diff --git a/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3/agent.proto b/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3/agent.proto
index 41c783e98bd..13368d0a90e 100644
--- a/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3/agent.proto
+++ b/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3/agent.proto
@@ -1,4 +1,4 @@
-// Copyright 2020 Google LLC
+// Copyright 2021 Google LLC
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
@@ -160,7 +160,7 @@ message Agent {
 
   // Immutable. The default language of the agent as a language tag.
   // See [Language
-  // Support](https://cloud.google.com/dialogflow/docs/reference/language)
+  // Support](https://cloud.google.com/dialogflow/cx/docs/reference/language)
   // for a list of the currently supported language codes.
   // This field cannot be set by the [Agents.UpdateAgent][google.cloud.dialogflow.cx.v3.Agents.UpdateAgent] method.
   string default_language_code = 3 [(google.api.field_behavior) = IMMUTABLE];
diff --git a/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3/audio_config.proto b/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3/audio_config.proto
index dd97ad933f0..dc9c911b93f 100644
--- a/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3/audio_config.proto
+++ b/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3/audio_config.proto
@@ -1,4 +1,4 @@
-// Copyright 2020 Google LLC
+// Copyright 2021 Google LLC
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
@@ -250,6 +250,22 @@ message SynthesizeSpeechConfig {
   VoiceSelectionParams voice = 4;
 }
 
+// Instructs the speech synthesizer how to generate the output audio content.
+message OutputAudioConfig {
+  // Required. Audio encoding of the synthesized audio content.
+  OutputAudioEncoding audio_encoding = 1 [(google.api.field_behavior) = REQUIRED];
+
+  // Optional. The synthesis sample rate (in hertz) for this audio. If not
+  // provided, then the synthesizer will use the default sample rate based on
+  // the audio encoding. If this is different from the voice's natural sample
+  // rate, then the synthesizer will honor this request by converting to the
+  // desired sample rate (which might result in worse audio quality).
+  int32 sample_rate_hertz = 2;
+
+  // Optional. Configuration of how speech should be synthesized.
+  SynthesizeSpeechConfig synthesize_speech_config = 3;
+}
+
 // Gender of the voice as described in
 // [SSML voice element](https://www.w3.org/TR/speech-synthesis11/#edef_voice).
 enum SsmlVoiceGender {
@@ -267,22 +283,6 @@ enum SsmlVoiceGender {
   SSML_VOICE_GENDER_NEUTRAL = 3;
 }
 
-// Instructs the speech synthesizer how to generate the output audio content.
-message OutputAudioConfig {
-  // Required. Audio encoding of the synthesized audio content.
-  OutputAudioEncoding audio_encoding = 1 [(google.api.field_behavior) = REQUIRED];
-
-  // Optional. The synthesis sample rate (in hertz) for this audio. If not
-  // provided, then the synthesizer will use the default sample rate based on
-  // the audio encoding. If this is different from the voice's natural sample
-  // rate, then the synthesizer will honor this request by converting to the
-  // desired sample rate (which might result in worse audio quality).
-  int32 sample_rate_hertz = 2;
-
-  // Optional. Configuration of how speech should be synthesized.
-  SynthesizeSpeechConfig synthesize_speech_config = 3;
-}
-
 // Audio encoding of the output audio format in Text-To-Speech.
 enum OutputAudioEncoding {
   // Not specified.
diff --git a/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3/entity_type.proto b/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3/entity_type.proto
index 3e7f4e36117..715dcb87573 100644
--- a/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3/entity_type.proto
+++ b/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3/entity_type.proto
@@ -1,4 +1,4 @@
-// Copyright 2020 Google LLC
+// Copyright 2021 Google LLC
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
@@ -231,7 +231,7 @@ message ListEntityTypesRequest {
   //
   // If not specified, the agent's default language is used.
   // [Many
-  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
   // are supported.
   // Note: languages must be enabled in the agent before they can be used.
   string language_code = 2;
@@ -276,7 +276,7 @@ message GetEntityTypeRequest {
   //
   // If not specified, the agent's default language is used.
   // [Many
-  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
   // are supported.
   // Note: languages must be enabled in the agent before they can be used.
   string language_code = 2;
@@ -304,7 +304,7 @@ message CreateEntityTypeRequest {
   //
   // If not specified, the agent's default language is used.
   // [Many
-  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
   // are supported.
   // Note: languages must be enabled in the agent before they can be used.
   string language_code = 3;
@@ -323,7 +323,7 @@ message UpdateEntityTypeRequest {
   //
   // If not specified, the agent's default language is used.
   // [Many
-  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
   // are supported.
   // Note: languages must be enabled in the agent before they can be used.
   string language_code = 2;
diff --git a/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3/environment.proto b/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3/environment.proto
index 962e6a856e7..e04f1b9baa3 100644
--- a/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3/environment.proto
+++ b/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3/environment.proto
@@ -1,4 +1,4 @@
-// Copyright 2020 Google LLC
+// Copyright 2021 Google LLC
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3/experiment.proto b/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3/experiment.proto
index 712fcf4041c..399ec1c27dc 100644
--- a/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3/experiment.proto
+++ b/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3/experiment.proto
@@ -1,4 +1,4 @@
-// Copyright 2020 Google LLC
+// Copyright 2021 Google LLC
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3/flow.proto b/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3/flow.proto
index 46c987160a9..7560e77a442 100644
--- a/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3/flow.proto
+++ b/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3/flow.proto
@@ -1,4 +1,4 @@
-// Copyright 2020 Google LLC
+// Copyright 2021 Google LLC
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
@@ -250,7 +250,7 @@ message CreateFlowRequest {
   //
   // If not specified, the agent's default language is used.
   // [Many
-  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
   // are supported.
   // Note: languages must be enabled in the agent before they can be used.
   string language_code = 3;
@@ -307,7 +307,7 @@ message ListFlowsRequest {
   //
   // If not specified, the agent's default language is used.
   // [Many
-  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
   // are supported.
   // Note: languages must be enabled in the agent before they can be used.
   string language_code = 4;
@@ -344,7 +344,7 @@ message GetFlowRequest {
   //
   // If not specified, the agent's default language is used.
   // [Many
-  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
   // are supported.
   // Note: languages must be enabled in the agent before they can be used.
   string language_code = 2;
@@ -366,7 +366,7 @@ message UpdateFlowRequest {
   //
   // If not specified, the agent's default language is used.
   // [Many
-  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
   // are supported.
   // Note: languages must be enabled in the agent before they can be used.
   string language_code = 3;
diff --git a/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3/fulfillment.proto b/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3/fulfillment.proto
index 91181c727ed..0f04f68362c 100644
--- a/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3/fulfillment.proto
+++ b/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3/fulfillment.proto
@@ -1,4 +1,4 @@
-// Copyright 2020 Google LLC
+// Copyright 2021 Google LLC
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3/intent.proto b/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3/intent.proto
index 519cbd09d2c..1e2924ff814 100644
--- a/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3/intent.proto
+++ b/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3/intent.proto
@@ -1,4 +1,4 @@
-// Copyright 2020 Google LLC
+// Copyright 2021 Google LLC
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
@@ -236,7 +236,7 @@ message ListIntentsRequest {
   //
   // If not specified, the agent's default language is used.
   // [Many
-  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
   // are supported.
   // Note: languages must be enabled in the agent before they can be used.
   string language_code = 2;
@@ -282,7 +282,7 @@ message GetIntentRequest {
   //
   // If not specified, the agent's default language is used.
   // [Many
-  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
   // are supported.
   // Note: languages must be enabled in the agent before they can be used.
   string language_code = 2;
@@ -308,7 +308,7 @@ message CreateIntentRequest {
   //
   // If not specified, the agent's default language is used.
   // [Many
-  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
   // are supported.
   // Note: languages must be enabled in the agent before they can be used.
   string language_code = 3;
@@ -325,7 +325,7 @@ message UpdateIntentRequest {
   //
   // If not specified, the agent's default language is used.
   // [Many
-  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
   // are supported.
   // Note: languages must be enabled in the agent before they can be used.
   string language_code = 2;
diff --git a/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3/page.proto b/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3/page.proto
index 213dc8b1307..fadede1ae56 100644
--- a/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3/page.proto
+++ b/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3/page.proto
@@ -1,4 +1,4 @@
-// Copyright 2020 Google LLC
+// Copyright 2021 Google LLC
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
@@ -150,6 +150,9 @@ message Page {
   //     [transition route groups][google.cloud.dialogflow.cx.v3.Page.transition_route_groups] with intent
   //     specified.
   // *   TransitionRoutes defined in flow with intent specified.
+  // *   TransitionRoutes defined in the
+  //     [transition route groups][google.cloud.dialogflow.cx.v3.Flow.transition_route_groups] with intent
+  //     specified.
   // *   TransitionRoutes defined in the page with only condition specified.
   // *   TransitionRoutes defined in the
   //     [transition route groups][google.cloud.dialogflow.cx.v3.Page.transition_route_groups] with only
@@ -383,7 +386,7 @@ message ListPagesRequest {
   //
   // If not specified, the agent's default language is used.
   // [Many
-  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
   // are supported.
   // Note: languages must be enabled in the agent before they can be used.
   string language_code = 2;
@@ -431,7 +434,7 @@ message GetPageRequest {
   //
   // If not specified, the agent's default language is used.
   // [Many
-  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
   // are supported.
   // Note: languages must be enabled in the agent before they can be used.
   string language_code = 2;
@@ -463,7 +466,7 @@ message CreatePageRequest {
   //
   // If not specified, the agent's default language is used.
   // [Many
-  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
   // are supported.
   // Note: languages must be enabled in the agent before they can be used.
   string language_code = 3;
@@ -485,7 +488,7 @@ message UpdatePageRequest {
   //
   // If not specified, the agent's default language is used.
   // [Many
-  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
   // are supported.
   // Note: languages must be enabled in the agent before they can be used.
   string language_code = 2;
diff --git a/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3/response_message.proto b/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3/response_message.proto
index 29094abdb5d..53b720a6746 100644
--- a/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3/response_message.proto
+++ b/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3/response_message.proto
@@ -1,4 +1,4 @@
-// Copyright 2020 Google LLC
+// Copyright 2021 Google LLC
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
@@ -113,6 +113,13 @@ message ResponseMessage {
     bool allow_playback_interruption = 3 [(google.api.field_behavior) = OUTPUT_ONLY];
   }
 
+  // Indicates that interaction with the Dialogflow agent has ended.
+  // This message is generated by Dialogflow only and not supposed to be
+  // defined by the user.
+  message EndInteraction {
+
+  }
+
   // Specifies an audio clip to be played by the client as part of the response.
   message PlayAudio {
     // Required. URI of the audio clip. Dialogflow does not impose any validation on this
@@ -125,13 +132,6 @@ message ResponseMessage {
     bool allow_playback_interruption = 2 [(google.api.field_behavior) = OUTPUT_ONLY];
   }
 
-  // Indicates that interaction with the Dialogflow agent has ended.
-  // This message is generated by Dialogflow only and not supposed to be
-  // defined by the user.
-  message EndInteraction {
-
-  }
-
   // Represents an audio message that is composed of both segments
   // synthesized from the Dialogflow agent prompts and ones hosted externally
   // at the specified URIs.
diff --git a/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3/security_settings.proto b/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3/security_settings.proto
index 4427effde06..a5154bdd245 100644
--- a/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3/security_settings.proto
+++ b/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3/security_settings.proto
@@ -1,4 +1,4 @@
-// Copyright 2020 Google LLC
+// Copyright 2021 Google LLC
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3/session.proto b/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3/session.proto
index 55de80b91f4..a013a0f623e 100644
--- a/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3/session.proto
+++ b/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3/session.proto
@@ -1,4 +1,4 @@
-// Copyright 2020 Google LLC
+// Copyright 2021 Google LLC
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
@@ -433,9 +433,9 @@ message QueryInput {
   }
 
   // Required. The language of the input. See [Language
-  // Support](https://cloud.google.com/dialogflow/docs/reference/language) for a
-  // list of the currently supported language codes. Note that queries in the
-  // same session do not necessarily need to specify the same language.
+  // Support](https://cloud.google.com/dialogflow/cx/docs/reference/language)
+  // for a list of the currently supported language codes. Note that queries in
+  // the same session do not necessarily need to specify the same language.
   string language_code = 4 [(google.api.field_behavior) = REQUIRED];
 }
 
@@ -462,7 +462,7 @@ message QueryResult {
 
   // The language that was triggered during intent detection.
   // See [Language
-  // Support](https://cloud.google.com/dialogflow/docs/reference/language)
+  // Support](https://cloud.google.com/dialogflow/cx/docs/reference/language)
   // for a list of the currently supported language codes.
   string language_code = 2;
 
diff --git a/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3/session_entity_type.proto b/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3/session_entity_type.proto
index e7b327f2487..8500bd03bc0 100644
--- a/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3/session_entity_type.proto
+++ b/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3/session_entity_type.proto
@@ -1,4 +1,4 @@
-// Copyright 2020 Google LLC
+// Copyright 2021 Google LLC
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3/test_case.proto b/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3/test_case.proto
index 3707cc3adf8..baa1aff62cd 100644
--- a/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3/test_case.proto
+++ b/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3/test_case.proto
@@ -1,4 +1,4 @@
-// Copyright 2020 Google LLC
+// Copyright 2021 Google LLC
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
@@ -25,6 +25,7 @@ import "google/cloud/dialogflow/cx/v3/intent.proto";
 import "google/cloud/dialogflow/cx/v3/page.proto";
 import "google/cloud/dialogflow/cx/v3/response_message.proto";
 import "google/cloud/dialogflow/cx/v3/session.proto";
+import "google/cloud/dialogflow/cx/v3/transition_route_group.proto";
 import "google/longrunning/operations.proto";
 import "google/protobuf/empty.proto";
 import "google/protobuf/field_mask.proto";
@@ -94,7 +95,7 @@ service TestCases {
   // Kicks off a test case run.
   rpc RunTestCase(RunTestCaseRequest) returns (google.longrunning.Operation) {
     option (google.api.http) = {
-      post: "/v3/projects/*/locations/*/agents/*/testCases:run"
+      post: "/v3/{name=projects/*/locations/*/agents/*/testCases/*}:run"
       body: "*"
     };
     option (google.longrunning.operation_info) = {
@@ -277,12 +278,12 @@ message ConversationTurn {
       (google.api.field_behavior) = INPUT_ONLY
     ];
 
-    // The [Intent][google.cloud.dialogflow.cx.v3.Intent] that triggered the response. Only some fields such as
-    // name and displayname will be set.
+    // The [Intent][google.cloud.dialogflow.cx.v3.Intent] that triggered the response. Only name and displayName
+    // will be set.
     Intent triggered_intent = 7;
 
-    // The [Page][google.cloud.dialogflow.cx.v3.Page] on which the utterance was spoken. Only some fields such as
-    // name and displayname will be set.
+    // The [Page][google.cloud.dialogflow.cx.v3.Page] on which the utterance was spoken. Only name and displayName
+    // will be set.
     Page current_page = 8;
 
     // The [text][google.cloud.dialogflow.cx.v3.ResponseMessage.Text] responses from the agent for the turn.
@@ -327,8 +328,9 @@ message TestRunDifference {
   string description = 2;
 }
 
-// Transition coverage represents the percentage of all possible transitions
-// present within any of a parent's test cases.
+// Transition coverage represents the percentage of all possible page
+// transitions (page-level transition routes and event handlers, excluding
+// transition route groups) present within any of a parent's test cases.
 message TransitionCoverage {
   // The source or target of a transition.
   message TransitionNode {
@@ -344,7 +346,7 @@ message TransitionCoverage {
     }
   }
 
-  // A transition in the agent's graph.
+  // A transition in a page.
   message Transition {
     // The start node of a transition.
     TransitionNode source = 1;
@@ -376,6 +378,41 @@ message TransitionCoverage {
   float coverage_score = 2;
 }
 
+// Transition route group coverage represents the percentage of all possible
+// transition routes present within any of a parent's test cases. The results
+// are grouped by the transition route group.
+message TransitionRouteGroupCoverage {
+  // Coverage result message for one transition route group.
+  message Coverage {
+    // A transition coverage in a transition route group.
+    message Transition {
+      // Intent route or condition route.
+      TransitionRoute transition_route = 1;
+
+      // Whether or not the transition route is covered by at least one of the
+      // agent's test cases.
+      bool covered = 2;
+    }
+
+    // Transition route group metadata. Only name and displayName will be set.
+    TransitionRouteGroup route_group = 1;
+
+    // The list of transition routes and coverage in the transition route group.
+    repeated Transition transitions = 2;
+
+    // The percent of transition routes in the transition route group that are
+    // covered.
+    float coverage_score = 3;
+  }
+
+  // Transition route group coverages.
+  repeated Coverage coverages = 1;
+
+  // The percent of transition routes in all the transition route groups that
+  // are covered.
+  float coverage_score = 2;
+}
+
 // Intent coverage represents the percentage of all possible intents in the
 // agent that are triggered in any of a parent's test cases.
 message IntentCoverage {
@@ -408,8 +445,11 @@ message CalculateCoverageRequest {
     // Intent coverage.
     INTENT = 1;
 
-    // Page transition coverage
+    // Page transition coverage.
     PAGE_TRANSITION = 2;
+
+    // Transition route group coverage.
+    TRANSITION_ROUTE_GROUP = 3;
   }
 
   // Required. The agent to calculate coverage for.
@@ -438,8 +478,11 @@ message CalculateCoverageResponse {
     // Intent coverage.
     IntentCoverage intent_coverage = 2;
 
-    // Transition coverage.
+    // Transition (excluding transition route groups) coverage.
     TransitionCoverage transition_coverage = 4;
+
+    // Transition route group coverage.
+    TransitionRouteGroupCoverage route_group_coverage = 6;
   }
 }
 
diff --git a/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3/transition_route_group.proto b/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3/transition_route_group.proto
index 8f1f9debd0b..1f5911955ab 100644
--- a/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3/transition_route_group.proto
+++ b/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3/transition_route_group.proto
@@ -1,4 +1,4 @@
-// Copyright 2020 Google LLC
+// Copyright 2021 Google LLC
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
@@ -130,7 +130,7 @@ message ListTransitionRouteGroupsRequest {
   //
   // If not specified, the agent's default language is used.
   // [Many
-  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
   // are supported.
   // Note: languages must be enabled in the agent before they can be used.
   string language_code = 4;
@@ -167,7 +167,7 @@ message GetTransitionRouteGroupRequest {
   //
   // If not specified, the agent's default language is used.
   // [Many
-  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
   // are supported.
   // Note: languages must be enabled in the agent before they can be used.
   string language_code = 2;
@@ -194,7 +194,7 @@ message CreateTransitionRouteGroupRequest {
   //
   // If not specified, the agent's default language is used.
   // [Many
-  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
   // are supported.
   // Note: languages must be enabled in the agent before they can be used.
   string language_code = 3;
@@ -214,7 +214,7 @@ message UpdateTransitionRouteGroupRequest {
   //
   // If not specified, the agent's default language is used.
   // [Many
-  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
   // are supported.
   // Note: languages must be enabled in the agent before they can be used.
   string language_code = 3;
diff --git a/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3/validation_message.proto b/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3/validation_message.proto
index 8f98efae3f5..f36c9bb9d1d 100644
--- a/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3/validation_message.proto
+++ b/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3/validation_message.proto
@@ -1,4 +1,4 @@
-// Copyright 2020 Google LLC
+// Copyright 2021 Google LLC
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3/version.proto b/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3/version.proto
index 3850fd26d40..a3a99202505 100644
--- a/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3/version.proto
+++ b/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3/version.proto
@@ -1,4 +1,4 @@
-// Copyright 2020 Google LLC
+// Copyright 2021 Google LLC
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3/webhook.proto b/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3/webhook.proto
index 664f6d06da6..eb086364224 100644
--- a/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3/webhook.proto
+++ b/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3/webhook.proto
@@ -1,4 +1,4 @@
-// Copyright 2020 Google LLC
+// Copyright 2021 Google LLC
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
@@ -273,6 +273,18 @@ message WebhookRequest {
     float confidence = 4;
   }
 
+  // Represents the result of sentiment analysis.
+  message SentimentAnalysisResult {
+    // Sentiment score between -1.0 (negative sentiment) and 1.0 (positive
+    // sentiment).
+    float score = 1;
+
+    // A non-negative number in the [0, +inf) range, which represents the
+    // absolute magnitude of sentiment, regardless of score (positive or
+    // negative).
+    float magnitude = 2;
+  }
+
   // Always present. The unique identifier of the [DetectIntentResponse][google.cloud.dialogflow.cx.v3.DetectIntentResponse] that
   // will be returned to the API caller.
   string detect_intent_response_id = 1;
@@ -297,6 +309,10 @@ message WebhookRequest {
 
   // Custom data set in [QueryParameters.payload][google.cloud.dialogflow.cx.v3.QueryParameters.payload].
   google.protobuf.Struct payload = 8;
+
+  // The sentiment analysis result of the current user request. The field is
+  // filled when sentiment analysis is configured to be enabled for the request.
+  SentimentAnalysisResult sentiment_analysis_result = 9;
 }
 
 // The response message for a webhook call.
diff --git a/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3beta1/agent.proto b/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3beta1/agent.proto
index f6fb4b42481..543dfff5020 100644
--- a/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3beta1/agent.proto
+++ b/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3beta1/agent.proto
@@ -1,4 +1,4 @@
-// Copyright 2020 Google LLC
+// Copyright 2021 Google LLC
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
@@ -161,7 +161,7 @@ message Agent {
 
   // Immutable. The default language of the agent as a language tag.
   // See [Language
-  // Support](https://cloud.google.com/dialogflow/docs/reference/language)
+  // Support](https://cloud.google.com/dialogflow/cx/docs/reference/language)
   // for a list of the currently supported language codes.
   // This field cannot be set by the [Agents.UpdateAgent][google.cloud.dialogflow.cx.v3beta1.Agents.UpdateAgent] method.
   string default_language_code = 3 [(google.api.field_behavior) = IMMUTABLE];
diff --git a/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3beta1/audio_config.proto b/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3beta1/audio_config.proto
index c6a1b020168..38f05bd5219 100644
--- a/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3beta1/audio_config.proto
+++ b/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3beta1/audio_config.proto
@@ -1,4 +1,4 @@
-// Copyright 2020 Google LLC
+// Copyright 2021 Google LLC
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
@@ -249,6 +249,22 @@ message SynthesizeSpeechConfig {
   VoiceSelectionParams voice = 4;
 }
 
+// Instructs the speech synthesizer how to generate the output audio content.
+message OutputAudioConfig {
+  // Required. Audio encoding of the synthesized audio content.
+  OutputAudioEncoding audio_encoding = 1 [(google.api.field_behavior) = REQUIRED];
+
+  // Optional. The synthesis sample rate (in hertz) for this audio. If not
+  // provided, then the synthesizer will use the default sample rate based on
+  // the audio encoding. If this is different from the voice's natural sample
+  // rate, then the synthesizer will honor this request by converting to the
+  // desired sample rate (which might result in worse audio quality).
+  int32 sample_rate_hertz = 2;
+
+  // Optional. Configuration of how speech should be synthesized.
+  SynthesizeSpeechConfig synthesize_speech_config = 3;
+}
+
 // Gender of the voice as described in
 // [SSML voice element](https://www.w3.org/TR/speech-synthesis11/#edef_voice).
 enum SsmlVoiceGender {
@@ -266,22 +282,6 @@ enum SsmlVoiceGender {
   SSML_VOICE_GENDER_NEUTRAL = 3;
 }
 
-// Instructs the speech synthesizer how to generate the output audio content.
-message OutputAudioConfig {
-  // Required. Audio encoding of the synthesized audio content.
-  OutputAudioEncoding audio_encoding = 1 [(google.api.field_behavior) = REQUIRED];
-
-  // Optional. The synthesis sample rate (in hertz) for this audio. If not
-  // provided, then the synthesizer will use the default sample rate based on
-  // the audio encoding. If this is different from the voice's natural sample
-  // rate, then the synthesizer will honor this request by converting to the
-  // desired sample rate (which might result in worse audio quality).
-  int32 sample_rate_hertz = 2;
-
-  // Optional. Configuration of how speech should be synthesized.
-  SynthesizeSpeechConfig synthesize_speech_config = 3;
-}
-
 // Audio encoding of the output audio format in Text-To-Speech.
 enum OutputAudioEncoding {
   // Not specified.
diff --git a/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3beta1/entity_type.proto b/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3beta1/entity_type.proto
index e51d92f885e..8086a57588d 100644
--- a/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3beta1/entity_type.proto
+++ b/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3beta1/entity_type.proto
@@ -1,4 +1,4 @@
-// Copyright 2020 Google LLC
+// Copyright 2021 Google LLC
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
@@ -231,7 +231,7 @@ message ListEntityTypesRequest {
   //
   // If not specified, the agent's default language is used.
   // [Many
-  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
   // are supported.
   // Note: languages must be enabled in the agent before they can be used.
   string language_code = 2;
@@ -276,7 +276,7 @@ message GetEntityTypeRequest {
   //
   // If not specified, the agent's default language is used.
   // [Many
-  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
   // are supported.
   // Note: languages must be enabled in the agent before they can be used.
   string language_code = 2;
@@ -304,7 +304,7 @@ message CreateEntityTypeRequest {
   //
   // If not specified, the agent's default language is used.
   // [Many
-  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
   // are supported.
   // Note: languages must be enabled in the agent before they can be used.
   string language_code = 3;
@@ -323,7 +323,7 @@ message UpdateEntityTypeRequest {
   //
   // If not specified, the agent's default language is used.
   // [Many
-  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
   // are supported.
   // Note: languages must be enabled in the agent before they can be used.
   string language_code = 2;
diff --git a/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3beta1/environment.proto b/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3beta1/environment.proto
index a5c444c3dce..feddb123a8a 100644
--- a/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3beta1/environment.proto
+++ b/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3beta1/environment.proto
@@ -1,4 +1,4 @@
-// Copyright 2020 Google LLC
+// Copyright 2021 Google LLC
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3beta1/experiment.proto b/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3beta1/experiment.proto
index f194943094b..7ae323b417f 100644
--- a/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3beta1/experiment.proto
+++ b/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3beta1/experiment.proto
@@ -1,4 +1,4 @@
-// Copyright 2020 Google LLC
+// Copyright 2021 Google LLC
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3beta1/flow.proto b/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3beta1/flow.proto
index e5aeef4ca9b..f8b92b5eb86 100644
--- a/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3beta1/flow.proto
+++ b/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3beta1/flow.proto
@@ -1,4 +1,4 @@
-// Copyright 2020 Google LLC
+// Copyright 2021 Google LLC
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
@@ -250,7 +250,7 @@ message CreateFlowRequest {
   //
   // If not specified, the agent's default language is used.
   // [Many
-  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
   // are supported.
   // Note: languages must be enabled in the agent before they can be used.
   string language_code = 3;
@@ -307,7 +307,7 @@ message ListFlowsRequest {
   //
   // If not specified, the agent's default language is used.
   // [Many
-  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
   // are supported.
   // Note: languages must be enabled in the agent before they can be used.
   string language_code = 4;
@@ -344,7 +344,7 @@ message GetFlowRequest {
   //
   // If not specified, the agent's default language is used.
   // [Many
-  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
   // are supported.
   // Note: languages must be enabled in the agent before they can be used.
   string language_code = 2;
@@ -366,7 +366,7 @@ message UpdateFlowRequest {
   //
   // If not specified, the agent's default language is used.
   // [Many
-  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
   // are supported.
   // Note: languages must be enabled in the agent before they can be used.
   string language_code = 3;
diff --git a/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3beta1/fulfillment.proto b/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3beta1/fulfillment.proto
index 7a8e5af3cba..74d9e822488 100644
--- a/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3beta1/fulfillment.proto
+++ b/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3beta1/fulfillment.proto
@@ -1,4 +1,4 @@
-// Copyright 2020 Google LLC
+// Copyright 2021 Google LLC
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3beta1/intent.proto b/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3beta1/intent.proto
index c66df126641..c0479c472a2 100644
--- a/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3beta1/intent.proto
+++ b/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3beta1/intent.proto
@@ -1,4 +1,4 @@
-// Copyright 2020 Google LLC
+// Copyright 2021 Google LLC
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
@@ -236,7 +236,7 @@ message ListIntentsRequest {
   //
   // If not specified, the agent's default language is used.
   // [Many
-  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
   // are supported.
   // Note: languages must be enabled in the agent before they can be used.
   string language_code = 2;
@@ -282,7 +282,7 @@ message GetIntentRequest {
   //
   // If not specified, the agent's default language is used.
   // [Many
-  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
   // are supported.
   // Note: languages must be enabled in the agent before they can be used.
   string language_code = 2;
@@ -308,7 +308,7 @@ message CreateIntentRequest {
   //
   // If not specified, the agent's default language is used.
   // [Many
-  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
   // are supported.
   // Note: languages must be enabled in the agent before they can be used.
   string language_code = 3;
@@ -325,7 +325,7 @@ message UpdateIntentRequest {
   //
   // If not specified, the agent's default language is used.
   // [Many
-  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
   // are supported.
   // Note: languages must be enabled in the agent before they can be used.
   string language_code = 2;
diff --git a/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3beta1/page.proto b/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3beta1/page.proto
index 94daf38a60e..4a8acf7a55f 100644
--- a/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3beta1/page.proto
+++ b/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3beta1/page.proto
@@ -1,4 +1,4 @@
-// Copyright 2020 Google LLC
+// Copyright 2021 Google LLC
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
@@ -386,7 +386,7 @@ message ListPagesRequest {
   //
   // If not specified, the agent's default language is used.
   // [Many
-  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
   // are supported.
   // Note: languages must be enabled in the agent before they can be used.
   string language_code = 2;
@@ -434,7 +434,7 @@ message GetPageRequest {
   //
   // If not specified, the agent's default language is used.
   // [Many
-  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
   // are supported.
   // Note: languages must be enabled in the agent before they can be used.
   string language_code = 2;
@@ -466,7 +466,7 @@ message CreatePageRequest {
   //
   // If not specified, the agent's default language is used.
   // [Many
-  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
   // are supported.
   // Note: languages must be enabled in the agent before they can be used.
   string language_code = 3;
@@ -488,7 +488,7 @@ message UpdatePageRequest {
   //
   // If not specified, the agent's default language is used.
   // [Many
-  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
   // are supported.
   // Note: languages must be enabled in the agent before they can be used.
   string language_code = 2;
diff --git a/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3beta1/response_message.proto b/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3beta1/response_message.proto
index 1627520eb4d..e8934f20d7a 100644
--- a/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3beta1/response_message.proto
+++ b/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3beta1/response_message.proto
@@ -1,4 +1,4 @@
-// Copyright 2020 Google LLC
+// Copyright 2021 Google LLC
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
@@ -184,8 +184,8 @@ message ResponseMessage {
     // Output only. A signal that indicates the interaction with the Dialogflow agent has
     // ended.
     // This message is generated by Dialogflow only when the conversation
-    // reaches `END_SESSION` or `END_PAGE` page. It is not supposed to be
-    // defined by the user.
+    // reaches `END_SESSION` page. It is not supposed to be defined by the user.
+    //
     // It's guaranteed that there is at most one such message in each response.
     EndInteraction end_interaction = 11 [(google.api.field_behavior) = OUTPUT_ONLY];
 
diff --git a/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3beta1/security_settings.proto b/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3beta1/security_settings.proto
index e86c99424c2..376a73188df 100644
--- a/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3beta1/security_settings.proto
+++ b/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3beta1/security_settings.proto
@@ -1,4 +1,4 @@
-// Copyright 2020 Google LLC
+// Copyright 2021 Google LLC
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3beta1/session.proto b/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3beta1/session.proto
index 5e8f07aa4cd..4b650a044a7 100644
--- a/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3beta1/session.proto
+++ b/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3beta1/session.proto
@@ -1,4 +1,4 @@
-// Copyright 2020 Google LLC
+// Copyright 2021 Google LLC
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
@@ -388,6 +388,9 @@ message QueryParameters {
   //     -   Else: parameter value
   google.protobuf.Struct parameters = 5;
 
+  // Whether to disable webhook calls for this request.
+  bool disable_webhook = 7;
+
   // Configures whether sentiment analysis should be performed. If not
   // provided, sentiment analysis is not performed.
   bool analyze_query_text_sentiment = 8;
@@ -433,9 +436,9 @@ message QueryInput {
   }
 
   // Required. The language of the input. See [Language
-  // Support](https://cloud.google.com/dialogflow/docs/reference/language) for a
-  // list of the currently supported language codes. Note that queries in the
-  // same session do not necessarily need to specify the same language.
+  // Support](https://cloud.google.com/dialogflow/cx/docs/reference/language)
+  // for a list of the currently supported language codes. Note that queries in
+  // the same session do not necessarily need to specify the same language.
   string language_code = 4 [(google.api.field_behavior) = REQUIRED];
 }
 
@@ -462,7 +465,7 @@ message QueryResult {
 
   // The language that was triggered during intent detection.
   // See [Language
-  // Support](https://cloud.google.com/dialogflow/docs/reference/language)
+  // Support](https://cloud.google.com/dialogflow/cx/docs/reference/language)
   // for a list of the currently supported language codes.
   string language_code = 2;
 
diff --git a/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3beta1/session_entity_type.proto b/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3beta1/session_entity_type.proto
index 5b8f5df929f..7bdd3ec3155 100644
--- a/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3beta1/session_entity_type.proto
+++ b/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3beta1/session_entity_type.proto
@@ -1,4 +1,4 @@
-// Copyright 2020 Google LLC
+// Copyright 2021 Google LLC
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3beta1/test_case.proto b/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3beta1/test_case.proto
index 4a51377577a..05c07a27d81 100644
--- a/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3beta1/test_case.proto
+++ b/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3beta1/test_case.proto
@@ -1,4 +1,4 @@
-// Copyright 2020 Google LLC
+// Copyright 2021 Google LLC
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
@@ -25,6 +25,7 @@ import "google/cloud/dialogflow/cx/v3beta1/intent.proto";
 import "google/cloud/dialogflow/cx/v3beta1/page.proto";
 import "google/cloud/dialogflow/cx/v3beta1/response_message.proto";
 import "google/cloud/dialogflow/cx/v3beta1/session.proto";
+import "google/cloud/dialogflow/cx/v3beta1/transition_route_group.proto";
 import "google/longrunning/operations.proto";
 import "google/protobuf/empty.proto";
 import "google/protobuf/field_mask.proto";
@@ -94,7 +95,7 @@ service TestCases {
   // Kicks off a test case run.
   rpc RunTestCase(RunTestCaseRequest) returns (google.longrunning.Operation) {
     option (google.api.http) = {
-      post: "/v3beta1/projects/*/locations/*/agents/*/testCases:run"
+      post: "/v3beta1/{name=projects/*/locations/*/agents/*/testCases/*}:run"
       body: "*"
     };
     option (google.longrunning.operation_info) = {
@@ -277,12 +278,12 @@ message ConversationTurn {
       (google.api.field_behavior) = INPUT_ONLY
     ];
 
-    // The [Intent][google.cloud.dialogflow.cx.v3beta1.Intent] that triggered the response. Only some fields such as
-    // name and displayname will be set.
+    // The [Intent][google.cloud.dialogflow.cx.v3beta1.Intent] that triggered the response. Only name and displayName
+    // will be set.
     Intent triggered_intent = 7;
 
-    // The [Page][google.cloud.dialogflow.cx.v3beta1.Page] on which the utterance was spoken. Only some fields such as
-    // name and displayname will be set.
+    // The [Page][google.cloud.dialogflow.cx.v3beta1.Page] on which the utterance was spoken. Only name and displayName
+    // will be set.
     Page current_page = 8;
 
     // The [text][google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text] responses from the agent for the turn.
@@ -327,8 +328,9 @@ message TestRunDifference {
   string description = 2;
 }
 
-// Transition coverage represents the percentage of all possible transitions
-// present within any of a parent's test cases.
+// Transition coverage represents the percentage of all possible page
+// transitions (page-level transition routes and event handlers, excluding
+// transition route groups) present within any of a parent's test cases.
 message TransitionCoverage {
   // The source or target of a transition.
   message TransitionNode {
@@ -344,7 +346,7 @@ message TransitionCoverage {
     }
   }
 
-  // A transition in the agent's graph.
+  // A transition in a page.
   message Transition {
     // The start node of a transition.
     TransitionNode source = 1;
@@ -376,6 +378,41 @@ message TransitionCoverage {
   float coverage_score = 2;
 }
 
+// Transition route group coverage represents the percentage of all possible
+// transition routes present within any of a parent's test cases. The results
+// are grouped by the transition route group.
+message TransitionRouteGroupCoverage {
+  // Coverage result message for one transition route group.
+  message Coverage {
+    // A transition coverage in a transition route group.
+    message Transition {
+      // Intent route or condition route.
+      TransitionRoute transition_route = 1;
+
+      // Whether or not the transition route is covered by at least one of the
+      // agent's test cases.
+      bool covered = 2;
+    }
+
+    // Transition route group metadata. Only name and displayName will be set.
+    TransitionRouteGroup route_group = 1;
+
+    // The list of transition routes and coverage in the transition route group.
+    repeated Transition transitions = 2;
+
+    // The percent of transition routes in the transition route group that are
+    // covered.
+    float coverage_score = 3;
+  }
+
+  // Transition route group coverages.
+  repeated Coverage coverages = 1;
+
+  // The percent of transition routes in all the transition route groups that
+  // are covered.
+  float coverage_score = 2;
+}
+
 // Intent coverage represents the percentage of all possible intents in the
 // agent that are triggered in any of a parent's test cases.
 message IntentCoverage {
@@ -408,8 +445,11 @@ message CalculateCoverageRequest {
     // Intent coverage.
     INTENT = 1;
 
-    // Page transition coverage
+    // Page transition coverage.
     PAGE_TRANSITION = 2;
+
+    // Transition route group coverage.
+    TRANSITION_ROUTE_GROUP = 3;
   }
 
   // Required. The agent to calculate coverage for.
@@ -438,8 +478,11 @@ message CalculateCoverageResponse {
     // Intent coverage.
     IntentCoverage intent_coverage = 2;
 
-    // Transition coverage.
+    // Transition (excluding transition route groups) coverage.
     TransitionCoverage transition_coverage = 4;
+
+    // Transition route group coverage.
+    TransitionRouteGroupCoverage route_group_coverage = 6;
   }
 }
 
diff --git a/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3beta1/transition_route_group.proto b/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3beta1/transition_route_group.proto
index 13d62fdbdcb..341985b4ad8 100644
--- a/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3beta1/transition_route_group.proto
+++ b/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3beta1/transition_route_group.proto
@@ -1,4 +1,4 @@
-// Copyright 2020 Google LLC
+// Copyright 2021 Google LLC
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
@@ -130,7 +130,7 @@ message ListTransitionRouteGroupsRequest {
   //
   // If not specified, the agent's default language is used.
   // [Many
-  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
   // are supported.
   // Note: languages must be enabled in the agent before they can be used.
   string language_code = 4;
@@ -167,7 +167,7 @@ message GetTransitionRouteGroupRequest {
   //
   // If not specified, the agent's default language is used.
   // [Many
-  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
   // are supported.
   // Note: languages must be enabled in the agent before they can be used.
   string language_code = 2;
@@ -194,7 +194,7 @@ message CreateTransitionRouteGroupRequest {
   //
   // If not specified, the agent's default language is used.
   // [Many
-  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
   // are supported.
   // Note: languages must be enabled in the agent before they can be used.
   string language_code = 3;
@@ -214,7 +214,7 @@ message UpdateTransitionRouteGroupRequest {
   //
   // If not specified, the agent's default language is used.
   // [Many
-  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
   // are supported.
   // Note: languages must be enabled in the agent before they can be used.
   string language_code = 3;
diff --git a/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3beta1/validation_message.proto b/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3beta1/validation_message.proto
index 6c50177c34e..b80e4fa27d8 100644
--- a/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3beta1/validation_message.proto
+++ b/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3beta1/validation_message.proto
@@ -1,4 +1,4 @@
-// Copyright 2020 Google LLC
+// Copyright 2021 Google LLC
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3beta1/version.proto b/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3beta1/version.proto
index 819a6d3cd59..9648a42773c 100644
--- a/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3beta1/version.proto
+++ b/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3beta1/version.proto
@@ -1,4 +1,4 @@
-// Copyright 2020 Google LLC
+// Copyright 2021 Google LLC
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3beta1/webhook.proto b/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3beta1/webhook.proto
index 3bc6735fdf5..8f94f30275e 100644
--- a/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3beta1/webhook.proto
+++ b/packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3beta1/webhook.proto
@@ -1,4 +1,4 @@
-// Copyright 2020 Google LLC
+// Copyright 2021 Google LLC
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/packages/google-cloud-dialogflow-cx/protos/protos.d.ts b/packages/google-cloud-dialogflow-cx/protos/protos.d.ts
index 95921f5d6b2..c7ac31dec95 100644
--- a/packages/google-cloud-dialogflow-cx/protos/protos.d.ts
+++ b/packages/google-cloud-dialogflow-cx/protos/protos.d.ts
@@ -5490,181 +5490,181 @@ export namespace google {
                             public toJSON(): { [k: string]: any };
                         }
 
-                        /** Properties of a PlayAudio. */
-                        interface IPlayAudio {
-
-                            /** PlayAudio audioUri */
-                            audioUri?: (string|null);
-
-                            /** PlayAudio allowPlaybackInterruption */
-                            allowPlaybackInterruption?: (boolean|null);
+                        /** Properties of an EndInteraction. */
+                        interface IEndInteraction {
                         }
 
-                        /** Represents a PlayAudio. */
-                        class PlayAudio implements IPlayAudio {
+                        /** Represents an EndInteraction. */
+                        class EndInteraction implements IEndInteraction {
 
                             /**
-                             * Constructs a new PlayAudio.
+                             * Constructs a new EndInteraction.
                              * @param [properties] Properties to set
                              */
-                            constructor(properties?: google.cloud.dialogflow.cx.v3.ResponseMessage.IPlayAudio);
-
-                            /** PlayAudio audioUri. */
-                            public audioUri: string;
-
-                            /** PlayAudio allowPlaybackInterruption. */
-                            public allowPlaybackInterruption: boolean;
+                            constructor(properties?: google.cloud.dialogflow.cx.v3.ResponseMessage.IEndInteraction);
 
                             /**
-                             * Creates a new PlayAudio instance using the specified properties.
+                             * Creates a new EndInteraction instance using the specified properties.
                              * @param [properties] Properties to set
-                             * @returns PlayAudio instance
+                             * @returns EndInteraction instance
                              */
-                            public static create(properties?: google.cloud.dialogflow.cx.v3.ResponseMessage.IPlayAudio): google.cloud.dialogflow.cx.v3.ResponseMessage.PlayAudio;
+                            public static create(properties?: google.cloud.dialogflow.cx.v3.ResponseMessage.IEndInteraction): google.cloud.dialogflow.cx.v3.ResponseMessage.EndInteraction;
 
                             /**
-                             * Encodes the specified PlayAudio message. Does not implicitly {@link google.cloud.dialogflow.cx.v3.ResponseMessage.PlayAudio.verify|verify} messages.
-                             * @param message PlayAudio message or plain object to encode
+                             * Encodes the specified EndInteraction message. Does not implicitly {@link google.cloud.dialogflow.cx.v3.ResponseMessage.EndInteraction.verify|verify} messages.
+                             * @param message EndInteraction message or plain object to encode
                              * @param [writer] Writer to encode to
                              * @returns Writer
                              */
-                            public static encode(message: google.cloud.dialogflow.cx.v3.ResponseMessage.IPlayAudio, writer?: $protobuf.Writer): $protobuf.Writer;
+                            public static encode(message: google.cloud.dialogflow.cx.v3.ResponseMessage.IEndInteraction, writer?: $protobuf.Writer): $protobuf.Writer;
 
                             /**
-                             * Encodes the specified PlayAudio message, length delimited. Does not implicitly {@link google.cloud.dialogflow.cx.v3.ResponseMessage.PlayAudio.verify|verify} messages.
-                             * @param message PlayAudio message or plain object to encode
+                             * Encodes the specified EndInteraction message, length delimited. Does not implicitly {@link google.cloud.dialogflow.cx.v3.ResponseMessage.EndInteraction.verify|verify} messages.
+                             * @param message EndInteraction message or plain object to encode
                              * @param [writer] Writer to encode to
                              * @returns Writer
                              */
-                            public static encodeDelimited(message: google.cloud.dialogflow.cx.v3.ResponseMessage.IPlayAudio, writer?: $protobuf.Writer): $protobuf.Writer;
+                            public static encodeDelimited(message: google.cloud.dialogflow.cx.v3.ResponseMessage.IEndInteraction, writer?: $protobuf.Writer): $protobuf.Writer;
 
                             /**
-                             * Decodes a PlayAudio message from the specified reader or buffer.
+                             * Decodes an EndInteraction message from the specified reader or buffer.
                              * @param reader Reader or buffer to decode from
                              * @param [length] Message length if known beforehand
-                             * @returns PlayAudio
+                             * @returns EndInteraction
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            public static decode(reader: ($protobuf.Reader|Uint8Array), length?: number): google.cloud.dialogflow.cx.v3.ResponseMessage.PlayAudio;
+                            public static decode(reader: ($protobuf.Reader|Uint8Array), length?: number): google.cloud.dialogflow.cx.v3.ResponseMessage.EndInteraction;
 
                             /**
-                             * Decodes a PlayAudio message from the specified reader or buffer, length delimited.
+                             * Decodes an EndInteraction message from the specified reader or buffer, length delimited.
                              * @param reader Reader or buffer to decode from
-                             * @returns PlayAudio
+                             * @returns EndInteraction
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            public static decodeDelimited(reader: ($protobuf.Reader|Uint8Array)): google.cloud.dialogflow.cx.v3.ResponseMessage.PlayAudio;
+                            public static decodeDelimited(reader: ($protobuf.Reader|Uint8Array)): google.cloud.dialogflow.cx.v3.ResponseMessage.EndInteraction;
 
                             /**
-                             * Verifies a PlayAudio message.
+                             * Verifies an EndInteraction message.
                              * @param message Plain object to verify
                              * @returns `null` if valid, otherwise the reason why it is not
                              */
                             public static verify(message: { [k: string]: any }): (string|null);
 
                             /**
-                             * Creates a PlayAudio message from a plain object. Also converts values to their respective internal types.
+                             * Creates an EndInteraction message from a plain object. Also converts values to their respective internal types.
                              * @param object Plain object
-                             * @returns PlayAudio
+                             * @returns EndInteraction
                              */
-                            public static fromObject(object: { [k: string]: any }): google.cloud.dialogflow.cx.v3.ResponseMessage.PlayAudio;
+                            public static fromObject(object: { [k: string]: any }): google.cloud.dialogflow.cx.v3.ResponseMessage.EndInteraction;
 
                             /**
-                             * Creates a plain object from a PlayAudio message. Also converts values to other types if specified.
-                             * @param message PlayAudio
+                             * Creates a plain object from an EndInteraction message. Also converts values to other types if specified.
+                             * @param message EndInteraction
                              * @param [options] Conversion options
                              * @returns Plain object
                              */
-                            public static toObject(message: google.cloud.dialogflow.cx.v3.ResponseMessage.PlayAudio, options?: $protobuf.IConversionOptions): { [k: string]: any };
+                            public static toObject(message: google.cloud.dialogflow.cx.v3.ResponseMessage.EndInteraction, options?: $protobuf.IConversionOptions): { [k: string]: any };
 
                             /**
-                             * Converts this PlayAudio to JSON.
+                             * Converts this EndInteraction to JSON.
                              * @returns JSON object
                              */
                             public toJSON(): { [k: string]: any };
                         }
 
-                        /** Properties of an EndInteraction. */
-                        interface IEndInteraction {
+                        /** Properties of a PlayAudio. */
+                        interface IPlayAudio {
+
+                            /** PlayAudio audioUri */
+                            audioUri?: (string|null);
+
+                            /** PlayAudio allowPlaybackInterruption */
+                            allowPlaybackInterruption?: (boolean|null);
                         }
 
-                        /** Represents an EndInteraction. */
-                        class EndInteraction implements IEndInteraction {
+                        /** Represents a PlayAudio. */
+                        class PlayAudio implements IPlayAudio {
 
                             /**
-                             * Constructs a new EndInteraction.
+                             * Constructs a new PlayAudio.
                              * @param [properties] Properties to set
                              */
-                            constructor(properties?: google.cloud.dialogflow.cx.v3.ResponseMessage.IEndInteraction);
+                            constructor(properties?: google.cloud.dialogflow.cx.v3.ResponseMessage.IPlayAudio);
+
+                            /** PlayAudio audioUri. */
+                            public audioUri: string;
+
+                            /** PlayAudio allowPlaybackInterruption. */
+                            public allowPlaybackInterruption: boolean;
 
                             /**
-                             * Creates a new EndInteraction instance using the specified properties.
+                             * Creates a new PlayAudio instance using the specified properties.
                              * @param [properties] Properties to set
-                             * @returns EndInteraction instance
+                             * @returns PlayAudio instance
                              */
-                            public static create(properties?: google.cloud.dialogflow.cx.v3.ResponseMessage.IEndInteraction): google.cloud.dialogflow.cx.v3.ResponseMessage.EndInteraction;
+                            public static create(properties?: google.cloud.dialogflow.cx.v3.ResponseMessage.IPlayAudio): google.cloud.dialogflow.cx.v3.ResponseMessage.PlayAudio;
 
                             /**
-                             * Encodes the specified EndInteraction message. Does not implicitly {@link google.cloud.dialogflow.cx.v3.ResponseMessage.EndInteraction.verify|verify} messages.
-                             * @param message EndInteraction message or plain object to encode
+                             * Encodes the specified PlayAudio message. Does not implicitly {@link google.cloud.dialogflow.cx.v3.ResponseMessage.PlayAudio.verify|verify} messages.
+                             * @param message PlayAudio message or plain object to encode
                              * @param [writer] Writer to encode to
                              * @returns Writer
                              */
-                            public static encode(message: google.cloud.dialogflow.cx.v3.ResponseMessage.IEndInteraction, writer?: $protobuf.Writer): $protobuf.Writer;
+                            public static encode(message: google.cloud.dialogflow.cx.v3.ResponseMessage.IPlayAudio, writer?: $protobuf.Writer): $protobuf.Writer;
 
                             /**
-                             * Encodes the specified EndInteraction message, length delimited. Does not implicitly {@link google.cloud.dialogflow.cx.v3.ResponseMessage.EndInteraction.verify|verify} messages.
-                             * @param message EndInteraction message or plain object to encode
+                             * Encodes the specified PlayAudio message, length delimited. Does not implicitly {@link google.cloud.dialogflow.cx.v3.ResponseMessage.PlayAudio.verify|verify} messages.
+                             * @param message PlayAudio message or plain object to encode
                              * @param [writer] Writer to encode to
                              * @returns Writer
                              */
-                            public static encodeDelimited(message: google.cloud.dialogflow.cx.v3.ResponseMessage.IEndInteraction, writer?: $protobuf.Writer): $protobuf.Writer;
+                            public static encodeDelimited(message: google.cloud.dialogflow.cx.v3.ResponseMessage.IPlayAudio, writer?: $protobuf.Writer): $protobuf.Writer;
 
                             /**
-                             * Decodes an EndInteraction message from the specified reader or buffer.
+                             * Decodes a PlayAudio message from the specified reader or buffer.
                              * @param reader Reader or buffer to decode from
                              * @param [length] Message length if known beforehand
-                             * @returns EndInteraction
+                             * @returns PlayAudio
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            public static decode(reader: ($protobuf.Reader|Uint8Array), length?: number): google.cloud.dialogflow.cx.v3.ResponseMessage.EndInteraction;
+                            public static decode(reader: ($protobuf.Reader|Uint8Array), length?: number): google.cloud.dialogflow.cx.v3.ResponseMessage.PlayAudio;
 
                             /**
-                             * Decodes an EndInteraction message from the specified reader or buffer, length delimited.
+                             * Decodes a PlayAudio message from the specified reader or buffer, length delimited.
                              * @param reader Reader or buffer to decode from
-                             * @returns EndInteraction
+                             * @returns PlayAudio
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            public static decodeDelimited(reader: ($protobuf.Reader|Uint8Array)): google.cloud.dialogflow.cx.v3.ResponseMessage.EndInteraction;
+                            public static decodeDelimited(reader: ($protobuf.Reader|Uint8Array)): google.cloud.dialogflow.cx.v3.ResponseMessage.PlayAudio;
 
                             /**
-                             * Verifies an EndInteraction message.
+                             * Verifies a PlayAudio message.
                              * @param message Plain object to verify
                              * @returns `null` if valid, otherwise the reason why it is not
                              */
                             public static verify(message: { [k: string]: any }): (string|null);
 
                             /**
-                             * Creates an EndInteraction message from a plain object. Also converts values to their respective internal types.
+                             * Creates a PlayAudio message from a plain object. Also converts values to their respective internal types.
                              * @param object Plain object
-                             * @returns EndInteraction
+                             * @returns PlayAudio
                              */
-                            public static fromObject(object: { [k: string]: any }): google.cloud.dialogflow.cx.v3.ResponseMessage.EndInteraction;
+                            public static fromObject(object: { [k: string]: any }): google.cloud.dialogflow.cx.v3.ResponseMessage.PlayAudio;
 
                             /**
-                             * Creates a plain object from an EndInteraction message. Also converts values to other types if specified.
-                             * @param message EndInteraction
+                             * Creates a plain object from a PlayAudio message. Also converts values to other types if specified.
+                             * @param message PlayAudio
                              * @param [options] Conversion options
                              * @returns Plain object
                              */
-                            public static toObject(message: google.cloud.dialogflow.cx.v3.ResponseMessage.EndInteraction, options?: $protobuf.IConversionOptions): { [k: string]: any };
+                            public static toObject(message: google.cloud.dialogflow.cx.v3.ResponseMessage.PlayAudio, options?: $protobuf.IConversionOptions): { [k: string]: any };
 
                             /**
-                             * Converts this EndInteraction to JSON.
+                             * Converts this PlayAudio to JSON.
                              * @returns JSON object
                              */
                             public toJSON(): { [k: string]: any };
@@ -6572,14 +6572,6 @@ export namespace google {
                         public toJSON(): { [k: string]: any };
                     }
 
-                    /** SsmlVoiceGender enum. */
-                    enum SsmlVoiceGender {
-                        SSML_VOICE_GENDER_UNSPECIFIED = 0,
-                        SSML_VOICE_GENDER_MALE = 1,
-                        SSML_VOICE_GENDER_FEMALE = 2,
-                        SSML_VOICE_GENDER_NEUTRAL = 3
-                    }
-
                     /** Properties of an OutputAudioConfig. */
                     interface IOutputAudioConfig {
 
@@ -6682,6 +6674,14 @@ export namespace google {
                         public toJSON(): { [k: string]: any };
                     }
 
+                    /** SsmlVoiceGender enum. */
+                    enum SsmlVoiceGender {
+                        SSML_VOICE_GENDER_UNSPECIFIED = 0,
+                        SSML_VOICE_GENDER_MALE = 1,
+                        SSML_VOICE_GENDER_FEMALE = 2,
+                        SSML_VOICE_GENDER_NEUTRAL = 3
+                    }
+
                     /** OutputAudioEncoding enum. */
                     enum OutputAudioEncoding {
                         OUTPUT_AUDIO_ENCODING_UNSPECIFIED = 0,
@@ -17219,6 +17219,306 @@ export namespace google {
                         }
                     }
 
+                    /** Properties of a TransitionRouteGroupCoverage. */
+                    interface ITransitionRouteGroupCoverage {
+
+                        /** TransitionRouteGroupCoverage coverages */
+                        coverages?: (google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.ICoverage[]|null);
+
+                        /** TransitionRouteGroupCoverage coverageScore */
+                        coverageScore?: (number|null);
+                    }
+
+                    /** Represents a TransitionRouteGroupCoverage. */
+                    class TransitionRouteGroupCoverage implements ITransitionRouteGroupCoverage {
+
+                        /**
+                         * Constructs a new TransitionRouteGroupCoverage.
+                         * @param [properties] Properties to set
+                         */
+                        constructor(properties?: google.cloud.dialogflow.cx.v3.ITransitionRouteGroupCoverage);
+
+                        /** TransitionRouteGroupCoverage coverages. */
+                        public coverages: google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.ICoverage[];
+
+                        /** TransitionRouteGroupCoverage coverageScore. */
+                        public coverageScore: number;
+
+                        /**
+                         * Creates a new TransitionRouteGroupCoverage instance using the specified properties.
+                         * @param [properties] Properties to set
+                         * @returns TransitionRouteGroupCoverage instance
+                         */
+                        public static create(properties?: google.cloud.dialogflow.cx.v3.ITransitionRouteGroupCoverage): google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage;
+
+                        /**
+                         * Encodes the specified TransitionRouteGroupCoverage message. Does not implicitly {@link google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.verify|verify} messages.
+                         * @param message TransitionRouteGroupCoverage message or plain object to encode
+                         * @param [writer] Writer to encode to
+                         * @returns Writer
+                         */
+                        public static encode(message: google.cloud.dialogflow.cx.v3.ITransitionRouteGroupCoverage, writer?: $protobuf.Writer): $protobuf.Writer;
+
+                        /**
+                         * Encodes the specified TransitionRouteGroupCoverage message, length delimited. Does not implicitly {@link google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.verify|verify} messages.
+                         * @param message TransitionRouteGroupCoverage message or plain object to encode
+                         * @param [writer] Writer to encode to
+                         * @returns Writer
+                         */
+                        public static encodeDelimited(message: google.cloud.dialogflow.cx.v3.ITransitionRouteGroupCoverage, writer?: $protobuf.Writer): $protobuf.Writer;
+
+                        /**
+                         * Decodes a TransitionRouteGroupCoverage message from the specified reader or buffer.
+                         * @param reader Reader or buffer to decode from
+                         * @param [length] Message length if known beforehand
+                         * @returns TransitionRouteGroupCoverage
+                         * @throws {Error} If the payload is not a reader or valid buffer
+                         * @throws {$protobuf.util.ProtocolError} If required fields are missing
+                         */
+                        public static decode(reader: ($protobuf.Reader|Uint8Array), length?: number): google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage;
+
+                        /**
+                         * Decodes a TransitionRouteGroupCoverage message from the specified reader or buffer, length delimited.
+                         * @param reader Reader or buffer to decode from
+                         * @returns TransitionRouteGroupCoverage
+                         * @throws {Error} If the payload is not a reader or valid buffer
+                         * @throws {$protobuf.util.ProtocolError} If required fields are missing
+                         */
+                        public static decodeDelimited(reader: ($protobuf.Reader|Uint8Array)): google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage;
+
+                        /**
+                         * Verifies a TransitionRouteGroupCoverage message.
+                         * @param message Plain object to verify
+                         * @returns `null` if valid, otherwise the reason why it is not
+                         */
+                        public static verify(message: { [k: string]: any }): (string|null);
+
+                        /**
+                         * Creates a TransitionRouteGroupCoverage message from a plain object. Also converts values to their respective internal types.
+                         * @param object Plain object
+                         * @returns TransitionRouteGroupCoverage
+                         */
+                        public static fromObject(object: { [k: string]: any }): google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage;
+
+                        /**
+                         * Creates a plain object from a TransitionRouteGroupCoverage message. Also converts values to other types if specified.
+                         * @param message TransitionRouteGroupCoverage
+                         * @param [options] Conversion options
+                         * @returns Plain object
+                         */
+                        public static toObject(message: google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage, options?: $protobuf.IConversionOptions): { [k: string]: any };
+
+                        /**
+                         * Converts this TransitionRouteGroupCoverage to JSON.
+                         * @returns JSON object
+                         */
+                        public toJSON(): { [k: string]: any };
+                    }
+
+                    namespace TransitionRouteGroupCoverage {
+
+                        /** Properties of a Coverage. */
+                        interface ICoverage {
+
+                            /** Coverage routeGroup */
+                            routeGroup?: (google.cloud.dialogflow.cx.v3.ITransitionRouteGroup|null);
+
+                            /** Coverage transitions */
+                            transitions?: (google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.Coverage.ITransition[]|null);
+
+                            /** Coverage coverageScore */
+                            coverageScore?: (number|null);
+                        }
+
+                        /** Represents a Coverage. */
+                        class Coverage implements ICoverage {
+
+                            /**
+                             * Constructs a new Coverage.
+                             * @param [properties] Properties to set
+                             */
+                            constructor(properties?: google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.ICoverage);
+
+                            /** Coverage routeGroup. */
+                            public routeGroup?: (google.cloud.dialogflow.cx.v3.ITransitionRouteGroup|null);
+
+                            /** Coverage transitions. */
+                            public transitions: google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.Coverage.ITransition[];
+
+                            /** Coverage coverageScore. */
+                            public coverageScore: number;
+
+                            /**
+                             * Creates a new Coverage instance using the specified properties.
+                             * @param [properties] Properties to set
+                             * @returns Coverage instance
+                             */
+                            public static create(properties?: google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.ICoverage): google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.Coverage;
+
+                            /**
+                             * Encodes the specified Coverage message. Does not implicitly {@link google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.Coverage.verify|verify} messages.
+                             * @param message Coverage message or plain object to encode
+                             * @param [writer] Writer to encode to
+                             * @returns Writer
+                             */
+                            public static encode(message: google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.ICoverage, writer?: $protobuf.Writer): $protobuf.Writer;
+
+                            /**
+                             * Encodes the specified Coverage message, length delimited. Does not implicitly {@link google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.Coverage.verify|verify} messages.
+                             * @param message Coverage message or plain object to encode
+                             * @param [writer] Writer to encode to
+                             * @returns Writer
+                             */
+                            public static encodeDelimited(message: google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.ICoverage, writer?: $protobuf.Writer): $protobuf.Writer;
+
+                            /**
+                             * Decodes a Coverage message from the specified reader or buffer.
+                             * @param reader Reader or buffer to decode from
+                             * @param [length] Message length if known beforehand
+                             * @returns Coverage
+                             * @throws {Error} If the payload is not a reader or valid buffer
+                             * @throws {$protobuf.util.ProtocolError} If required fields are missing
+                             */
+                            public static decode(reader: ($protobuf.Reader|Uint8Array), length?: number): google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.Coverage;
+
+                            /**
+                             * Decodes a Coverage message from the specified reader or buffer, length delimited.
+                             * @param reader Reader or buffer to decode from
+                             * @returns Coverage
+                             * @throws {Error} If the payload is not a reader or valid buffer
+                             * @throws {$protobuf.util.ProtocolError} If required fields are missing
+                             */
+                            public static decodeDelimited(reader: ($protobuf.Reader|Uint8Array)): google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.Coverage;
+
+                            /**
+                             * Verifies a Coverage message.
+                             * @param message Plain object to verify
+                             * @returns `null` if valid, otherwise the reason why it is not
+                             */
+                            public static verify(message: { [k: string]: any }): (string|null);
+
+                            /**
+                             * Creates a Coverage message from a plain object. Also converts values to their respective internal types.
+                             * @param object Plain object
+                             * @returns Coverage
+                             */
+                            public static fromObject(object: { [k: string]: any }): google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.Coverage;
+
+                            /**
+                             * Creates a plain object from a Coverage message. Also converts values to other types if specified.
+                             * @param message Coverage
+                             * @param [options] Conversion options
+                             * @returns Plain object
+                             */
+                            public static toObject(message: google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.Coverage, options?: $protobuf.IConversionOptions): { [k: string]: any };
+
+                            /**
+                             * Converts this Coverage to JSON.
+                             * @returns JSON object
+                             */
+                            public toJSON(): { [k: string]: any };
+                        }
+
+                        namespace Coverage {
+
+                            /** Properties of a Transition. */
+                            interface ITransition {
+
+                                /** Transition transitionRoute */
+                                transitionRoute?: (google.cloud.dialogflow.cx.v3.ITransitionRoute|null);
+
+                                /** Transition covered */
+                                covered?: (boolean|null);
+                            }
+
+                            /** Represents a Transition. */
+                            class Transition implements ITransition {
+
+                                /**
+                                 * Constructs a new Transition.
+                                 * @param [properties] Properties to set
+                                 */
+                                constructor(properties?: google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.Coverage.ITransition);
+
+                                /** Transition transitionRoute. */
+                                public transitionRoute?: (google.cloud.dialogflow.cx.v3.ITransitionRoute|null);
+
+                                /** Transition covered. */
+                                public covered: boolean;
+
+                                /**
+                                 * Creates a new Transition instance using the specified properties.
+                                 * @param [properties] Properties to set
+                                 * @returns Transition instance
+                                 */
+                                public static create(properties?: google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.Coverage.ITransition): google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.Coverage.Transition;
+
+                                /**
+                                 * Encodes the specified Transition message. Does not implicitly {@link google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.Coverage.Transition.verify|verify} messages.
+                                 * @param message Transition message or plain object to encode
+                                 * @param [writer] Writer to encode to
+                                 * @returns Writer
+                                 */
+                                public static encode(message: google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.Coverage.ITransition, writer?: $protobuf.Writer): $protobuf.Writer;
+
+                                /**
+                                 * Encodes the specified Transition message, length delimited. Does not implicitly {@link google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.Coverage.Transition.verify|verify} messages.
+                                 * @param message Transition message or plain object to encode
+                                 * @param [writer] Writer to encode to
+                                 * @returns Writer
+                                 */
+                                public static encodeDelimited(message: google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.Coverage.ITransition, writer?: $protobuf.Writer): $protobuf.Writer;
+
+                                /**
+                                 * Decodes a Transition message from the specified reader or buffer.
+                                 * @param reader Reader or buffer to decode from
+                                 * @param [length] Message length if known beforehand
+                                 * @returns Transition
+                                 * @throws {Error} If the payload is not a reader or valid buffer
+                                 * @throws {$protobuf.util.ProtocolError} If required fields are missing
+                                 */
+                                public static decode(reader: ($protobuf.Reader|Uint8Array), length?: number): google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.Coverage.Transition;
+
+                                /**
+                                 * Decodes a Transition message from the specified reader or buffer, length delimited.
+                                 * @param reader Reader or buffer to decode from
+                                 * @returns Transition
+                                 * @throws {Error} If the payload is not a reader or valid buffer
+                                 * @throws {$protobuf.util.ProtocolError} If required fields are missing
+                                 */
+                                public static decodeDelimited(reader: ($protobuf.Reader|Uint8Array)): google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.Coverage.Transition;
+
+                                /**
+                                 * Verifies a Transition message.
+                                 * @param message Plain object to verify
+                                 * @returns `null` if valid, otherwise the reason why it is not
+                                 */
+                                public static verify(message: { [k: string]: any }): (string|null);
+
+                                /**
+                                 * Creates a Transition message from a plain object. Also converts values to their respective internal types.
+                                 * @param object Plain object
+                                 * @returns Transition
+                                 */
+                                public static fromObject(object: { [k: string]: any }): google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.Coverage.Transition;
+
+                                /**
+                                 * Creates a plain object from a Transition message. Also converts values to other types if specified.
+                                 * @param message Transition
+                                 * @param [options] Conversion options
+                                 * @returns Plain object
+                                 */
+                                public static toObject(message: google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.Coverage.Transition, options?: $protobuf.IConversionOptions): { [k: string]: any };
+
+                                /**
+                                 * Converts this Transition to JSON.
+                                 * @returns JSON object
+                                 */
+                                public toJSON(): { [k: string]: any };
+                            }
+                        }
+                    }
+
                     /** Properties of an IntentCoverage. */
                     interface IIntentCoverage {
 
@@ -17516,7 +17816,8 @@ export namespace google {
                         enum CoverageType {
                             COVERAGE_TYPE_UNSPECIFIED = 0,
                             INTENT = 1,
-                            PAGE_TRANSITION = 2
+                            PAGE_TRANSITION = 2,
+                            TRANSITION_ROUTE_GROUP = 3
                         }
                     }
 
@@ -17531,6 +17832,9 @@ export namespace google {
 
                         /** CalculateCoverageResponse transitionCoverage */
                         transitionCoverage?: (google.cloud.dialogflow.cx.v3.ITransitionCoverage|null);
+
+                        /** CalculateCoverageResponse routeGroupCoverage */
+                        routeGroupCoverage?: (google.cloud.dialogflow.cx.v3.ITransitionRouteGroupCoverage|null);
                     }
 
                     /** Represents a CalculateCoverageResponse. */
@@ -17551,8 +17855,11 @@ export namespace google {
                         /** CalculateCoverageResponse transitionCoverage. */
                         public transitionCoverage?: (google.cloud.dialogflow.cx.v3.ITransitionCoverage|null);
 
+                        /** CalculateCoverageResponse routeGroupCoverage. */
+                        public routeGroupCoverage?: (google.cloud.dialogflow.cx.v3.ITransitionRouteGroupCoverage|null);
+
                         /** CalculateCoverageResponse coverageType. */
-                        public coverageType?: ("intentCoverage"|"transitionCoverage");
+                        public coverageType?: ("intentCoverage"|"transitionCoverage"|"routeGroupCoverage");
 
                         /**
                          * Creates a new CalculateCoverageResponse instance using the specified properties.
@@ -22591,6 +22898,9 @@ export namespace google {
 
                         /** WebhookRequest payload */
                         payload?: (google.protobuf.IStruct|null);
+
+                        /** WebhookRequest sentimentAnalysisResult */
+                        sentimentAnalysisResult?: (google.cloud.dialogflow.cx.v3.WebhookRequest.ISentimentAnalysisResult|null);
                     }
 
                     /** Represents a WebhookRequest. */
@@ -22623,6 +22933,9 @@ export namespace google {
                         /** WebhookRequest payload. */
                         public payload?: (google.protobuf.IStruct|null);
 
+                        /** WebhookRequest sentimentAnalysisResult. */
+                        public sentimentAnalysisResult?: (google.cloud.dialogflow.cx.v3.WebhookRequest.ISentimentAnalysisResult|null);
+
                         /**
                          * Creates a new WebhookRequest instance using the specified properties.
                          * @param [properties] Properties to set
@@ -22992,6 +23305,102 @@ export namespace google {
                                 public toJSON(): { [k: string]: any };
                             }
                         }
+
+                        /** Properties of a SentimentAnalysisResult. */
+                        interface ISentimentAnalysisResult {
+
+                            /** SentimentAnalysisResult score */
+                            score?: (number|null);
+
+                            /** SentimentAnalysisResult magnitude */
+                            magnitude?: (number|null);
+                        }
+
+                        /** Represents a SentimentAnalysisResult. */
+                        class SentimentAnalysisResult implements ISentimentAnalysisResult {
+
+                            /**
+                             * Constructs a new SentimentAnalysisResult.
+                             * @param [properties] Properties to set
+                             */
+                            constructor(properties?: google.cloud.dialogflow.cx.v3.WebhookRequest.ISentimentAnalysisResult);
+
+                            /** SentimentAnalysisResult score. */
+                            public score: number;
+
+                            /** SentimentAnalysisResult magnitude. */
+                            public magnitude: number;
+
+                            /**
+                             * Creates a new SentimentAnalysisResult instance using the specified properties.
+                             * @param [properties] Properties to set
+                             * @returns SentimentAnalysisResult instance
+                             */
+                            public static create(properties?: google.cloud.dialogflow.cx.v3.WebhookRequest.ISentimentAnalysisResult): google.cloud.dialogflow.cx.v3.WebhookRequest.SentimentAnalysisResult;
+
+                            /**
+                             * Encodes the specified SentimentAnalysisResult message. Does not implicitly {@link google.cloud.dialogflow.cx.v3.WebhookRequest.SentimentAnalysisResult.verify|verify} messages.
+                             * @param message SentimentAnalysisResult message or plain object to encode
+                             * @param [writer] Writer to encode to
+                             * @returns Writer
+                             */
+                            public static encode(message: google.cloud.dialogflow.cx.v3.WebhookRequest.ISentimentAnalysisResult, writer?: $protobuf.Writer): $protobuf.Writer;
+
+                            /**
+                             * Encodes the specified SentimentAnalysisResult message, length delimited. Does not implicitly {@link google.cloud.dialogflow.cx.v3.WebhookRequest.SentimentAnalysisResult.verify|verify} messages.
+                             * @param message SentimentAnalysisResult message or plain object to encode
+                             * @param [writer] Writer to encode to
+                             * @returns Writer
+                             */
+                            public static encodeDelimited(message: google.cloud.dialogflow.cx.v3.WebhookRequest.ISentimentAnalysisResult, writer?: $protobuf.Writer): $protobuf.Writer;
+
+                            /**
+                             * Decodes a SentimentAnalysisResult message from the specified reader or buffer.
+                             * @param reader Reader or buffer to decode from
+                             * @param [length] Message length if known beforehand
+                             * @returns SentimentAnalysisResult
+                             * @throws {Error} If the payload is not a reader or valid buffer
+                             * @throws {$protobuf.util.ProtocolError} If required fields are missing
+                             */
+                            public static decode(reader: ($protobuf.Reader|Uint8Array), length?: number): google.cloud.dialogflow.cx.v3.WebhookRequest.SentimentAnalysisResult;
+
+                            /**
+                             * Decodes a SentimentAnalysisResult message from the specified reader or buffer, length delimited.
+                             * @param reader Reader or buffer to decode from
+                             * @returns SentimentAnalysisResult
+                             * @throws {Error} If the payload is not a reader or valid buffer
+                             * @throws {$protobuf.util.ProtocolError} If required fields are missing
+                             */
+                            public static decodeDelimited(reader: ($protobuf.Reader|Uint8Array)): google.cloud.dialogflow.cx.v3.WebhookRequest.SentimentAnalysisResult;
+
+                            /**
+                             * Verifies a SentimentAnalysisResult message.
+                             * @param message Plain object to verify
+                             * @returns `null` if valid, otherwise the reason why it is not
+                             */
+                            public static verify(message: { [k: string]: any }): (string|null);
+
+                            /**
+                             * Creates a SentimentAnalysisResult message from a plain object. Also converts values to their respective internal types.
+                             * @param object Plain object
+                             * @returns SentimentAnalysisResult
+                             */
+                            public static fromObject(object: { [k: string]: any }): google.cloud.dialogflow.cx.v3.WebhookRequest.SentimentAnalysisResult;
+
+                            /**
+                             * Creates a plain object from a SentimentAnalysisResult message. Also converts values to other types if specified.
+                             * @param message SentimentAnalysisResult
+                             * @param [options] Conversion options
+                             * @returns Plain object
+                             */
+                            public static toObject(message: google.cloud.dialogflow.cx.v3.WebhookRequest.SentimentAnalysisResult, options?: $protobuf.IConversionOptions): { [k: string]: any };
+
+                            /**
+                             * Converts this SentimentAnalysisResult to JSON.
+                             * @returns JSON object
+                             */
+                            public toJSON(): { [k: string]: any };
+                        }
                     }
 
                     /** Properties of a WebhookResponse. */
@@ -31035,14 +31444,6 @@ export namespace google {
                         public toJSON(): { [k: string]: any };
                     }
 
-                    /** SsmlVoiceGender enum. */
-                    enum SsmlVoiceGender {
-                        SSML_VOICE_GENDER_UNSPECIFIED = 0,
-                        SSML_VOICE_GENDER_MALE = 1,
-                        SSML_VOICE_GENDER_FEMALE = 2,
-                        SSML_VOICE_GENDER_NEUTRAL = 3
-                    }
-
                     /** Properties of an OutputAudioConfig. */
                     interface IOutputAudioConfig {
 
@@ -31145,6 +31546,14 @@ export namespace google {
                         public toJSON(): { [k: string]: any };
                     }
 
+                    /** SsmlVoiceGender enum. */
+                    enum SsmlVoiceGender {
+                        SSML_VOICE_GENDER_UNSPECIFIED = 0,
+                        SSML_VOICE_GENDER_MALE = 1,
+                        SSML_VOICE_GENDER_FEMALE = 2,
+                        SSML_VOICE_GENDER_NEUTRAL = 3
+                    }
+
                     /** OutputAudioEncoding enum. */
                     enum OutputAudioEncoding {
                         OUTPUT_AUDIO_ENCODING_UNSPECIFIED = 0,
@@ -37134,6 +37543,9 @@ export namespace google {
                         /** QueryParameters parameters */
                         parameters?: (google.protobuf.IStruct|null);
 
+                        /** QueryParameters disableWebhook */
+                        disableWebhook?: (boolean|null);
+
                         /** QueryParameters analyzeQueryTextSentiment */
                         analyzeQueryTextSentiment?: (boolean|null);
 
@@ -37165,6 +37577,9 @@ export namespace google {
                         /** QueryParameters parameters. */
                         public parameters?: (google.protobuf.IStruct|null);
 
+                        /** QueryParameters disableWebhook. */
+                        public disableWebhook: boolean;
+
                         /** QueryParameters analyzeQueryTextSentiment. */
                         public analyzeQueryTextSentiment: boolean;
 
@@ -40833,6 +41248,306 @@ export namespace google {
                         }
                     }
 
+                    /** Properties of a TransitionRouteGroupCoverage. */
+                    interface ITransitionRouteGroupCoverage {
+
+                        /** TransitionRouteGroupCoverage coverages */
+                        coverages?: (google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.ICoverage[]|null);
+
+                        /** TransitionRouteGroupCoverage coverageScore */
+                        coverageScore?: (number|null);
+                    }
+
+                    /** Represents a TransitionRouteGroupCoverage. */
+                    class TransitionRouteGroupCoverage implements ITransitionRouteGroupCoverage {
+
+                        /**
+                         * Constructs a new TransitionRouteGroupCoverage.
+                         * @param [properties] Properties to set
+                         */
+                        constructor(properties?: google.cloud.dialogflow.cx.v3beta1.ITransitionRouteGroupCoverage);
+
+                        /** TransitionRouteGroupCoverage coverages. */
+                        public coverages: google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.ICoverage[];
+
+                        /** TransitionRouteGroupCoverage coverageScore. */
+                        public coverageScore: number;
+
+                        /**
+                         * Creates a new TransitionRouteGroupCoverage instance using the specified properties.
+                         * @param [properties] Properties to set
+                         * @returns TransitionRouteGroupCoverage instance
+                         */
+                        public static create(properties?: google.cloud.dialogflow.cx.v3beta1.ITransitionRouteGroupCoverage): google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage;
+
+                        /**
+                         * Encodes the specified TransitionRouteGroupCoverage message. Does not implicitly {@link google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.verify|verify} messages.
+                         * @param message TransitionRouteGroupCoverage message or plain object to encode
+                         * @param [writer] Writer to encode to
+                         * @returns Writer
+                         */
+                        public static encode(message: google.cloud.dialogflow.cx.v3beta1.ITransitionRouteGroupCoverage, writer?: $protobuf.Writer): $protobuf.Writer;
+
+                        /**
+                         * Encodes the specified TransitionRouteGroupCoverage message, length delimited. Does not implicitly {@link google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.verify|verify} messages.
+                         * @param message TransitionRouteGroupCoverage message or plain object to encode
+                         * @param [writer] Writer to encode to
+                         * @returns Writer
+                         */
+                        public static encodeDelimited(message: google.cloud.dialogflow.cx.v3beta1.ITransitionRouteGroupCoverage, writer?: $protobuf.Writer): $protobuf.Writer;
+
+                        /**
+                         * Decodes a TransitionRouteGroupCoverage message from the specified reader or buffer.
+                         * @param reader Reader or buffer to decode from
+                         * @param [length] Message length if known beforehand
+                         * @returns TransitionRouteGroupCoverage
+                         * @throws {Error} If the payload is not a reader or valid buffer
+                         * @throws {$protobuf.util.ProtocolError} If required fields are missing
+                         */
+                        public static decode(reader: ($protobuf.Reader|Uint8Array), length?: number): google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage;
+
+                        /**
+                         * Decodes a TransitionRouteGroupCoverage message from the specified reader or buffer, length delimited.
+                         * @param reader Reader or buffer to decode from
+                         * @returns TransitionRouteGroupCoverage
+                         * @throws {Error} If the payload is not a reader or valid buffer
+                         * @throws {$protobuf.util.ProtocolError} If required fields are missing
+                         */
+                        public static decodeDelimited(reader: ($protobuf.Reader|Uint8Array)): google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage;
+
+                        /**
+                         * Verifies a TransitionRouteGroupCoverage message.
+                         * @param message Plain object to verify
+                         * @returns `null` if valid, otherwise the reason why it is not
+                         */
+                        public static verify(message: { [k: string]: any }): (string|null);
+
+                        /**
+                         * Creates a TransitionRouteGroupCoverage message from a plain object. Also converts values to their respective internal types.
+                         * @param object Plain object
+                         * @returns TransitionRouteGroupCoverage
+                         */
+                        public static fromObject(object: { [k: string]: any }): google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage;
+
+                        /**
+                         * Creates a plain object from a TransitionRouteGroupCoverage message. Also converts values to other types if specified.
+                         * @param message TransitionRouteGroupCoverage
+                         * @param [options] Conversion options
+                         * @returns Plain object
+                         */
+                        public static toObject(message: google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage, options?: $protobuf.IConversionOptions): { [k: string]: any };
+
+                        /**
+                         * Converts this TransitionRouteGroupCoverage to JSON.
+                         * @returns JSON object
+                         */
+                        public toJSON(): { [k: string]: any };
+                    }
+
+                    namespace TransitionRouteGroupCoverage {
+
+                        /** Properties of a Coverage. */
+                        interface ICoverage {
+
+                            /** Coverage routeGroup */
+                            routeGroup?: (google.cloud.dialogflow.cx.v3beta1.ITransitionRouteGroup|null);
+
+                            /** Coverage transitions */
+                            transitions?: (google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.Coverage.ITransition[]|null);
+
+                            /** Coverage coverageScore */
+                            coverageScore?: (number|null);
+                        }
+
+                        /** Represents a Coverage. */
+                        class Coverage implements ICoverage {
+
+                            /**
+                             * Constructs a new Coverage.
+                             * @param [properties] Properties to set
+                             */
+                            constructor(properties?: google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.ICoverage);
+
+                            /** Coverage routeGroup. */
+                            public routeGroup?: (google.cloud.dialogflow.cx.v3beta1.ITransitionRouteGroup|null);
+
+                            /** Coverage transitions. */
+                            public transitions: google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.Coverage.ITransition[];
+
+                            /** Coverage coverageScore. */
+                            public coverageScore: number;
+
+                            /**
+                             * Creates a new Coverage instance using the specified properties.
+                             * @param [properties] Properties to set
+                             * @returns Coverage instance
+                             */
+                            public static create(properties?: google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.ICoverage): google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.Coverage;
+
+                            /**
+                             * Encodes the specified Coverage message. Does not implicitly {@link google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.Coverage.verify|verify} messages.
+                             * @param message Coverage message or plain object to encode
+                             * @param [writer] Writer to encode to
+                             * @returns Writer
+                             */
+                            public static encode(message: google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.ICoverage, writer?: $protobuf.Writer): $protobuf.Writer;
+
+                            /**
+                             * Encodes the specified Coverage message, length delimited. Does not implicitly {@link google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.Coverage.verify|verify} messages.
+                             * @param message Coverage message or plain object to encode
+                             * @param [writer] Writer to encode to
+                             * @returns Writer
+                             */
+                            public static encodeDelimited(message: google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.ICoverage, writer?: $protobuf.Writer): $protobuf.Writer;
+
+                            /**
+                             * Decodes a Coverage message from the specified reader or buffer.
+                             * @param reader Reader or buffer to decode from
+                             * @param [length] Message length if known beforehand
+                             * @returns Coverage
+                             * @throws {Error} If the payload is not a reader or valid buffer
+                             * @throws {$protobuf.util.ProtocolError} If required fields are missing
+                             */
+                            public static decode(reader: ($protobuf.Reader|Uint8Array), length?: number): google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.Coverage;
+
+                            /**
+                             * Decodes a Coverage message from the specified reader or buffer, length delimited.
+                             * @param reader Reader or buffer to decode from
+                             * @returns Coverage
+                             * @throws {Error} If the payload is not a reader or valid buffer
+                             * @throws {$protobuf.util.ProtocolError} If required fields are missing
+                             */
+                            public static decodeDelimited(reader: ($protobuf.Reader|Uint8Array)): google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.Coverage;
+
+                            /**
+                             * Verifies a Coverage message.
+                             * @param message Plain object to verify
+                             * @returns `null` if valid, otherwise the reason why it is not
+                             */
+                            public static verify(message: { [k: string]: any }): (string|null);
+
+                            /**
+                             * Creates a Coverage message from a plain object. Also converts values to their respective internal types.
+                             * @param object Plain object
+                             * @returns Coverage
+                             */
+                            public static fromObject(object: { [k: string]: any }): google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.Coverage;
+
+                            /**
+                             * Creates a plain object from a Coverage message. Also converts values to other types if specified.
+                             * @param message Coverage
+                             * @param [options] Conversion options
+                             * @returns Plain object
+                             */
+                            public static toObject(message: google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.Coverage, options?: $protobuf.IConversionOptions): { [k: string]: any };
+
+                            /**
+                             * Converts this Coverage to JSON.
+                             * @returns JSON object
+                             */
+                            public toJSON(): { [k: string]: any };
+                        }
+
+                        namespace Coverage {
+
+                            /** Properties of a Transition. */
+                            interface ITransition {
+
+                                /** Transition transitionRoute */
+                                transitionRoute?: (google.cloud.dialogflow.cx.v3beta1.ITransitionRoute|null);
+
+                                /** Transition covered */
+                                covered?: (boolean|null);
+                            }
+
+                            /** Represents a Transition. */
+                            class Transition implements ITransition {
+
+                                /**
+                                 * Constructs a new Transition.
+                                 * @param [properties] Properties to set
+                                 */
+                                constructor(properties?: google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.Coverage.ITransition);
+
+                                /** Transition transitionRoute. */
+                                public transitionRoute?: (google.cloud.dialogflow.cx.v3beta1.ITransitionRoute|null);
+
+                                /** Transition covered. */
+                                public covered: boolean;
+
+                                /**
+                                 * Creates a new Transition instance using the specified properties.
+                                 * @param [properties] Properties to set
+                                 * @returns Transition instance
+                                 */
+                                public static create(properties?: google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.Coverage.ITransition): google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.Coverage.Transition;
+
+                                /**
+                                 * Encodes the specified Transition message. Does not implicitly {@link google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.Coverage.Transition.verify|verify} messages.
+                                 * @param message Transition message or plain object to encode
+                                 * @param [writer] Writer to encode to
+                                 * @returns Writer
+                                 */
+                                public static encode(message: google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.Coverage.ITransition, writer?: $protobuf.Writer): $protobuf.Writer;
+
+                                /**
+                                 * Encodes the specified Transition message, length delimited. Does not implicitly {@link google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.Coverage.Transition.verify|verify} messages.
+                                 * @param message Transition message or plain object to encode
+                                 * @param [writer] Writer to encode to
+                                 * @returns Writer
+                                 */
+                                public static encodeDelimited(message: google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.Coverage.ITransition, writer?: $protobuf.Writer): $protobuf.Writer;
+
+                                /**
+                                 * Decodes a Transition message from the specified reader or buffer.
+                                 * @param reader Reader or buffer to decode from
+                                 * @param [length] Message length if known beforehand
+                                 * @returns Transition
+                                 * @throws {Error} If the payload is not a reader or valid buffer
+                                 * @throws {$protobuf.util.ProtocolError} If required fields are missing
+                                 */
+                                public static decode(reader: ($protobuf.Reader|Uint8Array), length?: number): google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.Coverage.Transition;
+
+                                /**
+                                 * Decodes a Transition message from the specified reader or buffer, length delimited.
+                                 * @param reader Reader or buffer to decode from
+                                 * @returns Transition
+                                 * @throws {Error} If the payload is not a reader or valid buffer
+                                 * @throws {$protobuf.util.ProtocolError} If required fields are missing
+                                 */
+                                public static decodeDelimited(reader: ($protobuf.Reader|Uint8Array)): google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.Coverage.Transition;
+
+                                /**
+                                 * Verifies a Transition message.
+                                 * @param message Plain object to verify
+                                 * @returns `null` if valid, otherwise the reason why it is not
+                                 */
+                                public static verify(message: { [k: string]: any }): (string|null);
+
+                                /**
+                                 * Creates a Transition message from a plain object. Also converts values to their respective internal types.
+                                 * @param object Plain object
+                                 * @returns Transition
+                                 */
+                                public static fromObject(object: { [k: string]: any }): google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.Coverage.Transition;
+
+                                /**
+                                 * Creates a plain object from a Transition message. Also converts values to other types if specified.
+                                 * @param message Transition
+                                 * @param [options] Conversion options
+                                 * @returns Plain object
+                                 */
+                                public static toObject(message: google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.Coverage.Transition, options?: $protobuf.IConversionOptions): { [k: string]: any };
+
+                                /**
+                                 * Converts this Transition to JSON.
+                                 * @returns JSON object
+                                 */
+                                public toJSON(): { [k: string]: any };
+                            }
+                        }
+                    }
+
                     /** Properties of an IntentCoverage. */
                     interface IIntentCoverage {
 
@@ -41130,7 +41845,8 @@ export namespace google {
                         enum CoverageType {
                             COVERAGE_TYPE_UNSPECIFIED = 0,
                             INTENT = 1,
-                            PAGE_TRANSITION = 2
+                            PAGE_TRANSITION = 2,
+                            TRANSITION_ROUTE_GROUP = 3
                         }
                     }
 
@@ -41145,6 +41861,9 @@ export namespace google {
 
                         /** CalculateCoverageResponse transitionCoverage */
                         transitionCoverage?: (google.cloud.dialogflow.cx.v3beta1.ITransitionCoverage|null);
+
+                        /** CalculateCoverageResponse routeGroupCoverage */
+                        routeGroupCoverage?: (google.cloud.dialogflow.cx.v3beta1.ITransitionRouteGroupCoverage|null);
                     }
 
                     /** Represents a CalculateCoverageResponse. */
@@ -41165,8 +41884,11 @@ export namespace google {
                         /** CalculateCoverageResponse transitionCoverage. */
                         public transitionCoverage?: (google.cloud.dialogflow.cx.v3beta1.ITransitionCoverage|null);
 
+                        /** CalculateCoverageResponse routeGroupCoverage. */
+                        public routeGroupCoverage?: (google.cloud.dialogflow.cx.v3beta1.ITransitionRouteGroupCoverage|null);
+
                         /** CalculateCoverageResponse coverageType. */
-                        public coverageType?: ("intentCoverage"|"transitionCoverage");
+                        public coverageType?: ("intentCoverage"|"transitionCoverage"|"routeGroupCoverage");
 
                         /**
                          * Creates a new CalculateCoverageResponse instance using the specified properties.
diff --git a/packages/google-cloud-dialogflow-cx/protos/protos.js b/packages/google-cloud-dialogflow-cx/protos/protos.js
index 94cf361e8ba..7258d8ea983 100644
--- a/packages/google-cloud-dialogflow-cx/protos/protos.js
+++ b/packages/google-cloud-dialogflow-cx/protos/protos.js
@@ -12765,25 +12765,23 @@
                                 return OutputAudioText;
                             })();
     
-                            ResponseMessage.PlayAudio = (function() {
+                            ResponseMessage.EndInteraction = (function() {
     
                                 /**
-                                 * Properties of a PlayAudio.
+                                 * Properties of an EndInteraction.
                                  * @memberof google.cloud.dialogflow.cx.v3.ResponseMessage
-                                 * @interface IPlayAudio
-                                 * @property {string|null} [audioUri] PlayAudio audioUri
-                                 * @property {boolean|null} [allowPlaybackInterruption] PlayAudio allowPlaybackInterruption
+                                 * @interface IEndInteraction
                                  */
     
                                 /**
-                                 * Constructs a new PlayAudio.
+                                 * Constructs a new EndInteraction.
                                  * @memberof google.cloud.dialogflow.cx.v3.ResponseMessage
-                                 * @classdesc Represents a PlayAudio.
-                                 * @implements IPlayAudio
+                                 * @classdesc Represents an EndInteraction.
+                                 * @implements IEndInteraction
                                  * @constructor
-                                 * @param {google.cloud.dialogflow.cx.v3.ResponseMessage.IPlayAudio=} [properties] Properties to set
+                                 * @param {google.cloud.dialogflow.cx.v3.ResponseMessage.IEndInteraction=} [properties] Properties to set
                                  */
-                                function PlayAudio(properties) {
+                                function EndInteraction(properties) {
                                     if (properties)
                                         for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
                                             if (properties[keys[i]] != null)
@@ -12791,89 +12789,63 @@
                                 }
     
                                 /**
-                                 * PlayAudio audioUri.
-                                 * @member {string} audioUri
-                                 * @memberof google.cloud.dialogflow.cx.v3.ResponseMessage.PlayAudio
-                                 * @instance
-                                 */
-                                PlayAudio.prototype.audioUri = "";
-    
-                                /**
-                                 * PlayAudio allowPlaybackInterruption.
-                                 * @member {boolean} allowPlaybackInterruption
-                                 * @memberof google.cloud.dialogflow.cx.v3.ResponseMessage.PlayAudio
-                                 * @instance
-                                 */
-                                PlayAudio.prototype.allowPlaybackInterruption = false;
-    
-                                /**
-                                 * Creates a new PlayAudio instance using the specified properties.
+                                 * Creates a new EndInteraction instance using the specified properties.
                                  * @function create
-                                 * @memberof google.cloud.dialogflow.cx.v3.ResponseMessage.PlayAudio
+                                 * @memberof google.cloud.dialogflow.cx.v3.ResponseMessage.EndInteraction
                                  * @static
-                                 * @param {google.cloud.dialogflow.cx.v3.ResponseMessage.IPlayAudio=} [properties] Properties to set
-                                 * @returns {google.cloud.dialogflow.cx.v3.ResponseMessage.PlayAudio} PlayAudio instance
+                                 * @param {google.cloud.dialogflow.cx.v3.ResponseMessage.IEndInteraction=} [properties] Properties to set
+                                 * @returns {google.cloud.dialogflow.cx.v3.ResponseMessage.EndInteraction} EndInteraction instance
                                  */
-                                PlayAudio.create = function create(properties) {
-                                    return new PlayAudio(properties);
+                                EndInteraction.create = function create(properties) {
+                                    return new EndInteraction(properties);
                                 };
     
                                 /**
-                                 * Encodes the specified PlayAudio message. Does not implicitly {@link google.cloud.dialogflow.cx.v3.ResponseMessage.PlayAudio.verify|verify} messages.
+                                 * Encodes the specified EndInteraction message. Does not implicitly {@link google.cloud.dialogflow.cx.v3.ResponseMessage.EndInteraction.verify|verify} messages.
                                  * @function encode
-                                 * @memberof google.cloud.dialogflow.cx.v3.ResponseMessage.PlayAudio
+                                 * @memberof google.cloud.dialogflow.cx.v3.ResponseMessage.EndInteraction
                                  * @static
-                                 * @param {google.cloud.dialogflow.cx.v3.ResponseMessage.IPlayAudio} message PlayAudio message or plain object to encode
+                                 * @param {google.cloud.dialogflow.cx.v3.ResponseMessage.IEndInteraction} message EndInteraction message or plain object to encode
                                  * @param {$protobuf.Writer} [writer] Writer to encode to
                                  * @returns {$protobuf.Writer} Writer
                                  */
-                                PlayAudio.encode = function encode(message, writer) {
+                                EndInteraction.encode = function encode(message, writer) {
                                     if (!writer)
                                         writer = $Writer.create();
-                                    if (message.audioUri != null && Object.hasOwnProperty.call(message, "audioUri"))
-                                        writer.uint32(/* id 1, wireType 2 =*/10).string(message.audioUri);
-                                    if (message.allowPlaybackInterruption != null && Object.hasOwnProperty.call(message, "allowPlaybackInterruption"))
-                                        writer.uint32(/* id 2, wireType 0 =*/16).bool(message.allowPlaybackInterruption);
                                     return writer;
                                 };
     
                                 /**
-                                 * Encodes the specified PlayAudio message, length delimited. Does not implicitly {@link google.cloud.dialogflow.cx.v3.ResponseMessage.PlayAudio.verify|verify} messages.
+                                 * Encodes the specified EndInteraction message, length delimited. Does not implicitly {@link google.cloud.dialogflow.cx.v3.ResponseMessage.EndInteraction.verify|verify} messages.
                                  * @function encodeDelimited
-                                 * @memberof google.cloud.dialogflow.cx.v3.ResponseMessage.PlayAudio
+                                 * @memberof google.cloud.dialogflow.cx.v3.ResponseMessage.EndInteraction
                                  * @static
-                                 * @param {google.cloud.dialogflow.cx.v3.ResponseMessage.IPlayAudio} message PlayAudio message or plain object to encode
+                                 * @param {google.cloud.dialogflow.cx.v3.ResponseMessage.IEndInteraction} message EndInteraction message or plain object to encode
                                  * @param {$protobuf.Writer} [writer] Writer to encode to
                                  * @returns {$protobuf.Writer} Writer
                                  */
-                                PlayAudio.encodeDelimited = function encodeDelimited(message, writer) {
+                                EndInteraction.encodeDelimited = function encodeDelimited(message, writer) {
                                     return this.encode(message, writer).ldelim();
                                 };
     
                                 /**
-                                 * Decodes a PlayAudio message from the specified reader or buffer.
+                                 * Decodes an EndInteraction message from the specified reader or buffer.
                                  * @function decode
-                                 * @memberof google.cloud.dialogflow.cx.v3.ResponseMessage.PlayAudio
+                                 * @memberof google.cloud.dialogflow.cx.v3.ResponseMessage.EndInteraction
                                  * @static
                                  * @param {$protobuf.Reader|Uint8Array} reader Reader or buffer to decode from
                                  * @param {number} [length] Message length if known beforehand
-                                 * @returns {google.cloud.dialogflow.cx.v3.ResponseMessage.PlayAudio} PlayAudio
+                                 * @returns {google.cloud.dialogflow.cx.v3.ResponseMessage.EndInteraction} EndInteraction
                                  * @throws {Error} If the payload is not a reader or valid buffer
                                  * @throws {$protobuf.util.ProtocolError} If required fields are missing
                                  */
-                                PlayAudio.decode = function decode(reader, length) {
+                                EndInteraction.decode = function decode(reader, length) {
                                     if (!(reader instanceof $Reader))
                                         reader = $Reader.create(reader);
-                                    var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.cloud.dialogflow.cx.v3.ResponseMessage.PlayAudio();
+                                    var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.cloud.dialogflow.cx.v3.ResponseMessage.EndInteraction();
                                     while (reader.pos < end) {
                                         var tag = reader.uint32();
                                         switch (tag >>> 3) {
-                                        case 1:
-                                            message.audioUri = reader.string();
-                                            break;
-                                        case 2:
-                                            message.allowPlaybackInterruption = reader.bool();
-                                            break;
                                         default:
                                             reader.skipType(tag & 7);
                                             break;
@@ -12883,115 +12855,95 @@
                                 };
     
                                 /**
-                                 * Decodes a PlayAudio message from the specified reader or buffer, length delimited.
+                                 * Decodes an EndInteraction message from the specified reader or buffer, length delimited.
                                  * @function decodeDelimited
-                                 * @memberof google.cloud.dialogflow.cx.v3.ResponseMessage.PlayAudio
+                                 * @memberof google.cloud.dialogflow.cx.v3.ResponseMessage.EndInteraction
                                  * @static
                                  * @param {$protobuf.Reader|Uint8Array} reader Reader or buffer to decode from
-                                 * @returns {google.cloud.dialogflow.cx.v3.ResponseMessage.PlayAudio} PlayAudio
+                                 * @returns {google.cloud.dialogflow.cx.v3.ResponseMessage.EndInteraction} EndInteraction
                                  * @throws {Error} If the payload is not a reader or valid buffer
                                  * @throws {$protobuf.util.ProtocolError} If required fields are missing
                                  */
-                                PlayAudio.decodeDelimited = function decodeDelimited(reader) {
+                                EndInteraction.decodeDelimited = function decodeDelimited(reader) {
                                     if (!(reader instanceof $Reader))
                                         reader = new $Reader(reader);
                                     return this.decode(reader, reader.uint32());
                                 };
     
                                 /**
-                                 * Verifies a PlayAudio message.
+                                 * Verifies an EndInteraction message.
                                  * @function verify
-                                 * @memberof google.cloud.dialogflow.cx.v3.ResponseMessage.PlayAudio
+                                 * @memberof google.cloud.dialogflow.cx.v3.ResponseMessage.EndInteraction
                                  * @static
                                  * @param {Object.<string,*>} message Plain object to verify
                                  * @returns {string|null} `null` if valid, otherwise the reason why it is not
                                  */
-                                PlayAudio.verify = function verify(message) {
+                                EndInteraction.verify = function verify(message) {
                                     if (typeof message !== "object" || message === null)
                                         return "object expected";
-                                    if (message.audioUri != null && message.hasOwnProperty("audioUri"))
-                                        if (!$util.isString(message.audioUri))
-                                            return "audioUri: string expected";
-                                    if (message.allowPlaybackInterruption != null && message.hasOwnProperty("allowPlaybackInterruption"))
-                                        if (typeof message.allowPlaybackInterruption !== "boolean")
-                                            return "allowPlaybackInterruption: boolean expected";
                                     return null;
                                 };
     
                                 /**
-                                 * Creates a PlayAudio message from a plain object. Also converts values to their respective internal types.
+                                 * Creates an EndInteraction message from a plain object. Also converts values to their respective internal types.
                                  * @function fromObject
-                                 * @memberof google.cloud.dialogflow.cx.v3.ResponseMessage.PlayAudio
+                                 * @memberof google.cloud.dialogflow.cx.v3.ResponseMessage.EndInteraction
                                  * @static
                                  * @param {Object.<string,*>} object Plain object
-                                 * @returns {google.cloud.dialogflow.cx.v3.ResponseMessage.PlayAudio} PlayAudio
+                                 * @returns {google.cloud.dialogflow.cx.v3.ResponseMessage.EndInteraction} EndInteraction
                                  */
-                                PlayAudio.fromObject = function fromObject(object) {
-                                    if (object instanceof $root.google.cloud.dialogflow.cx.v3.ResponseMessage.PlayAudio)
+                                EndInteraction.fromObject = function fromObject(object) {
+                                    if (object instanceof $root.google.cloud.dialogflow.cx.v3.ResponseMessage.EndInteraction)
                                         return object;
-                                    var message = new $root.google.cloud.dialogflow.cx.v3.ResponseMessage.PlayAudio();
-                                    if (object.audioUri != null)
-                                        message.audioUri = String(object.audioUri);
-                                    if (object.allowPlaybackInterruption != null)
-                                        message.allowPlaybackInterruption = Boolean(object.allowPlaybackInterruption);
-                                    return message;
+                                    return new $root.google.cloud.dialogflow.cx.v3.ResponseMessage.EndInteraction();
                                 };
     
                                 /**
-                                 * Creates a plain object from a PlayAudio message. Also converts values to other types if specified.
+                                 * Creates a plain object from an EndInteraction message. Also converts values to other types if specified.
                                  * @function toObject
-                                 * @memberof google.cloud.dialogflow.cx.v3.ResponseMessage.PlayAudio
+                                 * @memberof google.cloud.dialogflow.cx.v3.ResponseMessage.EndInteraction
                                  * @static
-                                 * @param {google.cloud.dialogflow.cx.v3.ResponseMessage.PlayAudio} message PlayAudio
+                                 * @param {google.cloud.dialogflow.cx.v3.ResponseMessage.EndInteraction} message EndInteraction
                                  * @param {$protobuf.IConversionOptions} [options] Conversion options
                                  * @returns {Object.<string,*>} Plain object
                                  */
-                                PlayAudio.toObject = function toObject(message, options) {
-                                    if (!options)
-                                        options = {};
-                                    var object = {};
-                                    if (options.defaults) {
-                                        object.audioUri = "";
-                                        object.allowPlaybackInterruption = false;
-                                    }
-                                    if (message.audioUri != null && message.hasOwnProperty("audioUri"))
-                                        object.audioUri = message.audioUri;
-                                    if (message.allowPlaybackInterruption != null && message.hasOwnProperty("allowPlaybackInterruption"))
-                                        object.allowPlaybackInterruption = message.allowPlaybackInterruption;
-                                    return object;
+                                EndInteraction.toObject = function toObject() {
+                                    return {};
                                 };
     
                                 /**
-                                 * Converts this PlayAudio to JSON.
+                                 * Converts this EndInteraction to JSON.
                                  * @function toJSON
-                                 * @memberof google.cloud.dialogflow.cx.v3.ResponseMessage.PlayAudio
+                                 * @memberof google.cloud.dialogflow.cx.v3.ResponseMessage.EndInteraction
                                  * @instance
                                  * @returns {Object.<string,*>} JSON object
                                  */
-                                PlayAudio.prototype.toJSON = function toJSON() {
+                                EndInteraction.prototype.toJSON = function toJSON() {
                                     return this.constructor.toObject(this, $protobuf.util.toJSONOptions);
                                 };
     
-                                return PlayAudio;
+                                return EndInteraction;
                             })();
     
-                            ResponseMessage.EndInteraction = (function() {
+                            ResponseMessage.PlayAudio = (function() {
     
                                 /**
-                                 * Properties of an EndInteraction.
+                                 * Properties of a PlayAudio.
                                  * @memberof google.cloud.dialogflow.cx.v3.ResponseMessage
-                                 * @interface IEndInteraction
+                                 * @interface IPlayAudio
+                                 * @property {string|null} [audioUri] PlayAudio audioUri
+                                 * @property {boolean|null} [allowPlaybackInterruption] PlayAudio allowPlaybackInterruption
                                  */
     
                                 /**
-                                 * Constructs a new EndInteraction.
+                                 * Constructs a new PlayAudio.
                                  * @memberof google.cloud.dialogflow.cx.v3.ResponseMessage
-                                 * @classdesc Represents an EndInteraction.
-                                 * @implements IEndInteraction
+                                 * @classdesc Represents a PlayAudio.
+                                 * @implements IPlayAudio
                                  * @constructor
-                                 * @param {google.cloud.dialogflow.cx.v3.ResponseMessage.IEndInteraction=} [properties] Properties to set
+                                 * @param {google.cloud.dialogflow.cx.v3.ResponseMessage.IPlayAudio=} [properties] Properties to set
                                  */
-                                function EndInteraction(properties) {
+                                function PlayAudio(properties) {
                                     if (properties)
                                         for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
                                             if (properties[keys[i]] != null)
@@ -12999,63 +12951,89 @@
                                 }
     
                                 /**
-                                 * Creates a new EndInteraction instance using the specified properties.
+                                 * PlayAudio audioUri.
+                                 * @member {string} audioUri
+                                 * @memberof google.cloud.dialogflow.cx.v3.ResponseMessage.PlayAudio
+                                 * @instance
+                                 */
+                                PlayAudio.prototype.audioUri = "";
+    
+                                /**
+                                 * PlayAudio allowPlaybackInterruption.
+                                 * @member {boolean} allowPlaybackInterruption
+                                 * @memberof google.cloud.dialogflow.cx.v3.ResponseMessage.PlayAudio
+                                 * @instance
+                                 */
+                                PlayAudio.prototype.allowPlaybackInterruption = false;
+    
+                                /**
+                                 * Creates a new PlayAudio instance using the specified properties.
                                  * @function create
-                                 * @memberof google.cloud.dialogflow.cx.v3.ResponseMessage.EndInteraction
+                                 * @memberof google.cloud.dialogflow.cx.v3.ResponseMessage.PlayAudio
                                  * @static
-                                 * @param {google.cloud.dialogflow.cx.v3.ResponseMessage.IEndInteraction=} [properties] Properties to set
-                                 * @returns {google.cloud.dialogflow.cx.v3.ResponseMessage.EndInteraction} EndInteraction instance
+                                 * @param {google.cloud.dialogflow.cx.v3.ResponseMessage.IPlayAudio=} [properties] Properties to set
+                                 * @returns {google.cloud.dialogflow.cx.v3.ResponseMessage.PlayAudio} PlayAudio instance
                                  */
-                                EndInteraction.create = function create(properties) {
-                                    return new EndInteraction(properties);
+                                PlayAudio.create = function create(properties) {
+                                    return new PlayAudio(properties);
                                 };
     
                                 /**
-                                 * Encodes the specified EndInteraction message. Does not implicitly {@link google.cloud.dialogflow.cx.v3.ResponseMessage.EndInteraction.verify|verify} messages.
+                                 * Encodes the specified PlayAudio message. Does not implicitly {@link google.cloud.dialogflow.cx.v3.ResponseMessage.PlayAudio.verify|verify} messages.
                                  * @function encode
-                                 * @memberof google.cloud.dialogflow.cx.v3.ResponseMessage.EndInteraction
+                                 * @memberof google.cloud.dialogflow.cx.v3.ResponseMessage.PlayAudio
                                  * @static
-                                 * @param {google.cloud.dialogflow.cx.v3.ResponseMessage.IEndInteraction} message EndInteraction message or plain object to encode
+                                 * @param {google.cloud.dialogflow.cx.v3.ResponseMessage.IPlayAudio} message PlayAudio message or plain object to encode
                                  * @param {$protobuf.Writer} [writer] Writer to encode to
                                  * @returns {$protobuf.Writer} Writer
                                  */
-                                EndInteraction.encode = function encode(message, writer) {
+                                PlayAudio.encode = function encode(message, writer) {
                                     if (!writer)
                                         writer = $Writer.create();
+                                    if (message.audioUri != null && Object.hasOwnProperty.call(message, "audioUri"))
+                                        writer.uint32(/* id 1, wireType 2 =*/10).string(message.audioUri);
+                                    if (message.allowPlaybackInterruption != null && Object.hasOwnProperty.call(message, "allowPlaybackInterruption"))
+                                        writer.uint32(/* id 2, wireType 0 =*/16).bool(message.allowPlaybackInterruption);
                                     return writer;
                                 };
     
                                 /**
-                                 * Encodes the specified EndInteraction message, length delimited. Does not implicitly {@link google.cloud.dialogflow.cx.v3.ResponseMessage.EndInteraction.verify|verify} messages.
+                                 * Encodes the specified PlayAudio message, length delimited. Does not implicitly {@link google.cloud.dialogflow.cx.v3.ResponseMessage.PlayAudio.verify|verify} messages.
                                  * @function encodeDelimited
-                                 * @memberof google.cloud.dialogflow.cx.v3.ResponseMessage.EndInteraction
+                                 * @memberof google.cloud.dialogflow.cx.v3.ResponseMessage.PlayAudio
                                  * @static
-                                 * @param {google.cloud.dialogflow.cx.v3.ResponseMessage.IEndInteraction} message EndInteraction message or plain object to encode
+                                 * @param {google.cloud.dialogflow.cx.v3.ResponseMessage.IPlayAudio} message PlayAudio message or plain object to encode
                                  * @param {$protobuf.Writer} [writer] Writer to encode to
                                  * @returns {$protobuf.Writer} Writer
                                  */
-                                EndInteraction.encodeDelimited = function encodeDelimited(message, writer) {
+                                PlayAudio.encodeDelimited = function encodeDelimited(message, writer) {
                                     return this.encode(message, writer).ldelim();
                                 };
     
                                 /**
-                                 * Decodes an EndInteraction message from the specified reader or buffer.
+                                 * Decodes a PlayAudio message from the specified reader or buffer.
                                  * @function decode
-                                 * @memberof google.cloud.dialogflow.cx.v3.ResponseMessage.EndInteraction
+                                 * @memberof google.cloud.dialogflow.cx.v3.ResponseMessage.PlayAudio
                                  * @static
                                  * @param {$protobuf.Reader|Uint8Array} reader Reader or buffer to decode from
                                  * @param {number} [length] Message length if known beforehand
-                                 * @returns {google.cloud.dialogflow.cx.v3.ResponseMessage.EndInteraction} EndInteraction
+                                 * @returns {google.cloud.dialogflow.cx.v3.ResponseMessage.PlayAudio} PlayAudio
                                  * @throws {Error} If the payload is not a reader or valid buffer
                                  * @throws {$protobuf.util.ProtocolError} If required fields are missing
                                  */
-                                EndInteraction.decode = function decode(reader, length) {
+                                PlayAudio.decode = function decode(reader, length) {
                                     if (!(reader instanceof $Reader))
                                         reader = $Reader.create(reader);
-                                    var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.cloud.dialogflow.cx.v3.ResponseMessage.EndInteraction();
+                                    var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.cloud.dialogflow.cx.v3.ResponseMessage.PlayAudio();
                                     while (reader.pos < end) {
                                         var tag = reader.uint32();
                                         switch (tag >>> 3) {
+                                        case 1:
+                                            message.audioUri = reader.string();
+                                            break;
+                                        case 2:
+                                            message.allowPlaybackInterruption = reader.bool();
+                                            break;
                                         default:
                                             reader.skipType(tag & 7);
                                             break;
@@ -13065,74 +13043,96 @@
                                 };
     
                                 /**
-                                 * Decodes an EndInteraction message from the specified reader or buffer, length delimited.
+                                 * Decodes a PlayAudio message from the specified reader or buffer, length delimited.
                                  * @function decodeDelimited
-                                 * @memberof google.cloud.dialogflow.cx.v3.ResponseMessage.EndInteraction
+                                 * @memberof google.cloud.dialogflow.cx.v3.ResponseMessage.PlayAudio
                                  * @static
                                  * @param {$protobuf.Reader|Uint8Array} reader Reader or buffer to decode from
-                                 * @returns {google.cloud.dialogflow.cx.v3.ResponseMessage.EndInteraction} EndInteraction
+                                 * @returns {google.cloud.dialogflow.cx.v3.ResponseMessage.PlayAudio} PlayAudio
                                  * @throws {Error} If the payload is not a reader or valid buffer
                                  * @throws {$protobuf.util.ProtocolError} If required fields are missing
                                  */
-                                EndInteraction.decodeDelimited = function decodeDelimited(reader) {
+                                PlayAudio.decodeDelimited = function decodeDelimited(reader) {
                                     if (!(reader instanceof $Reader))
                                         reader = new $Reader(reader);
                                     return this.decode(reader, reader.uint32());
                                 };
     
                                 /**
-                                 * Verifies an EndInteraction message.
+                                 * Verifies a PlayAudio message.
                                  * @function verify
-                                 * @memberof google.cloud.dialogflow.cx.v3.ResponseMessage.EndInteraction
+                                 * @memberof google.cloud.dialogflow.cx.v3.ResponseMessage.PlayAudio
                                  * @static
                                  * @param {Object.<string,*>} message Plain object to verify
                                  * @returns {string|null} `null` if valid, otherwise the reason why it is not
                                  */
-                                EndInteraction.verify = function verify(message) {
+                                PlayAudio.verify = function verify(message) {
                                     if (typeof message !== "object" || message === null)
                                         return "object expected";
+                                    if (message.audioUri != null && message.hasOwnProperty("audioUri"))
+                                        if (!$util.isString(message.audioUri))
+                                            return "audioUri: string expected";
+                                    if (message.allowPlaybackInterruption != null && message.hasOwnProperty("allowPlaybackInterruption"))
+                                        if (typeof message.allowPlaybackInterruption !== "boolean")
+                                            return "allowPlaybackInterruption: boolean expected";
                                     return null;
                                 };
     
                                 /**
-                                 * Creates an EndInteraction message from a plain object. Also converts values to their respective internal types.
+                                 * Creates a PlayAudio message from a plain object. Also converts values to their respective internal types.
                                  * @function fromObject
-                                 * @memberof google.cloud.dialogflow.cx.v3.ResponseMessage.EndInteraction
+                                 * @memberof google.cloud.dialogflow.cx.v3.ResponseMessage.PlayAudio
                                  * @static
                                  * @param {Object.<string,*>} object Plain object
-                                 * @returns {google.cloud.dialogflow.cx.v3.ResponseMessage.EndInteraction} EndInteraction
+                                 * @returns {google.cloud.dialogflow.cx.v3.ResponseMessage.PlayAudio} PlayAudio
                                  */
-                                EndInteraction.fromObject = function fromObject(object) {
-                                    if (object instanceof $root.google.cloud.dialogflow.cx.v3.ResponseMessage.EndInteraction)
+                                PlayAudio.fromObject = function fromObject(object) {
+                                    if (object instanceof $root.google.cloud.dialogflow.cx.v3.ResponseMessage.PlayAudio)
                                         return object;
-                                    return new $root.google.cloud.dialogflow.cx.v3.ResponseMessage.EndInteraction();
+                                    var message = new $root.google.cloud.dialogflow.cx.v3.ResponseMessage.PlayAudio();
+                                    if (object.audioUri != null)
+                                        message.audioUri = String(object.audioUri);
+                                    if (object.allowPlaybackInterruption != null)
+                                        message.allowPlaybackInterruption = Boolean(object.allowPlaybackInterruption);
+                                    return message;
                                 };
     
                                 /**
-                                 * Creates a plain object from an EndInteraction message. Also converts values to other types if specified.
+                                 * Creates a plain object from a PlayAudio message. Also converts values to other types if specified.
                                  * @function toObject
-                                 * @memberof google.cloud.dialogflow.cx.v3.ResponseMessage.EndInteraction
+                                 * @memberof google.cloud.dialogflow.cx.v3.ResponseMessage.PlayAudio
                                  * @static
-                                 * @param {google.cloud.dialogflow.cx.v3.ResponseMessage.EndInteraction} message EndInteraction
+                                 * @param {google.cloud.dialogflow.cx.v3.ResponseMessage.PlayAudio} message PlayAudio
                                  * @param {$protobuf.IConversionOptions} [options] Conversion options
                                  * @returns {Object.<string,*>} Plain object
                                  */
-                                EndInteraction.toObject = function toObject() {
-                                    return {};
+                                PlayAudio.toObject = function toObject(message, options) {
+                                    if (!options)
+                                        options = {};
+                                    var object = {};
+                                    if (options.defaults) {
+                                        object.audioUri = "";
+                                        object.allowPlaybackInterruption = false;
+                                    }
+                                    if (message.audioUri != null && message.hasOwnProperty("audioUri"))
+                                        object.audioUri = message.audioUri;
+                                    if (message.allowPlaybackInterruption != null && message.hasOwnProperty("allowPlaybackInterruption"))
+                                        object.allowPlaybackInterruption = message.allowPlaybackInterruption;
+                                    return object;
                                 };
     
                                 /**
-                                 * Converts this EndInteraction to JSON.
+                                 * Converts this PlayAudio to JSON.
                                  * @function toJSON
-                                 * @memberof google.cloud.dialogflow.cx.v3.ResponseMessage.EndInteraction
+                                 * @memberof google.cloud.dialogflow.cx.v3.ResponseMessage.PlayAudio
                                  * @instance
                                  * @returns {Object.<string,*>} JSON object
                                  */
-                                EndInteraction.prototype.toJSON = function toJSON() {
+                                PlayAudio.prototype.toJSON = function toJSON() {
                                     return this.constructor.toObject(this, $protobuf.util.toJSONOptions);
                                 };
     
-                                return EndInteraction;
+                                return PlayAudio;
                             })();
     
                             ResponseMessage.MixedAudio = (function() {
@@ -15524,24 +15524,6 @@
                             return SynthesizeSpeechConfig;
                         })();
     
-                        /**
-                         * SsmlVoiceGender enum.
-                         * @name google.cloud.dialogflow.cx.v3.SsmlVoiceGender
-                         * @enum {number}
-                         * @property {number} SSML_VOICE_GENDER_UNSPECIFIED=0 SSML_VOICE_GENDER_UNSPECIFIED value
-                         * @property {number} SSML_VOICE_GENDER_MALE=1 SSML_VOICE_GENDER_MALE value
-                         * @property {number} SSML_VOICE_GENDER_FEMALE=2 SSML_VOICE_GENDER_FEMALE value
-                         * @property {number} SSML_VOICE_GENDER_NEUTRAL=3 SSML_VOICE_GENDER_NEUTRAL value
-                         */
-                        v3.SsmlVoiceGender = (function() {
-                            var valuesById = {}, values = Object.create(valuesById);
-                            values[valuesById[0] = "SSML_VOICE_GENDER_UNSPECIFIED"] = 0;
-                            values[valuesById[1] = "SSML_VOICE_GENDER_MALE"] = 1;
-                            values[valuesById[2] = "SSML_VOICE_GENDER_FEMALE"] = 2;
-                            values[valuesById[3] = "SSML_VOICE_GENDER_NEUTRAL"] = 3;
-                            return values;
-                        })();
-    
                         v3.OutputAudioConfig = (function() {
     
                             /**
@@ -15812,6 +15794,24 @@
                             return OutputAudioConfig;
                         })();
     
+                        /**
+                         * SsmlVoiceGender enum.
+                         * @name google.cloud.dialogflow.cx.v3.SsmlVoiceGender
+                         * @enum {number}
+                         * @property {number} SSML_VOICE_GENDER_UNSPECIFIED=0 SSML_VOICE_GENDER_UNSPECIFIED value
+                         * @property {number} SSML_VOICE_GENDER_MALE=1 SSML_VOICE_GENDER_MALE value
+                         * @property {number} SSML_VOICE_GENDER_FEMALE=2 SSML_VOICE_GENDER_FEMALE value
+                         * @property {number} SSML_VOICE_GENDER_NEUTRAL=3 SSML_VOICE_GENDER_NEUTRAL value
+                         */
+                        v3.SsmlVoiceGender = (function() {
+                            var valuesById = {}, values = Object.create(valuesById);
+                            values[valuesById[0] = "SSML_VOICE_GENDER_UNSPECIFIED"] = 0;
+                            values[valuesById[1] = "SSML_VOICE_GENDER_MALE"] = 1;
+                            values[valuesById[2] = "SSML_VOICE_GENDER_FEMALE"] = 2;
+                            values[valuesById[3] = "SSML_VOICE_GENDER_NEUTRAL"] = 3;
+                            return values;
+                        })();
+    
                         /**
                          * OutputAudioEncoding enum.
                          * @name google.cloud.dialogflow.cx.v3.OutputAudioEncoding
@@ -40642,6 +40642,711 @@
                             return TransitionCoverage;
                         })();
     
+                        v3.TransitionRouteGroupCoverage = (function() {
+    
+                            /**
+                             * Properties of a TransitionRouteGroupCoverage.
+                             * @memberof google.cloud.dialogflow.cx.v3
+                             * @interface ITransitionRouteGroupCoverage
+                             * @property {Array.<google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.ICoverage>|null} [coverages] TransitionRouteGroupCoverage coverages
+                             * @property {number|null} [coverageScore] TransitionRouteGroupCoverage coverageScore
+                             */
+    
+                            /**
+                             * Constructs a new TransitionRouteGroupCoverage.
+                             * @memberof google.cloud.dialogflow.cx.v3
+                             * @classdesc Represents a TransitionRouteGroupCoverage.
+                             * @implements ITransitionRouteGroupCoverage
+                             * @constructor
+                             * @param {google.cloud.dialogflow.cx.v3.ITransitionRouteGroupCoverage=} [properties] Properties to set
+                             */
+                            function TransitionRouteGroupCoverage(properties) {
+                                this.coverages = [];
+                                if (properties)
+                                    for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
+                                        if (properties[keys[i]] != null)
+                                            this[keys[i]] = properties[keys[i]];
+                            }
+    
+                            /**
+                             * TransitionRouteGroupCoverage coverages.
+                             * @member {Array.<google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.ICoverage>} coverages
+                             * @memberof google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage
+                             * @instance
+                             */
+                            TransitionRouteGroupCoverage.prototype.coverages = $util.emptyArray;
+    
+                            /**
+                             * TransitionRouteGroupCoverage coverageScore.
+                             * @member {number} coverageScore
+                             * @memberof google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage
+                             * @instance
+                             */
+                            TransitionRouteGroupCoverage.prototype.coverageScore = 0;
+    
+                            /**
+                             * Creates a new TransitionRouteGroupCoverage instance using the specified properties.
+                             * @function create
+                             * @memberof google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage
+                             * @static
+                             * @param {google.cloud.dialogflow.cx.v3.ITransitionRouteGroupCoverage=} [properties] Properties to set
+                             * @returns {google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage} TransitionRouteGroupCoverage instance
+                             */
+                            TransitionRouteGroupCoverage.create = function create(properties) {
+                                return new TransitionRouteGroupCoverage(properties);
+                            };
+    
+                            /**
+                             * Encodes the specified TransitionRouteGroupCoverage message. Does not implicitly {@link google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.verify|verify} messages.
+                             * @function encode
+                             * @memberof google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage
+                             * @static
+                             * @param {google.cloud.dialogflow.cx.v3.ITransitionRouteGroupCoverage} message TransitionRouteGroupCoverage message or plain object to encode
+                             * @param {$protobuf.Writer} [writer] Writer to encode to
+                             * @returns {$protobuf.Writer} Writer
+                             */
+                            TransitionRouteGroupCoverage.encode = function encode(message, writer) {
+                                if (!writer)
+                                    writer = $Writer.create();
+                                if (message.coverages != null && message.coverages.length)
+                                    for (var i = 0; i < message.coverages.length; ++i)
+                                        $root.google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.Coverage.encode(message.coverages[i], writer.uint32(/* id 1, wireType 2 =*/10).fork()).ldelim();
+                                if (message.coverageScore != null && Object.hasOwnProperty.call(message, "coverageScore"))
+                                    writer.uint32(/* id 2, wireType 5 =*/21).float(message.coverageScore);
+                                return writer;
+                            };
+    
+                            /**
+                             * Encodes the specified TransitionRouteGroupCoverage message, length delimited. Does not implicitly {@link google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.verify|verify} messages.
+                             * @function encodeDelimited
+                             * @memberof google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage
+                             * @static
+                             * @param {google.cloud.dialogflow.cx.v3.ITransitionRouteGroupCoverage} message TransitionRouteGroupCoverage message or plain object to encode
+                             * @param {$protobuf.Writer} [writer] Writer to encode to
+                             * @returns {$protobuf.Writer} Writer
+                             */
+                            TransitionRouteGroupCoverage.encodeDelimited = function encodeDelimited(message, writer) {
+                                return this.encode(message, writer).ldelim();
+                            };
+    
+                            /**
+                             * Decodes a TransitionRouteGroupCoverage message from the specified reader or buffer.
+                             * @function decode
+                             * @memberof google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage
+                             * @static
+                             * @param {$protobuf.Reader|Uint8Array} reader Reader or buffer to decode from
+                             * @param {number} [length] Message length if known beforehand
+                             * @returns {google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage} TransitionRouteGroupCoverage
+                             * @throws {Error} If the payload is not a reader or valid buffer
+                             * @throws {$protobuf.util.ProtocolError} If required fields are missing
+                             */
+                            TransitionRouteGroupCoverage.decode = function decode(reader, length) {
+                                if (!(reader instanceof $Reader))
+                                    reader = $Reader.create(reader);
+                                var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage();
+                                while (reader.pos < end) {
+                                    var tag = reader.uint32();
+                                    switch (tag >>> 3) {
+                                    case 1:
+                                        if (!(message.coverages && message.coverages.length))
+                                            message.coverages = [];
+                                        message.coverages.push($root.google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.Coverage.decode(reader, reader.uint32()));
+                                        break;
+                                    case 2:
+                                        message.coverageScore = reader.float();
+                                        break;
+                                    default:
+                                        reader.skipType(tag & 7);
+                                        break;
+                                    }
+                                }
+                                return message;
+                            };
+    
+                            /**
+                             * Decodes a TransitionRouteGroupCoverage message from the specified reader or buffer, length delimited.
+                             * @function decodeDelimited
+                             * @memberof google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage
+                             * @static
+                             * @param {$protobuf.Reader|Uint8Array} reader Reader or buffer to decode from
+                             * @returns {google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage} TransitionRouteGroupCoverage
+                             * @throws {Error} If the payload is not a reader or valid buffer
+                             * @throws {$protobuf.util.ProtocolError} If required fields are missing
+                             */
+                            TransitionRouteGroupCoverage.decodeDelimited = function decodeDelimited(reader) {
+                                if (!(reader instanceof $Reader))
+                                    reader = new $Reader(reader);
+                                return this.decode(reader, reader.uint32());
+                            };
+    
+                            /**
+                             * Verifies a TransitionRouteGroupCoverage message.
+                             * @function verify
+                             * @memberof google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage
+                             * @static
+                             * @param {Object.<string,*>} message Plain object to verify
+                             * @returns {string|null} `null` if valid, otherwise the reason why it is not
+                             */
+                            TransitionRouteGroupCoverage.verify = function verify(message) {
+                                if (typeof message !== "object" || message === null)
+                                    return "object expected";
+                                if (message.coverages != null && message.hasOwnProperty("coverages")) {
+                                    if (!Array.isArray(message.coverages))
+                                        return "coverages: array expected";
+                                    for (var i = 0; i < message.coverages.length; ++i) {
+                                        var error = $root.google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.Coverage.verify(message.coverages[i]);
+                                        if (error)
+                                            return "coverages." + error;
+                                    }
+                                }
+                                if (message.coverageScore != null && message.hasOwnProperty("coverageScore"))
+                                    if (typeof message.coverageScore !== "number")
+                                        return "coverageScore: number expected";
+                                return null;
+                            };
+    
+                            /**
+                             * Creates a TransitionRouteGroupCoverage message from a plain object. Also converts values to their respective internal types.
+                             * @function fromObject
+                             * @memberof google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage
+                             * @static
+                             * @param {Object.<string,*>} object Plain object
+                             * @returns {google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage} TransitionRouteGroupCoverage
+                             */
+                            TransitionRouteGroupCoverage.fromObject = function fromObject(object) {
+                                if (object instanceof $root.google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage)
+                                    return object;
+                                var message = new $root.google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage();
+                                if (object.coverages) {
+                                    if (!Array.isArray(object.coverages))
+                                        throw TypeError(".google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.coverages: array expected");
+                                    message.coverages = [];
+                                    for (var i = 0; i < object.coverages.length; ++i) {
+                                        if (typeof object.coverages[i] !== "object")
+                                            throw TypeError(".google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.coverages: object expected");
+                                        message.coverages[i] = $root.google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.Coverage.fromObject(object.coverages[i]);
+                                    }
+                                }
+                                if (object.coverageScore != null)
+                                    message.coverageScore = Number(object.coverageScore);
+                                return message;
+                            };
+    
+                            /**
+                             * Creates a plain object from a TransitionRouteGroupCoverage message. Also converts values to other types if specified.
+                             * @function toObject
+                             * @memberof google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage
+                             * @static
+                             * @param {google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage} message TransitionRouteGroupCoverage
+                             * @param {$protobuf.IConversionOptions} [options] Conversion options
+                             * @returns {Object.<string,*>} Plain object
+                             */
+                            TransitionRouteGroupCoverage.toObject = function toObject(message, options) {
+                                if (!options)
+                                    options = {};
+                                var object = {};
+                                if (options.arrays || options.defaults)
+                                    object.coverages = [];
+                                if (options.defaults)
+                                    object.coverageScore = 0;
+                                if (message.coverages && message.coverages.length) {
+                                    object.coverages = [];
+                                    for (var j = 0; j < message.coverages.length; ++j)
+                                        object.coverages[j] = $root.google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.Coverage.toObject(message.coverages[j], options);
+                                }
+                                if (message.coverageScore != null && message.hasOwnProperty("coverageScore"))
+                                    object.coverageScore = options.json && !isFinite(message.coverageScore) ? String(message.coverageScore) : message.coverageScore;
+                                return object;
+                            };
+    
+                            /**
+                             * Converts this TransitionRouteGroupCoverage to JSON.
+                             * @function toJSON
+                             * @memberof google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage
+                             * @instance
+                             * @returns {Object.<string,*>} JSON object
+                             */
+                            TransitionRouteGroupCoverage.prototype.toJSON = function toJSON() {
+                                return this.constructor.toObject(this, $protobuf.util.toJSONOptions);
+                            };
+    
+                            TransitionRouteGroupCoverage.Coverage = (function() {
+    
+                                /**
+                                 * Properties of a Coverage.
+                                 * @memberof google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage
+                                 * @interface ICoverage
+                                 * @property {google.cloud.dialogflow.cx.v3.ITransitionRouteGroup|null} [routeGroup] Coverage routeGroup
+                                 * @property {Array.<google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.Coverage.ITransition>|null} [transitions] Coverage transitions
+                                 * @property {number|null} [coverageScore] Coverage coverageScore
+                                 */
+    
+                                /**
+                                 * Constructs a new Coverage.
+                                 * @memberof google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage
+                                 * @classdesc Represents a Coverage.
+                                 * @implements ICoverage
+                                 * @constructor
+                                 * @param {google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.ICoverage=} [properties] Properties to set
+                                 */
+                                function Coverage(properties) {
+                                    this.transitions = [];
+                                    if (properties)
+                                        for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
+                                            if (properties[keys[i]] != null)
+                                                this[keys[i]] = properties[keys[i]];
+                                }
+    
+                                /**
+                                 * Coverage routeGroup.
+                                 * @member {google.cloud.dialogflow.cx.v3.ITransitionRouteGroup|null|undefined} routeGroup
+                                 * @memberof google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.Coverage
+                                 * @instance
+                                 */
+                                Coverage.prototype.routeGroup = null;
+    
+                                /**
+                                 * Coverage transitions.
+                                 * @member {Array.<google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.Coverage.ITransition>} transitions
+                                 * @memberof google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.Coverage
+                                 * @instance
+                                 */
+                                Coverage.prototype.transitions = $util.emptyArray;
+    
+                                /**
+                                 * Coverage coverageScore.
+                                 * @member {number} coverageScore
+                                 * @memberof google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.Coverage
+                                 * @instance
+                                 */
+                                Coverage.prototype.coverageScore = 0;
+    
+                                /**
+                                 * Creates a new Coverage instance using the specified properties.
+                                 * @function create
+                                 * @memberof google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.Coverage
+                                 * @static
+                                 * @param {google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.ICoverage=} [properties] Properties to set
+                                 * @returns {google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.Coverage} Coverage instance
+                                 */
+                                Coverage.create = function create(properties) {
+                                    return new Coverage(properties);
+                                };
+    
+                                /**
+                                 * Encodes the specified Coverage message. Does not implicitly {@link google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.Coverage.verify|verify} messages.
+                                 * @function encode
+                                 * @memberof google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.Coverage
+                                 * @static
+                                 * @param {google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.ICoverage} message Coverage message or plain object to encode
+                                 * @param {$protobuf.Writer} [writer] Writer to encode to
+                                 * @returns {$protobuf.Writer} Writer
+                                 */
+                                Coverage.encode = function encode(message, writer) {
+                                    if (!writer)
+                                        writer = $Writer.create();
+                                    if (message.routeGroup != null && Object.hasOwnProperty.call(message, "routeGroup"))
+                                        $root.google.cloud.dialogflow.cx.v3.TransitionRouteGroup.encode(message.routeGroup, writer.uint32(/* id 1, wireType 2 =*/10).fork()).ldelim();
+                                    if (message.transitions != null && message.transitions.length)
+                                        for (var i = 0; i < message.transitions.length; ++i)
+                                            $root.google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.Coverage.Transition.encode(message.transitions[i], writer.uint32(/* id 2, wireType 2 =*/18).fork()).ldelim();
+                                    if (message.coverageScore != null && Object.hasOwnProperty.call(message, "coverageScore"))
+                                        writer.uint32(/* id 3, wireType 5 =*/29).float(message.coverageScore);
+                                    return writer;
+                                };
+    
+                                /**
+                                 * Encodes the specified Coverage message, length delimited. Does not implicitly {@link google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.Coverage.verify|verify} messages.
+                                 * @function encodeDelimited
+                                 * @memberof google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.Coverage
+                                 * @static
+                                 * @param {google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.ICoverage} message Coverage message or plain object to encode
+                                 * @param {$protobuf.Writer} [writer] Writer to encode to
+                                 * @returns {$protobuf.Writer} Writer
+                                 */
+                                Coverage.encodeDelimited = function encodeDelimited(message, writer) {
+                                    return this.encode(message, writer).ldelim();
+                                };
+    
+                                /**
+                                 * Decodes a Coverage message from the specified reader or buffer.
+                                 * @function decode
+                                 * @memberof google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.Coverage
+                                 * @static
+                                 * @param {$protobuf.Reader|Uint8Array} reader Reader or buffer to decode from
+                                 * @param {number} [length] Message length if known beforehand
+                                 * @returns {google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.Coverage} Coverage
+                                 * @throws {Error} If the payload is not a reader or valid buffer
+                                 * @throws {$protobuf.util.ProtocolError} If required fields are missing
+                                 */
+                                Coverage.decode = function decode(reader, length) {
+                                    if (!(reader instanceof $Reader))
+                                        reader = $Reader.create(reader);
+                                    var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.Coverage();
+                                    while (reader.pos < end) {
+                                        var tag = reader.uint32();
+                                        switch (tag >>> 3) {
+                                        case 1:
+                                            message.routeGroup = $root.google.cloud.dialogflow.cx.v3.TransitionRouteGroup.decode(reader, reader.uint32());
+                                            break;
+                                        case 2:
+                                            if (!(message.transitions && message.transitions.length))
+                                                message.transitions = [];
+                                            message.transitions.push($root.google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.Coverage.Transition.decode(reader, reader.uint32()));
+                                            break;
+                                        case 3:
+                                            message.coverageScore = reader.float();
+                                            break;
+                                        default:
+                                            reader.skipType(tag & 7);
+                                            break;
+                                        }
+                                    }
+                                    return message;
+                                };
+    
+                                /**
+                                 * Decodes a Coverage message from the specified reader or buffer, length delimited.
+                                 * @function decodeDelimited
+                                 * @memberof google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.Coverage
+                                 * @static
+                                 * @param {$protobuf.Reader|Uint8Array} reader Reader or buffer to decode from
+                                 * @returns {google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.Coverage} Coverage
+                                 * @throws {Error} If the payload is not a reader or valid buffer
+                                 * @throws {$protobuf.util.ProtocolError} If required fields are missing
+                                 */
+                                Coverage.decodeDelimited = function decodeDelimited(reader) {
+                                    if (!(reader instanceof $Reader))
+                                        reader = new $Reader(reader);
+                                    return this.decode(reader, reader.uint32());
+                                };
+    
+                                /**
+                                 * Verifies a Coverage message.
+                                 * @function verify
+                                 * @memberof google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.Coverage
+                                 * @static
+                                 * @param {Object.<string,*>} message Plain object to verify
+                                 * @returns {string|null} `null` if valid, otherwise the reason why it is not
+                                 */
+                                Coverage.verify = function verify(message) {
+                                    if (typeof message !== "object" || message === null)
+                                        return "object expected";
+                                    if (message.routeGroup != null && message.hasOwnProperty("routeGroup")) {
+                                        var error = $root.google.cloud.dialogflow.cx.v3.TransitionRouteGroup.verify(message.routeGroup);
+                                        if (error)
+                                            return "routeGroup." + error;
+                                    }
+                                    if (message.transitions != null && message.hasOwnProperty("transitions")) {
+                                        if (!Array.isArray(message.transitions))
+                                            return "transitions: array expected";
+                                        for (var i = 0; i < message.transitions.length; ++i) {
+                                            var error = $root.google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.Coverage.Transition.verify(message.transitions[i]);
+                                            if (error)
+                                                return "transitions." + error;
+                                        }
+                                    }
+                                    if (message.coverageScore != null && message.hasOwnProperty("coverageScore"))
+                                        if (typeof message.coverageScore !== "number")
+                                            return "coverageScore: number expected";
+                                    return null;
+                                };
+    
+                                /**
+                                 * Creates a Coverage message from a plain object. Also converts values to their respective internal types.
+                                 * @function fromObject
+                                 * @memberof google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.Coverage
+                                 * @static
+                                 * @param {Object.<string,*>} object Plain object
+                                 * @returns {google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.Coverage} Coverage
+                                 */
+                                Coverage.fromObject = function fromObject(object) {
+                                    if (object instanceof $root.google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.Coverage)
+                                        return object;
+                                    var message = new $root.google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.Coverage();
+                                    if (object.routeGroup != null) {
+                                        if (typeof object.routeGroup !== "object")
+                                            throw TypeError(".google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.Coverage.routeGroup: object expected");
+                                        message.routeGroup = $root.google.cloud.dialogflow.cx.v3.TransitionRouteGroup.fromObject(object.routeGroup);
+                                    }
+                                    if (object.transitions) {
+                                        if (!Array.isArray(object.transitions))
+                                            throw TypeError(".google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.Coverage.transitions: array expected");
+                                        message.transitions = [];
+                                        for (var i = 0; i < object.transitions.length; ++i) {
+                                            if (typeof object.transitions[i] !== "object")
+                                                throw TypeError(".google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.Coverage.transitions: object expected");
+                                            message.transitions[i] = $root.google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.Coverage.Transition.fromObject(object.transitions[i]);
+                                        }
+                                    }
+                                    if (object.coverageScore != null)
+                                        message.coverageScore = Number(object.coverageScore);
+                                    return message;
+                                };
+    
+                                /**
+                                 * Creates a plain object from a Coverage message. Also converts values to other types if specified.
+                                 * @function toObject
+                                 * @memberof google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.Coverage
+                                 * @static
+                                 * @param {google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.Coverage} message Coverage
+                                 * @param {$protobuf.IConversionOptions} [options] Conversion options
+                                 * @returns {Object.<string,*>} Plain object
+                                 */
+                                Coverage.toObject = function toObject(message, options) {
+                                    if (!options)
+                                        options = {};
+                                    var object = {};
+                                    if (options.arrays || options.defaults)
+                                        object.transitions = [];
+                                    if (options.defaults) {
+                                        object.routeGroup = null;
+                                        object.coverageScore = 0;
+                                    }
+                                    if (message.routeGroup != null && message.hasOwnProperty("routeGroup"))
+                                        object.routeGroup = $root.google.cloud.dialogflow.cx.v3.TransitionRouteGroup.toObject(message.routeGroup, options);
+                                    if (message.transitions && message.transitions.length) {
+                                        object.transitions = [];
+                                        for (var j = 0; j < message.transitions.length; ++j)
+                                            object.transitions[j] = $root.google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.Coverage.Transition.toObject(message.transitions[j], options);
+                                    }
+                                    if (message.coverageScore != null && message.hasOwnProperty("coverageScore"))
+                                        object.coverageScore = options.json && !isFinite(message.coverageScore) ? String(message.coverageScore) : message.coverageScore;
+                                    return object;
+                                };
+    
+                                /**
+                                 * Converts this Coverage to JSON.
+                                 * @function toJSON
+                                 * @memberof google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.Coverage
+                                 * @instance
+                                 * @returns {Object.<string,*>} JSON object
+                                 */
+                                Coverage.prototype.toJSON = function toJSON() {
+                                    return this.constructor.toObject(this, $protobuf.util.toJSONOptions);
+                                };
+    
+                                Coverage.Transition = (function() {
+    
+                                    /**
+                                     * Properties of a Transition.
+                                     * @memberof google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.Coverage
+                                     * @interface ITransition
+                                     * @property {google.cloud.dialogflow.cx.v3.ITransitionRoute|null} [transitionRoute] Transition transitionRoute
+                                     * @property {boolean|null} [covered] Transition covered
+                                     */
+    
+                                    /**
+                                     * Constructs a new Transition.
+                                     * @memberof google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.Coverage
+                                     * @classdesc Represents a Transition.
+                                     * @implements ITransition
+                                     * @constructor
+                                     * @param {google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.Coverage.ITransition=} [properties] Properties to set
+                                     */
+                                    function Transition(properties) {
+                                        if (properties)
+                                            for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
+                                                if (properties[keys[i]] != null)
+                                                    this[keys[i]] = properties[keys[i]];
+                                    }
+    
+                                    /**
+                                     * Transition transitionRoute.
+                                     * @member {google.cloud.dialogflow.cx.v3.ITransitionRoute|null|undefined} transitionRoute
+                                     * @memberof google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.Coverage.Transition
+                                     * @instance
+                                     */
+                                    Transition.prototype.transitionRoute = null;
+    
+                                    /**
+                                     * Transition covered.
+                                     * @member {boolean} covered
+                                     * @memberof google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.Coverage.Transition
+                                     * @instance
+                                     */
+                                    Transition.prototype.covered = false;
+    
+                                    /**
+                                     * Creates a new Transition instance using the specified properties.
+                                     * @function create
+                                     * @memberof google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.Coverage.Transition
+                                     * @static
+                                     * @param {google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.Coverage.ITransition=} [properties] Properties to set
+                                     * @returns {google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.Coverage.Transition} Transition instance
+                                     */
+                                    Transition.create = function create(properties) {
+                                        return new Transition(properties);
+                                    };
+    
+                                    /**
+                                     * Encodes the specified Transition message. Does not implicitly {@link google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.Coverage.Transition.verify|verify} messages.
+                                     * @function encode
+                                     * @memberof google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.Coverage.Transition
+                                     * @static
+                                     * @param {google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.Coverage.ITransition} message Transition message or plain object to encode
+                                     * @param {$protobuf.Writer} [writer] Writer to encode to
+                                     * @returns {$protobuf.Writer} Writer
+                                     */
+                                    Transition.encode = function encode(message, writer) {
+                                        if (!writer)
+                                            writer = $Writer.create();
+                                        if (message.transitionRoute != null && Object.hasOwnProperty.call(message, "transitionRoute"))
+                                            $root.google.cloud.dialogflow.cx.v3.TransitionRoute.encode(message.transitionRoute, writer.uint32(/* id 1, wireType 2 =*/10).fork()).ldelim();
+                                        if (message.covered != null && Object.hasOwnProperty.call(message, "covered"))
+                                            writer.uint32(/* id 2, wireType 0 =*/16).bool(message.covered);
+                                        return writer;
+                                    };
+    
+                                    /**
+                                     * Encodes the specified Transition message, length delimited. Does not implicitly {@link google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.Coverage.Transition.verify|verify} messages.
+                                     * @function encodeDelimited
+                                     * @memberof google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.Coverage.Transition
+                                     * @static
+                                     * @param {google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.Coverage.ITransition} message Transition message or plain object to encode
+                                     * @param {$protobuf.Writer} [writer] Writer to encode to
+                                     * @returns {$protobuf.Writer} Writer
+                                     */
+                                    Transition.encodeDelimited = function encodeDelimited(message, writer) {
+                                        return this.encode(message, writer).ldelim();
+                                    };
+    
+                                    /**
+                                     * Decodes a Transition message from the specified reader or buffer.
+                                     * @function decode
+                                     * @memberof google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.Coverage.Transition
+                                     * @static
+                                     * @param {$protobuf.Reader|Uint8Array} reader Reader or buffer to decode from
+                                     * @param {number} [length] Message length if known beforehand
+                                     * @returns {google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.Coverage.Transition} Transition
+                                     * @throws {Error} If the payload is not a reader or valid buffer
+                                     * @throws {$protobuf.util.ProtocolError} If required fields are missing
+                                     */
+                                    Transition.decode = function decode(reader, length) {
+                                        if (!(reader instanceof $Reader))
+                                            reader = $Reader.create(reader);
+                                        var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.Coverage.Transition();
+                                        while (reader.pos < end) {
+                                            var tag = reader.uint32();
+                                            switch (tag >>> 3) {
+                                            case 1:
+                                                message.transitionRoute = $root.google.cloud.dialogflow.cx.v3.TransitionRoute.decode(reader, reader.uint32());
+                                                break;
+                                            case 2:
+                                                message.covered = reader.bool();
+                                                break;
+                                            default:
+                                                reader.skipType(tag & 7);
+                                                break;
+                                            }
+                                        }
+                                        return message;
+                                    };
+    
+                                    /**
+                                     * Decodes a Transition message from the specified reader or buffer, length delimited.
+                                     * @function decodeDelimited
+                                     * @memberof google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.Coverage.Transition
+                                     * @static
+                                     * @param {$protobuf.Reader|Uint8Array} reader Reader or buffer to decode from
+                                     * @returns {google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.Coverage.Transition} Transition
+                                     * @throws {Error} If the payload is not a reader or valid buffer
+                                     * @throws {$protobuf.util.ProtocolError} If required fields are missing
+                                     */
+                                    Transition.decodeDelimited = function decodeDelimited(reader) {
+                                        if (!(reader instanceof $Reader))
+                                            reader = new $Reader(reader);
+                                        return this.decode(reader, reader.uint32());
+                                    };
+    
+                                    /**
+                                     * Verifies a Transition message.
+                                     * @function verify
+                                     * @memberof google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.Coverage.Transition
+                                     * @static
+                                     * @param {Object.<string,*>} message Plain object to verify
+                                     * @returns {string|null} `null` if valid, otherwise the reason why it is not
+                                     */
+                                    Transition.verify = function verify(message) {
+                                        if (typeof message !== "object" || message === null)
+                                            return "object expected";
+                                        if (message.transitionRoute != null && message.hasOwnProperty("transitionRoute")) {
+                                            var error = $root.google.cloud.dialogflow.cx.v3.TransitionRoute.verify(message.transitionRoute);
+                                            if (error)
+                                                return "transitionRoute." + error;
+                                        }
+                                        if (message.covered != null && message.hasOwnProperty("covered"))
+                                            if (typeof message.covered !== "boolean")
+                                                return "covered: boolean expected";
+                                        return null;
+                                    };
+    
+                                    /**
+                                     * Creates a Transition message from a plain object. Also converts values to their respective internal types.
+                                     * @function fromObject
+                                     * @memberof google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.Coverage.Transition
+                                     * @static
+                                     * @param {Object.<string,*>} object Plain object
+                                     * @returns {google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.Coverage.Transition} Transition
+                                     */
+                                    Transition.fromObject = function fromObject(object) {
+                                        if (object instanceof $root.google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.Coverage.Transition)
+                                            return object;
+                                        var message = new $root.google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.Coverage.Transition();
+                                        if (object.transitionRoute != null) {
+                                            if (typeof object.transitionRoute !== "object")
+                                                throw TypeError(".google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.Coverage.Transition.transitionRoute: object expected");
+                                            message.transitionRoute = $root.google.cloud.dialogflow.cx.v3.TransitionRoute.fromObject(object.transitionRoute);
+                                        }
+                                        if (object.covered != null)
+                                            message.covered = Boolean(object.covered);
+                                        return message;
+                                    };
+    
+                                    /**
+                                     * Creates a plain object from a Transition message. Also converts values to other types if specified.
+                                     * @function toObject
+                                     * @memberof google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.Coverage.Transition
+                                     * @static
+                                     * @param {google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.Coverage.Transition} message Transition
+                                     * @param {$protobuf.IConversionOptions} [options] Conversion options
+                                     * @returns {Object.<string,*>} Plain object
+                                     */
+                                    Transition.toObject = function toObject(message, options) {
+                                        if (!options)
+                                            options = {};
+                                        var object = {};
+                                        if (options.defaults) {
+                                            object.transitionRoute = null;
+                                            object.covered = false;
+                                        }
+                                        if (message.transitionRoute != null && message.hasOwnProperty("transitionRoute"))
+                                            object.transitionRoute = $root.google.cloud.dialogflow.cx.v3.TransitionRoute.toObject(message.transitionRoute, options);
+                                        if (message.covered != null && message.hasOwnProperty("covered"))
+                                            object.covered = message.covered;
+                                        return object;
+                                    };
+    
+                                    /**
+                                     * Converts this Transition to JSON.
+                                     * @function toJSON
+                                     * @memberof google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.Coverage.Transition
+                                     * @instance
+                                     * @returns {Object.<string,*>} JSON object
+                                     */
+                                    Transition.prototype.toJSON = function toJSON() {
+                                        return this.constructor.toObject(this, $protobuf.util.toJSONOptions);
+                                    };
+    
+                                    return Transition;
+                                })();
+    
+                                return Coverage;
+                            })();
+    
+                            return TransitionRouteGroupCoverage;
+                        })();
+    
                         v3.IntentCoverage = (function() {
     
                             /**
@@ -41237,6 +41942,7 @@
                                     case 0:
                                     case 1:
                                     case 2:
+                                    case 3:
                                         break;
                                     }
                                 return null;
@@ -41269,6 +41975,10 @@
                                 case 2:
                                     message.type = 2;
                                     break;
+                                case "TRANSITION_ROUTE_GROUP":
+                                case 3:
+                                    message.type = 3;
+                                    break;
                                 }
                                 return message;
                             };
@@ -41315,12 +42025,14 @@
                              * @property {number} COVERAGE_TYPE_UNSPECIFIED=0 COVERAGE_TYPE_UNSPECIFIED value
                              * @property {number} INTENT=1 INTENT value
                              * @property {number} PAGE_TRANSITION=2 PAGE_TRANSITION value
+                             * @property {number} TRANSITION_ROUTE_GROUP=3 TRANSITION_ROUTE_GROUP value
                              */
                             CalculateCoverageRequest.CoverageType = (function() {
                                 var valuesById = {}, values = Object.create(valuesById);
                                 values[valuesById[0] = "COVERAGE_TYPE_UNSPECIFIED"] = 0;
                                 values[valuesById[1] = "INTENT"] = 1;
                                 values[valuesById[2] = "PAGE_TRANSITION"] = 2;
+                                values[valuesById[3] = "TRANSITION_ROUTE_GROUP"] = 3;
                                 return values;
                             })();
     
@@ -41336,6 +42048,7 @@
                              * @property {string|null} [agent] CalculateCoverageResponse agent
                              * @property {google.cloud.dialogflow.cx.v3.IIntentCoverage|null} [intentCoverage] CalculateCoverageResponse intentCoverage
                              * @property {google.cloud.dialogflow.cx.v3.ITransitionCoverage|null} [transitionCoverage] CalculateCoverageResponse transitionCoverage
+                             * @property {google.cloud.dialogflow.cx.v3.ITransitionRouteGroupCoverage|null} [routeGroupCoverage] CalculateCoverageResponse routeGroupCoverage
                              */
     
                             /**
@@ -41377,17 +42090,25 @@
                              */
                             CalculateCoverageResponse.prototype.transitionCoverage = null;
     
+                            /**
+                             * CalculateCoverageResponse routeGroupCoverage.
+                             * @member {google.cloud.dialogflow.cx.v3.ITransitionRouteGroupCoverage|null|undefined} routeGroupCoverage
+                             * @memberof google.cloud.dialogflow.cx.v3.CalculateCoverageResponse
+                             * @instance
+                             */
+                            CalculateCoverageResponse.prototype.routeGroupCoverage = null;
+    
                             // OneOf field names bound to virtual getters and setters
                             var $oneOfFields;
     
                             /**
                              * CalculateCoverageResponse coverageType.
-                             * @member {"intentCoverage"|"transitionCoverage"|undefined} coverageType
+                             * @member {"intentCoverage"|"transitionCoverage"|"routeGroupCoverage"|undefined} coverageType
                              * @memberof google.cloud.dialogflow.cx.v3.CalculateCoverageResponse
                              * @instance
                              */
                             Object.defineProperty(CalculateCoverageResponse.prototype, "coverageType", {
-                                get: $util.oneOfGetter($oneOfFields = ["intentCoverage", "transitionCoverage"]),
+                                get: $util.oneOfGetter($oneOfFields = ["intentCoverage", "transitionCoverage", "routeGroupCoverage"]),
                                 set: $util.oneOfSetter($oneOfFields)
                             });
     
@@ -41421,6 +42142,8 @@
                                     $root.google.cloud.dialogflow.cx.v3.TransitionCoverage.encode(message.transitionCoverage, writer.uint32(/* id 4, wireType 2 =*/34).fork()).ldelim();
                                 if (message.agent != null && Object.hasOwnProperty.call(message, "agent"))
                                     writer.uint32(/* id 5, wireType 2 =*/42).string(message.agent);
+                                if (message.routeGroupCoverage != null && Object.hasOwnProperty.call(message, "routeGroupCoverage"))
+                                    $root.google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.encode(message.routeGroupCoverage, writer.uint32(/* id 6, wireType 2 =*/50).fork()).ldelim();
                                 return writer;
                             };
     
@@ -41464,6 +42187,9 @@
                                     case 4:
                                         message.transitionCoverage = $root.google.cloud.dialogflow.cx.v3.TransitionCoverage.decode(reader, reader.uint32());
                                         break;
+                                    case 6:
+                                        message.routeGroupCoverage = $root.google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.decode(reader, reader.uint32());
+                                        break;
                                     default:
                                         reader.skipType(tag & 7);
                                         break;
@@ -41521,6 +42247,16 @@
                                             return "transitionCoverage." + error;
                                     }
                                 }
+                                if (message.routeGroupCoverage != null && message.hasOwnProperty("routeGroupCoverage")) {
+                                    if (properties.coverageType === 1)
+                                        return "coverageType: multiple values";
+                                    properties.coverageType = 1;
+                                    {
+                                        var error = $root.google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.verify(message.routeGroupCoverage);
+                                        if (error)
+                                            return "routeGroupCoverage." + error;
+                                    }
+                                }
                                 return null;
                             };
     
@@ -41548,6 +42284,11 @@
                                         throw TypeError(".google.cloud.dialogflow.cx.v3.CalculateCoverageResponse.transitionCoverage: object expected");
                                     message.transitionCoverage = $root.google.cloud.dialogflow.cx.v3.TransitionCoverage.fromObject(object.transitionCoverage);
                                 }
+                                if (object.routeGroupCoverage != null) {
+                                    if (typeof object.routeGroupCoverage !== "object")
+                                        throw TypeError(".google.cloud.dialogflow.cx.v3.CalculateCoverageResponse.routeGroupCoverage: object expected");
+                                    message.routeGroupCoverage = $root.google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.fromObject(object.routeGroupCoverage);
+                                }
                                 return message;
                             };
     
@@ -41578,6 +42319,11 @@
                                 }
                                 if (message.agent != null && message.hasOwnProperty("agent"))
                                     object.agent = message.agent;
+                                if (message.routeGroupCoverage != null && message.hasOwnProperty("routeGroupCoverage")) {
+                                    object.routeGroupCoverage = $root.google.cloud.dialogflow.cx.v3.TransitionRouteGroupCoverage.toObject(message.routeGroupCoverage, options);
+                                    if (options.oneofs)
+                                        object.coverageType = "routeGroupCoverage";
+                                }
                                 return object;
                             };
     
@@ -52718,6 +53464,7 @@
                              * @property {google.cloud.dialogflow.cx.v3.ISessionInfo|null} [sessionInfo] WebhookRequest sessionInfo
                              * @property {Array.<google.cloud.dialogflow.cx.v3.IResponseMessage>|null} [messages] WebhookRequest messages
                              * @property {google.protobuf.IStruct|null} [payload] WebhookRequest payload
+                             * @property {google.cloud.dialogflow.cx.v3.WebhookRequest.ISentimentAnalysisResult|null} [sentimentAnalysisResult] WebhookRequest sentimentAnalysisResult
                              */
     
                             /**
@@ -52792,6 +53539,14 @@
                              */
                             WebhookRequest.prototype.payload = null;
     
+                            /**
+                             * WebhookRequest sentimentAnalysisResult.
+                             * @member {google.cloud.dialogflow.cx.v3.WebhookRequest.ISentimentAnalysisResult|null|undefined} sentimentAnalysisResult
+                             * @memberof google.cloud.dialogflow.cx.v3.WebhookRequest
+                             * @instance
+                             */
+                            WebhookRequest.prototype.sentimentAnalysisResult = null;
+    
                             /**
                              * Creates a new WebhookRequest instance using the specified properties.
                              * @function create
@@ -52831,6 +53586,8 @@
                                         $root.google.cloud.dialogflow.cx.v3.ResponseMessage.encode(message.messages[i], writer.uint32(/* id 7, wireType 2 =*/58).fork()).ldelim();
                                 if (message.payload != null && Object.hasOwnProperty.call(message, "payload"))
                                     $root.google.protobuf.Struct.encode(message.payload, writer.uint32(/* id 8, wireType 2 =*/66).fork()).ldelim();
+                                if (message.sentimentAnalysisResult != null && Object.hasOwnProperty.call(message, "sentimentAnalysisResult"))
+                                    $root.google.cloud.dialogflow.cx.v3.WebhookRequest.SentimentAnalysisResult.encode(message.sentimentAnalysisResult, writer.uint32(/* id 9, wireType 2 =*/74).fork()).ldelim();
                                 return writer;
                             };
     
@@ -52888,6 +53645,9 @@
                                     case 8:
                                         message.payload = $root.google.protobuf.Struct.decode(reader, reader.uint32());
                                         break;
+                                    case 9:
+                                        message.sentimentAnalysisResult = $root.google.cloud.dialogflow.cx.v3.WebhookRequest.SentimentAnalysisResult.decode(reader, reader.uint32());
+                                        break;
                                     default:
                                         reader.skipType(tag & 7);
                                         break;
@@ -52960,6 +53720,11 @@
                                     if (error)
                                         return "payload." + error;
                                 }
+                                if (message.sentimentAnalysisResult != null && message.hasOwnProperty("sentimentAnalysisResult")) {
+                                    var error = $root.google.cloud.dialogflow.cx.v3.WebhookRequest.SentimentAnalysisResult.verify(message.sentimentAnalysisResult);
+                                    if (error)
+                                        return "sentimentAnalysisResult." + error;
+                                }
                                 return null;
                             };
     
@@ -53012,6 +53777,11 @@
                                         throw TypeError(".google.cloud.dialogflow.cx.v3.WebhookRequest.payload: object expected");
                                     message.payload = $root.google.protobuf.Struct.fromObject(object.payload);
                                 }
+                                if (object.sentimentAnalysisResult != null) {
+                                    if (typeof object.sentimentAnalysisResult !== "object")
+                                        throw TypeError(".google.cloud.dialogflow.cx.v3.WebhookRequest.sentimentAnalysisResult: object expected");
+                                    message.sentimentAnalysisResult = $root.google.cloud.dialogflow.cx.v3.WebhookRequest.SentimentAnalysisResult.fromObject(object.sentimentAnalysisResult);
+                                }
                                 return message;
                             };
     
@@ -53037,6 +53807,7 @@
                                     object.sessionInfo = null;
                                     object.fulfillmentInfo = null;
                                     object.payload = null;
+                                    object.sentimentAnalysisResult = null;
                                 }
                                 if (message.detectIntentResponseId != null && message.hasOwnProperty("detectIntentResponseId"))
                                     object.detectIntentResponseId = message.detectIntentResponseId;
@@ -53055,6 +53826,8 @@
                                 }
                                 if (message.payload != null && message.hasOwnProperty("payload"))
                                     object.payload = $root.google.protobuf.Struct.toObject(message.payload, options);
+                                if (message.sentimentAnalysisResult != null && message.hasOwnProperty("sentimentAnalysisResult"))
+                                    object.sentimentAnalysisResult = $root.google.cloud.dialogflow.cx.v3.WebhookRequest.SentimentAnalysisResult.toObject(message.sentimentAnalysisResult, options);
                                 return object;
                             };
     
@@ -53768,6 +54541,216 @@
                                 return IntentInfo;
                             })();
     
+                            WebhookRequest.SentimentAnalysisResult = (function() {
+    
+                                /**
+                                 * Properties of a SentimentAnalysisResult.
+                                 * @memberof google.cloud.dialogflow.cx.v3.WebhookRequest
+                                 * @interface ISentimentAnalysisResult
+                                 * @property {number|null} [score] SentimentAnalysisResult score
+                                 * @property {number|null} [magnitude] SentimentAnalysisResult magnitude
+                                 */
+    
+                                /**
+                                 * Constructs a new SentimentAnalysisResult.
+                                 * @memberof google.cloud.dialogflow.cx.v3.WebhookRequest
+                                 * @classdesc Represents a SentimentAnalysisResult.
+                                 * @implements ISentimentAnalysisResult
+                                 * @constructor
+                                 * @param {google.cloud.dialogflow.cx.v3.WebhookRequest.ISentimentAnalysisResult=} [properties] Properties to set
+                                 */
+                                function SentimentAnalysisResult(properties) {
+                                    if (properties)
+                                        for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
+                                            if (properties[keys[i]] != null)
+                                                this[keys[i]] = properties[keys[i]];
+                                }
+    
+                                /**
+                                 * SentimentAnalysisResult score.
+                                 * @member {number} score
+                                 * @memberof google.cloud.dialogflow.cx.v3.WebhookRequest.SentimentAnalysisResult
+                                 * @instance
+                                 */
+                                SentimentAnalysisResult.prototype.score = 0;
+    
+                                /**
+                                 * SentimentAnalysisResult magnitude.
+                                 * @member {number} magnitude
+                                 * @memberof google.cloud.dialogflow.cx.v3.WebhookRequest.SentimentAnalysisResult
+                                 * @instance
+                                 */
+                                SentimentAnalysisResult.prototype.magnitude = 0;
+    
+                                /**
+                                 * Creates a new SentimentAnalysisResult instance using the specified properties.
+                                 * @function create
+                                 * @memberof google.cloud.dialogflow.cx.v3.WebhookRequest.SentimentAnalysisResult
+                                 * @static
+                                 * @param {google.cloud.dialogflow.cx.v3.WebhookRequest.ISentimentAnalysisResult=} [properties] Properties to set
+                                 * @returns {google.cloud.dialogflow.cx.v3.WebhookRequest.SentimentAnalysisResult} SentimentAnalysisResult instance
+                                 */
+                                SentimentAnalysisResult.create = function create(properties) {
+                                    return new SentimentAnalysisResult(properties);
+                                };
+    
+                                /**
+                                 * Encodes the specified SentimentAnalysisResult message. Does not implicitly {@link google.cloud.dialogflow.cx.v3.WebhookRequest.SentimentAnalysisResult.verify|verify} messages.
+                                 * @function encode
+                                 * @memberof google.cloud.dialogflow.cx.v3.WebhookRequest.SentimentAnalysisResult
+                                 * @static
+                                 * @param {google.cloud.dialogflow.cx.v3.WebhookRequest.ISentimentAnalysisResult} message SentimentAnalysisResult message or plain object to encode
+                                 * @param {$protobuf.Writer} [writer] Writer to encode to
+                                 * @returns {$protobuf.Writer} Writer
+                                 */
+                                SentimentAnalysisResult.encode = function encode(message, writer) {
+                                    if (!writer)
+                                        writer = $Writer.create();
+                                    if (message.score != null && Object.hasOwnProperty.call(message, "score"))
+                                        writer.uint32(/* id 1, wireType 5 =*/13).float(message.score);
+                                    if (message.magnitude != null && Object.hasOwnProperty.call(message, "magnitude"))
+                                        writer.uint32(/* id 2, wireType 5 =*/21).float(message.magnitude);
+                                    return writer;
+                                };
+    
+                                /**
+                                 * Encodes the specified SentimentAnalysisResult message, length delimited. Does not implicitly {@link google.cloud.dialogflow.cx.v3.WebhookRequest.SentimentAnalysisResult.verify|verify} messages.
+                                 * @function encodeDelimited
+                                 * @memberof google.cloud.dialogflow.cx.v3.WebhookRequest.SentimentAnalysisResult
+                                 * @static
+                                 * @param {google.cloud.dialogflow.cx.v3.WebhookRequest.ISentimentAnalysisResult} message SentimentAnalysisResult message or plain object to encode
+                                 * @param {$protobuf.Writer} [writer] Writer to encode to
+                                 * @returns {$protobuf.Writer} Writer
+                                 */
+                                SentimentAnalysisResult.encodeDelimited = function encodeDelimited(message, writer) {
+                                    return this.encode(message, writer).ldelim();
+                                };
+    
+                                /**
+                                 * Decodes a SentimentAnalysisResult message from the specified reader or buffer.
+                                 * @function decode
+                                 * @memberof google.cloud.dialogflow.cx.v3.WebhookRequest.SentimentAnalysisResult
+                                 * @static
+                                 * @param {$protobuf.Reader|Uint8Array} reader Reader or buffer to decode from
+                                 * @param {number} [length] Message length if known beforehand
+                                 * @returns {google.cloud.dialogflow.cx.v3.WebhookRequest.SentimentAnalysisResult} SentimentAnalysisResult
+                                 * @throws {Error} If the payload is not a reader or valid buffer
+                                 * @throws {$protobuf.util.ProtocolError} If required fields are missing
+                                 */
+                                SentimentAnalysisResult.decode = function decode(reader, length) {
+                                    if (!(reader instanceof $Reader))
+                                        reader = $Reader.create(reader);
+                                    var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.cloud.dialogflow.cx.v3.WebhookRequest.SentimentAnalysisResult();
+                                    while (reader.pos < end) {
+                                        var tag = reader.uint32();
+                                        switch (tag >>> 3) {
+                                        case 1:
+                                            message.score = reader.float();
+                                            break;
+                                        case 2:
+                                            message.magnitude = reader.float();
+                                            break;
+                                        default:
+                                            reader.skipType(tag & 7);
+                                            break;
+                                        }
+                                    }
+                                    return message;
+                                };
+    
+                                /**
+                                 * Decodes a SentimentAnalysisResult message from the specified reader or buffer, length delimited.
+                                 * @function decodeDelimited
+                                 * @memberof google.cloud.dialogflow.cx.v3.WebhookRequest.SentimentAnalysisResult
+                                 * @static
+                                 * @param {$protobuf.Reader|Uint8Array} reader Reader or buffer to decode from
+                                 * @returns {google.cloud.dialogflow.cx.v3.WebhookRequest.SentimentAnalysisResult} SentimentAnalysisResult
+                                 * @throws {Error} If the payload is not a reader or valid buffer
+                                 * @throws {$protobuf.util.ProtocolError} If required fields are missing
+                                 */
+                                SentimentAnalysisResult.decodeDelimited = function decodeDelimited(reader) {
+                                    if (!(reader instanceof $Reader))
+                                        reader = new $Reader(reader);
+                                    return this.decode(reader, reader.uint32());
+                                };
+    
+                                /**
+                                 * Verifies a SentimentAnalysisResult message.
+                                 * @function verify
+                                 * @memberof google.cloud.dialogflow.cx.v3.WebhookRequest.SentimentAnalysisResult
+                                 * @static
+                                 * @param {Object.<string,*>} message Plain object to verify
+                                 * @returns {string|null} `null` if valid, otherwise the reason why it is not
+                                 */
+                                SentimentAnalysisResult.verify = function verify(message) {
+                                    if (typeof message !== "object" || message === null)
+                                        return "object expected";
+                                    if (message.score != null && message.hasOwnProperty("score"))
+                                        if (typeof message.score !== "number")
+                                            return "score: number expected";
+                                    if (message.magnitude != null && message.hasOwnProperty("magnitude"))
+                                        if (typeof message.magnitude !== "number")
+                                            return "magnitude: number expected";
+                                    return null;
+                                };
+    
+                                /**
+                                 * Creates a SentimentAnalysisResult message from a plain object. Also converts values to their respective internal types.
+                                 * @function fromObject
+                                 * @memberof google.cloud.dialogflow.cx.v3.WebhookRequest.SentimentAnalysisResult
+                                 * @static
+                                 * @param {Object.<string,*>} object Plain object
+                                 * @returns {google.cloud.dialogflow.cx.v3.WebhookRequest.SentimentAnalysisResult} SentimentAnalysisResult
+                                 */
+                                SentimentAnalysisResult.fromObject = function fromObject(object) {
+                                    if (object instanceof $root.google.cloud.dialogflow.cx.v3.WebhookRequest.SentimentAnalysisResult)
+                                        return object;
+                                    var message = new $root.google.cloud.dialogflow.cx.v3.WebhookRequest.SentimentAnalysisResult();
+                                    if (object.score != null)
+                                        message.score = Number(object.score);
+                                    if (object.magnitude != null)
+                                        message.magnitude = Number(object.magnitude);
+                                    return message;
+                                };
+    
+                                /**
+                                 * Creates a plain object from a SentimentAnalysisResult message. Also converts values to other types if specified.
+                                 * @function toObject
+                                 * @memberof google.cloud.dialogflow.cx.v3.WebhookRequest.SentimentAnalysisResult
+                                 * @static
+                                 * @param {google.cloud.dialogflow.cx.v3.WebhookRequest.SentimentAnalysisResult} message SentimentAnalysisResult
+                                 * @param {$protobuf.IConversionOptions} [options] Conversion options
+                                 * @returns {Object.<string,*>} Plain object
+                                 */
+                                SentimentAnalysisResult.toObject = function toObject(message, options) {
+                                    if (!options)
+                                        options = {};
+                                    var object = {};
+                                    if (options.defaults) {
+                                        object.score = 0;
+                                        object.magnitude = 0;
+                                    }
+                                    if (message.score != null && message.hasOwnProperty("score"))
+                                        object.score = options.json && !isFinite(message.score) ? String(message.score) : message.score;
+                                    if (message.magnitude != null && message.hasOwnProperty("magnitude"))
+                                        object.magnitude = options.json && !isFinite(message.magnitude) ? String(message.magnitude) : message.magnitude;
+                                    return object;
+                                };
+    
+                                /**
+                                 * Converts this SentimentAnalysisResult to JSON.
+                                 * @function toJSON
+                                 * @memberof google.cloud.dialogflow.cx.v3.WebhookRequest.SentimentAnalysisResult
+                                 * @instance
+                                 * @returns {Object.<string,*>} JSON object
+                                 */
+                                SentimentAnalysisResult.prototype.toJSON = function toJSON() {
+                                    return this.constructor.toObject(this, $protobuf.util.toJSONOptions);
+                                };
+    
+                                return SentimentAnalysisResult;
+                            })();
+    
                             return WebhookRequest;
                         })();
     
@@ -72756,24 +73739,6 @@
                             return SynthesizeSpeechConfig;
                         })();
     
-                        /**
-                         * SsmlVoiceGender enum.
-                         * @name google.cloud.dialogflow.cx.v3beta1.SsmlVoiceGender
-                         * @enum {number}
-                         * @property {number} SSML_VOICE_GENDER_UNSPECIFIED=0 SSML_VOICE_GENDER_UNSPECIFIED value
-                         * @property {number} SSML_VOICE_GENDER_MALE=1 SSML_VOICE_GENDER_MALE value
-                         * @property {number} SSML_VOICE_GENDER_FEMALE=2 SSML_VOICE_GENDER_FEMALE value
-                         * @property {number} SSML_VOICE_GENDER_NEUTRAL=3 SSML_VOICE_GENDER_NEUTRAL value
-                         */
-                        v3beta1.SsmlVoiceGender = (function() {
-                            var valuesById = {}, values = Object.create(valuesById);
-                            values[valuesById[0] = "SSML_VOICE_GENDER_UNSPECIFIED"] = 0;
-                            values[valuesById[1] = "SSML_VOICE_GENDER_MALE"] = 1;
-                            values[valuesById[2] = "SSML_VOICE_GENDER_FEMALE"] = 2;
-                            values[valuesById[3] = "SSML_VOICE_GENDER_NEUTRAL"] = 3;
-                            return values;
-                        })();
-    
                         v3beta1.OutputAudioConfig = (function() {
     
                             /**
@@ -73044,6 +74009,24 @@
                             return OutputAudioConfig;
                         })();
     
+                        /**
+                         * SsmlVoiceGender enum.
+                         * @name google.cloud.dialogflow.cx.v3beta1.SsmlVoiceGender
+                         * @enum {number}
+                         * @property {number} SSML_VOICE_GENDER_UNSPECIFIED=0 SSML_VOICE_GENDER_UNSPECIFIED value
+                         * @property {number} SSML_VOICE_GENDER_MALE=1 SSML_VOICE_GENDER_MALE value
+                         * @property {number} SSML_VOICE_GENDER_FEMALE=2 SSML_VOICE_GENDER_FEMALE value
+                         * @property {number} SSML_VOICE_GENDER_NEUTRAL=3 SSML_VOICE_GENDER_NEUTRAL value
+                         */
+                        v3beta1.SsmlVoiceGender = (function() {
+                            var valuesById = {}, values = Object.create(valuesById);
+                            values[valuesById[0] = "SSML_VOICE_GENDER_UNSPECIFIED"] = 0;
+                            values[valuesById[1] = "SSML_VOICE_GENDER_MALE"] = 1;
+                            values[valuesById[2] = "SSML_VOICE_GENDER_FEMALE"] = 2;
+                            values[valuesById[3] = "SSML_VOICE_GENDER_NEUTRAL"] = 3;
+                            return values;
+                        })();
+    
                         /**
                          * OutputAudioEncoding enum.
                          * @name google.cloud.dialogflow.cx.v3beta1.OutputAudioEncoding
@@ -86846,6 +87829,7 @@
                              * @property {Array.<google.cloud.dialogflow.cx.v3beta1.ISessionEntityType>|null} [sessionEntityTypes] QueryParameters sessionEntityTypes
                              * @property {google.protobuf.IStruct|null} [payload] QueryParameters payload
                              * @property {google.protobuf.IStruct|null} [parameters] QueryParameters parameters
+                             * @property {boolean|null} [disableWebhook] QueryParameters disableWebhook
                              * @property {boolean|null} [analyzeQueryTextSentiment] QueryParameters analyzeQueryTextSentiment
                              * @property {Object.<string,string>|null} [webhookHeaders] QueryParameters webhookHeaders
                              */
@@ -86907,6 +87891,14 @@
                              */
                             QueryParameters.prototype.parameters = null;
     
+                            /**
+                             * QueryParameters disableWebhook.
+                             * @member {boolean} disableWebhook
+                             * @memberof google.cloud.dialogflow.cx.v3beta1.QueryParameters
+                             * @instance
+                             */
+                            QueryParameters.prototype.disableWebhook = false;
+    
                             /**
                              * QueryParameters analyzeQueryTextSentiment.
                              * @member {boolean} analyzeQueryTextSentiment
@@ -86958,6 +87950,8 @@
                                     $root.google.protobuf.Struct.encode(message.payload, writer.uint32(/* id 4, wireType 2 =*/34).fork()).ldelim();
                                 if (message.parameters != null && Object.hasOwnProperty.call(message, "parameters"))
                                     $root.google.protobuf.Struct.encode(message.parameters, writer.uint32(/* id 5, wireType 2 =*/42).fork()).ldelim();
+                                if (message.disableWebhook != null && Object.hasOwnProperty.call(message, "disableWebhook"))
+                                    writer.uint32(/* id 7, wireType 0 =*/56).bool(message.disableWebhook);
                                 if (message.analyzeQueryTextSentiment != null && Object.hasOwnProperty.call(message, "analyzeQueryTextSentiment"))
                                     writer.uint32(/* id 8, wireType 0 =*/64).bool(message.analyzeQueryTextSentiment);
                                 if (message.webhookHeaders != null && Object.hasOwnProperty.call(message, "webhookHeaders"))
@@ -87014,6 +88008,9 @@
                                     case 5:
                                         message.parameters = $root.google.protobuf.Struct.decode(reader, reader.uint32());
                                         break;
+                                    case 7:
+                                        message.disableWebhook = reader.bool();
+                                        break;
                                     case 8:
                                         message.analyzeQueryTextSentiment = reader.bool();
                                         break;
@@ -87101,6 +88098,9 @@
                                     if (error)
                                         return "parameters." + error;
                                 }
+                                if (message.disableWebhook != null && message.hasOwnProperty("disableWebhook"))
+                                    if (typeof message.disableWebhook !== "boolean")
+                                        return "disableWebhook: boolean expected";
                                 if (message.analyzeQueryTextSentiment != null && message.hasOwnProperty("analyzeQueryTextSentiment"))
                                     if (typeof message.analyzeQueryTextSentiment !== "boolean")
                                         return "analyzeQueryTextSentiment: boolean expected";
@@ -87154,6 +88154,8 @@
                                         throw TypeError(".google.cloud.dialogflow.cx.v3beta1.QueryParameters.parameters: object expected");
                                     message.parameters = $root.google.protobuf.Struct.fromObject(object.parameters);
                                 }
+                                if (object.disableWebhook != null)
+                                    message.disableWebhook = Boolean(object.disableWebhook);
                                 if (object.analyzeQueryTextSentiment != null)
                                     message.analyzeQueryTextSentiment = Boolean(object.analyzeQueryTextSentiment);
                                 if (object.webhookHeaders) {
@@ -87188,6 +88190,7 @@
                                     object.geoLocation = null;
                                     object.payload = null;
                                     object.parameters = null;
+                                    object.disableWebhook = false;
                                     object.analyzeQueryTextSentiment = false;
                                 }
                                 if (message.timeZone != null && message.hasOwnProperty("timeZone"))
@@ -87203,6 +88206,8 @@
                                     object.payload = $root.google.protobuf.Struct.toObject(message.payload, options);
                                 if (message.parameters != null && message.hasOwnProperty("parameters"))
                                     object.parameters = $root.google.protobuf.Struct.toObject(message.parameters, options);
+                                if (message.disableWebhook != null && message.hasOwnProperty("disableWebhook"))
+                                    object.disableWebhook = message.disableWebhook;
                                 if (message.analyzeQueryTextSentiment != null && message.hasOwnProperty("analyzeQueryTextSentiment"))
                                     object.analyzeQueryTextSentiment = message.analyzeQueryTextSentiment;
                                 var keys2;
@@ -95955,6 +96960,711 @@
                             return TransitionCoverage;
                         })();
     
+                        v3beta1.TransitionRouteGroupCoverage = (function() {
+    
+                            /**
+                             * Properties of a TransitionRouteGroupCoverage.
+                             * @memberof google.cloud.dialogflow.cx.v3beta1
+                             * @interface ITransitionRouteGroupCoverage
+                             * @property {Array.<google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.ICoverage>|null} [coverages] TransitionRouteGroupCoverage coverages
+                             * @property {number|null} [coverageScore] TransitionRouteGroupCoverage coverageScore
+                             */
+    
+                            /**
+                             * Constructs a new TransitionRouteGroupCoverage.
+                             * @memberof google.cloud.dialogflow.cx.v3beta1
+                             * @classdesc Represents a TransitionRouteGroupCoverage.
+                             * @implements ITransitionRouteGroupCoverage
+                             * @constructor
+                             * @param {google.cloud.dialogflow.cx.v3beta1.ITransitionRouteGroupCoverage=} [properties] Properties to set
+                             */
+                            function TransitionRouteGroupCoverage(properties) {
+                                this.coverages = [];
+                                if (properties)
+                                    for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
+                                        if (properties[keys[i]] != null)
+                                            this[keys[i]] = properties[keys[i]];
+                            }
+    
+                            /**
+                             * TransitionRouteGroupCoverage coverages.
+                             * @member {Array.<google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.ICoverage>} coverages
+                             * @memberof google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage
+                             * @instance
+                             */
+                            TransitionRouteGroupCoverage.prototype.coverages = $util.emptyArray;
+    
+                            /**
+                             * TransitionRouteGroupCoverage coverageScore.
+                             * @member {number} coverageScore
+                             * @memberof google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage
+                             * @instance
+                             */
+                            TransitionRouteGroupCoverage.prototype.coverageScore = 0;
+    
+                            /**
+                             * Creates a new TransitionRouteGroupCoverage instance using the specified properties.
+                             * @function create
+                             * @memberof google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage
+                             * @static
+                             * @param {google.cloud.dialogflow.cx.v3beta1.ITransitionRouteGroupCoverage=} [properties] Properties to set
+                             * @returns {google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage} TransitionRouteGroupCoverage instance
+                             */
+                            TransitionRouteGroupCoverage.create = function create(properties) {
+                                return new TransitionRouteGroupCoverage(properties);
+                            };
+    
+                            /**
+                             * Encodes the specified TransitionRouteGroupCoverage message. Does not implicitly {@link google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.verify|verify} messages.
+                             * @function encode
+                             * @memberof google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage
+                             * @static
+                             * @param {google.cloud.dialogflow.cx.v3beta1.ITransitionRouteGroupCoverage} message TransitionRouteGroupCoverage message or plain object to encode
+                             * @param {$protobuf.Writer} [writer] Writer to encode to
+                             * @returns {$protobuf.Writer} Writer
+                             */
+                            TransitionRouteGroupCoverage.encode = function encode(message, writer) {
+                                if (!writer)
+                                    writer = $Writer.create();
+                                if (message.coverages != null && message.coverages.length)
+                                    for (var i = 0; i < message.coverages.length; ++i)
+                                        $root.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.Coverage.encode(message.coverages[i], writer.uint32(/* id 1, wireType 2 =*/10).fork()).ldelim();
+                                if (message.coverageScore != null && Object.hasOwnProperty.call(message, "coverageScore"))
+                                    writer.uint32(/* id 2, wireType 5 =*/21).float(message.coverageScore);
+                                return writer;
+                            };
+    
+                            /**
+                             * Encodes the specified TransitionRouteGroupCoverage message, length delimited. Does not implicitly {@link google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.verify|verify} messages.
+                             * @function encodeDelimited
+                             * @memberof google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage
+                             * @static
+                             * @param {google.cloud.dialogflow.cx.v3beta1.ITransitionRouteGroupCoverage} message TransitionRouteGroupCoverage message or plain object to encode
+                             * @param {$protobuf.Writer} [writer] Writer to encode to
+                             * @returns {$protobuf.Writer} Writer
+                             */
+                            TransitionRouteGroupCoverage.encodeDelimited = function encodeDelimited(message, writer) {
+                                return this.encode(message, writer).ldelim();
+                            };
+    
+                            /**
+                             * Decodes a TransitionRouteGroupCoverage message from the specified reader or buffer.
+                             * @function decode
+                             * @memberof google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage
+                             * @static
+                             * @param {$protobuf.Reader|Uint8Array} reader Reader or buffer to decode from
+                             * @param {number} [length] Message length if known beforehand
+                             * @returns {google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage} TransitionRouteGroupCoverage
+                             * @throws {Error} If the payload is not a reader or valid buffer
+                             * @throws {$protobuf.util.ProtocolError} If required fields are missing
+                             */
+                            TransitionRouteGroupCoverage.decode = function decode(reader, length) {
+                                if (!(reader instanceof $Reader))
+                                    reader = $Reader.create(reader);
+                                var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage();
+                                while (reader.pos < end) {
+                                    var tag = reader.uint32();
+                                    switch (tag >>> 3) {
+                                    case 1:
+                                        if (!(message.coverages && message.coverages.length))
+                                            message.coverages = [];
+                                        message.coverages.push($root.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.Coverage.decode(reader, reader.uint32()));
+                                        break;
+                                    case 2:
+                                        message.coverageScore = reader.float();
+                                        break;
+                                    default:
+                                        reader.skipType(tag & 7);
+                                        break;
+                                    }
+                                }
+                                return message;
+                            };
+    
+                            /**
+                             * Decodes a TransitionRouteGroupCoverage message from the specified reader or buffer, length delimited.
+                             * @function decodeDelimited
+                             * @memberof google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage
+                             * @static
+                             * @param {$protobuf.Reader|Uint8Array} reader Reader or buffer to decode from
+                             * @returns {google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage} TransitionRouteGroupCoverage
+                             * @throws {Error} If the payload is not a reader or valid buffer
+                             * @throws {$protobuf.util.ProtocolError} If required fields are missing
+                             */
+                            TransitionRouteGroupCoverage.decodeDelimited = function decodeDelimited(reader) {
+                                if (!(reader instanceof $Reader))
+                                    reader = new $Reader(reader);
+                                return this.decode(reader, reader.uint32());
+                            };
+    
+                            /**
+                             * Verifies a TransitionRouteGroupCoverage message.
+                             * @function verify
+                             * @memberof google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage
+                             * @static
+                             * @param {Object.<string,*>} message Plain object to verify
+                             * @returns {string|null} `null` if valid, otherwise the reason why it is not
+                             */
+                            TransitionRouteGroupCoverage.verify = function verify(message) {
+                                if (typeof message !== "object" || message === null)
+                                    return "object expected";
+                                if (message.coverages != null && message.hasOwnProperty("coverages")) {
+                                    if (!Array.isArray(message.coverages))
+                                        return "coverages: array expected";
+                                    for (var i = 0; i < message.coverages.length; ++i) {
+                                        var error = $root.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.Coverage.verify(message.coverages[i]);
+                                        if (error)
+                                            return "coverages." + error;
+                                    }
+                                }
+                                if (message.coverageScore != null && message.hasOwnProperty("coverageScore"))
+                                    if (typeof message.coverageScore !== "number")
+                                        return "coverageScore: number expected";
+                                return null;
+                            };
+    
+                            /**
+                             * Creates a TransitionRouteGroupCoverage message from a plain object. Also converts values to their respective internal types.
+                             * @function fromObject
+                             * @memberof google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage
+                             * @static
+                             * @param {Object.<string,*>} object Plain object
+                             * @returns {google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage} TransitionRouteGroupCoverage
+                             */
+                            TransitionRouteGroupCoverage.fromObject = function fromObject(object) {
+                                if (object instanceof $root.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage)
+                                    return object;
+                                var message = new $root.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage();
+                                if (object.coverages) {
+                                    if (!Array.isArray(object.coverages))
+                                        throw TypeError(".google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.coverages: array expected");
+                                    message.coverages = [];
+                                    for (var i = 0; i < object.coverages.length; ++i) {
+                                        if (typeof object.coverages[i] !== "object")
+                                            throw TypeError(".google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.coverages: object expected");
+                                        message.coverages[i] = $root.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.Coverage.fromObject(object.coverages[i]);
+                                    }
+                                }
+                                if (object.coverageScore != null)
+                                    message.coverageScore = Number(object.coverageScore);
+                                return message;
+                            };
+    
+                            /**
+                             * Creates a plain object from a TransitionRouteGroupCoverage message. Also converts values to other types if specified.
+                             * @function toObject
+                             * @memberof google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage
+                             * @static
+                             * @param {google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage} message TransitionRouteGroupCoverage
+                             * @param {$protobuf.IConversionOptions} [options] Conversion options
+                             * @returns {Object.<string,*>} Plain object
+                             */
+                            TransitionRouteGroupCoverage.toObject = function toObject(message, options) {
+                                if (!options)
+                                    options = {};
+                                var object = {};
+                                if (options.arrays || options.defaults)
+                                    object.coverages = [];
+                                if (options.defaults)
+                                    object.coverageScore = 0;
+                                if (message.coverages && message.coverages.length) {
+                                    object.coverages = [];
+                                    for (var j = 0; j < message.coverages.length; ++j)
+                                        object.coverages[j] = $root.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.Coverage.toObject(message.coverages[j], options);
+                                }
+                                if (message.coverageScore != null && message.hasOwnProperty("coverageScore"))
+                                    object.coverageScore = options.json && !isFinite(message.coverageScore) ? String(message.coverageScore) : message.coverageScore;
+                                return object;
+                            };
+    
+                            /**
+                             * Converts this TransitionRouteGroupCoverage to JSON.
+                             * @function toJSON
+                             * @memberof google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage
+                             * @instance
+                             * @returns {Object.<string,*>} JSON object
+                             */
+                            TransitionRouteGroupCoverage.prototype.toJSON = function toJSON() {
+                                return this.constructor.toObject(this, $protobuf.util.toJSONOptions);
+                            };
+    
+                            TransitionRouteGroupCoverage.Coverage = (function() {
+    
+                                /**
+                                 * Properties of a Coverage.
+                                 * @memberof google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage
+                                 * @interface ICoverage
+                                 * @property {google.cloud.dialogflow.cx.v3beta1.ITransitionRouteGroup|null} [routeGroup] Coverage routeGroup
+                                 * @property {Array.<google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.Coverage.ITransition>|null} [transitions] Coverage transitions
+                                 * @property {number|null} [coverageScore] Coverage coverageScore
+                                 */
+    
+                                /**
+                                 * Constructs a new Coverage.
+                                 * @memberof google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage
+                                 * @classdesc Represents a Coverage.
+                                 * @implements ICoverage
+                                 * @constructor
+                                 * @param {google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.ICoverage=} [properties] Properties to set
+                                 */
+                                function Coverage(properties) {
+                                    this.transitions = [];
+                                    if (properties)
+                                        for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
+                                            if (properties[keys[i]] != null)
+                                                this[keys[i]] = properties[keys[i]];
+                                }
+    
+                                /**
+                                 * Coverage routeGroup.
+                                 * @member {google.cloud.dialogflow.cx.v3beta1.ITransitionRouteGroup|null|undefined} routeGroup
+                                 * @memberof google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.Coverage
+                                 * @instance
+                                 */
+                                Coverage.prototype.routeGroup = null;
+    
+                                /**
+                                 * Coverage transitions.
+                                 * @member {Array.<google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.Coverage.ITransition>} transitions
+                                 * @memberof google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.Coverage
+                                 * @instance
+                                 */
+                                Coverage.prototype.transitions = $util.emptyArray;
+    
+                                /**
+                                 * Coverage coverageScore.
+                                 * @member {number} coverageScore
+                                 * @memberof google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.Coverage
+                                 * @instance
+                                 */
+                                Coverage.prototype.coverageScore = 0;
+    
+                                /**
+                                 * Creates a new Coverage instance using the specified properties.
+                                 * @function create
+                                 * @memberof google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.Coverage
+                                 * @static
+                                 * @param {google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.ICoverage=} [properties] Properties to set
+                                 * @returns {google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.Coverage} Coverage instance
+                                 */
+                                Coverage.create = function create(properties) {
+                                    return new Coverage(properties);
+                                };
+    
+                                /**
+                                 * Encodes the specified Coverage message. Does not implicitly {@link google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.Coverage.verify|verify} messages.
+                                 * @function encode
+                                 * @memberof google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.Coverage
+                                 * @static
+                                 * @param {google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.ICoverage} message Coverage message or plain object to encode
+                                 * @param {$protobuf.Writer} [writer] Writer to encode to
+                                 * @returns {$protobuf.Writer} Writer
+                                 */
+                                Coverage.encode = function encode(message, writer) {
+                                    if (!writer)
+                                        writer = $Writer.create();
+                                    if (message.routeGroup != null && Object.hasOwnProperty.call(message, "routeGroup"))
+                                        $root.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup.encode(message.routeGroup, writer.uint32(/* id 1, wireType 2 =*/10).fork()).ldelim();
+                                    if (message.transitions != null && message.transitions.length)
+                                        for (var i = 0; i < message.transitions.length; ++i)
+                                            $root.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.Coverage.Transition.encode(message.transitions[i], writer.uint32(/* id 2, wireType 2 =*/18).fork()).ldelim();
+                                    if (message.coverageScore != null && Object.hasOwnProperty.call(message, "coverageScore"))
+                                        writer.uint32(/* id 3, wireType 5 =*/29).float(message.coverageScore);
+                                    return writer;
+                                };
+    
+                                /**
+                                 * Encodes the specified Coverage message, length delimited. Does not implicitly {@link google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.Coverage.verify|verify} messages.
+                                 * @function encodeDelimited
+                                 * @memberof google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.Coverage
+                                 * @static
+                                 * @param {google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.ICoverage} message Coverage message or plain object to encode
+                                 * @param {$protobuf.Writer} [writer] Writer to encode to
+                                 * @returns {$protobuf.Writer} Writer
+                                 */
+                                Coverage.encodeDelimited = function encodeDelimited(message, writer) {
+                                    return this.encode(message, writer).ldelim();
+                                };
+    
+                                /**
+                                 * Decodes a Coverage message from the specified reader or buffer.
+                                 * @function decode
+                                 * @memberof google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.Coverage
+                                 * @static
+                                 * @param {$protobuf.Reader|Uint8Array} reader Reader or buffer to decode from
+                                 * @param {number} [length] Message length if known beforehand
+                                 * @returns {google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.Coverage} Coverage
+                                 * @throws {Error} If the payload is not a reader or valid buffer
+                                 * @throws {$protobuf.util.ProtocolError} If required fields are missing
+                                 */
+                                Coverage.decode = function decode(reader, length) {
+                                    if (!(reader instanceof $Reader))
+                                        reader = $Reader.create(reader);
+                                    var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.Coverage();
+                                    while (reader.pos < end) {
+                                        var tag = reader.uint32();
+                                        switch (tag >>> 3) {
+                                        case 1:
+                                            message.routeGroup = $root.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup.decode(reader, reader.uint32());
+                                            break;
+                                        case 2:
+                                            if (!(message.transitions && message.transitions.length))
+                                                message.transitions = [];
+                                            message.transitions.push($root.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.Coverage.Transition.decode(reader, reader.uint32()));
+                                            break;
+                                        case 3:
+                                            message.coverageScore = reader.float();
+                                            break;
+                                        default:
+                                            reader.skipType(tag & 7);
+                                            break;
+                                        }
+                                    }
+                                    return message;
+                                };
+    
+                                /**
+                                 * Decodes a Coverage message from the specified reader or buffer, length delimited.
+                                 * @function decodeDelimited
+                                 * @memberof google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.Coverage
+                                 * @static
+                                 * @param {$protobuf.Reader|Uint8Array} reader Reader or buffer to decode from
+                                 * @returns {google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.Coverage} Coverage
+                                 * @throws {Error} If the payload is not a reader or valid buffer
+                                 * @throws {$protobuf.util.ProtocolError} If required fields are missing
+                                 */
+                                Coverage.decodeDelimited = function decodeDelimited(reader) {
+                                    if (!(reader instanceof $Reader))
+                                        reader = new $Reader(reader);
+                                    return this.decode(reader, reader.uint32());
+                                };
+    
+                                /**
+                                 * Verifies a Coverage message.
+                                 * @function verify
+                                 * @memberof google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.Coverage
+                                 * @static
+                                 * @param {Object.<string,*>} message Plain object to verify
+                                 * @returns {string|null} `null` if valid, otherwise the reason why it is not
+                                 */
+                                Coverage.verify = function verify(message) {
+                                    if (typeof message !== "object" || message === null)
+                                        return "object expected";
+                                    if (message.routeGroup != null && message.hasOwnProperty("routeGroup")) {
+                                        var error = $root.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup.verify(message.routeGroup);
+                                        if (error)
+                                            return "routeGroup." + error;
+                                    }
+                                    if (message.transitions != null && message.hasOwnProperty("transitions")) {
+                                        if (!Array.isArray(message.transitions))
+                                            return "transitions: array expected";
+                                        for (var i = 0; i < message.transitions.length; ++i) {
+                                            var error = $root.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.Coverage.Transition.verify(message.transitions[i]);
+                                            if (error)
+                                                return "transitions." + error;
+                                        }
+                                    }
+                                    if (message.coverageScore != null && message.hasOwnProperty("coverageScore"))
+                                        if (typeof message.coverageScore !== "number")
+                                            return "coverageScore: number expected";
+                                    return null;
+                                };
+    
+                                /**
+                                 * Creates a Coverage message from a plain object. Also converts values to their respective internal types.
+                                 * @function fromObject
+                                 * @memberof google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.Coverage
+                                 * @static
+                                 * @param {Object.<string,*>} object Plain object
+                                 * @returns {google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.Coverage} Coverage
+                                 */
+                                Coverage.fromObject = function fromObject(object) {
+                                    if (object instanceof $root.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.Coverage)
+                                        return object;
+                                    var message = new $root.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.Coverage();
+                                    if (object.routeGroup != null) {
+                                        if (typeof object.routeGroup !== "object")
+                                            throw TypeError(".google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.Coverage.routeGroup: object expected");
+                                        message.routeGroup = $root.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup.fromObject(object.routeGroup);
+                                    }
+                                    if (object.transitions) {
+                                        if (!Array.isArray(object.transitions))
+                                            throw TypeError(".google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.Coverage.transitions: array expected");
+                                        message.transitions = [];
+                                        for (var i = 0; i < object.transitions.length; ++i) {
+                                            if (typeof object.transitions[i] !== "object")
+                                                throw TypeError(".google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.Coverage.transitions: object expected");
+                                            message.transitions[i] = $root.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.Coverage.Transition.fromObject(object.transitions[i]);
+                                        }
+                                    }
+                                    if (object.coverageScore != null)
+                                        message.coverageScore = Number(object.coverageScore);
+                                    return message;
+                                };
+    
+                                /**
+                                 * Creates a plain object from a Coverage message. Also converts values to other types if specified.
+                                 * @function toObject
+                                 * @memberof google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.Coverage
+                                 * @static
+                                 * @param {google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.Coverage} message Coverage
+                                 * @param {$protobuf.IConversionOptions} [options] Conversion options
+                                 * @returns {Object.<string,*>} Plain object
+                                 */
+                                Coverage.toObject = function toObject(message, options) {
+                                    if (!options)
+                                        options = {};
+                                    var object = {};
+                                    if (options.arrays || options.defaults)
+                                        object.transitions = [];
+                                    if (options.defaults) {
+                                        object.routeGroup = null;
+                                        object.coverageScore = 0;
+                                    }
+                                    if (message.routeGroup != null && message.hasOwnProperty("routeGroup"))
+                                        object.routeGroup = $root.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup.toObject(message.routeGroup, options);
+                                    if (message.transitions && message.transitions.length) {
+                                        object.transitions = [];
+                                        for (var j = 0; j < message.transitions.length; ++j)
+                                            object.transitions[j] = $root.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.Coverage.Transition.toObject(message.transitions[j], options);
+                                    }
+                                    if (message.coverageScore != null && message.hasOwnProperty("coverageScore"))
+                                        object.coverageScore = options.json && !isFinite(message.coverageScore) ? String(message.coverageScore) : message.coverageScore;
+                                    return object;
+                                };
+    
+                                /**
+                                 * Converts this Coverage to JSON.
+                                 * @function toJSON
+                                 * @memberof google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.Coverage
+                                 * @instance
+                                 * @returns {Object.<string,*>} JSON object
+                                 */
+                                Coverage.prototype.toJSON = function toJSON() {
+                                    return this.constructor.toObject(this, $protobuf.util.toJSONOptions);
+                                };
+    
+                                Coverage.Transition = (function() {
+    
+                                    /**
+                                     * Properties of a Transition.
+                                     * @memberof google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.Coverage
+                                     * @interface ITransition
+                                     * @property {google.cloud.dialogflow.cx.v3beta1.ITransitionRoute|null} [transitionRoute] Transition transitionRoute
+                                     * @property {boolean|null} [covered] Transition covered
+                                     */
+    
+                                    /**
+                                     * Constructs a new Transition.
+                                     * @memberof google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.Coverage
+                                     * @classdesc Represents a Transition.
+                                     * @implements ITransition
+                                     * @constructor
+                                     * @param {google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.Coverage.ITransition=} [properties] Properties to set
+                                     */
+                                    function Transition(properties) {
+                                        if (properties)
+                                            for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
+                                                if (properties[keys[i]] != null)
+                                                    this[keys[i]] = properties[keys[i]];
+                                    }
+    
+                                    /**
+                                     * Transition transitionRoute.
+                                     * @member {google.cloud.dialogflow.cx.v3beta1.ITransitionRoute|null|undefined} transitionRoute
+                                     * @memberof google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.Coverage.Transition
+                                     * @instance
+                                     */
+                                    Transition.prototype.transitionRoute = null;
+    
+                                    /**
+                                     * Transition covered.
+                                     * @member {boolean} covered
+                                     * @memberof google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.Coverage.Transition
+                                     * @instance
+                                     */
+                                    Transition.prototype.covered = false;
+    
+                                    /**
+                                     * Creates a new Transition instance using the specified properties.
+                                     * @function create
+                                     * @memberof google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.Coverage.Transition
+                                     * @static
+                                     * @param {google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.Coverage.ITransition=} [properties] Properties to set
+                                     * @returns {google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.Coverage.Transition} Transition instance
+                                     */
+                                    Transition.create = function create(properties) {
+                                        return new Transition(properties);
+                                    };
+    
+                                    /**
+                                     * Encodes the specified Transition message. Does not implicitly {@link google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.Coverage.Transition.verify|verify} messages.
+                                     * @function encode
+                                     * @memberof google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.Coverage.Transition
+                                     * @static
+                                     * @param {google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.Coverage.ITransition} message Transition message or plain object to encode
+                                     * @param {$protobuf.Writer} [writer] Writer to encode to
+                                     * @returns {$protobuf.Writer} Writer
+                                     */
+                                    Transition.encode = function encode(message, writer) {
+                                        if (!writer)
+                                            writer = $Writer.create();
+                                        if (message.transitionRoute != null && Object.hasOwnProperty.call(message, "transitionRoute"))
+                                            $root.google.cloud.dialogflow.cx.v3beta1.TransitionRoute.encode(message.transitionRoute, writer.uint32(/* id 1, wireType 2 =*/10).fork()).ldelim();
+                                        if (message.covered != null && Object.hasOwnProperty.call(message, "covered"))
+                                            writer.uint32(/* id 2, wireType 0 =*/16).bool(message.covered);
+                                        return writer;
+                                    };
+    
+                                    /**
+                                     * Encodes the specified Transition message, length delimited. Does not implicitly {@link google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.Coverage.Transition.verify|verify} messages.
+                                     * @function encodeDelimited
+                                     * @memberof google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.Coverage.Transition
+                                     * @static
+                                     * @param {google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.Coverage.ITransition} message Transition message or plain object to encode
+                                     * @param {$protobuf.Writer} [writer] Writer to encode to
+                                     * @returns {$protobuf.Writer} Writer
+                                     */
+                                    Transition.encodeDelimited = function encodeDelimited(message, writer) {
+                                        return this.encode(message, writer).ldelim();
+                                    };
+    
+                                    /**
+                                     * Decodes a Transition message from the specified reader or buffer.
+                                     * @function decode
+                                     * @memberof google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.Coverage.Transition
+                                     * @static
+                                     * @param {$protobuf.Reader|Uint8Array} reader Reader or buffer to decode from
+                                     * @param {number} [length] Message length if known beforehand
+                                     * @returns {google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.Coverage.Transition} Transition
+                                     * @throws {Error} If the payload is not a reader or valid buffer
+                                     * @throws {$protobuf.util.ProtocolError} If required fields are missing
+                                     */
+                                    Transition.decode = function decode(reader, length) {
+                                        if (!(reader instanceof $Reader))
+                                            reader = $Reader.create(reader);
+                                        var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.Coverage.Transition();
+                                        while (reader.pos < end) {
+                                            var tag = reader.uint32();
+                                            switch (tag >>> 3) {
+                                            case 1:
+                                                message.transitionRoute = $root.google.cloud.dialogflow.cx.v3beta1.TransitionRoute.decode(reader, reader.uint32());
+                                                break;
+                                            case 2:
+                                                message.covered = reader.bool();
+                                                break;
+                                            default:
+                                                reader.skipType(tag & 7);
+                                                break;
+                                            }
+                                        }
+                                        return message;
+                                    };
+    
+                                    /**
+                                     * Decodes a Transition message from the specified reader or buffer, length delimited.
+                                     * @function decodeDelimited
+                                     * @memberof google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.Coverage.Transition
+                                     * @static
+                                     * @param {$protobuf.Reader|Uint8Array} reader Reader or buffer to decode from
+                                     * @returns {google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.Coverage.Transition} Transition
+                                     * @throws {Error} If the payload is not a reader or valid buffer
+                                     * @throws {$protobuf.util.ProtocolError} If required fields are missing
+                                     */
+                                    Transition.decodeDelimited = function decodeDelimited(reader) {
+                                        if (!(reader instanceof $Reader))
+                                            reader = new $Reader(reader);
+                                        return this.decode(reader, reader.uint32());
+                                    };
+    
+                                    /**
+                                     * Verifies a Transition message.
+                                     * @function verify
+                                     * @memberof google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.Coverage.Transition
+                                     * @static
+                                     * @param {Object.<string,*>} message Plain object to verify
+                                     * @returns {string|null} `null` if valid, otherwise the reason why it is not
+                                     */
+                                    Transition.verify = function verify(message) {
+                                        if (typeof message !== "object" || message === null)
+                                            return "object expected";
+                                        if (message.transitionRoute != null && message.hasOwnProperty("transitionRoute")) {
+                                            var error = $root.google.cloud.dialogflow.cx.v3beta1.TransitionRoute.verify(message.transitionRoute);
+                                            if (error)
+                                                return "transitionRoute." + error;
+                                        }
+                                        if (message.covered != null && message.hasOwnProperty("covered"))
+                                            if (typeof message.covered !== "boolean")
+                                                return "covered: boolean expected";
+                                        return null;
+                                    };
+    
+                                    /**
+                                     * Creates a Transition message from a plain object. Also converts values to their respective internal types.
+                                     * @function fromObject
+                                     * @memberof google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.Coverage.Transition
+                                     * @static
+                                     * @param {Object.<string,*>} object Plain object
+                                     * @returns {google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.Coverage.Transition} Transition
+                                     */
+                                    Transition.fromObject = function fromObject(object) {
+                                        if (object instanceof $root.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.Coverage.Transition)
+                                            return object;
+                                        var message = new $root.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.Coverage.Transition();
+                                        if (object.transitionRoute != null) {
+                                            if (typeof object.transitionRoute !== "object")
+                                                throw TypeError(".google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.Coverage.Transition.transitionRoute: object expected");
+                                            message.transitionRoute = $root.google.cloud.dialogflow.cx.v3beta1.TransitionRoute.fromObject(object.transitionRoute);
+                                        }
+                                        if (object.covered != null)
+                                            message.covered = Boolean(object.covered);
+                                        return message;
+                                    };
+    
+                                    /**
+                                     * Creates a plain object from a Transition message. Also converts values to other types if specified.
+                                     * @function toObject
+                                     * @memberof google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.Coverage.Transition
+                                     * @static
+                                     * @param {google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.Coverage.Transition} message Transition
+                                     * @param {$protobuf.IConversionOptions} [options] Conversion options
+                                     * @returns {Object.<string,*>} Plain object
+                                     */
+                                    Transition.toObject = function toObject(message, options) {
+                                        if (!options)
+                                            options = {};
+                                        var object = {};
+                                        if (options.defaults) {
+                                            object.transitionRoute = null;
+                                            object.covered = false;
+                                        }
+                                        if (message.transitionRoute != null && message.hasOwnProperty("transitionRoute"))
+                                            object.transitionRoute = $root.google.cloud.dialogflow.cx.v3beta1.TransitionRoute.toObject(message.transitionRoute, options);
+                                        if (message.covered != null && message.hasOwnProperty("covered"))
+                                            object.covered = message.covered;
+                                        return object;
+                                    };
+    
+                                    /**
+                                     * Converts this Transition to JSON.
+                                     * @function toJSON
+                                     * @memberof google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.Coverage.Transition
+                                     * @instance
+                                     * @returns {Object.<string,*>} JSON object
+                                     */
+                                    Transition.prototype.toJSON = function toJSON() {
+                                        return this.constructor.toObject(this, $protobuf.util.toJSONOptions);
+                                    };
+    
+                                    return Transition;
+                                })();
+    
+                                return Coverage;
+                            })();
+    
+                            return TransitionRouteGroupCoverage;
+                        })();
+    
                         v3beta1.IntentCoverage = (function() {
     
                             /**
@@ -96550,6 +98260,7 @@
                                     case 0:
                                     case 1:
                                     case 2:
+                                    case 3:
                                         break;
                                     }
                                 return null;
@@ -96582,6 +98293,10 @@
                                 case 2:
                                     message.type = 2;
                                     break;
+                                case "TRANSITION_ROUTE_GROUP":
+                                case 3:
+                                    message.type = 3;
+                                    break;
                                 }
                                 return message;
                             };
@@ -96628,12 +98343,14 @@
                              * @property {number} COVERAGE_TYPE_UNSPECIFIED=0 COVERAGE_TYPE_UNSPECIFIED value
                              * @property {number} INTENT=1 INTENT value
                              * @property {number} PAGE_TRANSITION=2 PAGE_TRANSITION value
+                             * @property {number} TRANSITION_ROUTE_GROUP=3 TRANSITION_ROUTE_GROUP value
                              */
                             CalculateCoverageRequest.CoverageType = (function() {
                                 var valuesById = {}, values = Object.create(valuesById);
                                 values[valuesById[0] = "COVERAGE_TYPE_UNSPECIFIED"] = 0;
                                 values[valuesById[1] = "INTENT"] = 1;
                                 values[valuesById[2] = "PAGE_TRANSITION"] = 2;
+                                values[valuesById[3] = "TRANSITION_ROUTE_GROUP"] = 3;
                                 return values;
                             })();
     
@@ -96649,6 +98366,7 @@
                              * @property {string|null} [agent] CalculateCoverageResponse agent
                              * @property {google.cloud.dialogflow.cx.v3beta1.IIntentCoverage|null} [intentCoverage] CalculateCoverageResponse intentCoverage
                              * @property {google.cloud.dialogflow.cx.v3beta1.ITransitionCoverage|null} [transitionCoverage] CalculateCoverageResponse transitionCoverage
+                             * @property {google.cloud.dialogflow.cx.v3beta1.ITransitionRouteGroupCoverage|null} [routeGroupCoverage] CalculateCoverageResponse routeGroupCoverage
                              */
     
                             /**
@@ -96690,17 +98408,25 @@
                              */
                             CalculateCoverageResponse.prototype.transitionCoverage = null;
     
+                            /**
+                             * CalculateCoverageResponse routeGroupCoverage.
+                             * @member {google.cloud.dialogflow.cx.v3beta1.ITransitionRouteGroupCoverage|null|undefined} routeGroupCoverage
+                             * @memberof google.cloud.dialogflow.cx.v3beta1.CalculateCoverageResponse
+                             * @instance
+                             */
+                            CalculateCoverageResponse.prototype.routeGroupCoverage = null;
+    
                             // OneOf field names bound to virtual getters and setters
                             var $oneOfFields;
     
                             /**
                              * CalculateCoverageResponse coverageType.
-                             * @member {"intentCoverage"|"transitionCoverage"|undefined} coverageType
+                             * @member {"intentCoverage"|"transitionCoverage"|"routeGroupCoverage"|undefined} coverageType
                              * @memberof google.cloud.dialogflow.cx.v3beta1.CalculateCoverageResponse
                              * @instance
                              */
                             Object.defineProperty(CalculateCoverageResponse.prototype, "coverageType", {
-                                get: $util.oneOfGetter($oneOfFields = ["intentCoverage", "transitionCoverage"]),
+                                get: $util.oneOfGetter($oneOfFields = ["intentCoverage", "transitionCoverage", "routeGroupCoverage"]),
                                 set: $util.oneOfSetter($oneOfFields)
                             });
     
@@ -96734,6 +98460,8 @@
                                     $root.google.cloud.dialogflow.cx.v3beta1.TransitionCoverage.encode(message.transitionCoverage, writer.uint32(/* id 4, wireType 2 =*/34).fork()).ldelim();
                                 if (message.agent != null && Object.hasOwnProperty.call(message, "agent"))
                                     writer.uint32(/* id 5, wireType 2 =*/42).string(message.agent);
+                                if (message.routeGroupCoverage != null && Object.hasOwnProperty.call(message, "routeGroupCoverage"))
+                                    $root.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.encode(message.routeGroupCoverage, writer.uint32(/* id 6, wireType 2 =*/50).fork()).ldelim();
                                 return writer;
                             };
     
@@ -96777,6 +98505,9 @@
                                     case 4:
                                         message.transitionCoverage = $root.google.cloud.dialogflow.cx.v3beta1.TransitionCoverage.decode(reader, reader.uint32());
                                         break;
+                                    case 6:
+                                        message.routeGroupCoverage = $root.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.decode(reader, reader.uint32());
+                                        break;
                                     default:
                                         reader.skipType(tag & 7);
                                         break;
@@ -96834,6 +98565,16 @@
                                             return "transitionCoverage." + error;
                                     }
                                 }
+                                if (message.routeGroupCoverage != null && message.hasOwnProperty("routeGroupCoverage")) {
+                                    if (properties.coverageType === 1)
+                                        return "coverageType: multiple values";
+                                    properties.coverageType = 1;
+                                    {
+                                        var error = $root.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.verify(message.routeGroupCoverage);
+                                        if (error)
+                                            return "routeGroupCoverage." + error;
+                                    }
+                                }
                                 return null;
                             };
     
@@ -96861,6 +98602,11 @@
                                         throw TypeError(".google.cloud.dialogflow.cx.v3beta1.CalculateCoverageResponse.transitionCoverage: object expected");
                                     message.transitionCoverage = $root.google.cloud.dialogflow.cx.v3beta1.TransitionCoverage.fromObject(object.transitionCoverage);
                                 }
+                                if (object.routeGroupCoverage != null) {
+                                    if (typeof object.routeGroupCoverage !== "object")
+                                        throw TypeError(".google.cloud.dialogflow.cx.v3beta1.CalculateCoverageResponse.routeGroupCoverage: object expected");
+                                    message.routeGroupCoverage = $root.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.fromObject(object.routeGroupCoverage);
+                                }
                                 return message;
                             };
     
@@ -96891,6 +98637,11 @@
                                 }
                                 if (message.agent != null && message.hasOwnProperty("agent"))
                                     object.agent = message.agent;
+                                if (message.routeGroupCoverage != null && message.hasOwnProperty("routeGroupCoverage")) {
+                                    object.routeGroupCoverage = $root.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupCoverage.toObject(message.routeGroupCoverage, options);
+                                    if (options.oneofs)
+                                        object.coverageType = "routeGroupCoverage";
+                                }
                                 return object;
                             };
     
diff --git a/packages/google-cloud-dialogflow-cx/protos/protos.json b/packages/google-cloud-dialogflow-cx/protos/protos.json
index 09bd9cc74ab..9375094f474 100644
--- a/packages/google-cloud-dialogflow-cx/protos/protos.json
+++ b/packages/google-cloud-dialogflow-cx/protos/protos.json
@@ -1529,6 +1529,9 @@
                                 }
                               }
                             },
+                            "EndInteraction": {
+                              "fields": {}
+                            },
                             "PlayAudio": {
                               "fields": {
                                 "audioUri": {
@@ -1547,9 +1550,6 @@
                                 }
                               }
                             },
-                            "EndInteraction": {
-                              "fields": {}
-                            },
                             "MixedAudio": {
                               "fields": {
                                 "segments": {
@@ -1772,14 +1772,6 @@
                             }
                           }
                         },
-                        "SsmlVoiceGender": {
-                          "values": {
-                            "SSML_VOICE_GENDER_UNSPECIFIED": 0,
-                            "SSML_VOICE_GENDER_MALE": 1,
-                            "SSML_VOICE_GENDER_FEMALE": 2,
-                            "SSML_VOICE_GENDER_NEUTRAL": 3
-                          }
-                        },
                         "OutputAudioConfig": {
                           "fields": {
                             "audioEncoding": {
@@ -1799,6 +1791,14 @@
                             }
                           }
                         },
+                        "SsmlVoiceGender": {
+                          "values": {
+                            "SSML_VOICE_GENDER_UNSPECIFIED": 0,
+                            "SSML_VOICE_GENDER_MALE": 1,
+                            "SSML_VOICE_GENDER_FEMALE": 2,
+                            "SSML_VOICE_GENDER_NEUTRAL": 3
+                          }
+                        },
                         "OutputAudioEncoding": {
                           "values": {
                             "OUTPUT_AUDIO_ENCODING_UNSPECIFIED": 0,
@@ -4480,7 +4480,7 @@
                               "requestType": "RunTestCaseRequest",
                               "responseType": "google.longrunning.Operation",
                               "options": {
-                                "(google.api.http).post": "/v3/projects/*/locations/*/agents/*/testCases:run",
+                                "(google.api.http).post": "/v3/{name=projects/*/locations/*/agents/*/testCases/*}:run",
                                 "(google.api.http).body": "*",
                                 "(google.longrunning.operation_info).response_type": "RunTestCaseResponse",
                                 "(google.longrunning.operation_info).metadata_type": "RunTestCaseMetadata"
@@ -4488,7 +4488,7 @@
                               "parsedOptions": [
                                 {
                                   "(google.api.http)": {
-                                    "post": "/v3/projects/*/locations/*/agents/*/testCases:run",
+                                    "post": "/v3/{name=projects/*/locations/*/agents/*/testCases/*}:run",
                                     "body": "*"
                                   }
                                 },
@@ -4866,6 +4866,52 @@
                             }
                           }
                         },
+                        "TransitionRouteGroupCoverage": {
+                          "fields": {
+                            "coverages": {
+                              "rule": "repeated",
+                              "type": "Coverage",
+                              "id": 1
+                            },
+                            "coverageScore": {
+                              "type": "float",
+                              "id": 2
+                            }
+                          },
+                          "nested": {
+                            "Coverage": {
+                              "fields": {
+                                "routeGroup": {
+                                  "type": "TransitionRouteGroup",
+                                  "id": 1
+                                },
+                                "transitions": {
+                                  "rule": "repeated",
+                                  "type": "Transition",
+                                  "id": 2
+                                },
+                                "coverageScore": {
+                                  "type": "float",
+                                  "id": 3
+                                }
+                              },
+                              "nested": {
+                                "Transition": {
+                                  "fields": {
+                                    "transitionRoute": {
+                                      "type": "TransitionRoute",
+                                      "id": 1
+                                    },
+                                    "covered": {
+                                      "type": "bool",
+                                      "id": 2
+                                    }
+                                  }
+                                }
+                              }
+                            }
+                          }
+                        },
                         "IntentCoverage": {
                           "fields": {
                             "intents": {
@@ -4919,7 +4965,8 @@
                               "values": {
                                 "COVERAGE_TYPE_UNSPECIFIED": 0,
                                 "INTENT": 1,
-                                "PAGE_TRANSITION": 2
+                                "PAGE_TRANSITION": 2,
+                                "TRANSITION_ROUTE_GROUP": 3
                               }
                             }
                           }
@@ -4929,7 +4976,8 @@
                             "coverageType": {
                               "oneof": [
                                 "intentCoverage",
-                                "transitionCoverage"
+                                "transitionCoverage",
+                                "routeGroupCoverage"
                               ]
                             }
                           },
@@ -4948,6 +4996,10 @@
                             "transitionCoverage": {
                               "type": "TransitionCoverage",
                               "id": 4
+                            },
+                            "routeGroupCoverage": {
+                              "type": "TransitionRouteGroupCoverage",
+                              "id": 6
                             }
                           }
                         },
@@ -6179,6 +6231,10 @@
                             "payload": {
                               "type": "google.protobuf.Struct",
                               "id": 8
+                            },
+                            "sentimentAnalysisResult": {
+                              "type": "SentimentAnalysisResult",
+                              "id": 9
                             }
                           },
                           "nested": {
@@ -6227,6 +6283,18 @@
                                   }
                                 }
                               }
+                            },
+                            "SentimentAnalysisResult": {
+                              "fields": {
+                                "score": {
+                                  "type": "float",
+                                  "id": 1
+                                },
+                                "magnitude": {
+                                  "type": "float",
+                                  "id": 2
+                                }
+                              }
                             }
                           }
                         },
@@ -8406,14 +8474,6 @@
                             }
                           }
                         },
-                        "SsmlVoiceGender": {
-                          "values": {
-                            "SSML_VOICE_GENDER_UNSPECIFIED": 0,
-                            "SSML_VOICE_GENDER_MALE": 1,
-                            "SSML_VOICE_GENDER_FEMALE": 2,
-                            "SSML_VOICE_GENDER_NEUTRAL": 3
-                          }
-                        },
                         "OutputAudioConfig": {
                           "fields": {
                             "audioEncoding": {
@@ -8433,6 +8493,14 @@
                             }
                           }
                         },
+                        "SsmlVoiceGender": {
+                          "values": {
+                            "SSML_VOICE_GENDER_UNSPECIFIED": 0,
+                            "SSML_VOICE_GENDER_MALE": 1,
+                            "SSML_VOICE_GENDER_FEMALE": 2,
+                            "SSML_VOICE_GENDER_NEUTRAL": 3
+                          }
+                        },
                         "OutputAudioEncoding": {
                           "values": {
                             "OUTPUT_AUDIO_ENCODING_UNSPECIFIED": 0,
@@ -10141,6 +10209,10 @@
                               "type": "google.protobuf.Struct",
                               "id": 5
                             },
+                            "disableWebhook": {
+                              "type": "bool",
+                              "id": 7
+                            },
                             "analyzeQueryTextSentiment": {
                               "type": "bool",
                               "id": 8
@@ -10848,7 +10920,7 @@
                               "requestType": "RunTestCaseRequest",
                               "responseType": "google.longrunning.Operation",
                               "options": {
-                                "(google.api.http).post": "/v3beta1/projects/*/locations/*/agents/*/testCases:run",
+                                "(google.api.http).post": "/v3beta1/{name=projects/*/locations/*/agents/*/testCases/*}:run",
                                 "(google.api.http).body": "*",
                                 "(google.longrunning.operation_info).response_type": "RunTestCaseResponse",
                                 "(google.longrunning.operation_info).metadata_type": "RunTestCaseMetadata"
@@ -10856,7 +10928,7 @@
                               "parsedOptions": [
                                 {
                                   "(google.api.http)": {
-                                    "post": "/v3beta1/projects/*/locations/*/agents/*/testCases:run",
+                                    "post": "/v3beta1/{name=projects/*/locations/*/agents/*/testCases/*}:run",
                                     "body": "*"
                                   }
                                 },
@@ -11234,6 +11306,52 @@
                             }
                           }
                         },
+                        "TransitionRouteGroupCoverage": {
+                          "fields": {
+                            "coverages": {
+                              "rule": "repeated",
+                              "type": "Coverage",
+                              "id": 1
+                            },
+                            "coverageScore": {
+                              "type": "float",
+                              "id": 2
+                            }
+                          },
+                          "nested": {
+                            "Coverage": {
+                              "fields": {
+                                "routeGroup": {
+                                  "type": "TransitionRouteGroup",
+                                  "id": 1
+                                },
+                                "transitions": {
+                                  "rule": "repeated",
+                                  "type": "Transition",
+                                  "id": 2
+                                },
+                                "coverageScore": {
+                                  "type": "float",
+                                  "id": 3
+                                }
+                              },
+                              "nested": {
+                                "Transition": {
+                                  "fields": {
+                                    "transitionRoute": {
+                                      "type": "TransitionRoute",
+                                      "id": 1
+                                    },
+                                    "covered": {
+                                      "type": "bool",
+                                      "id": 2
+                                    }
+                                  }
+                                }
+                              }
+                            }
+                          }
+                        },
                         "IntentCoverage": {
                           "fields": {
                             "intents": {
@@ -11287,7 +11405,8 @@
                               "values": {
                                 "COVERAGE_TYPE_UNSPECIFIED": 0,
                                 "INTENT": 1,
-                                "PAGE_TRANSITION": 2
+                                "PAGE_TRANSITION": 2,
+                                "TRANSITION_ROUTE_GROUP": 3
                               }
                             }
                           }
@@ -11297,7 +11416,8 @@
                             "coverageType": {
                               "oneof": [
                                 "intentCoverage",
-                                "transitionCoverage"
+                                "transitionCoverage",
+                                "routeGroupCoverage"
                               ]
                             }
                           },
@@ -11316,6 +11436,10 @@
                             "transitionCoverage": {
                               "type": "TransitionCoverage",
                               "id": 4
+                            },
+                            "routeGroupCoverage": {
+                              "type": "TransitionRouteGroupCoverage",
+                              "id": 6
                             }
                           }
                         },
diff --git a/packages/google-cloud-dialogflow-cx/src/v3/entity_types_client.ts b/packages/google-cloud-dialogflow-cx/src/v3/entity_types_client.ts
index 2b0ca8a7ea6..e498bf08f78 100644
--- a/packages/google-cloud-dialogflow-cx/src/v3/entity_types_client.ts
+++ b/packages/google-cloud-dialogflow-cx/src/v3/entity_types_client.ts
@@ -421,7 +421,7 @@ export class EntityTypesClient {
    *
    *   If not specified, the agent's default language is used.
    *   [Many
-   *   languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   *   languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    *   are supported.
    *   Note: languages must be enabled in the agent before they can be used.
    * @param {object} [options]
@@ -528,7 +528,7 @@ export class EntityTypesClient {
    *
    *   If not specified, the agent's default language is used.
    *   [Many
-   *   languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   *   languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    *   are supported.
    *   Note: languages must be enabled in the agent before they can be used.
    * @param {object} [options]
@@ -632,7 +632,7 @@ export class EntityTypesClient {
    *
    *   If not specified, the agent's default language is used.
    *   [Many
-   *   languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   *   languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    *   are supported.
    *   Note: languages must be enabled in the agent before they can be used.
    * @param {google.protobuf.FieldMask} request.updateMask
@@ -846,7 +846,7 @@ export class EntityTypesClient {
    *
    *   If not specified, the agent's default language is used.
    *   [Many
-   *   languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   *   languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    *   are supported.
    *   Note: languages must be enabled in the agent before they can be used.
    * @param {number} request.pageSize
@@ -929,7 +929,7 @@ export class EntityTypesClient {
    *
    *   If not specified, the agent's default language is used.
    *   [Many
-   *   languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   *   languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    *   are supported.
    *   Note: languages must be enabled in the agent before they can be used.
    * @param {number} request.pageSize
@@ -990,7 +990,7 @@ export class EntityTypesClient {
    *
    *   If not specified, the agent's default language is used.
    *   [Many
-   *   languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   *   languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    *   are supported.
    *   Note: languages must be enabled in the agent before they can be used.
    * @param {number} request.pageSize
diff --git a/packages/google-cloud-dialogflow-cx/src/v3/flows_client.ts b/packages/google-cloud-dialogflow-cx/src/v3/flows_client.ts
index 7c31f5cc4ab..de470cd893a 100644
--- a/packages/google-cloud-dialogflow-cx/src/v3/flows_client.ts
+++ b/packages/google-cloud-dialogflow-cx/src/v3/flows_client.ts
@@ -459,7 +459,7 @@ export class FlowsClient {
    *
    *   If not specified, the agent's default language is used.
    *   [Many
-   *   languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   *   languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    *   are supported.
    *   Note: languages must be enabled in the agent before they can be used.
    * @param {object} [options]
@@ -666,7 +666,7 @@ export class FlowsClient {
    *
    *   If not specified, the agent's default language is used.
    *   [Many
-   *   languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   *   languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    *   are supported.
    *   Note: languages must be enabled in the agent before they can be used.
    * @param {object} [options]
@@ -770,7 +770,7 @@ export class FlowsClient {
    *
    *   If not specified, the agent's default language is used.
    *   [Many
-   *   languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   *   languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    *   are supported.
    *   Note: languages must be enabled in the agent before they can be used.
    * @param {object} [options]
@@ -1228,7 +1228,7 @@ export class FlowsClient {
    *
    *   If not specified, the agent's default language is used.
    *   [Many
-   *   languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   *   languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    *   are supported.
    *   Note: languages must be enabled in the agent before they can be used.
    * @param {object} [options]
@@ -1310,7 +1310,7 @@ export class FlowsClient {
    *
    *   If not specified, the agent's default language is used.
    *   [Many
-   *   languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   *   languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    *   are supported.
    *   Note: languages must be enabled in the agent before they can be used.
    * @param {object} [options]
@@ -1370,7 +1370,7 @@ export class FlowsClient {
    *
    *   If not specified, the agent's default language is used.
    *   [Many
-   *   languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   *   languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    *   are supported.
    *   Note: languages must be enabled in the agent before they can be used.
    * @param {object} [options]
diff --git a/packages/google-cloud-dialogflow-cx/src/v3/intents_client.ts b/packages/google-cloud-dialogflow-cx/src/v3/intents_client.ts
index 446e6697ca9..2dbd693ba68 100644
--- a/packages/google-cloud-dialogflow-cx/src/v3/intents_client.ts
+++ b/packages/google-cloud-dialogflow-cx/src/v3/intents_client.ts
@@ -415,7 +415,7 @@ export class IntentsClient {
    *
    *   If not specified, the agent's default language is used.
    *   [Many
-   *   languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   *   languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    *   are supported.
    *   Note: languages must be enabled in the agent before they can be used.
    * @param {object} [options]
@@ -518,7 +518,7 @@ export class IntentsClient {
    *
    *   If not specified, the agent's default language is used.
    *   [Many
-   *   languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   *   languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    *   are supported.
    *   Note: languages must be enabled in the agent before they can be used.
    * @param {object} [options]
@@ -620,7 +620,7 @@ export class IntentsClient {
    *
    *   If not specified, the agent's default language is used.
    *   [Many
-   *   languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   *   languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    *   are supported.
    *   Note: languages must be enabled in the agent before they can be used.
    * @param {google.protobuf.FieldMask} request.updateMask
@@ -822,7 +822,7 @@ export class IntentsClient {
    *
    *   If not specified, the agent's default language is used.
    *   [Many
-   *   languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   *   languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    *   are supported.
    *   Note: languages must be enabled in the agent before they can be used.
    * @param {google.cloud.dialogflow.cx.v3.IntentView} request.intentView
@@ -905,7 +905,7 @@ export class IntentsClient {
    *
    *   If not specified, the agent's default language is used.
    *   [Many
-   *   languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   *   languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    *   are supported.
    *   Note: languages must be enabled in the agent before they can be used.
    * @param {google.cloud.dialogflow.cx.v3.IntentView} request.intentView
@@ -966,7 +966,7 @@ export class IntentsClient {
    *
    *   If not specified, the agent's default language is used.
    *   [Many
-   *   languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   *   languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    *   are supported.
    *   Note: languages must be enabled in the agent before they can be used.
    * @param {google.cloud.dialogflow.cx.v3.IntentView} request.intentView
diff --git a/packages/google-cloud-dialogflow-cx/src/v3/pages_client.ts b/packages/google-cloud-dialogflow-cx/src/v3/pages_client.ts
index 3d0d5cafe3f..cf2afdb7f1c 100644
--- a/packages/google-cloud-dialogflow-cx/src/v3/pages_client.ts
+++ b/packages/google-cloud-dialogflow-cx/src/v3/pages_client.ts
@@ -420,7 +420,7 @@ export class PagesClient {
    *
    *   If not specified, the agent's default language is used.
    *   [Many
-   *   languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   *   languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    *   are supported.
    *   Note: languages must be enabled in the agent before they can be used.
    * @param {object} [options]
@@ -529,7 +529,7 @@ export class PagesClient {
    *
    *   If not specified, the agent's default language is used.
    *   [Many
-   *   languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   *   languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    *   are supported.
    *   Note: languages must be enabled in the agent before they can be used.
    * @param {object} [options]
@@ -636,7 +636,7 @@ export class PagesClient {
    *
    *   If not specified, the agent's default language is used.
    *   [Many
-   *   languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   *   languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    *   are supported.
    *   Note: languages must be enabled in the agent before they can be used.
    * @param {google.protobuf.FieldMask} request.updateMask
@@ -855,7 +855,7 @@ export class PagesClient {
    *
    *   If not specified, the agent's default language is used.
    *   [Many
-   *   languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   *   languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    *   are supported.
    *   Note: languages must be enabled in the agent before they can be used.
    * @param {number} request.pageSize
@@ -942,7 +942,7 @@ export class PagesClient {
    *
    *   If not specified, the agent's default language is used.
    *   [Many
-   *   languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   *   languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    *   are supported.
    *   Note: languages must be enabled in the agent before they can be used.
    * @param {number} request.pageSize
@@ -1007,7 +1007,7 @@ export class PagesClient {
    *
    *   If not specified, the agent's default language is used.
    *   [Many
-   *   languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   *   languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    *   are supported.
    *   Note: languages must be enabled in the agent before they can be used.
    * @param {number} request.pageSize
diff --git a/packages/google-cloud-dialogflow-cx/src/v3/test_cases_client.ts b/packages/google-cloud-dialogflow-cx/src/v3/test_cases_client.ts
index 78dd04d12d2..65a39e3a6d2 100644
--- a/packages/google-cloud-dialogflow-cx/src/v3/test_cases_client.ts
+++ b/packages/google-cloud-dialogflow-cx/src/v3/test_cases_client.ts
@@ -1041,6 +1041,13 @@ export class TestCasesClient {
       options = optionsOrCallback as CallOptions;
     }
     options = options || {};
+    options.otherArgs = options.otherArgs || {};
+    options.otherArgs.headers = options.otherArgs.headers || {};
+    options.otherArgs.headers[
+      'x-goog-request-params'
+    ] = gax.routingHeader.fromParams({
+      name: request.name || '',
+    });
     this.initialize();
     return this.innerApiCalls.runTestCase(request, options, callback);
   }
diff --git a/packages/google-cloud-dialogflow-cx/src/v3/transition_route_groups_client.ts b/packages/google-cloud-dialogflow-cx/src/v3/transition_route_groups_client.ts
index 2576709104d..c39291a703e 100644
--- a/packages/google-cloud-dialogflow-cx/src/v3/transition_route_groups_client.ts
+++ b/packages/google-cloud-dialogflow-cx/src/v3/transition_route_groups_client.ts
@@ -423,7 +423,7 @@ export class TransitionRouteGroupsClient {
    *
    *   If not specified, the agent's default language is used.
    *   [Many
-   *   languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   *   languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    *   are supported.
    *   Note: languages must be enabled in the agent before they can be used.
    * @param {object} [options]
@@ -539,7 +539,7 @@ export class TransitionRouteGroupsClient {
    *
    *   If not specified, the agent's default language is used.
    *   [Many
-   *   languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   *   languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    *   are supported.
    *   Note: languages must be enabled in the agent before they can be used.
    * @param {object} [options]
@@ -653,7 +653,7 @@ export class TransitionRouteGroupsClient {
    *
    *   If not specified, the agent's default language is used.
    *   [Many
-   *   languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   *   languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    *   are supported.
    *   Note: languages must be enabled in the agent before they can be used.
    * @param {object} [options]
@@ -882,7 +882,7 @@ export class TransitionRouteGroupsClient {
    *
    *   If not specified, the agent's default language is used.
    *   [Many
-   *   languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   *   languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    *   are supported.
    *   Note: languages must be enabled in the agent before they can be used.
    * @param {object} [options]
@@ -967,7 +967,7 @@ export class TransitionRouteGroupsClient {
    *
    *   If not specified, the agent's default language is used.
    *   [Many
-   *   languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   *   languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    *   are supported.
    *   Note: languages must be enabled in the agent before they can be used.
    * @param {object} [options]
@@ -1026,7 +1026,7 @@ export class TransitionRouteGroupsClient {
    *
    *   If not specified, the agent's default language is used.
    *   [Many
-   *   languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   *   languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    *   are supported.
    *   Note: languages must be enabled in the agent before they can be used.
    * @param {object} [options]
diff --git a/packages/google-cloud-dialogflow-cx/src/v3beta1/entity_types_client.ts b/packages/google-cloud-dialogflow-cx/src/v3beta1/entity_types_client.ts
index e4d676bdd62..e615c6f9a34 100644
--- a/packages/google-cloud-dialogflow-cx/src/v3beta1/entity_types_client.ts
+++ b/packages/google-cloud-dialogflow-cx/src/v3beta1/entity_types_client.ts
@@ -424,7 +424,7 @@ export class EntityTypesClient {
    *
    *   If not specified, the agent's default language is used.
    *   [Many
-   *   languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   *   languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    *   are supported.
    *   Note: languages must be enabled in the agent before they can be used.
    * @param {object} [options]
@@ -537,7 +537,7 @@ export class EntityTypesClient {
    *
    *   If not specified, the agent's default language is used.
    *   [Many
-   *   languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   *   languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    *   are supported.
    *   Note: languages must be enabled in the agent before they can be used.
    * @param {object} [options]
@@ -647,7 +647,7 @@ export class EntityTypesClient {
    *
    *   If not specified, the agent's default language is used.
    *   [Many
-   *   languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   *   languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    *   are supported.
    *   Note: languages must be enabled in the agent before they can be used.
    * @param {google.protobuf.FieldMask} request.updateMask
@@ -870,7 +870,7 @@ export class EntityTypesClient {
    *
    *   If not specified, the agent's default language is used.
    *   [Many
-   *   languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   *   languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    *   are supported.
    *   Note: languages must be enabled in the agent before they can be used.
    * @param {number} request.pageSize
@@ -953,7 +953,7 @@ export class EntityTypesClient {
    *
    *   If not specified, the agent's default language is used.
    *   [Many
-   *   languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   *   languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    *   are supported.
    *   Note: languages must be enabled in the agent before they can be used.
    * @param {number} request.pageSize
@@ -1014,7 +1014,7 @@ export class EntityTypesClient {
    *
    *   If not specified, the agent's default language is used.
    *   [Many
-   *   languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   *   languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    *   are supported.
    *   Note: languages must be enabled in the agent before they can be used.
    * @param {number} request.pageSize
diff --git a/packages/google-cloud-dialogflow-cx/src/v3beta1/flows_client.ts b/packages/google-cloud-dialogflow-cx/src/v3beta1/flows_client.ts
index c289af48c73..277763efd30 100644
--- a/packages/google-cloud-dialogflow-cx/src/v3beta1/flows_client.ts
+++ b/packages/google-cloud-dialogflow-cx/src/v3beta1/flows_client.ts
@@ -459,7 +459,7 @@ export class FlowsClient {
    *
    *   If not specified, the agent's default language is used.
    *   [Many
-   *   languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   *   languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    *   are supported.
    *   Note: languages must be enabled in the agent before they can be used.
    * @param {object} [options]
@@ -670,7 +670,7 @@ export class FlowsClient {
    *
    *   If not specified, the agent's default language is used.
    *   [Many
-   *   languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   *   languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    *   are supported.
    *   Note: languages must be enabled in the agent before they can be used.
    * @param {object} [options]
@@ -776,7 +776,7 @@ export class FlowsClient {
    *
    *   If not specified, the agent's default language is used.
    *   [Many
-   *   languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   *   languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    *   are supported.
    *   Note: languages must be enabled in the agent before they can be used.
    * @param {object} [options]
@@ -1240,7 +1240,7 @@ export class FlowsClient {
    *
    *   If not specified, the agent's default language is used.
    *   [Many
-   *   languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   *   languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    *   are supported.
    *   Note: languages must be enabled in the agent before they can be used.
    * @param {object} [options]
@@ -1322,7 +1322,7 @@ export class FlowsClient {
    *
    *   If not specified, the agent's default language is used.
    *   [Many
-   *   languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   *   languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    *   are supported.
    *   Note: languages must be enabled in the agent before they can be used.
    * @param {object} [options]
@@ -1382,7 +1382,7 @@ export class FlowsClient {
    *
    *   If not specified, the agent's default language is used.
    *   [Many
-   *   languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   *   languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    *   are supported.
    *   Note: languages must be enabled in the agent before they can be used.
    * @param {object} [options]
diff --git a/packages/google-cloud-dialogflow-cx/src/v3beta1/intents_client.ts b/packages/google-cloud-dialogflow-cx/src/v3beta1/intents_client.ts
index c7431a7b5ca..2ec18e72407 100644
--- a/packages/google-cloud-dialogflow-cx/src/v3beta1/intents_client.ts
+++ b/packages/google-cloud-dialogflow-cx/src/v3beta1/intents_client.ts
@@ -419,7 +419,7 @@ export class IntentsClient {
    *
    *   If not specified, the agent's default language is used.
    *   [Many
-   *   languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   *   languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    *   are supported.
    *   Note: languages must be enabled in the agent before they can be used.
    * @param {object} [options]
@@ -527,7 +527,7 @@ export class IntentsClient {
    *
    *   If not specified, the agent's default language is used.
    *   [Many
-   *   languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   *   languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    *   are supported.
    *   Note: languages must be enabled in the agent before they can be used.
    * @param {object} [options]
@@ -635,7 +635,7 @@ export class IntentsClient {
    *
    *   If not specified, the agent's default language is used.
    *   [Many
-   *   languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   *   languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    *   are supported.
    *   Note: languages must be enabled in the agent before they can be used.
    * @param {google.protobuf.FieldMask} request.updateMask
@@ -846,7 +846,7 @@ export class IntentsClient {
    *
    *   If not specified, the agent's default language is used.
    *   [Many
-   *   languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   *   languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    *   are supported.
    *   Note: languages must be enabled in the agent before they can be used.
    * @param {google.cloud.dialogflow.cx.v3beta1.IntentView} request.intentView
@@ -929,7 +929,7 @@ export class IntentsClient {
    *
    *   If not specified, the agent's default language is used.
    *   [Many
-   *   languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   *   languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    *   are supported.
    *   Note: languages must be enabled in the agent before they can be used.
    * @param {google.cloud.dialogflow.cx.v3beta1.IntentView} request.intentView
@@ -990,7 +990,7 @@ export class IntentsClient {
    *
    *   If not specified, the agent's default language is used.
    *   [Many
-   *   languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   *   languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    *   are supported.
    *   Note: languages must be enabled in the agent before they can be used.
    * @param {google.cloud.dialogflow.cx.v3beta1.IntentView} request.intentView
diff --git a/packages/google-cloud-dialogflow-cx/src/v3beta1/pages_client.ts b/packages/google-cloud-dialogflow-cx/src/v3beta1/pages_client.ts
index 1c868961405..7e41ad01e9d 100644
--- a/packages/google-cloud-dialogflow-cx/src/v3beta1/pages_client.ts
+++ b/packages/google-cloud-dialogflow-cx/src/v3beta1/pages_client.ts
@@ -424,7 +424,7 @@ export class PagesClient {
    *
    *   If not specified, the agent's default language is used.
    *   [Many
-   *   languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   *   languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    *   are supported.
    *   Note: languages must be enabled in the agent before they can be used.
    * @param {object} [options]
@@ -535,7 +535,7 @@ export class PagesClient {
    *
    *   If not specified, the agent's default language is used.
    *   [Many
-   *   languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   *   languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    *   are supported.
    *   Note: languages must be enabled in the agent before they can be used.
    * @param {object} [options]
@@ -642,7 +642,7 @@ export class PagesClient {
    *
    *   If not specified, the agent's default language is used.
    *   [Many
-   *   languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   *   languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    *   are supported.
    *   Note: languages must be enabled in the agent before they can be used.
    * @param {google.protobuf.FieldMask} request.updateMask
@@ -861,7 +861,7 @@ export class PagesClient {
    *
    *   If not specified, the agent's default language is used.
    *   [Many
-   *   languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   *   languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    *   are supported.
    *   Note: languages must be enabled in the agent before they can be used.
    * @param {number} request.pageSize
@@ -948,7 +948,7 @@ export class PagesClient {
    *
    *   If not specified, the agent's default language is used.
    *   [Many
-   *   languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   *   languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    *   are supported.
    *   Note: languages must be enabled in the agent before they can be used.
    * @param {number} request.pageSize
@@ -1013,7 +1013,7 @@ export class PagesClient {
    *
    *   If not specified, the agent's default language is used.
    *   [Many
-   *   languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   *   languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    *   are supported.
    *   Note: languages must be enabled in the agent before they can be used.
    * @param {number} request.pageSize
diff --git a/packages/google-cloud-dialogflow-cx/src/v3beta1/test_cases_client.ts b/packages/google-cloud-dialogflow-cx/src/v3beta1/test_cases_client.ts
index 4ca1eef3c4f..7b8eb782a0a 100644
--- a/packages/google-cloud-dialogflow-cx/src/v3beta1/test_cases_client.ts
+++ b/packages/google-cloud-dialogflow-cx/src/v3beta1/test_cases_client.ts
@@ -1053,6 +1053,13 @@ export class TestCasesClient {
       options = optionsOrCallback as CallOptions;
     }
     options = options || {};
+    options.otherArgs = options.otherArgs || {};
+    options.otherArgs.headers = options.otherArgs.headers || {};
+    options.otherArgs.headers[
+      'x-goog-request-params'
+    ] = gax.routingHeader.fromParams({
+      name: request.name || '',
+    });
     this.initialize();
     return this.innerApiCalls.runTestCase(request, options, callback);
   }
diff --git a/packages/google-cloud-dialogflow-cx/src/v3beta1/transition_route_groups_client.ts b/packages/google-cloud-dialogflow-cx/src/v3beta1/transition_route_groups_client.ts
index 58fb0e9e746..5345cff3d50 100644
--- a/packages/google-cloud-dialogflow-cx/src/v3beta1/transition_route_groups_client.ts
+++ b/packages/google-cloud-dialogflow-cx/src/v3beta1/transition_route_groups_client.ts
@@ -423,7 +423,7 @@ export class TransitionRouteGroupsClient {
    *
    *   If not specified, the agent's default language is used.
    *   [Many
-   *   languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   *   languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    *   are supported.
    *   Note: languages must be enabled in the agent before they can be used.
    * @param {object} [options]
@@ -539,7 +539,7 @@ export class TransitionRouteGroupsClient {
    *
    *   If not specified, the agent's default language is used.
    *   [Many
-   *   languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   *   languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    *   are supported.
    *   Note: languages must be enabled in the agent before they can be used.
    * @param {object} [options]
@@ -653,7 +653,7 @@ export class TransitionRouteGroupsClient {
    *
    *   If not specified, the agent's default language is used.
    *   [Many
-   *   languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   *   languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    *   are supported.
    *   Note: languages must be enabled in the agent before they can be used.
    * @param {object} [options]
@@ -882,7 +882,7 @@ export class TransitionRouteGroupsClient {
    *
    *   If not specified, the agent's default language is used.
    *   [Many
-   *   languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   *   languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    *   are supported.
    *   Note: languages must be enabled in the agent before they can be used.
    * @param {object} [options]
@@ -967,7 +967,7 @@ export class TransitionRouteGroupsClient {
    *
    *   If not specified, the agent's default language is used.
    *   [Many
-   *   languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   *   languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    *   are supported.
    *   Note: languages must be enabled in the agent before they can be used.
    * @param {object} [options]
@@ -1026,7 +1026,7 @@ export class TransitionRouteGroupsClient {
    *
    *   If not specified, the agent's default language is used.
    *   [Many
-   *   languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   *   languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    *   are supported.
    *   Note: languages must be enabled in the agent before they can be used.
    * @param {object} [options]
diff --git a/packages/google-cloud-dialogflow-cx/synth.metadata b/packages/google-cloud-dialogflow-cx/synth.metadata
index b0856a19c20..0f73af5a354 100644
--- a/packages/google-cloud-dialogflow-cx/synth.metadata
+++ b/packages/google-cloud-dialogflow-cx/synth.metadata
@@ -4,15 +4,15 @@
       "git": {
         "name": ".",
         "remote": "https://github.com/googleapis/nodejs-dialogflow-cx.git",
-        "sha": "fae01469eed585596dcc935d9a50453cc8c6adf1"
+        "sha": "e55908cd0056b1c0b5b0a1ccf9d417ed5f66e733"
       }
     },
     {
       "git": {
         "name": "googleapis",
         "remote": "https://github.com/googleapis/googleapis.git",
-        "sha": "e28aa8570dc86136fe677202c976f4ee00d77f61",
-        "internalRef": "356624136"
+        "sha": "718eadce2fcaa3c4246ab56b6a507096cb100950",
+        "internalRef": "359860671"
       }
     },
     {
diff --git a/packages/google-cloud-dialogflow-cx/test/gapic_test_cases_v3.ts b/packages/google-cloud-dialogflow-cx/test/gapic_test_cases_v3.ts
index 1c512a17de3..d98161c1c5f 100644
--- a/packages/google-cloud-dialogflow-cx/test/gapic_test_cases_v3.ts
+++ b/packages/google-cloud-dialogflow-cx/test/gapic_test_cases_v3.ts
@@ -801,7 +801,15 @@ describe('v3.TestCasesClient', () => {
       const request = generateSampleMessage(
         new protos.google.cloud.dialogflow.cx.v3.RunTestCaseRequest()
       );
-      const expectedOptions = {};
+      request.name = '';
+      const expectedHeaderRequestParams = 'name=';
+      const expectedOptions = {
+        otherArgs: {
+          headers: {
+            'x-goog-request-params': expectedHeaderRequestParams,
+          },
+        },
+      };
       const expectedResponse = generateSampleMessage(
         new protos.google.longrunning.Operation()
       );
@@ -825,7 +833,15 @@ describe('v3.TestCasesClient', () => {
       const request = generateSampleMessage(
         new protos.google.cloud.dialogflow.cx.v3.RunTestCaseRequest()
       );
-      const expectedOptions = {};
+      request.name = '';
+      const expectedHeaderRequestParams = 'name=';
+      const expectedOptions = {
+        otherArgs: {
+          headers: {
+            'x-goog-request-params': expectedHeaderRequestParams,
+          },
+        },
+      };
       const expectedResponse = generateSampleMessage(
         new protos.google.longrunning.Operation()
       );
@@ -872,7 +888,15 @@ describe('v3.TestCasesClient', () => {
       const request = generateSampleMessage(
         new protos.google.cloud.dialogflow.cx.v3.RunTestCaseRequest()
       );
-      const expectedOptions = {};
+      request.name = '';
+      const expectedHeaderRequestParams = 'name=';
+      const expectedOptions = {
+        otherArgs: {
+          headers: {
+            'x-goog-request-params': expectedHeaderRequestParams,
+          },
+        },
+      };
       const expectedError = new Error('expected');
       client.innerApiCalls.runTestCase = stubLongRunningCall(
         undefined,
@@ -895,7 +919,15 @@ describe('v3.TestCasesClient', () => {
       const request = generateSampleMessage(
         new protos.google.cloud.dialogflow.cx.v3.RunTestCaseRequest()
       );
-      const expectedOptions = {};
+      request.name = '';
+      const expectedHeaderRequestParams = 'name=';
+      const expectedOptions = {
+        otherArgs: {
+          headers: {
+            'x-goog-request-params': expectedHeaderRequestParams,
+          },
+        },
+      };
       const expectedError = new Error('expected');
       client.innerApiCalls.runTestCase = stubLongRunningCall(
         undefined,
diff --git a/packages/google-cloud-dialogflow-cx/test/gapic_test_cases_v3beta1.ts b/packages/google-cloud-dialogflow-cx/test/gapic_test_cases_v3beta1.ts
index b554b71860f..fd0a6b86b70 100644
--- a/packages/google-cloud-dialogflow-cx/test/gapic_test_cases_v3beta1.ts
+++ b/packages/google-cloud-dialogflow-cx/test/gapic_test_cases_v3beta1.ts
@@ -801,7 +801,15 @@ describe('v3beta1.TestCasesClient', () => {
       const request = generateSampleMessage(
         new protos.google.cloud.dialogflow.cx.v3beta1.RunTestCaseRequest()
       );
-      const expectedOptions = {};
+      request.name = '';
+      const expectedHeaderRequestParams = 'name=';
+      const expectedOptions = {
+        otherArgs: {
+          headers: {
+            'x-goog-request-params': expectedHeaderRequestParams,
+          },
+        },
+      };
       const expectedResponse = generateSampleMessage(
         new protos.google.longrunning.Operation()
       );
@@ -825,7 +833,15 @@ describe('v3beta1.TestCasesClient', () => {
       const request = generateSampleMessage(
         new protos.google.cloud.dialogflow.cx.v3beta1.RunTestCaseRequest()
       );
-      const expectedOptions = {};
+      request.name = '';
+      const expectedHeaderRequestParams = 'name=';
+      const expectedOptions = {
+        otherArgs: {
+          headers: {
+            'x-goog-request-params': expectedHeaderRequestParams,
+          },
+        },
+      };
       const expectedResponse = generateSampleMessage(
         new protos.google.longrunning.Operation()
       );
@@ -872,7 +888,15 @@ describe('v3beta1.TestCasesClient', () => {
       const request = generateSampleMessage(
         new protos.google.cloud.dialogflow.cx.v3beta1.RunTestCaseRequest()
       );
-      const expectedOptions = {};
+      request.name = '';
+      const expectedHeaderRequestParams = 'name=';
+      const expectedOptions = {
+        otherArgs: {
+          headers: {
+            'x-goog-request-params': expectedHeaderRequestParams,
+          },
+        },
+      };
       const expectedError = new Error('expected');
       client.innerApiCalls.runTestCase = stubLongRunningCall(
         undefined,
@@ -895,7 +919,15 @@ describe('v3beta1.TestCasesClient', () => {
       const request = generateSampleMessage(
         new protos.google.cloud.dialogflow.cx.v3beta1.RunTestCaseRequest()
       );
-      const expectedOptions = {};
+      request.name = '';
+      const expectedHeaderRequestParams = 'name=';
+      const expectedOptions = {
+        otherArgs: {
+          headers: {
+            'x-goog-request-params': expectedHeaderRequestParams,
+          },
+        },
+      };
       const expectedError = new Error('expected');
       client.innerApiCalls.runTestCase = stubLongRunningCall(
         undefined,