3beta1/agent.proto;l=257
    * @return The enableStackdriverLogging.
    */
   @java.lang.Override
@@ -786,6 +786,63 @@ public com.google.cloud.dialogflow.cx.v3beta1.AdvancedSettings getAdvancedSettin
         : advancedSettings_;
   }
 
+  public static final int TEXT_TO_SPEECH_SETTINGS_FIELD_NUMBER = 31;
+  private com.google.cloud.dialogflow.cx.v3beta1.TextToSpeechSettings textToSpeechSettings_;
+  /**
+   *
+   *
+   * <pre>
+   * Settings on instructing the speech synthesizer on how to generate the
+   * output audio content.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.TextToSpeechSettings text_to_speech_settings = 31;
+   * </code>
+   *
+   * @return Whether the textToSpeechSettings field is set.
+   */
+  @java.lang.Override
+  public boolean hasTextToSpeechSettings() {
+    return textToSpeechSettings_ != null;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Settings on instructing the speech synthesizer on how to generate the
+   * output audio content.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.TextToSpeechSettings text_to_speech_settings = 31;
+   * </code>
+   *
+   * @return The textToSpeechSettings.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.TextToSpeechSettings getTextToSpeechSettings() {
+    return textToSpeechSettings_ == null
+        ? com.google.cloud.dialogflow.cx.v3beta1.TextToSpeechSettings.getDefaultInstance()
+        : textToSpeechSettings_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Settings on instructing the speech synthesizer on how to generate the
+   * output audio content.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.TextToSpeechSettings text_to_speech_settings = 31;
+   * </code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.TextToSpeechSettingsOrBuilder
+      getTextToSpeechSettingsOrBuilder() {
+    return textToSpeechSettings_ == null
+        ? com.google.cloud.dialogflow.cx.v3beta1.TextToSpeechSettings.getDefaultInstance()
+        : textToSpeechSettings_;
+  }
+
   private byte memoizedIsInitialized = -1;
 
   @java.lang.Override
@@ -843,6 +900,9 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (locked_ != false) {
       output.writeBool(27, locked_);
     }
+    if (textToSpeechSettings_ != null) {
+      output.writeMessage(31, getTextToSpeechSettings());
+    }
     getUnknownFields().writeTo(output);
   }
 
@@ -900,6 +960,10 @@ public int getSerializedSize() {
     if (locked_ != false) {
       size += com.google.protobuf.CodedOutputStream.computeBoolSize(27, locked_);
     }
+    if (textToSpeechSettings_ != null) {
+      size +=
+          com.google.protobuf.CodedOutputStream.computeMessageSize(31, getTextToSpeechSettings());
+    }
     size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
@@ -937,6 +1001,10 @@ public boolean equals(final java.lang.Object obj) {
     if (hasAdvancedSettings()) {
       if (!getAdvancedSettings().equals(other.getAdvancedSettings())) return false;
     }
+    if (hasTextToSpeechSettings() != other.hasTextToSpeechSettings()) return false;
+    if (hasTextToSpeechSettings()) {
+      if (!getTextToSpeechSettings().equals(other.getTextToSpeechSettings())) return false;
+    }
     if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
@@ -982,6 +1050,10 @@ public int hashCode() {
       hash = (37 * hash) + ADVANCED_SETTINGS_FIELD_NUMBER;
       hash = (53 * hash) + getAdvancedSettings().hashCode();
     }
+    if (hasTextToSpeechSettings()) {
+      hash = (37 * hash) + TEXT_TO_SPEECH_SETTINGS_FIELD_NUMBER;
+      hash = (53 * hash) + getTextToSpeechSettings().hashCode();
+    }
     hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
@@ -1154,6 +1226,11 @@ public Builder clear() {
         advancedSettingsBuilder_.dispose();
         advancedSettingsBuilder_ = null;
       }
+      textToSpeechSettings_ = null;
+      if (textToSpeechSettingsBuilder_ != null) {
+        textToSpeechSettingsBuilder_.dispose();
+        textToSpeechSettingsBuilder_ = null;
+      }
       return this;
     }
 
@@ -1242,6 +1319,12 @@ private void buildPartial0(com.google.cloud.dialogflow.cx.v3beta1.Agent result)
         result.advancedSettings_ =
             advancedSettingsBuilder_ == null ? advancedSettings_ : advancedSettingsBuilder_.build();
       }
+      if (((from_bitField0_ & 0x00004000) != 0)) {
+        result.textToSpeechSettings_ =
+            textToSpeechSettingsBuilder_ == null
+                ? textToSpeechSettings_
+                : textToSpeechSettingsBuilder_.build();
+      }
     }
 
     @java.lang.Override
@@ -1354,6 +1437,9 @@ public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.Agent other) {
       if (other.hasAdvancedSettings()) {
         mergeAdvancedSettings(other.getAdvancedSettings());
       }
+      if (other.hasTextToSpeechSettings()) {
+        mergeTextToSpeechSettings(other.getTextToSpeechSettings());
+      }
       this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
@@ -1467,6 +1553,13 @@ public Builder mergeFrom(
                 bitField0_ |= 0x00001000;
                 break;
               } // case 216
+            case 250:
+              {
+                input.readMessage(
+                    getTextToSpeechSettingsFieldBuilder().getBuilder(), extensionRegistry);
+                bitField0_ |= 0x00004000;
+                break;
+              } // case 250
             default:
               {
                 if (!super.parseUnknownField(input, extensionRegistry, tag)) {
@@ -2865,7 +2958,7 @@ public Builder setSecuritySettingsBytes(com.google.protobuf.ByteString value) {
      * <code>bool enable_stackdriver_logging = 18 [deprecated = true];</code>
      *
      * @deprecated google.cloud.dialogflow.cx.v3beta1.Agent.enable_stackdriver_logging is
-     *     deprecated. See google/cloud/dialogflow/cx/v3beta1/agent.proto;l=255
+     *     deprecated. See google/cloud/dialogflow/cx/v3beta1/agent.proto;l=257
      * @return The enableStackdriverLogging.
      */
     @java.lang.Override
@@ -2886,7 +2979,7 @@ public boolean getEnableStackdriverLogging() {
      * <code>bool enable_stackdriver_logging = 18 [deprecated = true];</code>
      *
      * @deprecated google.cloud.dialogflow.cx.v3beta1.Agent.enable_stackdriver_logging is
-     *     deprecated. See google/cloud/dialogflow/cx/v3beta1/agent.proto;l=255
+     *     deprecated. See google/cloud/dialogflow/cx/v3beta1/agent.proto;l=257
      * @param value The enableStackdriverLogging to set.
      * @return This builder for chaining.
      */
@@ -2911,7 +3004,7 @@ public Builder setEnableStackdriverLogging(boolean value) {
      * <code>bool enable_stackdriver_logging = 18 [deprecated = true];</code>
      *
      * @deprecated google.cloud.dialogflow.cx.v3beta1.Agent.enable_stackdriver_logging is
-     *     deprecated. See google/cloud/dialogflow/cx/v3beta1/agent.proto;l=255
+     *     deprecated. See google/cloud/dialogflow/cx/v3beta1/agent.proto;l=257
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -3232,6 +3325,214 @@ public Builder clearAdvancedSettings() {
       return advancedSettingsBuilder_;
     }
 
+    private com.google.cloud.dialogflow.cx.v3beta1.TextToSpeechSettings textToSpeechSettings_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.TextToSpeechSettings,
+            com.google.cloud.dialogflow.cx.v3beta1.TextToSpeechSettings.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.TextToSpeechSettingsOrBuilder>
+        textToSpeechSettingsBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * Settings on instructing the speech synthesizer on how to generate the
+     * output audio content.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.TextToSpeechSettings text_to_speech_settings = 31;
+     * </code>
+     *
+     * @return Whether the textToSpeechSettings field is set.
+     */
+    public boolean hasTextToSpeechSettings() {
+      return ((bitField0_ & 0x00004000) != 0);
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Settings on instructing the speech synthesizer on how to generate the
+     * output audio content.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.TextToSpeechSettings text_to_speech_settings = 31;
+     * </code>
+     *
+     * @return The textToSpeechSettings.
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.TextToSpeechSettings getTextToSpeechSettings() {
+      if (textToSpeechSettingsBuilder_ == null) {
+        return textToSpeechSettings_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.TextToSpeechSettings.getDefaultInstance()
+            : textToSpeechSettings_;
+      } else {
+        return textToSpeechSettingsBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Settings on instructing the speech synthesizer on how to generate the
+     * output audio content.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.TextToSpeechSettings text_to_speech_settings = 31;
+     * </code>
+     */
+    public Builder setTextToSpeechSettings(
+        com.google.cloud.dialogflow.cx.v3beta1.TextToSpeechSettings value) {
+      if (textToSpeechSettingsBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        textToSpeechSettings_ = value;
+      } else {
+        textToSpeechSettingsBuilder_.setMessage(value);
+      }
+      bitField0_ |= 0x00004000;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Settings on instructing the speech synthesizer on how to generate the
+     * output audio content.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.TextToSpeechSettings text_to_speech_settings = 31;
+     * </code>
+     */
+    public Builder setTextToSpeechSettings(
+        com.google.cloud.dialogflow.cx.v3beta1.TextToSpeechSettings.Builder builderForValue) {
+      if (textToSpeechSettingsBuilder_ == null) {
+        textToSpeechSettings_ = builderForValue.build();
+      } else {
+        textToSpeechSettingsBuilder_.setMessage(builderForValue.build());
+      }
+      bitField0_ |= 0x00004000;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Settings on instructing the speech synthesizer on how to generate the
+     * output audio content.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.TextToSpeechSettings text_to_speech_settings = 31;
+     * </code>
+     */
+    public Builder mergeTextToSpeechSettings(
+        com.google.cloud.dialogflow.cx.v3beta1.TextToSpeechSettings value) {
+      if (textToSpeechSettingsBuilder_ == null) {
+        if (((bitField0_ & 0x00004000) != 0)
+            && textToSpeechSettings_ != null
+            && textToSpeechSettings_
+                != com.google.cloud.dialogflow.cx.v3beta1.TextToSpeechSettings
+                    .getDefaultInstance()) {
+          getTextToSpeechSettingsBuilder().mergeFrom(value);
+        } else {
+          textToSpeechSettings_ = value;
+        }
+      } else {
+        textToSpeechSettingsBuilder_.mergeFrom(value);
+      }
+      bitField0_ |= 0x00004000;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Settings on instructing the speech synthesizer on how to generate the
+     * output audio content.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.TextToSpeechSettings text_to_speech_settings = 31;
+     * </code>
+     */
+    public Builder clearTextToSpeechSettings() {
+      bitField0_ = (bitField0_ & ~0x00004000);
+      textToSpeechSettings_ = null;
+      if (textToSpeechSettingsBuilder_ != null) {
+        textToSpeechSettingsBuilder_.dispose();
+        textToSpeechSettingsBuilder_ = null;
+      }
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Settings on instructing the speech synthesizer on how to generate the
+     * output audio content.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.TextToSpeechSettings text_to_speech_settings = 31;
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.TextToSpeechSettings.Builder
+        getTextToSpeechSettingsBuilder() {
+      bitField0_ |= 0x00004000;
+      onChanged();
+      return getTextToSpeechSettingsFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Settings on instructing the speech synthesizer on how to generate the
+     * output audio content.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.TextToSpeechSettings text_to_speech_settings = 31;
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.TextToSpeechSettingsOrBuilder
+        getTextToSpeechSettingsOrBuilder() {
+      if (textToSpeechSettingsBuilder_ != null) {
+        return textToSpeechSettingsBuilder_.getMessageOrBuilder();
+      } else {
+        return textToSpeechSettings_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.TextToSpeechSettings.getDefaultInstance()
+            : textToSpeechSettings_;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Settings on instructing the speech synthesizer on how to generate the
+     * output audio content.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.TextToSpeechSettings text_to_speech_settings = 31;
+     * </code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.TextToSpeechSettings,
+            com.google.cloud.dialogflow.cx.v3beta1.TextToSpeechSettings.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.TextToSpeechSettingsOrBuilder>
+        getTextToSpeechSettingsFieldBuilder() {
+      if (textToSpeechSettingsBuilder_ == null) {
+        textToSpeechSettingsBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.TextToSpeechSettings,
+                com.google.cloud.dialogflow.cx.v3beta1.TextToSpeechSettings.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.TextToSpeechSettingsOrBuilder>(
+                getTextToSpeechSettings(), getParentForChildren(), isClean());
+        textToSpeechSettings_ = null;
+      }
+      return textToSpeechSettingsBuilder_;
+    }
+
     @java.lang.Override
     public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
       return super.setUnknownFields(unknownFields);
diff --git a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/AgentOrBuilder.java b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/AgentOrBuilder.java
index 0e3d0608d294..6882ad971c67 100644
--- a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/AgentOrBuilder.java
+++ b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/AgentOrBuilder.java
@@ -386,7 +386,7 @@ public interface AgentOrBuilder
    * <code>bool enable_stackdriver_logging = 18 [deprecated = true];</code>
    *
    * @deprecated google.cloud.dialogflow.cx.v3beta1.Agent.enable_stackdriver_logging is deprecated.
-   *     See google/cloud/dialogflow/cx/v3beta1/agent.proto;l=255
+   *     See google/cloud/dialogflow/cx/v3beta1/agent.proto;l=257
    * @return The enableStackdriverLogging.
    */
   @java.lang.Deprecated
@@ -457,4 +457,46 @@ public interface AgentOrBuilder
    * <code>.google.cloud.dialogflow.cx.v3beta1.AdvancedSettings advanced_settings = 22;</code>
    */
   com.google.cloud.dialogflow.cx.v3beta1.AdvancedSettingsOrBuilder getAdvancedSettingsOrBuilder();
+
+  /**
+   *
+   *
+   * <pre>
+   * Settings on instructing the speech synthesizer on how to generate the
+   * output audio content.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.TextToSpeechSettings text_to_speech_settings = 31;
+   * </code>
+   *
+   * @return Whether the textToSpeechSettings field is set.
+   */
+  boolean hasTextToSpeechSettings();
+  /**
+   *
+   *
+   * <pre>
+   * Settings on instructing the speech synthesizer on how to generate the
+   * output audio content.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.TextToSpeechSettings text_to_speech_settings = 31;
+   * </code>
+   *
+   * @return The textToSpeechSettings.
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.TextToSpeechSettings getTextToSpeechSettings();
+  /**
+   *
+   *
+   * <pre>
+   * Settings on instructing the speech synthesizer on how to generate the
+   * output audio content.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.TextToSpeechSettings text_to_speech_settings = 31;
+   * </code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.TextToSpeechSettingsOrBuilder
+      getTextToSpeechSettingsOrBuilder();
 }
diff --git a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/AgentProto.java b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/AgentProto.java
index 3aa91e4a1562..937b9f5f8b7b 100644
--- a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/AgentProto.java
+++ b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/AgentProto.java
@@ -98,129 +98,134 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
           + "le/api/client.proto\032\037google/api/field_be"
           + "havior.proto\032\031google/api/resource.proto\032"
           + ":google/cloud/dialogflow/cx/v3beta1/adva"
-          + "nced_settings.proto\032-google/cloud/dialog"
-          + "flow/cx/v3beta1/flow.proto\032#google/longr"
-          + "unning/operations.proto\032\033google/protobuf"
-          + "/empty.proto\032 google/protobuf/field_mask"
-          + ".proto\"8\n\024SpeechToTextSettings\022 \n\030enable"
-          + "_speech_adaptation\030\001 \001(\010\"\245\005\n\005Agent\022\014\n\004na"
-          + "me\030\001 \001(\t\022\031\n\014display_name\030\002 \001(\tB\003\340A\002\022%\n\025d"
-          + "efault_language_code\030\003 \001(\tB\006\340A\002\340A\005\022 \n\030su"
-          + "pported_language_codes\030\004 \003(\t\022\026\n\ttime_zon"
-          + "e\030\005 \001(\tB\003\340A\002\022\023\n\013description\030\006 \001(\t\022\022\n\nava"
-          + "tar_uri\030\007 \001(\t\022Y\n\027speech_to_text_settings"
-          + "\030\r \001(\01328.google.cloud.dialogflow.cx.v3be"
-          + "ta1.SpeechToTextSettings\022:\n\nstart_flow\030\020"
-          + " \001(\tB&\340A\005\372A \n\036dialogflow.googleapis.com/"
-          + "Flow\022J\n\021security_settings\030\021 \001(\tB/\372A,\n*di"
-          + "alogflow.googleapis.com/SecuritySettings"
-          + "\022&\n\032enable_stackdriver_logging\030\022 \001(\010B\002\030\001"
-          + "\022\037\n\027enable_spell_correction\030\024 \001(\010\022\016\n\006loc"
-          + "ked\030\033 \001(\010\022O\n\021advanced_settings\030\026 \001(\01324.g"
-          + "oogle.cloud.dialogflow.cx.v3beta1.Advanc"
-          + "edSettings:\\\352AY\n\037dialogflow.googleapis.c"
-          + "om/Agent\0226projects/{project}/locations/{"
-          + "location}/agents/{agent}\"s\n\021ListAgentsRe"
-          + "quest\0227\n\006parent\030\001 \001(\tB\'\340A\002\372A!\022\037dialogflo"
-          + "w.googleapis.com/Agent\022\021\n\tpage_size\030\002 \001("
-          + "\005\022\022\n\npage_token\030\003 \001(\t\"h\n\022ListAgentsRespo"
-          + "nse\0229\n\006agents\030\001 \003(\0132).google.cloud.dialo"
-          + "gflow.cx.v3beta1.Agent\022\027\n\017next_page_toke"
-          + "n\030\002 \001(\t\"H\n\017GetAgentRequest\0225\n\004name\030\001 \001(\t"
-          + "B\'\340A\002\372A!\n\037dialogflow.googleapis.com/Agen"
-          + "t\"\214\001\n\022CreateAgentRequest\0227\n\006parent\030\001 \001(\t"
-          + "B\'\340A\002\372A!\022\037dialogflow.googleapis.com/Agen"
-          + "t\022=\n\005agent\030\002 \001(\0132).google.cloud.dialogfl"
-          + "ow.cx.v3beta1.AgentB\003\340A\002\"\204\001\n\022UpdateAgent"
-          + "Request\022=\n\005agent\030\001 \001(\0132).google.cloud.di"
-          + "alogflow.cx.v3beta1.AgentB\003\340A\002\022/\n\013update"
-          + "_mask\030\002 \001(\0132\032.google.protobuf.FieldMask\""
-          + "K\n\022DeleteAgentRequest\0225\n\004name\030\001 \001(\tB\'\340A\002"
-          + "\372A!\n\037dialogflow.googleapis.com/Agent\"\313\002\n"
-          + "\022ExportAgentRequest\0225\n\004name\030\001 \001(\tB\'\340A\002\372A"
-          + "!\n\037dialogflow.googleapis.com/Agent\022\026\n\tag"
-          + "ent_uri\030\002 \001(\tB\003\340A\001\022[\n\013data_format\030\003 \001(\0162"
-          + "A.google.cloud.dialogflow.cx.v3beta1.Exp"
-          + "ortAgentRequest.DataFormatB\003\340A\001\022B\n\013envir"
-          + "onment\030\005 \001(\tB-\340A\001\372A\'\n%dialogflow.googlea"
-          + "pis.com/Environment\"E\n\nDataFormat\022\033\n\027DAT"
-          + "A_FORMAT_UNSPECIFIED\020\000\022\010\n\004BLOB\020\001\022\020\n\014JSON"
-          + "_PACKAGE\020\004\"L\n\023ExportAgentResponse\022\023\n\tage"
-          + "nt_uri\030\001 \001(\tH\000\022\027\n\ragent_content\030\002 \001(\014H\000B"
-          + "\007\n\005agent\"\253\002\n\023RestoreAgentRequest\0225\n\004name"
-          + "\030\001 \001(\tB\'\340A\002\372A!\n\037dialogflow.googleapis.co"
-          + "m/Agent\022\023\n\tagent_uri\030\002 \001(\tH\000\022\027\n\ragent_co"
-          + "ntent\030\003 \001(\014H\000\022]\n\016restore_option\030\005 \001(\0162E."
-          + "google.cloud.dialogflow.cx.v3beta1.Resto"
-          + "reAgentRequest.RestoreOption\"G\n\rRestoreO"
-          + "ption\022\036\n\032RESTORE_OPTION_UNSPECIFIED\020\000\022\010\n"
-          + "\004KEEP\020\001\022\014\n\010FALLBACK\020\002B\007\n\005agent\"d\n\024Valida"
-          + "teAgentRequest\0225\n\004name\030\001 \001(\tB\'\340A\002\372A!\n\037di"
-          + "alogflow.googleapis.com/Agent\022\025\n\rlanguag"
-          + "e_code\030\002 \001(\t\"\177\n\037GetAgentValidationResult"
-          + "Request\022E\n\004name\030\001 \001(\tB7\340A\002\372A1\n/dialogflo"
-          + "w.googleapis.com/AgentValidationResult\022\025"
-          + "\n\rlanguage_code\030\002 \001(\t\"\377\001\n\025AgentValidatio"
-          + "nResult\022\014\n\004name\030\001 \001(\t\022Y\n\027flow_validation"
-          + "_results\030\002 \003(\01328.google.cloud.dialogflow"
-          + ".cx.v3beta1.FlowValidationResult:}\352Az\n/d"
-          + "ialogflow.googleapis.com/AgentValidation"
-          + "Result\022Gprojects/{project}/locations/{lo"
-          + "cation}/agents/{agent}/validationResult2"
-          + "\221\017\n\006Agents\022\275\001\n\nListAgents\0225.google.cloud"
-          + ".dialogflow.cx.v3beta1.ListAgentsRequest"
-          + "\0326.google.cloud.dialogflow.cx.v3beta1.Li"
-          + "stAgentsResponse\"@\202\323\344\223\0021\022//v3beta1/{pare"
-          + "nt=projects/*/locations/*}/agents\332A\006pare"
-          + "nt\022\252\001\n\010GetAgent\0223.google.cloud.dialogflo"
-          + "w.cx.v3beta1.GetAgentRequest\032).google.cl"
-          + "oud.dialogflow.cx.v3beta1.Agent\">\202\323\344\223\0021\022"
-          + "//v3beta1/{name=projects/*/locations/*/a"
-          + "gents/*}\332A\004name\022\277\001\n\013CreateAgent\0226.google"
-          + ".cloud.dialogflow.cx.v3beta1.CreateAgent"
-          + "Request\032).google.cloud.dialogflow.cx.v3b"
-          + "eta1.Agent\"M\202\323\344\223\0028\"//v3beta1/{parent=pro"
-          + "jects/*/locations/*}/agents:\005agent\332A\014par"
-          + "ent,agent\022\312\001\n\013UpdateAgent\0226.google.cloud"
-          + ".dialogflow.cx.v3beta1.UpdateAgentReques"
-          + "t\032).google.cloud.dialogflow.cx.v3beta1.A"
-          + "gent\"X\202\323\344\223\002>25/v3beta1/{agent.name=proje"
-          + "cts/*/locations/*/agents/*}:\005agent\332A\021age"
-          + "nt,update_mask\022\235\001\n\013DeleteAgent\0226.google."
-          + "cloud.dialogflow.cx.v3beta1.DeleteAgentR"
-          + "equest\032\026.google.protobuf.Empty\">\202\323\344\223\0021*/"
-          + "/v3beta1/{name=projects/*/locations/*/ag"
-          + "ents/*}\332A\004name\022\327\001\n\013ExportAgent\0226.google."
-          + "cloud.dialogflow.cx.v3beta1.ExportAgentR"
-          + "equest\032\035.google.longrunning.Operation\"q\202"
-          + "\323\344\223\002;\"6/v3beta1/{name=projects/*/locatio"
-          + "ns/*/agents/*}:export:\001*\312A-\n\023ExportAgent"
-          + "Response\022\026google.protobuf.Struct\022\334\001\n\014Res"
-          + "toreAgent\0227.google.cloud.dialogflow.cx.v"
-          + "3beta1.RestoreAgentRequest\032\035.google.long"
-          + "running.Operation\"t\202\323\344\223\002<\"7/v3beta1/{nam"
-          + "e=projects/*/locations/*/agents/*}:resto"
-          + "re:\001*\312A/\n\025google.protobuf.Empty\022\026google."
-          + "protobuf.Struct\022\311\001\n\rValidateAgent\0228.goog"
-          + "le.cloud.dialogflow.cx.v3beta1.ValidateA"
-          + "gentRequest\0329.google.cloud.dialogflow.cx"
-          + ".v3beta1.AgentValidationResult\"C\202\323\344\223\002=\"8"
-          + "/v3beta1/{name=projects/*/locations/*/ag"
-          + "ents/*}:validate:\001*\022\353\001\n\030GetAgentValidati"
-          + "onResult\022C.google.cloud.dialogflow.cx.v3"
-          + "beta1.GetAgentValidationResultRequest\0329."
-          + "google.cloud.dialogflow.cx.v3beta1.Agent"
-          + "ValidationResult\"O\202\323\344\223\002B\022@/v3beta1/{name"
-          + "=projects/*/locations/*/agents/*/validat"
-          + "ionResult}\332A\004name\032x\312A\031dialogflow.googlea"
-          + "pis.com\322AYhttps://www.googleapis.com/aut"
-          + "h/cloud-platform,https://www.googleapis."
-          + "com/auth/dialogflowB\304\001\n&com.google.cloud"
-          + ".dialogflow.cx.v3beta1B\nAgentProtoP\001Z6cl"
-          + "oud.google.com/go/dialogflow/cx/apiv3bet"
-          + "a1/cxpb;cxpb\370\001\001\242\002\002DF\252\002\"Google.Cloud.Dial"
-          + "ogflow.Cx.V3Beta1\352\002&Google::Cloud::Dialo"
-          + "gflow::CX::V3beta1b\006proto3"
+          + "nced_settings.proto\0325google/cloud/dialog"
+          + "flow/cx/v3beta1/audio_config.proto\032-goog"
+          + "le/cloud/dialogflow/cx/v3beta1/flow.prot"
+          + "o\032#google/longrunning/operations.proto\032\033"
+          + "google/protobuf/empty.proto\032 google/prot"
+          + "obuf/field_mask.proto\032\034google/protobuf/s"
+          + "truct.proto\"8\n\024SpeechToTextSettings\022 \n\030e"
+          + "nable_speech_adaptation\030\001 \001(\010\"\200\006\n\005Agent\022"
+          + "\014\n\004name\030\001 \001(\t\022\031\n\014display_name\030\002 \001(\tB\003\340A\002"
+          + "\022%\n\025default_language_code\030\003 \001(\tB\006\340A\002\340A\005\022"
+          + " \n\030supported_language_codes\030\004 \003(\t\022\026\n\ttim"
+          + "e_zone\030\005 \001(\tB\003\340A\002\022\023\n\013description\030\006 \001(\t\022\022"
+          + "\n\navatar_uri\030\007 \001(\t\022Y\n\027speech_to_text_set"
+          + "tings\030\r \001(\01328.google.cloud.dialogflow.cx"
+          + ".v3beta1.SpeechToTextSettings\022:\n\nstart_f"
+          + "low\030\020 \001(\tB&\340A\005\372A \n\036dialogflow.googleapis"
+          + ".com/Flow\022J\n\021security_settings\030\021 \001(\tB/\372A"
+          + ",\n*dialogflow.googleapis.com/SecuritySet"
+          + "tings\022&\n\032enable_stackdriver_logging\030\022 \001("
+          + "\010B\002\030\001\022\037\n\027enable_spell_correction\030\024 \001(\010\022\016"
+          + "\n\006locked\030\033 \001(\010\022O\n\021advanced_settings\030\026 \001("
+          + "\01324.google.cloud.dialogflow.cx.v3beta1.A"
+          + "dvancedSettings\022Y\n\027text_to_speech_settin"
+          + "gs\030\037 \001(\01328.google.cloud.dialogflow.cx.v3"
+          + "beta1.TextToSpeechSettings:\\\352AY\n\037dialogf"
+          + "low.googleapis.com/Agent\0226projects/{proj"
+          + "ect}/locations/{location}/agents/{agent}"
+          + "\"s\n\021ListAgentsRequest\0227\n\006parent\030\001 \001(\tB\'\340"
+          + "A\002\372A!\022\037dialogflow.googleapis.com/Agent\022\021"
+          + "\n\tpage_size\030\002 \001(\005\022\022\n\npage_token\030\003 \001(\t\"h\n"
+          + "\022ListAgentsResponse\0229\n\006agents\030\001 \003(\0132).go"
+          + "ogle.cloud.dialogflow.cx.v3beta1.Agent\022\027"
+          + "\n\017next_page_token\030\002 \001(\t\"H\n\017GetAgentReque"
+          + "st\0225\n\004name\030\001 \001(\tB\'\340A\002\372A!\n\037dialogflow.goo"
+          + "gleapis.com/Agent\"\214\001\n\022CreateAgentRequest"
+          + "\0227\n\006parent\030\001 \001(\tB\'\340A\002\372A!\022\037dialogflow.goo"
+          + "gleapis.com/Agent\022=\n\005agent\030\002 \001(\0132).googl"
+          + "e.cloud.dialogflow.cx.v3beta1.AgentB\003\340A\002"
+          + "\"\204\001\n\022UpdateAgentRequest\022=\n\005agent\030\001 \001(\0132)"
+          + ".google.cloud.dialogflow.cx.v3beta1.Agen"
+          + "tB\003\340A\002\022/\n\013update_mask\030\002 \001(\0132\032.google.pro"
+          + "tobuf.FieldMask\"K\n\022DeleteAgentRequest\0225\n"
+          + "\004name\030\001 \001(\tB\'\340A\002\372A!\n\037dialogflow.googleap"
+          + "is.com/Agent\"\313\002\n\022ExportAgentRequest\0225\n\004n"
+          + "ame\030\001 \001(\tB\'\340A\002\372A!\n\037dialogflow.googleapis"
+          + ".com/Agent\022\026\n\tagent_uri\030\002 \001(\tB\003\340A\001\022[\n\013da"
+          + "ta_format\030\003 \001(\0162A.google.cloud.dialogflo"
+          + "w.cx.v3beta1.ExportAgentRequest.DataForm"
+          + "atB\003\340A\001\022B\n\013environment\030\005 \001(\tB-\340A\001\372A\'\n%di"
+          + "alogflow.googleapis.com/Environment\"E\n\nD"
+          + "ataFormat\022\033\n\027DATA_FORMAT_UNSPECIFIED\020\000\022\010"
+          + "\n\004BLOB\020\001\022\020\n\014JSON_PACKAGE\020\004\"L\n\023ExportAgen"
+          + "tResponse\022\023\n\tagent_uri\030\001 \001(\tH\000\022\027\n\ragent_"
+          + "content\030\002 \001(\014H\000B\007\n\005agent\"\253\002\n\023RestoreAgen"
+          + "tRequest\0225\n\004name\030\001 \001(\tB\'\340A\002\372A!\n\037dialogfl"
+          + "ow.googleapis.com/Agent\022\023\n\tagent_uri\030\002 \001"
+          + "(\tH\000\022\027\n\ragent_content\030\003 \001(\014H\000\022]\n\016restore"
+          + "_option\030\005 \001(\0162E.google.cloud.dialogflow."
+          + "cx.v3beta1.RestoreAgentRequest.RestoreOp"
+          + "tion\"G\n\rRestoreOption\022\036\n\032RESTORE_OPTION_"
+          + "UNSPECIFIED\020\000\022\010\n\004KEEP\020\001\022\014\n\010FALLBACK\020\002B\007\n"
+          + "\005agent\"d\n\024ValidateAgentRequest\0225\n\004name\030\001"
+          + " \001(\tB\'\340A\002\372A!\n\037dialogflow.googleapis.com/"
+          + "Agent\022\025\n\rlanguage_code\030\002 \001(\t\"\177\n\037GetAgent"
+          + "ValidationResultRequest\022E\n\004name\030\001 \001(\tB7\340"
+          + "A\002\372A1\n/dialogflow.googleapis.com/AgentVa"
+          + "lidationResult\022\025\n\rlanguage_code\030\002 \001(\t\"\377\001"
+          + "\n\025AgentValidationResult\022\014\n\004name\030\001 \001(\t\022Y\n"
+          + "\027flow_validation_results\030\002 \003(\01328.google."
+          + "cloud.dialogflow.cx.v3beta1.FlowValidati"
+          + "onResult:}\352Az\n/dialogflow.googleapis.com"
+          + "/AgentValidationResult\022Gprojects/{projec"
+          + "t}/locations/{location}/agents/{agent}/v"
+          + "alidationResult2\221\017\n\006Agents\022\275\001\n\nListAgent"
+          + "s\0225.google.cloud.dialogflow.cx.v3beta1.L"
+          + "istAgentsRequest\0326.google.cloud.dialogfl"
+          + "ow.cx.v3beta1.ListAgentsResponse\"@\202\323\344\223\0021"
+          + "\022//v3beta1/{parent=projects/*/locations/"
+          + "*}/agents\332A\006parent\022\252\001\n\010GetAgent\0223.google"
+          + ".cloud.dialogflow.cx.v3beta1.GetAgentReq"
+          + "uest\032).google.cloud.dialogflow.cx.v3beta"
+          + "1.Agent\">\202\323\344\223\0021\022//v3beta1/{name=projects"
+          + "/*/locations/*/agents/*}\332A\004name\022\277\001\n\013Crea"
+          + "teAgent\0226.google.cloud.dialogflow.cx.v3b"
+          + "eta1.CreateAgentRequest\032).google.cloud.d"
+          + "ialogflow.cx.v3beta1.Agent\"M\202\323\344\223\0028\"//v3b"
+          + "eta1/{parent=projects/*/locations/*}/age"
+          + "nts:\005agent\332A\014parent,agent\022\312\001\n\013UpdateAgen"
+          + "t\0226.google.cloud.dialogflow.cx.v3beta1.U"
+          + "pdateAgentRequest\032).google.cloud.dialogf"
+          + "low.cx.v3beta1.Agent\"X\202\323\344\223\002>25/v3beta1/{"
+          + "agent.name=projects/*/locations/*/agents"
+          + "/*}:\005agent\332A\021agent,update_mask\022\235\001\n\013Delet"
+          + "eAgent\0226.google.cloud.dialogflow.cx.v3be"
+          + "ta1.DeleteAgentRequest\032\026.google.protobuf"
+          + ".Empty\">\202\323\344\223\0021*//v3beta1/{name=projects/"
+          + "*/locations/*/agents/*}\332A\004name\022\327\001\n\013Expor"
+          + "tAgent\0226.google.cloud.dialogflow.cx.v3be"
+          + "ta1.ExportAgentRequest\032\035.google.longrunn"
+          + "ing.Operation\"q\202\323\344\223\002;\"6/v3beta1/{name=pr"
+          + "ojects/*/locations/*/agents/*}:export:\001*"
+          + "\312A-\n\023ExportAgentResponse\022\026google.protobu"
+          + "f.Struct\022\334\001\n\014RestoreAgent\0227.google.cloud"
+          + ".dialogflow.cx.v3beta1.RestoreAgentReque"
+          + "st\032\035.google.longrunning.Operation\"t\202\323\344\223\002"
+          + "<\"7/v3beta1/{name=projects/*/locations/*"
+          + "/agents/*}:restore:\001*\312A/\n\025google.protobu"
+          + "f.Empty\022\026google.protobuf.Struct\022\311\001\n\rVali"
+          + "dateAgent\0228.google.cloud.dialogflow.cx.v"
+          + "3beta1.ValidateAgentRequest\0329.google.clo"
+          + "ud.dialogflow.cx.v3beta1.AgentValidation"
+          + "Result\"C\202\323\344\223\002=\"8/v3beta1/{name=projects/"
+          + "*/locations/*/agents/*}:validate:\001*\022\353\001\n\030"
+          + "GetAgentValidationResult\022C.google.cloud."
+          + "dialogflow.cx.v3beta1.GetAgentValidation"
+          + "ResultRequest\0329.google.cloud.dialogflow."
+          + "cx.v3beta1.AgentValidationResult\"O\202\323\344\223\002B"
+          + "\022@/v3beta1/{name=projects/*/locations/*/"
+          + "agents/*/validationResult}\332A\004name\032x\312A\031di"
+          + "alogflow.googleapis.com\322AYhttps://www.go"
+          + "ogleapis.com/auth/cloud-platform,https:/"
+          + "/www.googleapis.com/auth/dialogflowB\304\001\n&"
+          + "com.google.cloud.dialogflow.cx.v3beta1B\n"
+          + "AgentProtoP\001Z6cloud.google.com/go/dialog"
+          + "flow/cx/apiv3beta1/cxpb;cxpb\370\001\001\242\002\002DF\252\002\"G"
+          + "oogle.Cloud.Dialogflow.Cx.V3Beta1\352\002&Goog"
+          + "le::Cloud::Dialogflow::CX::V3beta1b\006prot"
+          + "o3"
     };
     descriptor =
         com.google.protobuf.Descriptors.FileDescriptor.internalBuildGeneratedFileFrom(
@@ -231,10 +236,12 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
               com.google.api.FieldBehaviorProto.getDescriptor(),
               com.google.api.ResourceProto.getDescriptor(),
               com.google.cloud.dialogflow.cx.v3beta1.AdvancedSettingsProto.getDescriptor(),
+              com.google.cloud.dialogflow.cx.v3beta1.AudioConfigProto.getDescriptor(),
               com.google.cloud.dialogflow.cx.v3beta1.FlowProto.getDescriptor(),
               com.google.longrunning.OperationsProto.getDescriptor(),
               com.google.protobuf.EmptyProto.getDescriptor(),
               com.google.protobuf.FieldMaskProto.getDescriptor(),
+              com.google.protobuf.StructProto.getDescriptor(),
             });
     internal_static_google_cloud_dialogflow_cx_v3beta1_SpeechToTextSettings_descriptor =
         getDescriptor().getMessageTypes().get(0);
@@ -264,6 +271,7 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
               "EnableSpellCorrection",
               "Locked",
               "AdvancedSettings",
+              "TextToSpeechSettings",
             });
     internal_static_google_cloud_dialogflow_cx_v3beta1_ListAgentsRequest_descriptor =
         getDescriptor().getMessageTypes().get(2);
@@ -378,10 +386,12 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
     com.google.api.FieldBehaviorProto.getDescriptor();
     com.google.api.ResourceProto.getDescriptor();
     com.google.cloud.dialogflow.cx.v3beta1.AdvancedSettingsProto.getDescriptor();
+    com.google.cloud.dialogflow.cx.v3beta1.AudioConfigProto.getDescriptor();
     com.google.cloud.dialogflow.cx.v3beta1.FlowProto.getDescriptor();
     com.google.longrunning.OperationsProto.getDescriptor();
     com.google.protobuf.EmptyProto.getDescriptor();
     com.google.protobuf.FieldMaskProto.getDescriptor();
+    com.google.protobuf.StructProto.getDescriptor();
   }
 
   // @@protoc_insertion_point(outer_class_scope)
diff --git a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/AudioConfigProto.java b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/AudioConfigProto.java
index 729e6d7429b3..5d6fd5842e7d 100644
--- a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/AudioConfigProto.java
+++ b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/AudioConfigProto.java
@@ -47,6 +47,14 @@ public static void registerAllExtensions(com.google.protobuf.ExtensionRegistry r
       internal_static_google_cloud_dialogflow_cx_v3beta1_OutputAudioConfig_descriptor;
   static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
       internal_static_google_cloud_dialogflow_cx_v3beta1_OutputAudioConfig_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_TextToSpeechSettings_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_TextToSpeechSettings_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_TextToSpeechSettings_SynthesizeSpeechConfigsEntry_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_TextToSpeechSettings_SynthesizeSpeechConfigsEntry_fieldAccessorTable;
 
   public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
     return descriptor;
@@ -84,34 +92,41 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
           + "ow.cx.v3beta1.OutputAudioEncodingB\003\340A\002\022\031"
           + "\n\021sample_rate_hertz\030\002 \001(\005\022\\\n\030synthesize_"
           + "speech_config\030\003 \001(\0132:.google.cloud.dialo"
-          + "gflow.cx.v3beta1.SynthesizeSpeechConfig*"
-          + "\373\001\n\rAudioEncoding\022\036\n\032AUDIO_ENCODING_UNSP"
-          + "ECIFIED\020\000\022\034\n\030AUDIO_ENCODING_LINEAR_16\020\001\022"
-          + "\027\n\023AUDIO_ENCODING_FLAC\020\002\022\030\n\024AUDIO_ENCODI"
-          + "NG_MULAW\020\003\022\026\n\022AUDIO_ENCODING_AMR\020\004\022\031\n\025AU"
-          + "DIO_ENCODING_AMR_WB\020\005\022\033\n\027AUDIO_ENCODING_"
-          + "OGG_OPUS\020\006\022)\n%AUDIO_ENCODING_SPEEX_WITH_"
-          + "HEADER_BYTE\020\007*v\n\022SpeechModelVariant\022$\n S"
-          + "PEECH_MODEL_VARIANT_UNSPECIFIED\020\000\022\026\n\022USE"
-          + "_BEST_AVAILABLE\020\001\022\020\n\014USE_STANDARD\020\002\022\020\n\014U"
-          + "SE_ENHANCED\020\003*\215\001\n\017SsmlVoiceGender\022!\n\035SSM"
-          + "L_VOICE_GENDER_UNSPECIFIED\020\000\022\032\n\026SSML_VOI"
-          + "CE_GENDER_MALE\020\001\022\034\n\030SSML_VOICE_GENDER_FE"
-          + "MALE\020\002\022\035\n\031SSML_VOICE_GENDER_NEUTRAL\020\003*\354\001"
-          + "\n\023OutputAudioEncoding\022%\n!OUTPUT_AUDIO_EN"
-          + "CODING_UNSPECIFIED\020\000\022#\n\037OUTPUT_AUDIO_ENC"
-          + "ODING_LINEAR_16\020\001\022\035\n\031OUTPUT_AUDIO_ENCODI"
-          + "NG_MP3\020\002\022%\n!OUTPUT_AUDIO_ENCODING_MP3_64"
-          + "_KBPS\020\004\022\"\n\036OUTPUT_AUDIO_ENCODING_OGG_OPU"
-          + "S\020\003\022\037\n\033OUTPUT_AUDIO_ENCODING_MULAW\020\005B\242\002\n"
-          + "&com.google.cloud.dialogflow.cx.v3beta1B"
-          + "\020AudioConfigProtoP\001Z6cloud.google.com/go"
-          + "/dialogflow/cx/apiv3beta1/cxpb;cxpb\370\001\001\242\002"
-          + "\002DF\252\002\"Google.Cloud.Dialogflow.Cx.V3Beta1"
-          + "\352\002&Google::Cloud::Dialogflow::CX::V3beta"
-          + "1\352AU\n\033automl.googleapis.com/Model\0226proje"
-          + "cts/{project}/locations/{location}/model"
-          + "s/{model}b\006proto3"
+          + "gflow.cx.v3beta1.SynthesizeSpeechConfig\""
+          + "\214\002\n\024TextToSpeechSettings\022x\n\031synthesize_s"
+          + "peech_configs\030\001 \003(\0132U.google.cloud.dialo"
+          + "gflow.cx.v3beta1.TextToSpeechSettings.Sy"
+          + "nthesizeSpeechConfigsEntry\032z\n\034Synthesize"
+          + "SpeechConfigsEntry\022\013\n\003key\030\001 \001(\t\022I\n\005value"
+          + "\030\002 \001(\0132:.google.cloud.dialogflow.cx.v3be"
+          + "ta1.SynthesizeSpeechConfig:\0028\001*\373\001\n\rAudio"
+          + "Encoding\022\036\n\032AUDIO_ENCODING_UNSPECIFIED\020\000"
+          + "\022\034\n\030AUDIO_ENCODING_LINEAR_16\020\001\022\027\n\023AUDIO_"
+          + "ENCODING_FLAC\020\002\022\030\n\024AUDIO_ENCODING_MULAW\020"
+          + "\003\022\026\n\022AUDIO_ENCODING_AMR\020\004\022\031\n\025AUDIO_ENCOD"
+          + "ING_AMR_WB\020\005\022\033\n\027AUDIO_ENCODING_OGG_OPUS\020"
+          + "\006\022)\n%AUDIO_ENCODING_SPEEX_WITH_HEADER_BY"
+          + "TE\020\007*v\n\022SpeechModelVariant\022$\n SPEECH_MOD"
+          + "EL_VARIANT_UNSPECIFIED\020\000\022\026\n\022USE_BEST_AVA"
+          + "ILABLE\020\001\022\020\n\014USE_STANDARD\020\002\022\020\n\014USE_ENHANC"
+          + "ED\020\003*\215\001\n\017SsmlVoiceGender\022!\n\035SSML_VOICE_G"
+          + "ENDER_UNSPECIFIED\020\000\022\032\n\026SSML_VOICE_GENDER"
+          + "_MALE\020\001\022\034\n\030SSML_VOICE_GENDER_FEMALE\020\002\022\035\n"
+          + "\031SSML_VOICE_GENDER_NEUTRAL\020\003*\354\001\n\023OutputA"
+          + "udioEncoding\022%\n!OUTPUT_AUDIO_ENCODING_UN"
+          + "SPECIFIED\020\000\022#\n\037OUTPUT_AUDIO_ENCODING_LIN"
+          + "EAR_16\020\001\022\035\n\031OUTPUT_AUDIO_ENCODING_MP3\020\002\022"
+          + "%\n!OUTPUT_AUDIO_ENCODING_MP3_64_KBPS\020\004\022\""
+          + "\n\036OUTPUT_AUDIO_ENCODING_OGG_OPUS\020\003\022\037\n\033OU"
+          + "TPUT_AUDIO_ENCODING_MULAW\020\005B\242\002\n&com.goog"
+          + "le.cloud.dialogflow.cx.v3beta1B\020AudioCon"
+          + "figProtoP\001Z6cloud.google.com/go/dialogfl"
+          + "ow/cx/apiv3beta1/cxpb;cxpb\370\001\001\242\002\002DF\252\002\"Goo"
+          + "gle.Cloud.Dialogflow.Cx.V3Beta1\352\002&Google"
+          + "::Cloud::Dialogflow::CX::V3beta1\352AU\n\033aut"
+          + "oml.googleapis.com/Model\0226projects/{proj"
+          + "ect}/locations/{location}/models/{model}"
+          + "b\006proto3"
     };
     descriptor =
         com.google.protobuf.Descriptors.FileDescriptor.internalBuildGeneratedFileFrom(
@@ -167,6 +182,24 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
             new java.lang.String[] {
               "AudioEncoding", "SampleRateHertz", "SynthesizeSpeechConfig",
             });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_TextToSpeechSettings_descriptor =
+        getDescriptor().getMessageTypes().get(5);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_TextToSpeechSettings_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_TextToSpeechSettings_descriptor,
+            new java.lang.String[] {
+              "SynthesizeSpeechConfigs",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_TextToSpeechSettings_SynthesizeSpeechConfigsEntry_descriptor =
+        internal_static_google_cloud_dialogflow_cx_v3beta1_TextToSpeechSettings_descriptor
+            .getNestedTypes()
+            .get(0);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_TextToSpeechSettings_SynthesizeSpeechConfigsEntry_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_TextToSpeechSettings_SynthesizeSpeechConfigsEntry_descriptor,
+            new java.lang.String[] {
+              "Key", "Value",
+            });
     com.google.protobuf.ExtensionRegistry registry =
         com.google.protobuf.ExtensionRegistry.newInstance();
     registry.add(com.google.api.FieldBehaviorProto.fieldBehavior);
diff --git a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/Environment.java b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/Environment.java
index de4d3e83681f..cadce8da94ee 100644
--- a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/Environment.java
+++ b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/Environment.java
@@ -3101,14 +3101,14 @@ public com.google.protobuf.ByteString getDescriptionBytes() {
    *
    *
    * <pre>
-   * Required. A list of configurations for flow versions. You should include
-   * version configs for all flows that are reachable from [`Start
+   * A list of configurations for flow versions. You should include version
+   * configs for all flows that are reachable from [`Start
    * Flow`][Agent.start_flow] in the agent. Otherwise, an error will be
    * returned.
    * </pre>
    *
    * <code>
-   * repeated .google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig version_configs = 6 [(.google.api.field_behavior) = REQUIRED];
+   * repeated .google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig version_configs = 6;
    * </code>
    */
   @java.lang.Override
@@ -3120,14 +3120,14 @@ public com.google.protobuf.ByteString getDescriptionBytes() {
    *
    *
    * <pre>
-   * Required. A list of configurations for flow versions. You should include
-   * version configs for all flows that are reachable from [`Start
+   * A list of configurations for flow versions. You should include version
+   * configs for all flows that are reachable from [`Start
    * Flow`][Agent.start_flow] in the agent. Otherwise, an error will be
    * returned.
    * </pre>
    *
    * <code>
-   * repeated .google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig version_configs = 6 [(.google.api.field_behavior) = REQUIRED];
+   * repeated .google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig version_configs = 6;
    * </code>
    */
   @java.lang.Override
@@ -3140,14 +3140,14 @@ public com.google.protobuf.ByteString getDescriptionBytes() {
    *
    *
    * <pre>
-   * Required. A list of configurations for flow versions. You should include
-   * version configs for all flows that are reachable from [`Start
+   * A list of configurations for flow versions. You should include version
+   * configs for all flows that are reachable from [`Start
    * Flow`][Agent.start_flow] in the agent. Otherwise, an error will be
    * returned.
    * </pre>
    *
    * <code>
-   * repeated .google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig version_configs = 6 [(.google.api.field_behavior) = REQUIRED];
+   * repeated .google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig version_configs = 6;
    * </code>
    */
   @java.lang.Override
@@ -3158,14 +3158,14 @@ public int getVersionConfigsCount() {
    *
    *
    * <pre>
-   * Required. A list of configurations for flow versions. You should include
-   * version configs for all flows that are reachable from [`Start
+   * A list of configurations for flow versions. You should include version
+   * configs for all flows that are reachable from [`Start
    * Flow`][Agent.start_flow] in the agent. Otherwise, an error will be
    * returned.
    * </pre>
    *
    * <code>
-   * repeated .google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig version_configs = 6 [(.google.api.field_behavior) = REQUIRED];
+   * repeated .google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig version_configs = 6;
    * </code>
    */
   @java.lang.Override
@@ -3177,14 +3177,14 @@ public com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig getVersi
    *
    *
    * <pre>
-   * Required. A list of configurations for flow versions. You should include
-   * version configs for all flows that are reachable from [`Start
+   * A list of configurations for flow versions. You should include version
+   * configs for all flows that are reachable from [`Start
    * Flow`][Agent.start_flow] in the agent. Otherwise, an error will be
    * returned.
    * </pre>
    *
    * <code>
-   * repeated .google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig version_configs = 6 [(.google.api.field_behavior) = REQUIRED];
+   * repeated .google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig version_configs = 6;
    * </code>
    */
   @java.lang.Override
@@ -4272,14 +4272,14 @@ private void ensureVersionConfigsIsMutable() {
      *
      *
      * <pre>
-     * Required. A list of configurations for flow versions. You should include
-     * version configs for all flows that are reachable from [`Start
+     * A list of configurations for flow versions. You should include version
+     * configs for all flows that are reachable from [`Start
      * Flow`][Agent.start_flow] in the agent. Otherwise, an error will be
      * returned.
      * </pre>
      *
      * <code>
-     * repeated .google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig version_configs = 6 [(.google.api.field_behavior) = REQUIRED];
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig version_configs = 6;
      * </code>
      */
     public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig>
@@ -4294,14 +4294,14 @@ private void ensureVersionConfigsIsMutable() {
      *
      *
      * <pre>
-     * Required. A list of configurations for flow versions. You should include
-     * version configs for all flows that are reachable from [`Start
+     * A list of configurations for flow versions. You should include version
+     * configs for all flows that are reachable from [`Start
      * Flow`][Agent.start_flow] in the agent. Otherwise, an error will be
      * returned.
      * </pre>
      *
      * <code>
-     * repeated .google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig version_configs = 6 [(.google.api.field_behavior) = REQUIRED];
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig version_configs = 6;
      * </code>
      */
     public int getVersionConfigsCount() {
@@ -4315,14 +4315,14 @@ public int getVersionConfigsCount() {
      *
      *
      * <pre>
-     * Required. A list of configurations for flow versions. You should include
-     * version configs for all flows that are reachable from [`Start
+     * A list of configurations for flow versions. You should include version
+     * configs for all flows that are reachable from [`Start
      * Flow`][Agent.start_flow] in the agent. Otherwise, an error will be
      * returned.
      * </pre>
      *
      * <code>
-     * repeated .google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig version_configs = 6 [(.google.api.field_behavior) = REQUIRED];
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig version_configs = 6;
      * </code>
      */
     public com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig getVersionConfigs(
@@ -4337,14 +4337,14 @@ public com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig getVersi
      *
      *
      * <pre>
-     * Required. A list of configurations for flow versions. You should include
-     * version configs for all flows that are reachable from [`Start
+     * A list of configurations for flow versions. You should include version
+     * configs for all flows that are reachable from [`Start
      * Flow`][Agent.start_flow] in the agent. Otherwise, an error will be
      * returned.
      * </pre>
      *
      * <code>
-     * repeated .google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig version_configs = 6 [(.google.api.field_behavior) = REQUIRED];
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig version_configs = 6;
      * </code>
      */
     public Builder setVersionConfigs(
@@ -4365,14 +4365,14 @@ public Builder setVersionConfigs(
      *
      *
      * <pre>
-     * Required. A list of configurations for flow versions. You should include
-     * version configs for all flows that are reachable from [`Start
+     * A list of configurations for flow versions. You should include version
+     * configs for all flows that are reachable from [`Start
      * Flow`][Agent.start_flow] in the agent. Otherwise, an error will be
      * returned.
      * </pre>
      *
      * <code>
-     * repeated .google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig version_configs = 6 [(.google.api.field_behavior) = REQUIRED];
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig version_configs = 6;
      * </code>
      */
     public Builder setVersionConfigs(
@@ -4391,14 +4391,14 @@ public Builder setVersionConfigs(
      *
      *
      * <pre>
-     * Required. A list of configurations for flow versions. You should include
-     * version configs for all flows that are reachable from [`Start
+     * A list of configurations for flow versions. You should include version
+     * configs for all flows that are reachable from [`Start
      * Flow`][Agent.start_flow] in the agent. Otherwise, an error will be
      * returned.
      * </pre>
      *
      * <code>
-     * repeated .google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig version_configs = 6 [(.google.api.field_behavior) = REQUIRED];
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig version_configs = 6;
      * </code>
      */
     public Builder addVersionConfigs(
@@ -4419,14 +4419,14 @@ public Builder addVersionConfigs(
      *
      *
      * <pre>
-     * Required. A list of configurations for flow versions. You should include
-     * version configs for all flows that are reachable from [`Start
+     * A list of configurations for flow versions. You should include version
+     * configs for all flows that are reachable from [`Start
      * Flow`][Agent.start_flow] in the agent. Otherwise, an error will be
      * returned.
      * </pre>
      *
      * <code>
-     * repeated .google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig version_configs = 6 [(.google.api.field_behavior) = REQUIRED];
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig version_configs = 6;
      * </code>
      */
     public Builder addVersionConfigs(
@@ -4447,14 +4447,14 @@ public Builder addVersionConfigs(
      *
      *
      * <pre>
-     * Required. A list of configurations for flow versions. You should include
-     * version configs for all flows that are reachable from [`Start
+     * A list of configurations for flow versions. You should include version
+     * configs for all flows that are reachable from [`Start
      * Flow`][Agent.start_flow] in the agent. Otherwise, an error will be
      * returned.
      * </pre>
      *
      * <code>
-     * repeated .google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig version_configs = 6 [(.google.api.field_behavior) = REQUIRED];
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig version_configs = 6;
      * </code>
      */
     public Builder addVersionConfigs(
@@ -4472,14 +4472,14 @@ public Builder addVersionConfigs(
      *
      *
      * <pre>
-     * Required. A list of configurations for flow versions. You should include
-     * version configs for all flows that are reachable from [`Start
+     * A list of configurations for flow versions. You should include version
+     * configs for all flows that are reachable from [`Start
      * Flow`][Agent.start_flow] in the agent. Otherwise, an error will be
      * returned.
      * </pre>
      *
      * <code>
-     * repeated .google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig version_configs = 6 [(.google.api.field_behavior) = REQUIRED];
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig version_configs = 6;
      * </code>
      */
     public Builder addVersionConfigs(
@@ -4498,14 +4498,14 @@ public Builder addVersionConfigs(
      *
      *
      * <pre>
-     * Required. A list of configurations for flow versions. You should include
-     * version configs for all flows that are reachable from [`Start
+     * A list of configurations for flow versions. You should include version
+     * configs for all flows that are reachable from [`Start
      * Flow`][Agent.start_flow] in the agent. Otherwise, an error will be
      * returned.
      * </pre>
      *
      * <code>
-     * repeated .google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig version_configs = 6 [(.google.api.field_behavior) = REQUIRED];
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig version_configs = 6;
      * </code>
      */
     public Builder addAllVersionConfigs(
@@ -4525,14 +4525,14 @@ public Builder addAllVersionConfigs(
      *
      *
      * <pre>
-     * Required. A list of configurations for flow versions. You should include
-     * version configs for all flows that are reachable from [`Start
+     * A list of configurations for flow versions. You should include version
+     * configs for all flows that are reachable from [`Start
      * Flow`][Agent.start_flow] in the agent. Otherwise, an error will be
      * returned.
      * </pre>
      *
      * <code>
-     * repeated .google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig version_configs = 6 [(.google.api.field_behavior) = REQUIRED];
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig version_configs = 6;
      * </code>
      */
     public Builder clearVersionConfigs() {
@@ -4549,14 +4549,14 @@ public Builder clearVersionConfigs() {
      *
      *
      * <pre>
-     * Required. A list of configurations for flow versions. You should include
-     * version configs for all flows that are reachable from [`Start
+     * A list of configurations for flow versions. You should include version
+     * configs for all flows that are reachable from [`Start
      * Flow`][Agent.start_flow] in the agent. Otherwise, an error will be
      * returned.
      * </pre>
      *
      * <code>
-     * repeated .google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig version_configs = 6 [(.google.api.field_behavior) = REQUIRED];
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig version_configs = 6;
      * </code>
      */
     public Builder removeVersionConfigs(int index) {
@@ -4573,14 +4573,14 @@ public Builder removeVersionConfigs(int index) {
      *
      *
      * <pre>
-     * Required. A list of configurations for flow versions. You should include
-     * version configs for all flows that are reachable from [`Start
+     * A list of configurations for flow versions. You should include version
+     * configs for all flows that are reachable from [`Start
      * Flow`][Agent.start_flow] in the agent. Otherwise, an error will be
      * returned.
      * </pre>
      *
      * <code>
-     * repeated .google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig version_configs = 6 [(.google.api.field_behavior) = REQUIRED];
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig version_configs = 6;
      * </code>
      */
     public com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig.Builder
@@ -4591,14 +4591,14 @@ public Builder removeVersionConfigs(int index) {
      *
      *
      * <pre>
-     * Required. A list of configurations for flow versions. You should include
-     * version configs for all flows that are reachable from [`Start
+     * A list of configurations for flow versions. You should include version
+     * configs for all flows that are reachable from [`Start
      * Flow`][Agent.start_flow] in the agent. Otherwise, an error will be
      * returned.
      * </pre>
      *
      * <code>
-     * repeated .google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig version_configs = 6 [(.google.api.field_behavior) = REQUIRED];
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig version_configs = 6;
      * </code>
      */
     public com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfigOrBuilder
@@ -4613,14 +4613,14 @@ public Builder removeVersionConfigs(int index) {
      *
      *
      * <pre>
-     * Required. A list of configurations for flow versions. You should include
-     * version configs for all flows that are reachable from [`Start
+     * A list of configurations for flow versions. You should include version
+     * configs for all flows that are reachable from [`Start
      * Flow`][Agent.start_flow] in the agent. Otherwise, an error will be
      * returned.
      * </pre>
      *
      * <code>
-     * repeated .google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig version_configs = 6 [(.google.api.field_behavior) = REQUIRED];
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig version_configs = 6;
      * </code>
      */
     public java.util.List<
@@ -4636,14 +4636,14 @@ public Builder removeVersionConfigs(int index) {
      *
      *
      * <pre>
-     * Required. A list of configurations for flow versions. You should include
-     * version configs for all flows that are reachable from [`Start
+     * A list of configurations for flow versions. You should include version
+     * configs for all flows that are reachable from [`Start
      * Flow`][Agent.start_flow] in the agent. Otherwise, an error will be
      * returned.
      * </pre>
      *
      * <code>
-     * repeated .google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig version_configs = 6 [(.google.api.field_behavior) = REQUIRED];
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig version_configs = 6;
      * </code>
      */
     public com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig.Builder
@@ -4657,14 +4657,14 @@ public Builder removeVersionConfigs(int index) {
      *
      *
      * <pre>
-     * Required. A list of configurations for flow versions. You should include
-     * version configs for all flows that are reachable from [`Start
+     * A list of configurations for flow versions. You should include version
+     * configs for all flows that are reachable from [`Start
      * Flow`][Agent.start_flow] in the agent. Otherwise, an error will be
      * returned.
      * </pre>
      *
      * <code>
-     * repeated .google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig version_configs = 6 [(.google.api.field_behavior) = REQUIRED];
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig version_configs = 6;
      * </code>
      */
     public com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig.Builder
@@ -4679,14 +4679,14 @@ public Builder removeVersionConfigs(int index) {
      *
      *
      * <pre>
-     * Required. A list of configurations for flow versions. You should include
-     * version configs for all flows that are reachable from [`Start
+     * A list of configurations for flow versions. You should include version
+     * configs for all flows that are reachable from [`Start
      * Flow`][Agent.start_flow] in the agent. Otherwise, an error will be
      * returned.
      * </pre>
      *
      * <code>
-     * repeated .google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig version_configs = 6 [(.google.api.field_behavior) = REQUIRED];
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig version_configs = 6;
      * </code>
      */
     public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig.Builder>
diff --git a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/EnvironmentOrBuilder.java b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/EnvironmentOrBuilder.java
index e04a1748cb72..33cebfbebbd2 100644
--- a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/EnvironmentOrBuilder.java
+++ b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/EnvironmentOrBuilder.java
@@ -110,14 +110,14 @@ public interface EnvironmentOrBuilder
    *
    *
    * <pre>
-   * Required. A list of configurations for flow versions. You should include
-   * version configs for all flows that are reachable from [`Start
+   * A list of configurations for flow versions. You should include version
+   * configs for all flows that are reachable from [`Start
    * Flow`][Agent.start_flow] in the agent. Otherwise, an error will be
    * returned.
    * </pre>
    *
    * <code>
-   * repeated .google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig version_configs = 6 [(.google.api.field_behavior) = REQUIRED];
+   * repeated .google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig version_configs = 6;
    * </code>
    */
   java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig>
@@ -126,14 +126,14 @@ public interface EnvironmentOrBuilder
    *
    *
    * <pre>
-   * Required. A list of configurations for flow versions. You should include
-   * version configs for all flows that are reachable from [`Start
+   * A list of configurations for flow versions. You should include version
+   * configs for all flows that are reachable from [`Start
    * Flow`][Agent.start_flow] in the agent. Otherwise, an error will be
    * returned.
    * </pre>
    *
    * <code>
-   * repeated .google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig version_configs = 6 [(.google.api.field_behavior) = REQUIRED];
+   * repeated .google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig version_configs = 6;
    * </code>
    */
   com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig getVersionConfigs(int index);
@@ -141,14 +141,14 @@ public interface EnvironmentOrBuilder
    *
    *
    * <pre>
-   * Required. A list of configurations for flow versions. You should include
-   * version configs for all flows that are reachable from [`Start
+   * A list of configurations for flow versions. You should include version
+   * configs for all flows that are reachable from [`Start
    * Flow`][Agent.start_flow] in the agent. Otherwise, an error will be
    * returned.
    * </pre>
    *
    * <code>
-   * repeated .google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig version_configs = 6 [(.google.api.field_behavior) = REQUIRED];
+   * repeated .google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig version_configs = 6;
    * </code>
    */
   int getVersionConfigsCount();
@@ -156,14 +156,14 @@ public interface EnvironmentOrBuilder
    *
    *
    * <pre>
-   * Required. A list of configurations for flow versions. You should include
-   * version configs for all flows that are reachable from [`Start
+   * A list of configurations for flow versions. You should include version
+   * configs for all flows that are reachable from [`Start
    * Flow`][Agent.start_flow] in the agent. Otherwise, an error will be
    * returned.
    * </pre>
    *
    * <code>
-   * repeated .google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig version_configs = 6 [(.google.api.field_behavior) = REQUIRED];
+   * repeated .google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig version_configs = 6;
    * </code>
    */
   java.util.List<
@@ -173,14 +173,14 @@ public interface EnvironmentOrBuilder
    *
    *
    * <pre>
-   * Required. A list of configurations for flow versions. You should include
-   * version configs for all flows that are reachable from [`Start
+   * A list of configurations for flow versions. You should include version
+   * configs for all flows that are reachable from [`Start
    * Flow`][Agent.start_flow] in the agent. Otherwise, an error will be
    * returned.
    * </pre>
    *
    * <code>
-   * repeated .google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig version_configs = 6 [(.google.api.field_behavior) = REQUIRED];
+   * repeated .google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig version_configs = 6;
    * </code>
    */
   com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfigOrBuilder
diff --git a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/EnvironmentProto.java b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/EnvironmentProto.java
index 6a5c6b33d1ba..eb726280f5d9 100644
--- a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/EnvironmentProto.java
+++ b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/EnvironmentProto.java
@@ -130,156 +130,156 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
           + "ow/cx/v3beta1/webhook.proto\032#google/long"
           + "running/operations.proto\032\033google/protobu"
           + "f/empty.proto\032 google/protobuf/field_mas"
-          + "k.proto\032\037google/protobuf/timestamp.proto"
-          + "\"\310\006\n\013Environment\022\014\n\004name\030\001 \001(\t\022\031\n\014displa"
-          + "y_name\030\002 \001(\tB\003\340A\002\022\023\n\013description\030\003 \001(\t\022["
-          + "\n\017version_configs\030\006 \003(\0132=.google.cloud.d"
-          + "ialogflow.cx.v3beta1.Environment.Version"
-          + "ConfigB\003\340A\002\0224\n\013update_time\030\005 \001(\0132\032.googl"
-          + "e.protobuf.TimestampB\003\340A\003\022Z\n\021test_cases_"
-          + "config\030\007 \001(\0132?.google.cloud.dialogflow.c"
-          + "x.v3beta1.Environment.TestCasesConfig\022U\n"
-          + "\016webhook_config\030\n \001(\0132=.google.cloud.dia"
-          + "logflow.cx.v3beta1.Environment.WebhookCo"
-          + "nfig\032K\n\rVersionConfig\022:\n\007version\030\001 \001(\tB)"
-          + "\340A\002\372A#\n!dialogflow.googleapis.com/Versio"
-          + "n\032\217\001\n\017TestCasesConfig\022;\n\ntest_cases\030\001 \003("
-          + "\tB\'\372A$\n\"dialogflow.googleapis.com/TestCa"
-          + "se\022\035\n\025enable_continuous_run\030\002 \001(\010\022 \n\030ena"
-          + "ble_predeployment_run\030\003 \001(\010\032W\n\rWebhookCo"
-          + "nfig\022F\n\021webhook_overrides\030\001 \003(\0132+.google"
-          + ".cloud.dialogflow.cx.v3beta1.Webhook:}\352A"
-          + "z\n%dialogflow.googleapis.com/Environment"
-          + "\022Qprojects/{project}/locations/{location"
-          + "}/agents/{agent}/environments/{environme"
-          + "nt}\"\177\n\027ListEnvironmentsRequest\022=\n\006parent"
-          + "\030\001 \001(\tB-\340A\002\372A\'\022%dialogflow.googleapis.co"
-          + "m/Environment\022\021\n\tpage_size\030\002 \001(\005\022\022\n\npage"
-          + "_token\030\003 \001(\t\"z\n\030ListEnvironmentsResponse"
-          + "\022E\n\014environments\030\001 \003(\0132/.google.cloud.di"
-          + "alogflow.cx.v3beta1.Environment\022\027\n\017next_"
-          + "page_token\030\002 \001(\t\"T\n\025GetEnvironmentReques"
-          + "t\022;\n\004name\030\001 \001(\tB-\340A\002\372A\'\n%dialogflow.goog"
-          + "leapis.com/Environment\"\244\001\n\030CreateEnviron"
-          + "mentRequest\022=\n\006parent\030\001 \001(\tB-\340A\002\372A\'\022%dia"
-          + "logflow.googleapis.com/Environment\022I\n\013en"
-          + "vironment\030\002 \001(\0132/.google.cloud.dialogflo"
-          + "w.cx.v3beta1.EnvironmentB\003\340A\002\"\233\001\n\030Update"
-          + "EnvironmentRequest\022I\n\013environment\030\001 \001(\0132"
-          + "/.google.cloud.dialogflow.cx.v3beta1.Env"
-          + "ironmentB\003\340A\002\0224\n\013update_mask\030\002 \001(\0132\032.goo"
-          + "gle.protobuf.FieldMaskB\003\340A\002\"W\n\030DeleteEnv"
-          + "ironmentRequest\022;\n\004name\030\001 \001(\tB-\340A\002\372A\'\n%d"
-          + "ialogflow.googleapis.com/Environment\"\205\001\n"
-          + "\037LookupEnvironmentHistoryRequest\022;\n\004name"
-          + "\030\001 \001(\tB-\340A\002\372A\'\n%dialogflow.googleapis.co"
-          + "m/Environment\022\021\n\tpage_size\030\002 \001(\005\022\022\n\npage"
-          + "_token\030\003 \001(\t\"\202\001\n LookupEnvironmentHistor"
-          + "yResponse\022E\n\014environments\030\001 \003(\0132/.google"
-          + ".cloud.dialogflow.cx.v3beta1.Environment"
-          + "\022\027\n\017next_page_token\030\002 \001(\t\"\215\004\n\024Continuous"
-          + "TestResult\022\014\n\004name\030\001 \001(\t\022]\n\006result\030\002 \001(\016"
-          + "2M.google.cloud.dialogflow.cx.v3beta1.Co"
-          + "ntinuousTestResult.AggregatedTestResult\022"
-          + "H\n\021test_case_results\030\003 \003(\tB-\372A*\n(dialogf"
-          + "low.googleapis.com/TestCaseResult\022,\n\010run"
-          + "_time\030\004 \001(\0132\032.google.protobuf.Timestamp\""
-          + "V\n\024AggregatedTestResult\022&\n\"AGGREGATED_TE"
-          + "ST_RESULT_UNSPECIFIED\020\000\022\n\n\006PASSED\020\001\022\n\n\006F"
-          + "AILED\020\002:\267\001\352A\263\001\n.dialogflow.googleapis.co"
-          + "m/ContinuousTestResult\022\200\001projects/{proje"
-          + "ct}/locations/{location}/agents/{agent}/"
-          + "environments/{environment}/continuousTes"
-          + "tResults/{continuous_test_result}\"^\n\030Run"
-          + "ContinuousTestRequest\022B\n\013environment\030\001 \001"
-          + "(\tB-\340A\002\372A\'\n%dialogflow.googleapis.com/En"
-          + "vironment\"u\n\031RunContinuousTestResponse\022X"
-          + "\n\026continuous_test_result\030\001 \001(\01328.google."
-          + "cloud.dialogflow.cx.v3beta1.ContinuousTe"
-          + "stResult\"Z\n\031RunContinuousTestMetadata\022=\n"
-          + "\006errors\030\001 \003(\0132-.google.cloud.dialogflow."
-          + "cx.v3beta1.TestError\"\221\001\n ListContinuousT"
-          + "estResultsRequest\022F\n\006parent\030\001 \001(\tB6\340A\002\372A"
-          + "0\022.dialogflow.googleapis.com/ContinuousT"
-          + "estResult\022\021\n\tpage_size\030\002 \001(\005\022\022\n\npage_tok"
-          + "en\030\003 \001(\t\"\227\001\n!ListContinuousTestResultsRe"
-          + "sponse\022Y\n\027continuous_test_results\030\001 \003(\0132"
-          + "8.google.cloud.dialogflow.cx.v3beta1.Con"
-          + "tinuousTestResult\022\027\n\017next_page_token\030\002 \001"
-          + "(\t\"\230\001\n\021DeployFlowRequest\022B\n\013environment\030"
-          + "\001 \001(\tB-\340A\002\372A\'\n%dialogflow.googleapis.com"
-          + "/Environment\022?\n\014flow_version\030\002 \001(\tB)\340A\002\372"
-          + "A#\n!dialogflow.googleapis.com/Version\"n\n"
-          + "\022DeployFlowResponse\022D\n\013environment\030\001 \001(\013"
+          + "k.proto\032\034google/protobuf/struct.proto\032\037g"
+          + "oogle/protobuf/timestamp.proto\"\303\006\n\013Envir"
+          + "onment\022\014\n\004name\030\001 \001(\t\022\031\n\014display_name\030\002 \001"
+          + "(\tB\003\340A\002\022\023\n\013description\030\003 \001(\t\022V\n\017version_"
+          + "configs\030\006 \003(\0132=.google.cloud.dialogflow."
+          + "cx.v3beta1.Environment.VersionConfig\0224\n\013"
+          + "update_time\030\005 \001(\0132\032.google.protobuf.Time"
+          + "stampB\003\340A\003\022Z\n\021test_cases_config\030\007 \001(\0132?."
+          + "google.cloud.dialogflow.cx.v3beta1.Envir"
+          + "onment.TestCasesConfig\022U\n\016webhook_config"
+          + "\030\n \001(\0132=.google.cloud.dialogflow.cx.v3be"
+          + "ta1.Environment.WebhookConfig\032K\n\rVersion"
+          + "Config\022:\n\007version\030\001 \001(\tB)\340A\002\372A#\n!dialogf"
+          + "low.googleapis.com/Version\032\217\001\n\017TestCases"
+          + "Config\022;\n\ntest_cases\030\001 \003(\tB\'\372A$\n\"dialogf"
+          + "low.googleapis.com/TestCase\022\035\n\025enable_co"
+          + "ntinuous_run\030\002 \001(\010\022 \n\030enable_predeployme"
+          + "nt_run\030\003 \001(\010\032W\n\rWebhookConfig\022F\n\021webhook"
+          + "_overrides\030\001 \003(\0132+.google.cloud.dialogfl"
+          + "ow.cx.v3beta1.Webhook:}\352Az\n%dialogflow.g"
+          + "oogleapis.com/Environment\022Qprojects/{pro"
+          + "ject}/locations/{location}/agents/{agent"
+          + "}/environments/{environment}\"\177\n\027ListEnvi"
+          + "ronmentsRequest\022=\n\006parent\030\001 \001(\tB-\340A\002\372A\'\022"
+          + "%dialogflow.googleapis.com/Environment\022\021"
+          + "\n\tpage_size\030\002 \001(\005\022\022\n\npage_token\030\003 \001(\t\"z\n"
+          + "\030ListEnvironmentsResponse\022E\n\014environment"
+          + "s\030\001 \003(\0132/.google.cloud.dialogflow.cx.v3b"
+          + "eta1.Environment\022\027\n\017next_page_token\030\002 \001("
+          + "\t\"T\n\025GetEnvironmentRequest\022;\n\004name\030\001 \001(\t"
+          + "B-\340A\002\372A\'\n%dialogflow.googleapis.com/Envi"
+          + "ronment\"\244\001\n\030CreateEnvironmentRequest\022=\n\006"
+          + "parent\030\001 \001(\tB-\340A\002\372A\'\022%dialogflow.googlea"
+          + "pis.com/Environment\022I\n\013environment\030\002 \001(\013"
           + "2/.google.cloud.dialogflow.cx.v3beta1.En"
-          + "vironment\022\022\n\ndeployment\030\002 \001(\t\"X\n\022DeployF"
-          + "lowMetadata\022B\n\013test_errors\030\001 \003(\0132-.googl"
-          + "e.cloud.dialogflow.cx.v3beta1.TestError2"
-          + "\262\022\n\014Environments\022\336\001\n\020ListEnvironments\022;."
-          + "google.cloud.dialogflow.cx.v3beta1.ListE"
-          + "nvironmentsRequest\032<.google.cloud.dialog"
-          + "flow.cx.v3beta1.ListEnvironmentsResponse"
-          + "\"O\202\323\344\223\002@\022>/v3beta1/{parent=projects/*/lo"
-          + "cations/*/agents/*}/environments\332A\006paren"
-          + "t\022\313\001\n\016GetEnvironment\0229.google.cloud.dial"
-          + "ogflow.cx.v3beta1.GetEnvironmentRequest\032"
-          + "/.google.cloud.dialogflow.cx.v3beta1.Env"
-          + "ironment\"M\202\323\344\223\002@\022>/v3beta1/{name=project"
+          + "vironmentB\003\340A\002\"\233\001\n\030UpdateEnvironmentRequ"
+          + "est\022I\n\013environment\030\001 \001(\0132/.google.cloud."
+          + "dialogflow.cx.v3beta1.EnvironmentB\003\340A\002\0224"
+          + "\n\013update_mask\030\002 \001(\0132\032.google.protobuf.Fi"
+          + "eldMaskB\003\340A\002\"W\n\030DeleteEnvironmentRequest"
+          + "\022;\n\004name\030\001 \001(\tB-\340A\002\372A\'\n%dialogflow.googl"
+          + "eapis.com/Environment\"\205\001\n\037LookupEnvironm"
+          + "entHistoryRequest\022;\n\004name\030\001 \001(\tB-\340A\002\372A\'\n"
+          + "%dialogflow.googleapis.com/Environment\022\021"
+          + "\n\tpage_size\030\002 \001(\005\022\022\n\npage_token\030\003 \001(\t\"\202\001"
+          + "\n LookupEnvironmentHistoryResponse\022E\n\014en"
+          + "vironments\030\001 \003(\0132/.google.cloud.dialogfl"
+          + "ow.cx.v3beta1.Environment\022\027\n\017next_page_t"
+          + "oken\030\002 \001(\t\"\215\004\n\024ContinuousTestResult\022\014\n\004n"
+          + "ame\030\001 \001(\t\022]\n\006result\030\002 \001(\0162M.google.cloud"
+          + ".dialogflow.cx.v3beta1.ContinuousTestRes"
+          + "ult.AggregatedTestResult\022H\n\021test_case_re"
+          + "sults\030\003 \003(\tB-\372A*\n(dialogflow.googleapis."
+          + "com/TestCaseResult\022,\n\010run_time\030\004 \001(\0132\032.g"
+          + "oogle.protobuf.Timestamp\"V\n\024AggregatedTe"
+          + "stResult\022&\n\"AGGREGATED_TEST_RESULT_UNSPE"
+          + "CIFIED\020\000\022\n\n\006PASSED\020\001\022\n\n\006FAILED\020\002:\267\001\352A\263\001\n"
+          + ".dialogflow.googleapis.com/ContinuousTes"
+          + "tResult\022\200\001projects/{project}/locations/{"
+          + "location}/agents/{agent}/environments/{e"
+          + "nvironment}/continuousTestResults/{conti"
+          + "nuous_test_result}\"^\n\030RunContinuousTestR"
+          + "equest\022B\n\013environment\030\001 \001(\tB-\340A\002\372A\'\n%dia"
+          + "logflow.googleapis.com/Environment\"u\n\031Ru"
+          + "nContinuousTestResponse\022X\n\026continuous_te"
+          + "st_result\030\001 \001(\01328.google.cloud.dialogflo"
+          + "w.cx.v3beta1.ContinuousTestResult\"Z\n\031Run"
+          + "ContinuousTestMetadata\022=\n\006errors\030\001 \003(\0132-"
+          + ".google.cloud.dialogflow.cx.v3beta1.Test"
+          + "Error\"\221\001\n ListContinuousTestResultsReque"
+          + "st\022F\n\006parent\030\001 \001(\tB6\340A\002\372A0\022.dialogflow.g"
+          + "oogleapis.com/ContinuousTestResult\022\021\n\tpa"
+          + "ge_size\030\002 \001(\005\022\022\n\npage_token\030\003 \001(\t\"\227\001\n!Li"
+          + "stContinuousTestResultsResponse\022Y\n\027conti"
+          + "nuous_test_results\030\001 \003(\01328.google.cloud."
+          + "dialogflow.cx.v3beta1.ContinuousTestResu"
+          + "lt\022\027\n\017next_page_token\030\002 \001(\t\"\230\001\n\021DeployFl"
+          + "owRequest\022B\n\013environment\030\001 \001(\tB-\340A\002\372A\'\n%"
+          + "dialogflow.googleapis.com/Environment\022?\n"
+          + "\014flow_version\030\002 \001(\tB)\340A\002\372A#\n!dialogflow."
+          + "googleapis.com/Version\"n\n\022DeployFlowResp"
+          + "onse\022D\n\013environment\030\001 \001(\0132/.google.cloud"
+          + ".dialogflow.cx.v3beta1.Environment\022\022\n\nde"
+          + "ployment\030\002 \001(\t\"X\n\022DeployFlowMetadata\022B\n\013"
+          + "test_errors\030\001 \003(\0132-.google.cloud.dialogf"
+          + "low.cx.v3beta1.TestError2\262\022\n\014Environment"
+          + "s\022\336\001\n\020ListEnvironments\022;.google.cloud.di"
+          + "alogflow.cx.v3beta1.ListEnvironmentsRequ"
+          + "est\032<.google.cloud.dialogflow.cx.v3beta1"
+          + ".ListEnvironmentsResponse\"O\202\323\344\223\002@\022>/v3be"
+          + "ta1/{parent=projects/*/locations/*/agent"
+          + "s/*}/environments\332A\006parent\022\313\001\n\016GetEnviro"
+          + "nment\0229.google.cloud.dialogflow.cx.v3bet"
+          + "a1.GetEnvironmentRequest\032/.google.cloud."
+          + "dialogflow.cx.v3beta1.Environment\"M\202\323\344\223\002"
+          + "@\022>/v3beta1/{name=projects/*/locations/*"
+          + "/agents/*/environments/*}\332A\004name\022\203\002\n\021Cre"
+          + "ateEnvironment\022<.google.cloud.dialogflow"
+          + ".cx.v3beta1.CreateEnvironmentRequest\032\035.g"
+          + "oogle.longrunning.Operation\"\220\001\202\323\344\223\002M\">/v"
+          + "3beta1/{parent=projects/*/locations/*/ag"
+          + "ents/*}/environments:\013environment\332A\022pare"
+          + "nt,environment\312A%\n\013Environment\022\026google.p"
+          + "rotobuf.Struct\022\224\002\n\021UpdateEnvironment\022<.g"
+          + "oogle.cloud.dialogflow.cx.v3beta1.Update"
+          + "EnvironmentRequest\032\035.google.longrunning."
+          + "Operation\"\241\001\202\323\344\223\002Y2J/v3beta1/{environmen"
+          + "t.name=projects/*/locations/*/agents/*/e"
+          + "nvironments/*}:\013environment\332A\027environmen"
+          + "t,update_mask\312A%\n\013Environment\022\026google.pr"
+          + "otobuf.Struct\022\270\001\n\021DeleteEnvironment\022<.go"
+          + "ogle.cloud.dialogflow.cx.v3beta1.DeleteE"
+          + "nvironmentRequest\032\026.google.protobuf.Empt"
+          + "y\"M\202\323\344\223\002@*>/v3beta1/{name=projects/*/loc"
+          + "ations/*/agents/*/environments/*}\332A\004name"
+          + "\022\215\002\n\030LookupEnvironmentHistory\022C.google.c"
+          + "loud.dialogflow.cx.v3beta1.LookupEnviron"
+          + "mentHistoryRequest\032D.google.cloud.dialog"
+          + "flow.cx.v3beta1.LookupEnvironmentHistory"
+          + "Response\"f\202\323\344\223\002Y\022W/v3beta1/{name=project"
           + "s/*/locations/*/agents/*/environments/*}"
-          + "\332A\004name\022\203\002\n\021CreateEnvironment\022<.google.c"
-          + "loud.dialogflow.cx.v3beta1.CreateEnviron"
-          + "mentRequest\032\035.google.longrunning.Operati"
-          + "on\"\220\001\202\323\344\223\002M\">/v3beta1/{parent=projects/*"
-          + "/locations/*/agents/*}/environments:\013env"
-          + "ironment\332A\022parent,environment\312A%\n\013Enviro"
-          + "nment\022\026google.protobuf.Struct\022\224\002\n\021Update"
-          + "Environment\022<.google.cloud.dialogflow.cx"
-          + ".v3beta1.UpdateEnvironmentRequest\032\035.goog"
-          + "le.longrunning.Operation\"\241\001\202\323\344\223\002Y2J/v3be"
-          + "ta1/{environment.name=projects/*/locatio"
-          + "ns/*/agents/*/environments/*}:\013environme"
-          + "nt\332A\027environment,update_mask\312A%\n\013Environ"
-          + "ment\022\026google.protobuf.Struct\022\270\001\n\021DeleteE"
-          + "nvironment\022<.google.cloud.dialogflow.cx."
-          + "v3beta1.DeleteEnvironmentRequest\032\026.googl"
-          + "e.protobuf.Empty\"M\202\323\344\223\002@*>/v3beta1/{name"
-          + "=projects/*/locations/*/agents/*/environ"
-          + "ments/*}\332A\004name\022\215\002\n\030LookupEnvironmentHis"
-          + "tory\022C.google.cloud.dialogflow.cx.v3beta"
-          + "1.LookupEnvironmentHistoryRequest\032D.goog"
-          + "le.cloud.dialogflow.cx.v3beta1.LookupEnv"
-          + "ironmentHistoryResponse\"f\202\323\344\223\002Y\022W/v3beta"
-          + "1/{name=projects/*/locations/*/agents/*/"
-          + "environments/*}:lookupEnvironmentHistory"
-          + "\332A\004name\022\216\002\n\021RunContinuousTest\022<.google.c"
-          + "loud.dialogflow.cx.v3beta1.RunContinuous"
-          + "TestRequest\032\035.google.longrunning.Operati"
-          + "on\"\233\001\202\323\344\223\002\\\"W/v3beta1/{environment=proje"
+          + ":lookupEnvironmentHistory\332A\004name\022\216\002\n\021Run"
+          + "ContinuousTest\022<.google.cloud.dialogflow"
+          + ".cx.v3beta1.RunContinuousTestRequest\032\035.g"
+          + "oogle.longrunning.Operation\"\233\001\202\323\344\223\002\\\"W/v"
+          + "3beta1/{environment=projects/*/locations"
+          + "/*/agents/*/environments/*}:runContinuou"
+          + "sTest:\001*\312A6\n\031RunContinuousTestResponse\022\031"
+          + "RunContinuousTestMetadata\022\221\002\n\031ListContin"
+          + "uousTestResults\022D.google.cloud.dialogflo"
+          + "w.cx.v3beta1.ListContinuousTestResultsRe"
+          + "quest\032E.google.cloud.dialogflow.cx.v3bet"
+          + "a1.ListContinuousTestResultsResponse\"g\202\323"
+          + "\344\223\002X\022V/v3beta1/{parent=projects/*/locati"
+          + "ons/*/agents/*/environments/*}/continuou"
+          + "sTestResults\332A\006parent\022\353\001\n\nDeployFlow\0225.g"
+          + "oogle.cloud.dialogflow.cx.v3beta1.Deploy"
+          + "FlowRequest\032\035.google.longrunning.Operati"
+          + "on\"\206\001\202\323\344\223\002U\"P/v3beta1/{environment=proje"
           + "cts/*/locations/*/agents/*/environments/"
-          + "*}:runContinuousTest:\001*\312A6\n\031RunContinuou"
-          + "sTestResponse\022\031RunContinuousTestMetadata"
-          + "\022\221\002\n\031ListContinuousTestResults\022D.google."
-          + "cloud.dialogflow.cx.v3beta1.ListContinuo"
-          + "usTestResultsRequest\032E.google.cloud.dial"
-          + "ogflow.cx.v3beta1.ListContinuousTestResu"
-          + "ltsResponse\"g\202\323\344\223\002X\022V/v3beta1/{parent=pr"
-          + "ojects/*/locations/*/agents/*/environmen"
-          + "ts/*}/continuousTestResults\332A\006parent\022\353\001\n"
-          + "\nDeployFlow\0225.google.cloud.dialogflow.cx"
-          + ".v3beta1.DeployFlowRequest\032\035.google.long"
-          + "running.Operation\"\206\001\202\323\344\223\002U\"P/v3beta1/{en"
-          + "vironment=projects/*/locations/*/agents/"
-          + "*/environments/*}:deployFlow:\001*\312A(\n\022Depl"
-          + "oyFlowResponse\022\022DeployFlowMetadata\032x\312A\031d"
-          + "ialogflow.googleapis.com\322AYhttps://www.g"
-          + "oogleapis.com/auth/cloud-platform,https:"
-          + "//www.googleapis.com/auth/dialogflowB\312\001\n"
-          + "&com.google.cloud.dialogflow.cx.v3beta1B"
-          + "\020EnvironmentProtoP\001Z6cloud.google.com/go"
-          + "/dialogflow/cx/apiv3beta1/cxpb;cxpb\370\001\001\242\002"
-          + "\002DF\252\002\"Google.Cloud.Dialogflow.Cx.V3Beta1"
-          + "\352\002&Google::Cloud::Dialogflow::CX::V3beta"
-          + "1b\006proto3"
+          + "*}:deployFlow:\001*\312A(\n\022DeployFlowResponse\022"
+          + "\022DeployFlowMetadata\032x\312A\031dialogflow.googl"
+          + "eapis.com\322AYhttps://www.googleapis.com/a"
+          + "uth/cloud-platform,https://www.googleapi"
+          + "s.com/auth/dialogflowB\312\001\n&com.google.clo"
+          + "ud.dialogflow.cx.v3beta1B\020EnvironmentPro"
+          + "toP\001Z6cloud.google.com/go/dialogflow/cx/"
+          + "apiv3beta1/cxpb;cxpb\370\001\001\242\002\002DF\252\002\"Google.Cl"
+          + "oud.Dialogflow.Cx.V3Beta1\352\002&Google::Clou"
+          + "d::Dialogflow::CX::V3beta1b\006proto3"
     };
     descriptor =
         com.google.protobuf.Descriptors.FileDescriptor.internalBuildGeneratedFileFrom(
@@ -294,6 +294,7 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
               com.google.longrunning.OperationsProto.getDescriptor(),
               com.google.protobuf.EmptyProto.getDescriptor(),
               com.google.protobuf.FieldMaskProto.getDescriptor(),
+              com.google.protobuf.StructProto.getDescriptor(),
               com.google.protobuf.TimestampProto.getDescriptor(),
             });
     internal_static_google_cloud_dialogflow_cx_v3beta1_Environment_descriptor =
@@ -497,6 +498,7 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
     com.google.longrunning.OperationsProto.getDescriptor();
     com.google.protobuf.EmptyProto.getDescriptor();
     com.google.protobuf.FieldMaskProto.getDescriptor();
+    com.google.protobuf.StructProto.getDescriptor();
     com.google.protobuf.TimestampProto.getDescriptor();
   }
 
diff --git a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/FlowProto.java b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/FlowProto.java
index bdfca3e21159..0fd87889ff7e 100644
--- a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/FlowProto.java
+++ b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/FlowProto.java
@@ -110,139 +110,140 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
           + "1/validation_message.proto\032#google/longr"
           + "unning/operations.proto\032\033google/protobuf"
           + "/empty.proto\032 google/protobuf/field_mask"
-          + ".proto\032\037google/protobuf/timestamp.proto\""
-          + "\266\003\n\013NluSettings\022M\n\nmodel_type\030\001 \001(\01629.go"
-          + "ogle.cloud.dialogflow.cx.v3beta1.NluSett"
-          + "ings.ModelType\022 \n\030classification_thresho"
-          + "ld\030\003 \001(\002\022^\n\023model_training_mode\030\004 \001(\0162A."
-          + "google.cloud.dialogflow.cx.v3beta1.NluSe"
-          + "ttings.ModelTrainingMode\"Y\n\tModelType\022\032\n"
-          + "\026MODEL_TYPE_UNSPECIFIED\020\000\022\027\n\023MODEL_TYPE_"
-          + "STANDARD\020\001\022\027\n\023MODEL_TYPE_ADVANCED\020\003\"{\n\021M"
-          + "odelTrainingMode\022#\n\037MODEL_TRAINING_MODE_"
-          + "UNSPECIFIED\020\000\022!\n\035MODEL_TRAINING_MODE_AUT"
-          + "OMATIC\020\001\022\036\n\032MODEL_TRAINING_MODE_MANUAL\020\002"
-          + "\"\345\003\n\004Flow\022\014\n\004name\030\001 \001(\t\022\031\n\014display_name\030"
-          + "\002 \001(\tB\003\340A\002\022\023\n\013description\030\003 \001(\t\022N\n\021trans"
-          + "ition_routes\030\004 \003(\01323.google.cloud.dialog"
-          + "flow.cx.v3beta1.TransitionRoute\022H\n\016event"
-          + "_handlers\030\n \003(\01320.google.cloud.dialogflo"
-          + "w.cx.v3beta1.EventHandler\022T\n\027transition_"
-          + "route_groups\030\017 \003(\tB3\372A0\n.dialogflow.goog"
-          + "leapis.com/TransitionRouteGroup\022E\n\014nlu_s"
-          + "ettings\030\013 \001(\0132/.google.cloud.dialogflow."
-          + "cx.v3beta1.NluSettings:h\352Ae\n\036dialogflow."
-          + "googleapis.com/Flow\022Cprojects/{project}/"
-          + "locations/{location}/agents/{agent}/flow"
-          + "s/{flow}\"\237\001\n\021CreateFlowRequest\0226\n\006parent"
-          + "\030\001 \001(\tB&\340A\002\372A \022\036dialogflow.googleapis.co"
-          + "m/Flow\022;\n\004flow\030\002 \001(\0132(.google.cloud.dial"
-          + "ogflow.cx.v3beta1.FlowB\003\340A\002\022\025\n\rlanguage_"
-          + "code\030\003 \001(\t\"X\n\021DeleteFlowRequest\0224\n\004name\030"
-          + "\001 \001(\tB&\340A\002\372A \n\036dialogflow.googleapis.com"
-          + "/Flow\022\r\n\005force\030\002 \001(\010\"\210\001\n\020ListFlowsReques"
-          + "t\0226\n\006parent\030\001 \001(\tB&\340A\002\372A \022\036dialogflow.go"
-          + "ogleapis.com/Flow\022\021\n\tpage_size\030\002 \001(\005\022\022\n\n"
-          + "page_token\030\003 \001(\t\022\025\n\rlanguage_code\030\004 \001(\t\""
-          + "e\n\021ListFlowsResponse\0227\n\005flows\030\001 \003(\0132(.go"
-          + "ogle.cloud.dialogflow.cx.v3beta1.Flow\022\027\n"
-          + "\017next_page_token\030\002 \001(\t\"]\n\016GetFlowRequest"
-          + "\0224\n\004name\030\001 \001(\tB&\340A\002\372A \n\036dialogflow.googl"
-          + "eapis.com/Flow\022\025\n\rlanguage_code\030\002 \001(\t\"\230\001"
-          + "\n\021UpdateFlowRequest\022;\n\004flow\030\001 \001(\0132(.goog"
-          + "le.cloud.dialogflow.cx.v3beta1.FlowB\003\340A\002"
-          + "\022/\n\013update_mask\030\002 \001(\0132\032.google.protobuf."
-          + "FieldMask\022\025\n\rlanguage_code\030\003 \001(\t\"H\n\020Trai"
-          + "nFlowRequest\0224\n\004name\030\001 \001(\tB&\340A\002\372A \n\036dial"
-          + "ogflow.googleapis.com/Flow\"b\n\023ValidateFl"
-          + "owRequest\0224\n\004name\030\001 \001(\tB&\340A\002\372A \n\036dialogf"
-          + "low.googleapis.com/Flow\022\025\n\rlanguage_code"
-          + "\030\002 \001(\t\"}\n\036GetFlowValidationResultRequest"
-          + "\022D\n\004name\030\001 \001(\tB6\340A\002\372A0\n.dialogflow.googl"
-          + "eapis.com/FlowValidationResult\022\025\n\rlangua"
-          + "ge_code\030\002 \001(\t\"\266\002\n\024FlowValidationResult\022\014"
-          + "\n\004name\030\001 \001(\t\022R\n\023validation_messages\030\002 \003("
-          + "\01325.google.cloud.dialogflow.cx.v3beta1.V"
-          + "alidationMessage\022/\n\013update_time\030\003 \001(\0132\032."
-          + "google.protobuf.Timestamp:\212\001\352A\206\001\n.dialog"
-          + "flow.googleapis.com/FlowValidationResult"
-          + "\022Tprojects/{project}/locations/{location"
-          + "}/agents/{agent}/flows/{flow}/validation"
-          + "Result\"\241\002\n\021ImportFlowRequest\0226\n\006parent\030\001"
-          + " \001(\tB&\340A\002\372A \022\036dialogflow.googleapis.com/"
-          + "Flow\022\022\n\010flow_uri\030\002 \001(\tH\000\022\026\n\014flow_content"
-          + "\030\003 \001(\014H\000\022Y\n\rimport_option\030\004 \001(\0162B.google"
-          + ".cloud.dialogflow.cx.v3beta1.ImportFlowR"
-          + "equest.ImportOption\"E\n\014ImportOption\022\035\n\031I"
-          + "MPORT_OPTION_UNSPECIFIED\020\000\022\010\n\004KEEP\020\001\022\014\n\010"
-          + "FALLBACK\020\002B\006\n\004flow\"G\n\022ImportFlowResponse"
-          + "\0221\n\004flow\030\001 \001(\tB#\372A \n\036dialogflow.googleap"
-          + "is.com/Flow\"\207\001\n\021ExportFlowRequest\0224\n\004nam"
-          + "e\030\001 \001(\tB&\340A\002\372A \n\036dialogflow.googleapis.c"
-          + "om/Flow\022\025\n\010flow_uri\030\002 \001(\tB\003\340A\001\022%\n\030includ"
-          + "e_referenced_flows\030\004 \001(\010B\003\340A\001\"H\n\022ExportF"
-          + "lowResponse\022\022\n\010flow_uri\030\001 \001(\tH\000\022\026\n\014flow_"
-          + "content\030\002 \001(\014H\000B\006\n\004flow2\233\021\n\005Flows\022\302\001\n\nCr"
-          + "eateFlow\0225.google.cloud.dialogflow.cx.v3"
-          + "beta1.CreateFlowRequest\032(.google.cloud.d"
-          + "ialogflow.cx.v3beta1.Flow\"S\202\323\344\223\002?\"7/v3be"
-          + "ta1/{parent=projects/*/locations/*/agent"
-          + "s/*}/flows:\004flow\332A\013parent,flow\022\243\001\n\nDelet"
-          + "eFlow\0225.google.cloud.dialogflow.cx.v3bet"
-          + "a1.DeleteFlowRequest\032\026.google.protobuf.E"
-          + "mpty\"F\202\323\344\223\0029*7/v3beta1/{name=projects/*/"
-          + "locations/*/agents/*/flows/*}\332A\004name\022\302\001\n"
-          + "\tListFlows\0224.google.cloud.dialogflow.cx."
-          + "v3beta1.ListFlowsRequest\0325.google.cloud."
-          + "dialogflow.cx.v3beta1.ListFlowsResponse\""
-          + "H\202\323\344\223\0029\0227/v3beta1/{parent=projects/*/loc"
-          + "ations/*/agents/*}/flows\332A\006parent\022\257\001\n\007Ge"
-          + "tFlow\0222.google.cloud.dialogflow.cx.v3bet"
-          + "a1.GetFlowRequest\032(.google.cloud.dialogf"
-          + "low.cx.v3beta1.Flow\"F\202\323\344\223\0029\0227/v3beta1/{n"
-          + "ame=projects/*/locations/*/agents/*/flow"
-          + "s/*}\332A\004name\022\314\001\n\nUpdateFlow\0225.google.clou"
-          + "d.dialogflow.cx.v3beta1.UpdateFlowReques"
-          + "t\032(.google.cloud.dialogflow.cx.v3beta1.F"
-          + "low\"]\202\323\344\223\002D2</v3beta1/{flow.name=project"
-          + "s/*/locations/*/agents/*/flows/*}:\004flow\332"
-          + "A\020flow,update_mask\022\344\001\n\tTrainFlow\0224.googl"
-          + "e.cloud.dialogflow.cx.v3beta1.TrainFlowR"
-          + "equest\032\035.google.longrunning.Operation\"\201\001"
-          + "\202\323\344\223\002B\"=/v3beta1/{name=projects/*/locati"
-          + "ons/*/agents/*/flows/*}:train:\001*\332A\004name\312"
-          + "A/\n\025google.protobuf.Empty\022\026google.protob"
-          + "uf.Struct\022\316\001\n\014ValidateFlow\0227.google.clou"
-          + "d.dialogflow.cx.v3beta1.ValidateFlowRequ"
-          + "est\0328.google.cloud.dialogflow.cx.v3beta1"
-          + ".FlowValidationResult\"K\202\323\344\223\002E\"@/v3beta1/"
-          + "{name=projects/*/locations/*/agents/*/fl"
-          + "ows/*}:validate:\001*\022\360\001\n\027GetFlowValidation"
-          + "Result\022B.google.cloud.dialogflow.cx.v3be"
-          + "ta1.GetFlowValidationResultRequest\0328.goo"
-          + "gle.cloud.dialogflow.cx.v3beta1.FlowVali"
-          + "dationResult\"W\202\323\344\223\002J\022H/v3beta1/{name=pro"
-          + "jects/*/locations/*/agents/*/flows/*/val"
-          + "idationResult}\332A\004name\022\334\001\n\nImportFlow\0225.g"
-          + "oogle.cloud.dialogflow.cx.v3beta1.Import"
-          + "FlowRequest\032\035.google.longrunning.Operati"
-          + "on\"x\202\323\344\223\002C\">/v3beta1/{parent=projects/*/"
-          + "locations/*/agents/*}/flows:import:\001*\312A,"
-          + "\n\022ImportFlowResponse\022\026google.protobuf.St"
-          + "ruct\022\334\001\n\nExportFlow\0225.google.cloud.dialo"
-          + "gflow.cx.v3beta1.ExportFlowRequest\032\035.goo"
-          + "gle.longrunning.Operation\"x\202\323\344\223\002C\">/v3be"
-          + "ta1/{name=projects/*/locations/*/agents/"
-          + "*/flows/*}:export:\001*\312A,\n\022ExportFlowRespo"
-          + "nse\022\026google.protobuf.Struct\032x\312A\031dialogfl"
-          + "ow.googleapis.com\322AYhttps://www.googleap"
-          + "is.com/auth/cloud-platform,https://www.g"
-          + "oogleapis.com/auth/dialogflowB\303\001\n&com.go"
-          + "ogle.cloud.dialogflow.cx.v3beta1B\tFlowPr"
-          + "otoP\001Z6cloud.google.com/go/dialogflow/cx"
-          + "/apiv3beta1/cxpb;cxpb\370\001\001\242\002\002DF\252\002\"Google.C"
-          + "loud.Dialogflow.Cx.V3Beta1\352\002&Google::Clo"
-          + "ud::Dialogflow::CX::V3beta1b\006proto3"
+          + ".proto\032\034google/protobuf/struct.proto\032\037go"
+          + "ogle/protobuf/timestamp.proto\"\266\003\n\013NluSet"
+          + "tings\022M\n\nmodel_type\030\001 \001(\01629.google.cloud"
+          + ".dialogflow.cx.v3beta1.NluSettings.Model"
+          + "Type\022 \n\030classification_threshold\030\003 \001(\002\022^"
+          + "\n\023model_training_mode\030\004 \001(\0162A.google.clo"
+          + "ud.dialogflow.cx.v3beta1.NluSettings.Mod"
+          + "elTrainingMode\"Y\n\tModelType\022\032\n\026MODEL_TYP"
+          + "E_UNSPECIFIED\020\000\022\027\n\023MODEL_TYPE_STANDARD\020\001"
+          + "\022\027\n\023MODEL_TYPE_ADVANCED\020\003\"{\n\021ModelTraini"
+          + "ngMode\022#\n\037MODEL_TRAINING_MODE_UNSPECIFIE"
+          + "D\020\000\022!\n\035MODEL_TRAINING_MODE_AUTOMATIC\020\001\022\036"
+          + "\n\032MODEL_TRAINING_MODE_MANUAL\020\002\"\345\003\n\004Flow\022"
+          + "\014\n\004name\030\001 \001(\t\022\031\n\014display_name\030\002 \001(\tB\003\340A\002"
+          + "\022\023\n\013description\030\003 \001(\t\022N\n\021transition_rout"
+          + "es\030\004 \003(\01323.google.cloud.dialogflow.cx.v3"
+          + "beta1.TransitionRoute\022H\n\016event_handlers\030"
+          + "\n \003(\01320.google.cloud.dialogflow.cx.v3bet"
+          + "a1.EventHandler\022T\n\027transition_route_grou"
+          + "ps\030\017 \003(\tB3\372A0\n.dialogflow.googleapis.com"
+          + "/TransitionRouteGroup\022E\n\014nlu_settings\030\013 "
+          + "\001(\0132/.google.cloud.dialogflow.cx.v3beta1"
+          + ".NluSettings:h\352Ae\n\036dialogflow.googleapis"
+          + ".com/Flow\022Cprojects/{project}/locations/"
+          + "{location}/agents/{agent}/flows/{flow}\"\237"
+          + "\001\n\021CreateFlowRequest\0226\n\006parent\030\001 \001(\tB&\340A"
+          + "\002\372A \022\036dialogflow.googleapis.com/Flow\022;\n\004"
+          + "flow\030\002 \001(\0132(.google.cloud.dialogflow.cx."
+          + "v3beta1.FlowB\003\340A\002\022\025\n\rlanguage_code\030\003 \001(\t"
+          + "\"X\n\021DeleteFlowRequest\0224\n\004name\030\001 \001(\tB&\340A\002"
+          + "\372A \n\036dialogflow.googleapis.com/Flow\022\r\n\005f"
+          + "orce\030\002 \001(\010\"\210\001\n\020ListFlowsRequest\0226\n\006paren"
+          + "t\030\001 \001(\tB&\340A\002\372A \022\036dialogflow.googleapis.c"
+          + "om/Flow\022\021\n\tpage_size\030\002 \001(\005\022\022\n\npage_token"
+          + "\030\003 \001(\t\022\025\n\rlanguage_code\030\004 \001(\t\"e\n\021ListFlo"
+          + "wsResponse\0227\n\005flows\030\001 \003(\0132(.google.cloud"
+          + ".dialogflow.cx.v3beta1.Flow\022\027\n\017next_page"
+          + "_token\030\002 \001(\t\"]\n\016GetFlowRequest\0224\n\004name\030\001"
+          + " \001(\tB&\340A\002\372A \n\036dialogflow.googleapis.com/"
+          + "Flow\022\025\n\rlanguage_code\030\002 \001(\t\"\230\001\n\021UpdateFl"
+          + "owRequest\022;\n\004flow\030\001 \001(\0132(.google.cloud.d"
+          + "ialogflow.cx.v3beta1.FlowB\003\340A\002\022/\n\013update"
+          + "_mask\030\002 \001(\0132\032.google.protobuf.FieldMask\022"
+          + "\025\n\rlanguage_code\030\003 \001(\t\"H\n\020TrainFlowReque"
+          + "st\0224\n\004name\030\001 \001(\tB&\340A\002\372A \n\036dialogflow.goo"
+          + "gleapis.com/Flow\"b\n\023ValidateFlowRequest\022"
+          + "4\n\004name\030\001 \001(\tB&\340A\002\372A \n\036dialogflow.google"
+          + "apis.com/Flow\022\025\n\rlanguage_code\030\002 \001(\t\"}\n\036"
+          + "GetFlowValidationResultRequest\022D\n\004name\030\001"
+          + " \001(\tB6\340A\002\372A0\n.dialogflow.googleapis.com/"
+          + "FlowValidationResult\022\025\n\rlanguage_code\030\002 "
+          + "\001(\t\"\266\002\n\024FlowValidationResult\022\014\n\004name\030\001 \001"
+          + "(\t\022R\n\023validation_messages\030\002 \003(\01325.google"
+          + ".cloud.dialogflow.cx.v3beta1.ValidationM"
+          + "essage\022/\n\013update_time\030\003 \001(\0132\032.google.pro"
+          + "tobuf.Timestamp:\212\001\352A\206\001\n.dialogflow.googl"
+          + "eapis.com/FlowValidationResult\022Tprojects"
+          + "/{project}/locations/{location}/agents/{"
+          + "agent}/flows/{flow}/validationResult\"\241\002\n"
+          + "\021ImportFlowRequest\0226\n\006parent\030\001 \001(\tB&\340A\002\372"
+          + "A \022\036dialogflow.googleapis.com/Flow\022\022\n\010fl"
+          + "ow_uri\030\002 \001(\tH\000\022\026\n\014flow_content\030\003 \001(\014H\000\022Y"
+          + "\n\rimport_option\030\004 \001(\0162B.google.cloud.dia"
+          + "logflow.cx.v3beta1.ImportFlowRequest.Imp"
+          + "ortOption\"E\n\014ImportOption\022\035\n\031IMPORT_OPTI"
+          + "ON_UNSPECIFIED\020\000\022\010\n\004KEEP\020\001\022\014\n\010FALLBACK\020\002"
+          + "B\006\n\004flow\"G\n\022ImportFlowResponse\0221\n\004flow\030\001"
+          + " \001(\tB#\372A \n\036dialogflow.googleapis.com/Flo"
+          + "w\"\207\001\n\021ExportFlowRequest\0224\n\004name\030\001 \001(\tB&\340"
+          + "A\002\372A \n\036dialogflow.googleapis.com/Flow\022\025\n"
+          + "\010flow_uri\030\002 \001(\tB\003\340A\001\022%\n\030include_referenc"
+          + "ed_flows\030\004 \001(\010B\003\340A\001\"H\n\022ExportFlowRespons"
+          + "e\022\022\n\010flow_uri\030\001 \001(\tH\000\022\026\n\014flow_content\030\002 "
+          + "\001(\014H\000B\006\n\004flow2\233\021\n\005Flows\022\302\001\n\nCreateFlow\0225"
+          + ".google.cloud.dialogflow.cx.v3beta1.Crea"
+          + "teFlowRequest\032(.google.cloud.dialogflow."
+          + "cx.v3beta1.Flow\"S\202\323\344\223\002?\"7/v3beta1/{paren"
+          + "t=projects/*/locations/*/agents/*}/flows"
+          + ":\004flow\332A\013parent,flow\022\243\001\n\nDeleteFlow\0225.go"
+          + "ogle.cloud.dialogflow.cx.v3beta1.DeleteF"
+          + "lowRequest\032\026.google.protobuf.Empty\"F\202\323\344\223"
+          + "\0029*7/v3beta1/{name=projects/*/locations/"
+          + "*/agents/*/flows/*}\332A\004name\022\302\001\n\tListFlows"
+          + "\0224.google.cloud.dialogflow.cx.v3beta1.Li"
+          + "stFlowsRequest\0325.google.cloud.dialogflow"
+          + ".cx.v3beta1.ListFlowsResponse\"H\202\323\344\223\0029\0227/"
+          + "v3beta1/{parent=projects/*/locations/*/a"
+          + "gents/*}/flows\332A\006parent\022\257\001\n\007GetFlow\0222.go"
+          + "ogle.cloud.dialogflow.cx.v3beta1.GetFlow"
+          + "Request\032(.google.cloud.dialogflow.cx.v3b"
+          + "eta1.Flow\"F\202\323\344\223\0029\0227/v3beta1/{name=projec"
+          + "ts/*/locations/*/agents/*/flows/*}\332A\004nam"
+          + "e\022\314\001\n\nUpdateFlow\0225.google.cloud.dialogfl"
+          + "ow.cx.v3beta1.UpdateFlowRequest\032(.google"
+          + ".cloud.dialogflow.cx.v3beta1.Flow\"]\202\323\344\223\002"
+          + "D2</v3beta1/{flow.name=projects/*/locati"
+          + "ons/*/agents/*/flows/*}:\004flow\332A\020flow,upd"
+          + "ate_mask\022\344\001\n\tTrainFlow\0224.google.cloud.di"
+          + "alogflow.cx.v3beta1.TrainFlowRequest\032\035.g"
+          + "oogle.longrunning.Operation\"\201\001\202\323\344\223\002B\"=/v"
+          + "3beta1/{name=projects/*/locations/*/agen"
+          + "ts/*/flows/*}:train:\001*\332A\004name\312A/\n\025google"
+          + ".protobuf.Empty\022\026google.protobuf.Struct\022"
+          + "\316\001\n\014ValidateFlow\0227.google.cloud.dialogfl"
+          + "ow.cx.v3beta1.ValidateFlowRequest\0328.goog"
+          + "le.cloud.dialogflow.cx.v3beta1.FlowValid"
+          + "ationResult\"K\202\323\344\223\002E\"@/v3beta1/{name=proj"
+          + "ects/*/locations/*/agents/*/flows/*}:val"
+          + "idate:\001*\022\360\001\n\027GetFlowValidationResult\022B.g"
+          + "oogle.cloud.dialogflow.cx.v3beta1.GetFlo"
+          + "wValidationResultRequest\0328.google.cloud."
+          + "dialogflow.cx.v3beta1.FlowValidationResu"
+          + "lt\"W\202\323\344\223\002J\022H/v3beta1/{name=projects/*/lo"
+          + "cations/*/agents/*/flows/*/validationRes"
+          + "ult}\332A\004name\022\334\001\n\nImportFlow\0225.google.clou"
+          + "d.dialogflow.cx.v3beta1.ImportFlowReques"
+          + "t\032\035.google.longrunning.Operation\"x\202\323\344\223\002C"
+          + "\">/v3beta1/{parent=projects/*/locations/"
+          + "*/agents/*}/flows:import:\001*\312A,\n\022ImportFl"
+          + "owResponse\022\026google.protobuf.Struct\022\334\001\n\nE"
+          + "xportFlow\0225.google.cloud.dialogflow.cx.v"
+          + "3beta1.ExportFlowRequest\032\035.google.longru"
+          + "nning.Operation\"x\202\323\344\223\002C\">/v3beta1/{name="
+          + "projects/*/locations/*/agents/*/flows/*}"
+          + ":export:\001*\312A,\n\022ExportFlowResponse\022\026googl"
+          + "e.protobuf.Struct\032x\312A\031dialogflow.googlea"
+          + "pis.com\322AYhttps://www.googleapis.com/aut"
+          + "h/cloud-platform,https://www.googleapis."
+          + "com/auth/dialogflowB\303\001\n&com.google.cloud"
+          + ".dialogflow.cx.v3beta1B\tFlowProtoP\001Z6clo"
+          + "ud.google.com/go/dialogflow/cx/apiv3beta"
+          + "1/cxpb;cxpb\370\001\001\242\002\002DF\252\002\"Google.Cloud.Dialo"
+          + "gflow.Cx.V3Beta1\352\002&Google::Cloud::Dialog"
+          + "flow::CX::V3beta1b\006proto3"
     };
     descriptor =
         com.google.protobuf.Descriptors.FileDescriptor.internalBuildGeneratedFileFrom(
@@ -257,6 +258,7 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
               com.google.longrunning.OperationsProto.getDescriptor(),
               com.google.protobuf.EmptyProto.getDescriptor(),
               com.google.protobuf.FieldMaskProto.getDescriptor(),
+              com.google.protobuf.StructProto.getDescriptor(),
               com.google.protobuf.TimestampProto.getDescriptor(),
             });
     internal_static_google_cloud_dialogflow_cx_v3beta1_NluSettings_descriptor =
@@ -414,6 +416,7 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
     com.google.longrunning.OperationsProto.getDescriptor();
     com.google.protobuf.EmptyProto.getDescriptor();
     com.google.protobuf.FieldMaskProto.getDescriptor();
+    com.google.protobuf.StructProto.getDescriptor();
     com.google.protobuf.TimestampProto.getDescriptor();
   }
 
diff --git a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GcsDestination.java b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GcsDestination.java
new file mode 100644
index 000000000000..761e36b0a8cf
--- /dev/null
+++ b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GcsDestination.java
@@ -0,0 +1,660 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/gcs.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * Google Cloud Storage location for a Dialogflow operation that writes or
+ * exports objects (e.g. exported agent or transcripts) outside of Dialogflow.
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.GcsDestination}
+ */
+public final class GcsDestination extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.GcsDestination)
+    GcsDestinationOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use GcsDestination.newBuilder() to construct.
+  private GcsDestination(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private GcsDestination() {
+    uri_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new GcsDestination();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.GcsProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_GcsDestination_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.GcsProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_GcsDestination_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.GcsDestination.class,
+            com.google.cloud.dialogflow.cx.v3beta1.GcsDestination.Builder.class);
+  }
+
+  public static final int URI_FIELD_NUMBER = 1;
+
+  @SuppressWarnings("serial")
+  private volatile java.lang.Object uri_ = "";
+  /**
+   *
+   *
+   * <pre>
+   * Required. The Google Cloud Storage URI for the exported objects. A URI is
+   * of the form:
+   *   gs://bucket/object-name-or-prefix
+   * Whether a full object name, or just a prefix, its usage depends on the
+   * Dialogflow operation.
+   * </pre>
+   *
+   * <code>string uri = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+   *
+   * @return The uri.
+   */
+  @java.lang.Override
+  public java.lang.String getUri() {
+    java.lang.Object ref = uri_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      uri_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The Google Cloud Storage URI for the exported objects. A URI is
+   * of the form:
+   *   gs://bucket/object-name-or-prefix
+   * Whether a full object name, or just a prefix, its usage depends on the
+   * Dialogflow operation.
+   * </pre>
+   *
+   * <code>string uri = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+   *
+   * @return The bytes for uri.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getUriBytes() {
+    java.lang.Object ref = uri_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      uri_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(uri_)) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, uri_);
+    }
+    getUnknownFields().writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(uri_)) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, uri_);
+    }
+    size += getUnknownFields().getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.GcsDestination)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.GcsDestination other =
+        (com.google.cloud.dialogflow.cx.v3beta1.GcsDestination) obj;
+
+    if (!getUri().equals(other.getUri())) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + URI_FIELD_NUMBER;
+    hash = (53 * hash) + getUri().hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GcsDestination parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GcsDestination parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GcsDestination parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GcsDestination parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GcsDestination parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GcsDestination parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GcsDestination parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GcsDestination parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GcsDestination parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GcsDestination parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GcsDestination parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GcsDestination parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.GcsDestination prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Google Cloud Storage location for a Dialogflow operation that writes or
+   * exports objects (e.g. exported agent or transcripts) outside of Dialogflow.
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.GcsDestination}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.GcsDestination)
+      com.google.cloud.dialogflow.cx.v3beta1.GcsDestinationOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.GcsProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_GcsDestination_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.GcsProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_GcsDestination_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.GcsDestination.class,
+              com.google.cloud.dialogflow.cx.v3beta1.GcsDestination.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.GcsDestination.newBuilder()
+    private Builder() {}
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      bitField0_ = 0;
+      uri_ = "";
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.GcsProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_GcsDestination_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.GcsDestination getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.GcsDestination.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.GcsDestination build() {
+      com.google.cloud.dialogflow.cx.v3beta1.GcsDestination result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.GcsDestination buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.GcsDestination result =
+          new com.google.cloud.dialogflow.cx.v3beta1.GcsDestination(this);
+      if (bitField0_ != 0) {
+        buildPartial0(result);
+      }
+      onBuilt();
+      return result;
+    }
+
+    private void buildPartial0(com.google.cloud.dialogflow.cx.v3beta1.GcsDestination result) {
+      int from_bitField0_ = bitField0_;
+      if (((from_bitField0_ & 0x00000001) != 0)) {
+        result.uri_ = uri_;
+      }
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.GcsDestination) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.GcsDestination) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.GcsDestination other) {
+      if (other == com.google.cloud.dialogflow.cx.v3beta1.GcsDestination.getDefaultInstance())
+        return this;
+      if (!other.getUri().isEmpty()) {
+        uri_ = other.uri_;
+        bitField0_ |= 0x00000001;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.getUnknownFields());
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
+      try {
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                uri_ = input.readStringRequireUtf8();
+                bitField0_ |= 0x00000001;
+                break;
+              } // case 10
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        throw e.unwrapIOException();
+      } finally {
+        onChanged();
+      } // finally
+      return this;
+    }
+
+    private int bitField0_;
+
+    private java.lang.Object uri_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Required. The Google Cloud Storage URI for the exported objects. A URI is
+     * of the form:
+     *   gs://bucket/object-name-or-prefix
+     * Whether a full object name, or just a prefix, its usage depends on the
+     * Dialogflow operation.
+     * </pre>
+     *
+     * <code>string uri = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @return The uri.
+     */
+    public java.lang.String getUri() {
+      java.lang.Object ref = uri_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        uri_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The Google Cloud Storage URI for the exported objects. A URI is
+     * of the form:
+     *   gs://bucket/object-name-or-prefix
+     * Whether a full object name, or just a prefix, its usage depends on the
+     * Dialogflow operation.
+     * </pre>
+     *
+     * <code>string uri = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @return The bytes for uri.
+     */
+    public com.google.protobuf.ByteString getUriBytes() {
+      java.lang.Object ref = uri_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        uri_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The Google Cloud Storage URI for the exported objects. A URI is
+     * of the form:
+     *   gs://bucket/object-name-or-prefix
+     * Whether a full object name, or just a prefix, its usage depends on the
+     * Dialogflow operation.
+     * </pre>
+     *
+     * <code>string uri = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @param value The uri to set.
+     * @return This builder for chaining.
+     */
+    public Builder setUri(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      uri_ = value;
+      bitField0_ |= 0x00000001;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The Google Cloud Storage URI for the exported objects. A URI is
+     * of the form:
+     *   gs://bucket/object-name-or-prefix
+     * Whether a full object name, or just a prefix, its usage depends on the
+     * Dialogflow operation.
+     * </pre>
+     *
+     * <code>string uri = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearUri() {
+      uri_ = getDefaultInstance().getUri();
+      bitField0_ = (bitField0_ & ~0x00000001);
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The Google Cloud Storage URI for the exported objects. A URI is
+     * of the form:
+     *   gs://bucket/object-name-or-prefix
+     * Whether a full object name, or just a prefix, its usage depends on the
+     * Dialogflow operation.
+     * </pre>
+     *
+     * <code>string uri = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @param value The bytes for uri to set.
+     * @return This builder for chaining.
+     */
+    public Builder setUriBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+      uri_ = value;
+      bitField0_ |= 0x00000001;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.GcsDestination)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.GcsDestination)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.GcsDestination DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.GcsDestination();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GcsDestination getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<GcsDestination> PARSER =
+      new com.google.protobuf.AbstractParser<GcsDestination>() {
+        @java.lang.Override
+        public GcsDestination parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
+        }
+      };
+
+  public static com.google.protobuf.Parser<GcsDestination> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<GcsDestination> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.GcsDestination getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GcsDestinationOrBuilder.java b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GcsDestinationOrBuilder.java
new file mode 100644
index 000000000000..f2f8b85c53c1
--- /dev/null
+++ b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GcsDestinationOrBuilder.java
@@ -0,0 +1,58 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/gcs.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface GcsDestinationOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.GcsDestination)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The Google Cloud Storage URI for the exported objects. A URI is
+   * of the form:
+   *   gs://bucket/object-name-or-prefix
+   * Whether a full object name, or just a prefix, its usage depends on the
+   * Dialogflow operation.
+   * </pre>
+   *
+   * <code>string uri = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+   *
+   * @return The uri.
+   */
+  java.lang.String getUri();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The Google Cloud Storage URI for the exported objects. A URI is
+   * of the form:
+   *   gs://bucket/object-name-or-prefix
+   * Whether a full object name, or just a prefix, its usage depends on the
+   * Dialogflow operation.
+   * </pre>
+   *
+   * <code>string uri = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+   *
+   * @return The bytes for uri.
+   */
+  com.google.protobuf.ByteString getUriBytes();
+}
diff --git a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GcsProto.java b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GcsProto.java
new file mode 100644
index 000000000000..bff8fe653d2f
--- /dev/null
+++ b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GcsProto.java
@@ -0,0 +1,76 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/gcs.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public final class GcsProto {
+  private GcsProto() {}
+
+  public static void registerAllExtensions(com.google.protobuf.ExtensionRegistryLite registry) {}
+
+  public static void registerAllExtensions(com.google.protobuf.ExtensionRegistry registry) {
+    registerAllExtensions((com.google.protobuf.ExtensionRegistryLite) registry);
+  }
+
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_GcsDestination_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_GcsDestination_fieldAccessorTable;
+
+  public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
+    return descriptor;
+  }
+
+  private static com.google.protobuf.Descriptors.FileDescriptor descriptor;
+
+  static {
+    java.lang.String[] descriptorData = {
+      "\n,google/cloud/dialogflow/cx/v3beta1/gcs"
+          + ".proto\022\"google.cloud.dialogflow.cx.v3bet"
+          + "a1\032\037google/api/field_behavior.proto\"\"\n\016G"
+          + "csDestination\022\020\n\003uri\030\001 \001(\tB\003\340A\002B\302\001\n&com."
+          + "google.cloud.dialogflow.cx.v3beta1B\010GcsP"
+          + "rotoP\001Z6cloud.google.com/go/dialogflow/c"
+          + "x/apiv3beta1/cxpb;cxpb\370\001\001\242\002\002DF\252\002\"Google."
+          + "Cloud.Dialogflow.Cx.V3Beta1\352\002&Google::Cl"
+          + "oud::Dialogflow::CX::V3beta1b\006proto3"
+    };
+    descriptor =
+        com.google.protobuf.Descriptors.FileDescriptor.internalBuildGeneratedFileFrom(
+            descriptorData,
+            new com.google.protobuf.Descriptors.FileDescriptor[] {
+              com.google.api.FieldBehaviorProto.getDescriptor(),
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_GcsDestination_descriptor =
+        getDescriptor().getMessageTypes().get(0);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_GcsDestination_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_GcsDestination_descriptor,
+            new java.lang.String[] {
+              "Uri",
+            });
+    com.google.protobuf.ExtensionRegistry registry =
+        com.google.protobuf.ExtensionRegistry.newInstance();
+    registry.add(com.google.api.FieldBehaviorProto.fieldBehavior);
+    com.google.protobuf.Descriptors.FileDescriptor.internalUpdateFileDescriptor(
+        descriptor, registry);
+    com.google.api.FieldBehaviorProto.getDescriptor();
+  }
+
+  // @@protoc_insertion_point(outer_class_scope)
+}
diff --git a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/TextToSpeechSettings.java b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/TextToSpeechSettings.java
new file mode 100644
index 000000000000..46bb86d9208b
--- /dev/null
+++ b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/TextToSpeechSettings.java
@@ -0,0 +1,876 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/audio_config.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * Settings related to speech generating.
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.TextToSpeechSettings}
+ */
+public final class TextToSpeechSettings extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.TextToSpeechSettings)
+    TextToSpeechSettingsOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use TextToSpeechSettings.newBuilder() to construct.
+  private TextToSpeechSettings(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private TextToSpeechSettings() {}
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new TextToSpeechSettings();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.AudioConfigProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_TextToSpeechSettings_descriptor;
+  }
+
+  @SuppressWarnings({"rawtypes"})
+  @java.lang.Override
+  protected com.google.protobuf.MapField internalGetMapField(int number) {
+    switch (number) {
+      case 1:
+        return internalGetSynthesizeSpeechConfigs();
+      default:
+        throw new RuntimeException("Invalid map field number: " + number);
+    }
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.AudioConfigProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_TextToSpeechSettings_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.TextToSpeechSettings.class,
+            com.google.cloud.dialogflow.cx.v3beta1.TextToSpeechSettings.Builder.class);
+  }
+
+  public static final int SYNTHESIZE_SPEECH_CONFIGS_FIELD_NUMBER = 1;
+
+  private static final class SynthesizeSpeechConfigsDefaultEntryHolder {
+    static final com.google.protobuf.MapEntry<
+            java.lang.String, com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig>
+        defaultEntry =
+            com.google.protobuf.MapEntry
+                .<java.lang.String, com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig>
+                    newDefaultInstance(
+                        com.google.cloud.dialogflow.cx.v3beta1.AudioConfigProto
+                            .internal_static_google_cloud_dialogflow_cx_v3beta1_TextToSpeechSettings_SynthesizeSpeechConfigsEntry_descriptor,
+                        com.google.protobuf.WireFormat.FieldType.STRING,
+                        "",
+                        com.google.protobuf.WireFormat.FieldType.MESSAGE,
+                        com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig
+                            .getDefaultInstance());
+  }
+
+  @SuppressWarnings("serial")
+  private com.google.protobuf.MapField<
+          java.lang.String, com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig>
+      synthesizeSpeechConfigs_;
+
+  private com.google.protobuf.MapField<
+          java.lang.String, com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig>
+      internalGetSynthesizeSpeechConfigs() {
+    if (synthesizeSpeechConfigs_ == null) {
+      return com.google.protobuf.MapField.emptyMapField(
+          SynthesizeSpeechConfigsDefaultEntryHolder.defaultEntry);
+    }
+    return synthesizeSpeechConfigs_;
+  }
+
+  public int getSynthesizeSpeechConfigsCount() {
+    return internalGetSynthesizeSpeechConfigs().getMap().size();
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Configuration of how speech should be synthesized, mapping from
+   * language (https://dialogflow.com/docs/reference/language) to
+   * SynthesizeSpeechConfig.
+   * </pre>
+   *
+   * <code>
+   * map&lt;string, .google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig&gt; synthesize_speech_configs = 1;
+   * </code>
+   */
+  @java.lang.Override
+  public boolean containsSynthesizeSpeechConfigs(java.lang.String key) {
+    if (key == null) {
+      throw new NullPointerException("map key");
+    }
+    return internalGetSynthesizeSpeechConfigs().getMap().containsKey(key);
+  }
+  /** Use {@link #getSynthesizeSpeechConfigsMap()} instead. */
+  @java.lang.Override
+  @java.lang.Deprecated
+  public java.util.Map<
+          java.lang.String, com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig>
+      getSynthesizeSpeechConfigs() {
+    return getSynthesizeSpeechConfigsMap();
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Configuration of how speech should be synthesized, mapping from
+   * language (https://dialogflow.com/docs/reference/language) to
+   * SynthesizeSpeechConfig.
+   * </pre>
+   *
+   * <code>
+   * map&lt;string, .google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig&gt; synthesize_speech_configs = 1;
+   * </code>
+   */
+  @java.lang.Override
+  public java.util.Map<
+          java.lang.String, com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig>
+      getSynthesizeSpeechConfigsMap() {
+    return internalGetSynthesizeSpeechConfigs().getMap();
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Configuration of how speech should be synthesized, mapping from
+   * language (https://dialogflow.com/docs/reference/language) to
+   * SynthesizeSpeechConfig.
+   * </pre>
+   *
+   * <code>
+   * map&lt;string, .google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig&gt; synthesize_speech_configs = 1;
+   * </code>
+   */
+  @java.lang.Override
+  public /* nullable */ com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig
+      getSynthesizeSpeechConfigsOrDefault(
+          java.lang.String key,
+          /* nullable */
+          com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig defaultValue) {
+    if (key == null) {
+      throw new NullPointerException("map key");
+    }
+    java.util.Map<java.lang.String, com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig>
+        map = internalGetSynthesizeSpeechConfigs().getMap();
+    return map.containsKey(key) ? map.get(key) : defaultValue;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Configuration of how speech should be synthesized, mapping from
+   * language (https://dialogflow.com/docs/reference/language) to
+   * SynthesizeSpeechConfig.
+   * </pre>
+   *
+   * <code>
+   * map&lt;string, .google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig&gt; synthesize_speech_configs = 1;
+   * </code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig
+      getSynthesizeSpeechConfigsOrThrow(java.lang.String key) {
+    if (key == null) {
+      throw new NullPointerException("map key");
+    }
+    java.util.Map<java.lang.String, com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig>
+        map = internalGetSynthesizeSpeechConfigs().getMap();
+    if (!map.containsKey(key)) {
+      throw new java.lang.IllegalArgumentException();
+    }
+    return map.get(key);
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    com.google.protobuf.GeneratedMessageV3.serializeStringMapTo(
+        output,
+        internalGetSynthesizeSpeechConfigs(),
+        SynthesizeSpeechConfigsDefaultEntryHolder.defaultEntry,
+        1);
+    getUnknownFields().writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    for (java.util.Map.Entry<
+            java.lang.String, com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig>
+        entry : internalGetSynthesizeSpeechConfigs().getMap().entrySet()) {
+      com.google.protobuf.MapEntry<
+              java.lang.String, com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig>
+          synthesizeSpeechConfigs__ =
+              SynthesizeSpeechConfigsDefaultEntryHolder.defaultEntry
+                  .newBuilderForType()
+                  .setKey(entry.getKey())
+                  .setValue(entry.getValue())
+                  .build();
+      size +=
+          com.google.protobuf.CodedOutputStream.computeMessageSize(1, synthesizeSpeechConfigs__);
+    }
+    size += getUnknownFields().getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.TextToSpeechSettings)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.TextToSpeechSettings other =
+        (com.google.cloud.dialogflow.cx.v3beta1.TextToSpeechSettings) obj;
+
+    if (!internalGetSynthesizeSpeechConfigs().equals(other.internalGetSynthesizeSpeechConfigs()))
+      return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    if (!internalGetSynthesizeSpeechConfigs().getMap().isEmpty()) {
+      hash = (37 * hash) + SYNTHESIZE_SPEECH_CONFIGS_FIELD_NUMBER;
+      hash = (53 * hash) + internalGetSynthesizeSpeechConfigs().hashCode();
+    }
+    hash = (29 * hash) + getUnknownFields().hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.TextToSpeechSettings parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.TextToSpeechSettings parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.TextToSpeechSettings parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.TextToSpeechSettings parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.TextToSpeechSettings parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.TextToSpeechSettings parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.TextToSpeechSettings parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.TextToSpeechSettings parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.TextToSpeechSettings parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.TextToSpeechSettings parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.TextToSpeechSettings parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.TextToSpeechSettings parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.TextToSpeechSettings prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Settings related to speech generating.
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.TextToSpeechSettings}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.TextToSpeechSettings)
+      com.google.cloud.dialogflow.cx.v3beta1.TextToSpeechSettingsOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.AudioConfigProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_TextToSpeechSettings_descriptor;
+    }
+
+    @SuppressWarnings({"rawtypes"})
+    protected com.google.protobuf.MapField internalGetMapField(int number) {
+      switch (number) {
+        case 1:
+          return internalGetSynthesizeSpeechConfigs();
+        default:
+          throw new RuntimeException("Invalid map field number: " + number);
+      }
+    }
+
+    @SuppressWarnings({"rawtypes"})
+    protected com.google.protobuf.MapField internalGetMutableMapField(int number) {
+      switch (number) {
+        case 1:
+          return internalGetMutableSynthesizeSpeechConfigs();
+        default:
+          throw new RuntimeException("Invalid map field number: " + number);
+      }
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.AudioConfigProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_TextToSpeechSettings_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.TextToSpeechSettings.class,
+              com.google.cloud.dialogflow.cx.v3beta1.TextToSpeechSettings.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.TextToSpeechSettings.newBuilder()
+    private Builder() {}
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      bitField0_ = 0;
+      internalGetMutableSynthesizeSpeechConfigs().clear();
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.AudioConfigProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_TextToSpeechSettings_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.TextToSpeechSettings getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.TextToSpeechSettings.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.TextToSpeechSettings build() {
+      com.google.cloud.dialogflow.cx.v3beta1.TextToSpeechSettings result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.TextToSpeechSettings buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.TextToSpeechSettings result =
+          new com.google.cloud.dialogflow.cx.v3beta1.TextToSpeechSettings(this);
+      if (bitField0_ != 0) {
+        buildPartial0(result);
+      }
+      onBuilt();
+      return result;
+    }
+
+    private void buildPartial0(com.google.cloud.dialogflow.cx.v3beta1.TextToSpeechSettings result) {
+      int from_bitField0_ = bitField0_;
+      if (((from_bitField0_ & 0x00000001) != 0)) {
+        result.synthesizeSpeechConfigs_ = internalGetSynthesizeSpeechConfigs();
+        result.synthesizeSpeechConfigs_.makeImmutable();
+      }
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.TextToSpeechSettings) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.TextToSpeechSettings) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.TextToSpeechSettings other) {
+      if (other == com.google.cloud.dialogflow.cx.v3beta1.TextToSpeechSettings.getDefaultInstance())
+        return this;
+      internalGetMutableSynthesizeSpeechConfigs()
+          .mergeFrom(other.internalGetSynthesizeSpeechConfigs());
+      bitField0_ |= 0x00000001;
+      this.mergeUnknownFields(other.getUnknownFields());
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
+      try {
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                com.google.protobuf.MapEntry<
+                        java.lang.String,
+                        com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig>
+                    synthesizeSpeechConfigs__ =
+                        input.readMessage(
+                            SynthesizeSpeechConfigsDefaultEntryHolder.defaultEntry
+                                .getParserForType(),
+                            extensionRegistry);
+                internalGetMutableSynthesizeSpeechConfigs()
+                    .getMutableMap()
+                    .put(synthesizeSpeechConfigs__.getKey(), synthesizeSpeechConfigs__.getValue());
+                bitField0_ |= 0x00000001;
+                break;
+              } // case 10
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        throw e.unwrapIOException();
+      } finally {
+        onChanged();
+      } // finally
+      return this;
+    }
+
+    private int bitField0_;
+
+    private com.google.protobuf.MapField<
+            java.lang.String, com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig>
+        synthesizeSpeechConfigs_;
+
+    private com.google.protobuf.MapField<
+            java.lang.String, com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig>
+        internalGetSynthesizeSpeechConfigs() {
+      if (synthesizeSpeechConfigs_ == null) {
+        return com.google.protobuf.MapField.emptyMapField(
+            SynthesizeSpeechConfigsDefaultEntryHolder.defaultEntry);
+      }
+      return synthesizeSpeechConfigs_;
+    }
+
+    private com.google.protobuf.MapField<
+            java.lang.String, com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig>
+        internalGetMutableSynthesizeSpeechConfigs() {
+      if (synthesizeSpeechConfigs_ == null) {
+        synthesizeSpeechConfigs_ =
+            com.google.protobuf.MapField.newMapField(
+                SynthesizeSpeechConfigsDefaultEntryHolder.defaultEntry);
+      }
+      if (!synthesizeSpeechConfigs_.isMutable()) {
+        synthesizeSpeechConfigs_ = synthesizeSpeechConfigs_.copy();
+      }
+      bitField0_ |= 0x00000001;
+      onChanged();
+      return synthesizeSpeechConfigs_;
+    }
+
+    public int getSynthesizeSpeechConfigsCount() {
+      return internalGetSynthesizeSpeechConfigs().getMap().size();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Configuration of how speech should be synthesized, mapping from
+     * language (https://dialogflow.com/docs/reference/language) to
+     * SynthesizeSpeechConfig.
+     * </pre>
+     *
+     * <code>
+     * map&lt;string, .google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig&gt; synthesize_speech_configs = 1;
+     * </code>
+     */
+    @java.lang.Override
+    public boolean containsSynthesizeSpeechConfigs(java.lang.String key) {
+      if (key == null) {
+        throw new NullPointerException("map key");
+      }
+      return internalGetSynthesizeSpeechConfigs().getMap().containsKey(key);
+    }
+    /** Use {@link #getSynthesizeSpeechConfigsMap()} instead. */
+    @java.lang.Override
+    @java.lang.Deprecated
+    public java.util.Map<
+            java.lang.String, com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig>
+        getSynthesizeSpeechConfigs() {
+      return getSynthesizeSpeechConfigsMap();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Configuration of how speech should be synthesized, mapping from
+     * language (https://dialogflow.com/docs/reference/language) to
+     * SynthesizeSpeechConfig.
+     * </pre>
+     *
+     * <code>
+     * map&lt;string, .google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig&gt; synthesize_speech_configs = 1;
+     * </code>
+     */
+    @java.lang.Override
+    public java.util.Map<
+            java.lang.String, com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig>
+        getSynthesizeSpeechConfigsMap() {
+      return internalGetSynthesizeSpeechConfigs().getMap();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Configuration of how speech should be synthesized, mapping from
+     * language (https://dialogflow.com/docs/reference/language) to
+     * SynthesizeSpeechConfig.
+     * </pre>
+     *
+     * <code>
+     * map&lt;string, .google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig&gt; synthesize_speech_configs = 1;
+     * </code>
+     */
+    @java.lang.Override
+    public /* nullable */ com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig
+        getSynthesizeSpeechConfigsOrDefault(
+            java.lang.String key,
+            /* nullable */
+            com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig defaultValue) {
+      if (key == null) {
+        throw new NullPointerException("map key");
+      }
+      java.util.Map<java.lang.String, com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig>
+          map = internalGetSynthesizeSpeechConfigs().getMap();
+      return map.containsKey(key) ? map.get(key) : defaultValue;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Configuration of how speech should be synthesized, mapping from
+     * language (https://dialogflow.com/docs/reference/language) to
+     * SynthesizeSpeechConfig.
+     * </pre>
+     *
+     * <code>
+     * map&lt;string, .google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig&gt; synthesize_speech_configs = 1;
+     * </code>
+     */
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig
+        getSynthesizeSpeechConfigsOrThrow(java.lang.String key) {
+      if (key == null) {
+        throw new NullPointerException("map key");
+      }
+      java.util.Map<java.lang.String, com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig>
+          map = internalGetSynthesizeSpeechConfigs().getMap();
+      if (!map.containsKey(key)) {
+        throw new java.lang.IllegalArgumentException();
+      }
+      return map.get(key);
+    }
+
+    public Builder clearSynthesizeSpeechConfigs() {
+      bitField0_ = (bitField0_ & ~0x00000001);
+      internalGetMutableSynthesizeSpeechConfigs().getMutableMap().clear();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Configuration of how speech should be synthesized, mapping from
+     * language (https://dialogflow.com/docs/reference/language) to
+     * SynthesizeSpeechConfig.
+     * </pre>
+     *
+     * <code>
+     * map&lt;string, .google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig&gt; synthesize_speech_configs = 1;
+     * </code>
+     */
+    public Builder removeSynthesizeSpeechConfigs(java.lang.String key) {
+      if (key == null) {
+        throw new NullPointerException("map key");
+      }
+      internalGetMutableSynthesizeSpeechConfigs().getMutableMap().remove(key);
+      return this;
+    }
+    /** Use alternate mutation accessors instead. */
+    @java.lang.Deprecated
+    public java.util.Map<
+            java.lang.String, com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig>
+        getMutableSynthesizeSpeechConfigs() {
+      bitField0_ |= 0x00000001;
+      return internalGetMutableSynthesizeSpeechConfigs().getMutableMap();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Configuration of how speech should be synthesized, mapping from
+     * language (https://dialogflow.com/docs/reference/language) to
+     * SynthesizeSpeechConfig.
+     * </pre>
+     *
+     * <code>
+     * map&lt;string, .google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig&gt; synthesize_speech_configs = 1;
+     * </code>
+     */
+    public Builder putSynthesizeSpeechConfigs(
+        java.lang.String key, com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig value) {
+      if (key == null) {
+        throw new NullPointerException("map key");
+      }
+      if (value == null) {
+        throw new NullPointerException("map value");
+      }
+      internalGetMutableSynthesizeSpeechConfigs().getMutableMap().put(key, value);
+      bitField0_ |= 0x00000001;
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Configuration of how speech should be synthesized, mapping from
+     * language (https://dialogflow.com/docs/reference/language) to
+     * SynthesizeSpeechConfig.
+     * </pre>
+     *
+     * <code>
+     * map&lt;string, .google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig&gt; synthesize_speech_configs = 1;
+     * </code>
+     */
+    public Builder putAllSynthesizeSpeechConfigs(
+        java.util.Map<
+                java.lang.String, com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig>
+            values) {
+      internalGetMutableSynthesizeSpeechConfigs().getMutableMap().putAll(values);
+      bitField0_ |= 0x00000001;
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.TextToSpeechSettings)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.TextToSpeechSettings)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.TextToSpeechSettings DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.TextToSpeechSettings();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.TextToSpeechSettings getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<TextToSpeechSettings> PARSER =
+      new com.google.protobuf.AbstractParser<TextToSpeechSettings>() {
+        @java.lang.Override
+        public TextToSpeechSettings parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
+        }
+      };
+
+  public static com.google.protobuf.Parser<TextToSpeechSettings> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<TextToSpeechSettings> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.TextToSpeechSettings getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/TextToSpeechSettingsOrBuilder.java b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/TextToSpeechSettingsOrBuilder.java
new file mode 100644
index 000000000000..cab37c599cbc
--- /dev/null
+++ b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/TextToSpeechSettingsOrBuilder.java
@@ -0,0 +1,106 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/audio_config.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface TextToSpeechSettingsOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.TextToSpeechSettings)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * Configuration of how speech should be synthesized, mapping from
+   * language (https://dialogflow.com/docs/reference/language) to
+   * SynthesizeSpeechConfig.
+   * </pre>
+   *
+   * <code>
+   * map&lt;string, .google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig&gt; synthesize_speech_configs = 1;
+   * </code>
+   */
+  int getSynthesizeSpeechConfigsCount();
+  /**
+   *
+   *
+   * <pre>
+   * Configuration of how speech should be synthesized, mapping from
+   * language (https://dialogflow.com/docs/reference/language) to
+   * SynthesizeSpeechConfig.
+   * </pre>
+   *
+   * <code>
+   * map&lt;string, .google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig&gt; synthesize_speech_configs = 1;
+   * </code>
+   */
+  boolean containsSynthesizeSpeechConfigs(java.lang.String key);
+  /** Use {@link #getSynthesizeSpeechConfigsMap()} instead. */
+  @java.lang.Deprecated
+  java.util.Map<java.lang.String, com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig>
+      getSynthesizeSpeechConfigs();
+  /**
+   *
+   *
+   * <pre>
+   * Configuration of how speech should be synthesized, mapping from
+   * language (https://dialogflow.com/docs/reference/language) to
+   * SynthesizeSpeechConfig.
+   * </pre>
+   *
+   * <code>
+   * map&lt;string, .google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig&gt; synthesize_speech_configs = 1;
+   * </code>
+   */
+  java.util.Map<java.lang.String, com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig>
+      getSynthesizeSpeechConfigsMap();
+  /**
+   *
+   *
+   * <pre>
+   * Configuration of how speech should be synthesized, mapping from
+   * language (https://dialogflow.com/docs/reference/language) to
+   * SynthesizeSpeechConfig.
+   * </pre>
+   *
+   * <code>
+   * map&lt;string, .google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig&gt; synthesize_speech_configs = 1;
+   * </code>
+   */
+  /* nullable */
+  com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig getSynthesizeSpeechConfigsOrDefault(
+      java.lang.String key,
+      /* nullable */
+      com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig defaultValue);
+  /**
+   *
+   *
+   * <pre>
+   * Configuration of how speech should be synthesized, mapping from
+   * language (https://dialogflow.com/docs/reference/language) to
+   * SynthesizeSpeechConfig.
+   * </pre>
+   *
+   * <code>
+   * map&lt;string, .google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig&gt; synthesize_speech_configs = 1;
+   * </code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig getSynthesizeSpeechConfigsOrThrow(
+      java.lang.String key);
+}
diff --git a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/VersionProto.java b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/VersionProto.java
index 76e52d9ef7a2..c44b0d6596cc 100644
--- a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/VersionProto.java
+++ b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/VersionProto.java
@@ -88,99 +88,100 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
           + "o\032-google/cloud/dialogflow/cx/v3beta1/fl"
           + "ow.proto\032#google/longrunning/operations."
           + "proto\032\033google/protobuf/empty.proto\032 goog"
-          + "le/protobuf/field_mask.proto\032\037google/pro"
-          + "tobuf/timestamp.proto\"Y\n\036CreateVersionOp"
-          + "erationMetadata\0227\n\007version\030\001 \001(\tB&\372A#\n!d"
-          + "ialogflow.googleapis.com/Version\"\330\003\n\007Ver"
-          + "sion\022\014\n\004name\030\001 \001(\t\022\031\n\014display_name\030\002 \001(\t"
-          + "B\003\340A\002\022\023\n\013description\030\003 \001(\t\022J\n\014nlu_settin"
-          + "gs\030\004 \001(\0132/.google.cloud.dialogflow.cx.v3"
-          + "beta1.NluSettingsB\003\340A\003\0224\n\013create_time\030\005 "
-          + "\001(\0132\032.google.protobuf.TimestampB\003\340A\003\022E\n\005"
-          + "state\030\006 \001(\01621.google.cloud.dialogflow.cx"
-          + ".v3beta1.Version.StateB\003\340A\003\"F\n\005State\022\025\n\021"
-          + "STATE_UNSPECIFIED\020\000\022\013\n\007RUNNING\020\001\022\r\n\tSUCC"
-          + "EEDED\020\002\022\n\n\006FAILED\020\003:~\352A{\n!dialogflow.goo"
-          + "gleapis.com/Version\022Vprojects/{project}/"
-          + "locations/{location}/agents/{agent}/flow"
-          + "s/{flow}/versions/{version}\"w\n\023ListVersi"
-          + "onsRequest\0229\n\006parent\030\001 \001(\tB)\340A\002\372A#\022!dial"
-          + "ogflow.googleapis.com/Version\022\021\n\tpage_si"
-          + "ze\030\002 \001(\005\022\022\n\npage_token\030\003 \001(\t\"n\n\024ListVers"
-          + "ionsResponse\022=\n\010versions\030\001 \003(\0132+.google."
-          + "cloud.dialogflow.cx.v3beta1.Version\022\027\n\017n"
-          + "ext_page_token\030\002 \001(\t\"L\n\021GetVersionReques"
-          + "t\0227\n\004name\030\001 \001(\tB)\340A\002\372A#\n!dialogflow.goog"
-          + "leapis.com/Version\"\224\001\n\024CreateVersionRequ"
-          + "est\0229\n\006parent\030\001 \001(\tB)\340A\002\372A#\022!dialogflow."
-          + "googleapis.com/Version\022A\n\007version\030\002 \001(\0132"
-          + "+.google.cloud.dialogflow.cx.v3beta1.Ver"
-          + "sionB\003\340A\002\"\217\001\n\024UpdateVersionRequest\022A\n\007ve"
-          + "rsion\030\001 \001(\0132+.google.cloud.dialogflow.cx"
-          + ".v3beta1.VersionB\003\340A\002\0224\n\013update_mask\030\002 \001"
-          + "(\0132\032.google.protobuf.FieldMaskB\003\340A\002\"O\n\024D"
-          + "eleteVersionRequest\0227\n\004name\030\001 \001(\tB)\340A\002\372A"
-          + "#\n!dialogflow.googleapis.com/Version\"u\n\022"
-          + "LoadVersionRequest\0227\n\004name\030\001 \001(\tB)\340A\002\372A#"
-          + "\n!dialogflow.googleapis.com/Version\022&\n\036a"
-          + "llow_override_agent_resources\030\002 \001(\010\"\263\001\n\026"
-          + "CompareVersionsRequest\022?\n\014base_version\030\001"
-          + " \001(\tB)\340A\002\372A#\n!dialogflow.googleapis.com/"
-          + "Version\022A\n\016target_version\030\002 \001(\tB)\340A\002\372A#\n"
-          + "!dialogflow.googleapis.com/Version\022\025\n\rla"
-          + "nguage_code\030\003 \001(\t\"\223\001\n\027CompareVersionsRes"
-          + "ponse\022!\n\031base_version_content_json\030\001 \001(\t"
-          + "\022#\n\033target_version_content_json\030\002 \001(\t\0220\n"
-          + "\014compare_time\030\003 \001(\0132\032.google.protobuf.Ti"
-          + "mestamp2\274\r\n\010Versions\022\326\001\n\014ListVersions\0227."
-          + "google.cloud.dialogflow.cx.v3beta1.ListV"
-          + "ersionsRequest\0328.google.cloud.dialogflow"
-          + ".cx.v3beta1.ListVersionsResponse\"S\202\323\344\223\002D"
-          + "\022B/v3beta1/{parent=projects/*/locations/"
-          + "*/agents/*/flows/*}/versions\332A\006parent\022\303\001"
-          + "\n\nGetVersion\0225.google.cloud.dialogflow.c"
-          + "x.v3beta1.GetVersionRequest\032+.google.clo"
-          + "ud.dialogflow.cx.v3beta1.Version\"Q\202\323\344\223\002D"
-          + "\022B/v3beta1/{name=projects/*/locations/*/"
-          + "agents/*/flows/*/versions/*}\332A\004name\022\373\001\n\r"
-          + "CreateVersion\0228.google.cloud.dialogflow."
-          + "cx.v3beta1.CreateVersionRequest\032\035.google"
-          + ".longrunning.Operation\"\220\001\202\323\344\223\002M\"B/v3beta"
-          + "1/{parent=projects/*/locations/*/agents/"
-          + "*/flows/*}/versions:\007version\332A\016parent,ve"
-          + "rsion\312A)\n\007Version\022\036CreateVersionOperatio"
-          + "nMetadata\022\351\001\n\rUpdateVersion\0228.google.clo"
-          + "ud.dialogflow.cx.v3beta1.UpdateVersionRe"
-          + "quest\032+.google.cloud.dialogflow.cx.v3bet"
-          + "a1.Version\"q\202\323\344\223\002U2J/v3beta1/{version.na"
-          + "me=projects/*/locations/*/agents/*/flows"
-          + "/*/versions/*}:\007version\332A\023version,update"
-          + "_mask\022\264\001\n\rDeleteVersion\0228.google.cloud.d"
-          + "ialogflow.cx.v3beta1.DeleteVersionReques"
-          + "t\032\026.google.protobuf.Empty\"Q\202\323\344\223\002D*B/v3be"
-          + "ta1/{name=projects/*/locations/*/agents/"
-          + "*/flows/*/versions/*}\332A\004name\022\362\001\n\013LoadVer"
-          + "sion\0226.google.cloud.dialogflow.cx.v3beta"
-          + "1.LoadVersionRequest\032\035.google.longrunnin"
-          + "g.Operation\"\213\001\202\323\344\223\002L\"G/v3beta1/{name=pro"
+          + "le/protobuf/field_mask.proto\032\034google/pro"
+          + "tobuf/struct.proto\032\037google/protobuf/time"
+          + "stamp.proto\"Y\n\036CreateVersionOperationMet"
+          + "adata\0227\n\007version\030\001 \001(\tB&\372A#\n!dialogflow."
+          + "googleapis.com/Version\"\330\003\n\007Version\022\014\n\004na"
+          + "me\030\001 \001(\t\022\031\n\014display_name\030\002 \001(\tB\003\340A\002\022\023\n\013d"
+          + "escription\030\003 \001(\t\022J\n\014nlu_settings\030\004 \001(\0132/"
+          + ".google.cloud.dialogflow.cx.v3beta1.NluS"
+          + "ettingsB\003\340A\003\0224\n\013create_time\030\005 \001(\0132\032.goog"
+          + "le.protobuf.TimestampB\003\340A\003\022E\n\005state\030\006 \001("
+          + "\01621.google.cloud.dialogflow.cx.v3beta1.V"
+          + "ersion.StateB\003\340A\003\"F\n\005State\022\025\n\021STATE_UNSP"
+          + "ECIFIED\020\000\022\013\n\007RUNNING\020\001\022\r\n\tSUCCEEDED\020\002\022\n\n"
+          + "\006FAILED\020\003:~\352A{\n!dialogflow.googleapis.co"
+          + "m/Version\022Vprojects/{project}/locations/"
+          + "{location}/agents/{agent}/flows/{flow}/v"
+          + "ersions/{version}\"w\n\023ListVersionsRequest"
+          + "\0229\n\006parent\030\001 \001(\tB)\340A\002\372A#\022!dialogflow.goo"
+          + "gleapis.com/Version\022\021\n\tpage_size\030\002 \001(\005\022\022"
+          + "\n\npage_token\030\003 \001(\t\"n\n\024ListVersionsRespon"
+          + "se\022=\n\010versions\030\001 \003(\0132+.google.cloud.dial"
+          + "ogflow.cx.v3beta1.Version\022\027\n\017next_page_t"
+          + "oken\030\002 \001(\t\"L\n\021GetVersionRequest\0227\n\004name\030"
+          + "\001 \001(\tB)\340A\002\372A#\n!dialogflow.googleapis.com"
+          + "/Version\"\224\001\n\024CreateVersionRequest\0229\n\006par"
+          + "ent\030\001 \001(\tB)\340A\002\372A#\022!dialogflow.googleapis"
+          + ".com/Version\022A\n\007version\030\002 \001(\0132+.google.c"
+          + "loud.dialogflow.cx.v3beta1.VersionB\003\340A\002\""
+          + "\217\001\n\024UpdateVersionRequest\022A\n\007version\030\001 \001("
+          + "\0132+.google.cloud.dialogflow.cx.v3beta1.V"
+          + "ersionB\003\340A\002\0224\n\013update_mask\030\002 \001(\0132\032.googl"
+          + "e.protobuf.FieldMaskB\003\340A\002\"O\n\024DeleteVersi"
+          + "onRequest\0227\n\004name\030\001 \001(\tB)\340A\002\372A#\n!dialogf"
+          + "low.googleapis.com/Version\"u\n\022LoadVersio"
+          + "nRequest\0227\n\004name\030\001 \001(\tB)\340A\002\372A#\n!dialogfl"
+          + "ow.googleapis.com/Version\022&\n\036allow_overr"
+          + "ide_agent_resources\030\002 \001(\010\"\263\001\n\026CompareVer"
+          + "sionsRequest\022?\n\014base_version\030\001 \001(\tB)\340A\002\372"
+          + "A#\n!dialogflow.googleapis.com/Version\022A\n"
+          + "\016target_version\030\002 \001(\tB)\340A\002\372A#\n!dialogflo"
+          + "w.googleapis.com/Version\022\025\n\rlanguage_cod"
+          + "e\030\003 \001(\t\"\223\001\n\027CompareVersionsResponse\022!\n\031b"
+          + "ase_version_content_json\030\001 \001(\t\022#\n\033target"
+          + "_version_content_json\030\002 \001(\t\0220\n\014compare_t"
+          + "ime\030\003 \001(\0132\032.google.protobuf.Timestamp2\274\r"
+          + "\n\010Versions\022\326\001\n\014ListVersions\0227.google.clo"
+          + "ud.dialogflow.cx.v3beta1.ListVersionsReq"
+          + "uest\0328.google.cloud.dialogflow.cx.v3beta"
+          + "1.ListVersionsResponse\"S\202\323\344\223\002D\022B/v3beta1"
+          + "/{parent=projects/*/locations/*/agents/*"
+          + "/flows/*}/versions\332A\006parent\022\303\001\n\nGetVersi"
+          + "on\0225.google.cloud.dialogflow.cx.v3beta1."
+          + "GetVersionRequest\032+.google.cloud.dialogf"
+          + "low.cx.v3beta1.Version\"Q\202\323\344\223\002D\022B/v3beta1"
+          + "/{name=projects/*/locations/*/agents/*/f"
+          + "lows/*/versions/*}\332A\004name\022\373\001\n\rCreateVers"
+          + "ion\0228.google.cloud.dialogflow.cx.v3beta1"
+          + ".CreateVersionRequest\032\035.google.longrunni"
+          + "ng.Operation\"\220\001\202\323\344\223\002M\"B/v3beta1/{parent="
+          + "projects/*/locations/*/agents/*/flows/*}"
+          + "/versions:\007version\332A\016parent,version\312A)\n\007"
+          + "Version\022\036CreateVersionOperationMetadata\022"
+          + "\351\001\n\rUpdateVersion\0228.google.cloud.dialogf"
+          + "low.cx.v3beta1.UpdateVersionRequest\032+.go"
+          + "ogle.cloud.dialogflow.cx.v3beta1.Version"
+          + "\"q\202\323\344\223\002U2J/v3beta1/{version.name=project"
+          + "s/*/locations/*/agents/*/flows/*/version"
+          + "s/*}:\007version\332A\023version,update_mask\022\264\001\n\r"
+          + "DeleteVersion\0228.google.cloud.dialogflow."
+          + "cx.v3beta1.DeleteVersionRequest\032\026.google"
+          + ".protobuf.Empty\"Q\202\323\344\223\002D*B/v3beta1/{name="
+          + "projects/*/locations/*/agents/*/flows/*/"
+          + "versions/*}\332A\004name\022\362\001\n\013LoadVersion\0226.goo"
+          + "gle.cloud.dialogflow.cx.v3beta1.LoadVers"
+          + "ionRequest\032\035.google.longrunning.Operatio"
+          + "n\"\213\001\202\323\344\223\002L\"G/v3beta1/{name=projects/*/lo"
+          + "cations/*/agents/*/flows/*/versions/*}:l"
+          + "oad:\001*\332A\004name\312A/\n\025google.protobuf.Empty\022"
+          + "\026google.protobuf.Struct\022\200\002\n\017CompareVersi"
+          + "ons\022:.google.cloud.dialogflow.cx.v3beta1"
+          + ".CompareVersionsRequest\032;.google.cloud.d"
+          + "ialogflow.cx.v3beta1.CompareVersionsResp"
+          + "onse\"t\202\323\344\223\002_\"Z/v3beta1/{base_version=pro"
           + "jects/*/locations/*/agents/*/flows/*/ver"
-          + "sions/*}:load:\001*\332A\004name\312A/\n\025google.proto"
-          + "buf.Empty\022\026google.protobuf.Struct\022\200\002\n\017Co"
-          + "mpareVersions\022:.google.cloud.dialogflow."
-          + "cx.v3beta1.CompareVersionsRequest\032;.goog"
-          + "le.cloud.dialogflow.cx.v3beta1.CompareVe"
-          + "rsionsResponse\"t\202\323\344\223\002_\"Z/v3beta1/{base_v"
-          + "ersion=projects/*/locations/*/agents/*/f"
-          + "lows/*/versions/*}:compareVersions:\001*\332A\014"
-          + "base_version\032x\312A\031dialogflow.googleapis.c"
-          + "om\322AYhttps://www.googleapis.com/auth/clo"
-          + "ud-platform,https://www.googleapis.com/a"
-          + "uth/dialogflowB\306\001\n&com.google.cloud.dial"
-          + "ogflow.cx.v3beta1B\014VersionProtoP\001Z6cloud"
-          + ".google.com/go/dialogflow/cx/apiv3beta1/"
-          + "cxpb;cxpb\370\001\001\242\002\002DF\252\002\"Google.Cloud.Dialogf"
-          + "low.Cx.V3Beta1\352\002&Google::Cloud::Dialogfl"
-          + "ow::CX::V3beta1b\006proto3"
+          + "sions/*}:compareVersions:\001*\332A\014base_versi"
+          + "on\032x\312A\031dialogflow.googleapis.com\322AYhttps"
+          + "://www.googleapis.com/auth/cloud-platfor"
+          + "m,https://www.googleapis.com/auth/dialog"
+          + "flowB\306\001\n&com.google.cloud.dialogflow.cx."
+          + "v3beta1B\014VersionProtoP\001Z6cloud.google.co"
+          + "m/go/dialogflow/cx/apiv3beta1/cxpb;cxpb\370"
+          + "\001\001\242\002\002DF\252\002\"Google.Cloud.Dialogflow.Cx.V3B"
+          + "eta1\352\002&Google::Cloud::Dialogflow::CX::V3"
+          + "beta1b\006proto3"
     };
     descriptor =
         com.google.protobuf.Descriptors.FileDescriptor.internalBuildGeneratedFileFrom(
@@ -194,6 +195,7 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
               com.google.longrunning.OperationsProto.getDescriptor(),
               com.google.protobuf.EmptyProto.getDescriptor(),
               com.google.protobuf.FieldMaskProto.getDescriptor(),
+              com.google.protobuf.StructProto.getDescriptor(),
               com.google.protobuf.TimestampProto.getDescriptor(),
             });
     internal_static_google_cloud_dialogflow_cx_v3beta1_CreateVersionOperationMetadata_descriptor =
@@ -304,6 +306,7 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
     com.google.longrunning.OperationsProto.getDescriptor();
     com.google.protobuf.EmptyProto.getDescriptor();
     com.google.protobuf.FieldMaskProto.getDescriptor();
+    com.google.protobuf.StructProto.getDescriptor();
     com.google.protobuf.TimestampProto.getDescriptor();
   }
 
diff --git a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/advanced_settings.proto b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/advanced_settings.proto
index 4b5ee62bd1f4..32e181b8a84b 100644
--- a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/advanced_settings.proto
+++ b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/advanced_settings.proto
@@ -17,6 +17,7 @@ syntax = "proto3";
 package google.cloud.dialogflow.cx.v3beta1;
 
 import "google/api/field_behavior.proto";
+import "google/cloud/dialogflow/cx/v3beta1/gcs.proto";
 
 option cc_enable_arenas = true;
 option csharp_namespace = "Google.Cloud.Dialogflow.Cx.V3Beta1";
@@ -48,6 +49,13 @@ message AdvancedSettings {
     bool enable_interaction_logging = 3;
   }
 
+  // If present, incoming audio is exported by Dialogflow to the configured
+  // Google Cloud Storage destination.
+  // Exposed at the following levels:
+  // - Agent level
+  // - Flow level
+  GcsDestination audio_export_gcs_destination = 2;
+
   // Settings for logging.
   // Settings for Dialogflow History, Contact Center messages, StackDriver logs,
   // and speech logging.
diff --git a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/agent.proto b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/agent.proto
index 96ce5cdd312a..d3f314ee4fa3 100644
--- a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/agent.proto
+++ b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/agent.proto
@@ -21,10 +21,12 @@ import "google/api/client.proto";
 import "google/api/field_behavior.proto";
 import "google/api/resource.proto";
 import "google/cloud/dialogflow/cx/v3beta1/advanced_settings.proto";
+import "google/cloud/dialogflow/cx/v3beta1/audio_config.proto";
 import "google/cloud/dialogflow/cx/v3beta1/flow.proto";
 import "google/longrunning/operations.proto";
 import "google/protobuf/empty.proto";
 import "google/protobuf/field_mask.proto";
+import "google/protobuf/struct.proto";
 
 option cc_enable_arenas = true;
 option csharp_namespace = "Google.Cloud.Dialogflow.Cx.V3Beta1";
@@ -266,6 +268,10 @@ message Agent {
   // Hierarchical advanced settings for this agent. The settings exposed at the
   // lower level overrides the settings exposed at the higher level.
   AdvancedSettings advanced_settings = 22;
+
+  // Settings on instructing the speech synthesizer on how to generate the
+  // output audio content.
+  TextToSpeechSettings text_to_speech_settings = 31;
 }
 
 // The request message for
diff --git a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/audio_config.proto b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/audio_config.proto
index bc8a5c5839a6..455b3695cb2a 100644
--- a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/audio_config.proto
+++ b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/audio_config.proto
@@ -316,3 +316,11 @@ message OutputAudioConfig {
   // Optional. Configuration of how speech should be synthesized.
   SynthesizeSpeechConfig synthesize_speech_config = 3;
 }
+
+// Settings related to speech generating.
+message TextToSpeechSettings {
+  // Configuration of how speech should be synthesized, mapping from
+  // language (https://dialogflow.com/docs/reference/language) to
+  // SynthesizeSpeechConfig.
+  map<string, SynthesizeSpeechConfig> synthesize_speech_configs = 1;
+}
diff --git a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/environment.proto b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/environment.proto
index b1822e2327f9..6b975bf997ac 100644
--- a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/environment.proto
+++ b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/environment.proto
@@ -25,6 +25,7 @@ import "google/cloud/dialogflow/cx/v3beta1/webhook.proto";
 import "google/longrunning/operations.proto";
 import "google/protobuf/empty.proto";
 import "google/protobuf/field_mask.proto";
+import "google/protobuf/struct.proto";
 import "google/protobuf/timestamp.proto";
 
 option cc_enable_arenas = true;
@@ -253,12 +254,11 @@ message Environment {
   // 500 characters. If exceeded, the request is rejected.
   string description = 3;
 
-  // Required. A list of configurations for flow versions. You should include
-  // version configs for all flows that are reachable from [`Start
+  // A list of configurations for flow versions. You should include version
+  // configs for all flows that are reachable from [`Start
   // Flow`][Agent.start_flow] in the agent. Otherwise, an error will be
   // returned.
-  repeated VersionConfig version_configs = 6
-      [(google.api.field_behavior) = REQUIRED];
+  repeated VersionConfig version_configs = 6;
 
   // Output only. Update time of this environment.
   google.protobuf.Timestamp update_time = 5
diff --git a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/flow.proto b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/flow.proto
index ded289e759cd..736ce1acdd46 100644
--- a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/flow.proto
+++ b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/flow.proto
@@ -25,6 +25,7 @@ import "google/cloud/dialogflow/cx/v3beta1/validation_message.proto";
 import "google/longrunning/operations.proto";
 import "google/protobuf/empty.proto";
 import "google/protobuf/field_mask.proto";
+import "google/protobuf/struct.proto";
 import "google/protobuf/timestamp.proto";
 
 option cc_enable_arenas = true;
diff --git a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/gcs.proto b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/gcs.proto
new file mode 100644
index 000000000000..19ed9a8f1ed7
--- /dev/null
+++ b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/gcs.proto
@@ -0,0 +1,39 @@
+// Copyright 2022 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+syntax = "proto3";
+
+package google.cloud.dialogflow.cx.v3beta1;
+
+import "google/api/field_behavior.proto";
+
+option cc_enable_arenas = true;
+option csharp_namespace = "Google.Cloud.Dialogflow.Cx.V3Beta1";
+option go_package = "cloud.google.com/go/dialogflow/cx/apiv3beta1/cxpb;cxpb";
+option java_multiple_files = true;
+option java_outer_classname = "GcsProto";
+option java_package = "com.google.cloud.dialogflow.cx.v3beta1";
+option objc_class_prefix = "DF";
+option ruby_package = "Google::Cloud::Dialogflow::CX::V3beta1";
+
+// Google Cloud Storage location for a Dialogflow operation that writes or
+// exports objects (e.g. exported agent or transcripts) outside of Dialogflow.
+message GcsDestination {
+  // Required. The Google Cloud Storage URI for the exported objects. A URI is
+  // of the form:
+  //   gs://bucket/object-name-or-prefix
+  // Whether a full object name, or just a prefix, its usage depends on the
+  // Dialogflow operation.
+  string uri = 1 [(google.api.field_behavior) = REQUIRED];
+}
diff --git a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/version.proto b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/version.proto
index 0a07206a4c69..52b58025be27 100644
--- a/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/version.proto
+++ b/java-dialogflow-cx/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/version.proto
@@ -24,6 +24,7 @@ import "google/cloud/dialogflow/cx/v3beta1/flow.proto";
 import "google/longrunning/operations.proto";
 import "google/protobuf/empty.proto";
 import "google/protobuf/field_mask.proto";
+import "google/protobuf/struct.proto";
 import "google/protobuf/timestamp.proto";
 
 option cc_enable_arenas = true;
diff --git a/java-dialogflow-cx/samples/snippets/generated/com/google/cloud/dialogflow/cx/v3/sessions/matchintent/AsyncMatchIntent.java b/java-dialogflow-cx/samples/snippets/generated/com/google/cloud/dialogflow/cx/v3/sessions/matchintent/AsyncMatchIntent.java
index b22a2cfcb25b..eb7a400f0742 100644
--- a/java-dialogflow-cx/samples/snippets/generated/com/google/cloud/dialogflow/cx/v3/sessions/matchintent/AsyncMatchIntent.java
+++ b/java-dialogflow-cx/samples/snippets/generated/com/google/cloud/dialogflow/cx/v3/sessions/matchintent/AsyncMatchIntent.java
@@ -46,6 +46,7 @@ public static void asyncMatchIntent() throws Exception {
                       .toString())
               .setQueryParams(QueryParameters.newBuilder().build())
               .setQueryInput(QueryInput.newBuilder().build())
+              .setPersistParameterChanges(true)
               .build();
       ApiFuture<MatchIntentResponse> future =
           sessionsClient.matchIntentCallable().futureCall(request);
diff --git a/java-dialogflow-cx/samples/snippets/generated/com/google/cloud/dialogflow/cx/v3/sessions/matchintent/SyncMatchIntent.java b/java-dialogflow-cx/samples/snippets/generated/com/google/cloud/dialogflow/cx/v3/sessions/matchintent/SyncMatchIntent.java
index e6d08eb3db31..e0f80080c135 100644
--- a/java-dialogflow-cx/samples/snippets/generated/com/google/cloud/dialogflow/cx/v3/sessions/matchintent/SyncMatchIntent.java
+++ b/java-dialogflow-cx/samples/snippets/generated/com/google/cloud/dialogflow/cx/v3/sessions/matchintent/SyncMatchIntent.java
@@ -45,6 +45,7 @@ public static void syncMatchIntent() throws Exception {
                       .toString())
               .setQueryParams(QueryParameters.newBuilder().build())
               .setQueryInput(QueryInput.newBuilder().build())
+              .setPersistParameterChanges(true)
               .build();
       MatchIntentResponse response = sessionsClient.matchIntent(request);
     }