From ed2467393107183339d68016993c79e18d471c5c Mon Sep 17 00:00:00 2001
From: "gcf-owl-bot[bot]" <78513119+gcf-owl-bot[bot]@users.noreply.github.com>
Date: Tue, 23 Aug 2022 00:18:12 +0000
Subject: [PATCH] fix: better support for fallback mode (#305)

- [ ] Regenerate this pull request now.

PiperOrigin-RevId: 468790263

Source-Link: https://github.com/googleapis/googleapis/commit/873ab456273d105245df0fb82a6c17a814553b80

Source-Link: https://github.com/googleapis/googleapis-gen/commit/cb6f37aeff2a3472e40a7bbace8c67d75e24bee5
Copy-Tag: eyJwIjoiLmdpdGh1Yi8uT3dsQm90LnlhbWwiLCJoIjoiY2I2ZjM3YWVmZjJhMzQ3MmU0MGE3YmJhY2U4YzY3ZDc1ZTI0YmVlNSJ9
---
 .../generated/v3/agents.create_agent.js       |   3 +
 .../generated/v3/agents.delete_agent.js       |   3 +
 .../generated/v3/agents.export_agent.js       |   3 +
 .../samples/generated/v3/agents.get_agent.js  |   3 +
 .../v3/agents.get_agent_validation_result.js  |   3 +
 .../generated/v3/agents.list_agents.js        |   3 +
 .../generated/v3/agents.restore_agent.js      |   3 +
 .../generated/v3/agents.update_agent.js       |   3 +
 .../generated/v3/agents.validate_agent.js     |   3 +
 .../generated/v3/changelogs.get_changelog.js  |   3 +
 .../v3/changelogs.list_changelogs.js          |   3 +
 .../v3/deployments.get_deployment.js          |   3 +
 .../v3/deployments.list_deployments.js        |   3 +
 .../v3/entity_types.create_entity_type.js     |   3 +
 .../v3/entity_types.delete_entity_type.js     |   3 +
 .../v3/entity_types.get_entity_type.js        |   3 +
 .../v3/entity_types.list_entity_types.js      |   3 +
 .../v3/entity_types.update_entity_type.js     |   3 +
 .../v3/environments.create_environment.js     |   3 +
 .../v3/environments.delete_environment.js     |   3 +
 .../generated/v3/environments.deploy_flow.js  |   3 +
 .../v3/environments.get_environment.js        |   3 +
 ...vironments.list_continuous_test_results.js |   3 +
 .../v3/environments.list_environments.js      |   3 +
 ...environments.lookup_environment_history.js |   3 +
 .../v3/environments.run_continuous_test.js    |   3 +
 .../v3/environments.update_environment.js     |   3 +
 .../v3/experiments.create_experiment.js       |   3 +
 .../v3/experiments.delete_experiment.js       |   3 +
 .../v3/experiments.get_experiment.js          |   3 +
 .../v3/experiments.list_experiments.js        |   3 +
 .../v3/experiments.start_experiment.js        |   3 +
 .../v3/experiments.stop_experiment.js         |   3 +
 .../v3/experiments.update_experiment.js       |   3 +
 .../samples/generated/v3/flows.create_flow.js |   3 +
 .../samples/generated/v3/flows.delete_flow.js |   3 +
 .../samples/generated/v3/flows.export_flow.js |   3 +
 .../samples/generated/v3/flows.get_flow.js    |   3 +
 .../v3/flows.get_flow_validation_result.js    |   3 +
 .../samples/generated/v3/flows.import_flow.js |   3 +
 .../samples/generated/v3/flows.list_flows.js  |   3 +
 .../samples/generated/v3/flows.train_flow.js  |   3 +
 .../samples/generated/v3/flows.update_flow.js |   3 +
 .../generated/v3/flows.validate_flow.js       |   3 +
 .../generated/v3/intents.create_intent.js     |   3 +
 .../generated/v3/intents.delete_intent.js     |   3 +
 .../generated/v3/intents.get_intent.js        |   3 +
 .../generated/v3/intents.list_intents.js      |   3 +
 .../generated/v3/intents.update_intent.js     |   3 +
 .../samples/generated/v3/pages.create_page.js |   3 +
 .../samples/generated/v3/pages.delete_page.js |   3 +
 .../samples/generated/v3/pages.get_page.js    |   3 +
 .../samples/generated/v3/pages.list_pages.js  |   3 +
 .../samples/generated/v3/pages.update_page.js |   3 +
 ...ttings_service.create_security_settings.js |   3 +
 ...ttings_service.delete_security_settings.js |   3 +
 ..._settings_service.get_security_settings.js |   3 +
 ...settings_service.list_security_settings.js |   3 +
 ...ttings_service.update_security_settings.js |   3 +
 ...entity_types.create_session_entity_type.js |   3 +
 ...entity_types.delete_session_entity_type.js |   3 +
 ...on_entity_types.get_session_entity_type.js |   3 +
 ..._entity_types.list_session_entity_types.js |   3 +
 ...entity_types.update_session_entity_type.js |   3 +
 .../generated/v3/sessions.detect_intent.js    |   3 +
 .../generated/v3/sessions.fulfill_intent.js   |   3 +
 .../generated/v3/sessions.match_intent.js     |   3 +
 .../v3/sessions.streaming_detect_intent.js    |   3 +
 ...etadata.google.cloud.dialogflow.cx.v3.json | 194 ++++++++---------
 .../v3/test_cases.batch_delete_test_cases.js  |   3 +
 .../v3/test_cases.batch_run_test_cases.js     |   3 +
 .../v3/test_cases.calculate_coverage.js       |   3 +
 .../v3/test_cases.create_test_case.js         |   3 +
 .../v3/test_cases.export_test_cases.js        |   3 +
 .../generated/v3/test_cases.get_test_case.js  |   3 +
 .../v3/test_cases.get_test_case_result.js     |   3 +
 .../v3/test_cases.import_test_cases.js        |   3 +
 .../v3/test_cases.list_test_case_results.js   |   3 +
 .../v3/test_cases.list_test_cases.js          |   3 +
 .../generated/v3/test_cases.run_test_case.js  |   3 +
 .../v3/test_cases.update_test_case.js         |   3 +
 ...te_groups.create_transition_route_group.js |   3 +
 ...te_groups.delete_transition_route_group.js |   3 +
 ...route_groups.get_transition_route_group.js |   3 +
 ...ute_groups.list_transition_route_groups.js |   3 +
 ...te_groups.update_transition_route_group.js |   3 +
 .../generated/v3/versions.compare_versions.js |   3 +
 .../generated/v3/versions.create_version.js   |   3 +
 .../generated/v3/versions.delete_version.js   |   3 +
 .../generated/v3/versions.get_version.js      |   3 +
 .../generated/v3/versions.list_versions.js    |   3 +
 .../generated/v3/versions.load_version.js     |   3 +
 .../generated/v3/versions.update_version.js   |   3 +
 .../generated/v3/webhooks.create_webhook.js   |   3 +
 .../generated/v3/webhooks.delete_webhook.js   |   3 +
 .../generated/v3/webhooks.get_webhook.js      |   3 +
 .../generated/v3/webhooks.list_webhooks.js    |   3 +
 .../generated/v3/webhooks.update_webhook.js   |   3 +
 .../generated/v3beta1/agents.create_agent.js  |   3 +
 .../generated/v3beta1/agents.delete_agent.js  |   3 +
 .../generated/v3beta1/agents.export_agent.js  |   3 +
 .../generated/v3beta1/agents.get_agent.js     |   3 +
 .../agents.get_agent_validation_result.js     |   3 +
 .../generated/v3beta1/agents.list_agents.js   |   3 +
 .../generated/v3beta1/agents.restore_agent.js |   3 +
 .../generated/v3beta1/agents.update_agent.js  |   3 +
 .../v3beta1/agents.validate_agent.js          |   3 +
 .../v3beta1/changelogs.get_changelog.js       |   3 +
 .../v3beta1/changelogs.list_changelogs.js     |   3 +
 .../v3beta1/deployments.get_deployment.js     |   3 +
 .../v3beta1/deployments.list_deployments.js   |   3 +
 .../entity_types.create_entity_type.js        |   3 +
 .../entity_types.delete_entity_type.js        |   3 +
 .../v3beta1/entity_types.get_entity_type.js   |   3 +
 .../v3beta1/entity_types.list_entity_types.js |   3 +
 .../entity_types.update_entity_type.js        |   3 +
 .../environments.create_environment.js        |   3 +
 .../environments.delete_environment.js        |   3 +
 .../v3beta1/environments.deploy_flow.js       |   3 +
 .../v3beta1/environments.get_environment.js   |   3 +
 ...vironments.list_continuous_test_results.js |   3 +
 .../v3beta1/environments.list_environments.js |   3 +
 ...environments.lookup_environment_history.js |   3 +
 .../environments.run_continuous_test.js       |   3 +
 .../environments.update_environment.js        |   3 +
 .../v3beta1/experiments.create_experiment.js  |   3 +
 .../v3beta1/experiments.delete_experiment.js  |   3 +
 .../v3beta1/experiments.get_experiment.js     |   3 +
 .../v3beta1/experiments.list_experiments.js   |   3 +
 .../v3beta1/experiments.start_experiment.js   |   3 +
 .../v3beta1/experiments.stop_experiment.js    |   3 +
 .../v3beta1/experiments.update_experiment.js  |   3 +
 .../generated/v3beta1/flows.create_flow.js    |   3 +
 .../generated/v3beta1/flows.delete_flow.js    |   3 +
 .../generated/v3beta1/flows.export_flow.js    |   3 +
 .../generated/v3beta1/flows.get_flow.js       |   3 +
 .../flows.get_flow_validation_result.js       |   3 +
 .../generated/v3beta1/flows.import_flow.js    |   3 +
 .../generated/v3beta1/flows.list_flows.js     |   3 +
 .../generated/v3beta1/flows.train_flow.js     |   3 +
 .../generated/v3beta1/flows.update_flow.js    |   3 +
 .../generated/v3beta1/flows.validate_flow.js  |   3 +
 .../v3beta1/intents.create_intent.js          |   3 +
 .../v3beta1/intents.delete_intent.js          |   3 +
 .../generated/v3beta1/intents.get_intent.js   |   3 +
 .../generated/v3beta1/intents.list_intents.js |   3 +
 .../v3beta1/intents.update_intent.js          |   3 +
 .../generated/v3beta1/pages.create_page.js    |   3 +
 .../generated/v3beta1/pages.delete_page.js    |   3 +
 .../generated/v3beta1/pages.get_page.js       |   3 +
 .../generated/v3beta1/pages.list_pages.js     |   3 +
 .../generated/v3beta1/pages.update_page.js    |   3 +
 ...ttings_service.create_security_settings.js |   3 +
 ...ttings_service.delete_security_settings.js |   3 +
 ..._settings_service.get_security_settings.js |   3 +
 ...settings_service.list_security_settings.js |   3 +
 ...ttings_service.update_security_settings.js |   3 +
 ...entity_types.create_session_entity_type.js |   3 +
 ...entity_types.delete_session_entity_type.js |   3 +
 ...on_entity_types.get_session_entity_type.js |   3 +
 ..._entity_types.list_session_entity_types.js |   3 +
 ...entity_types.update_session_entity_type.js |   3 +
 .../v3beta1/sessions.detect_intent.js         |   3 +
 .../v3beta1/sessions.fulfill_intent.js        |   3 +
 .../v3beta1/sessions.match_intent.js          |   3 +
 .../sessions.streaming_detect_intent.js       |   3 +
 ...ta.google.cloud.dialogflow.cx.v3beta1.json | 194 ++++++++---------
 .../test_cases.batch_delete_test_cases.js     |   3 +
 .../test_cases.batch_run_test_cases.js        |   3 +
 .../v3beta1/test_cases.calculate_coverage.js  |   3 +
 .../v3beta1/test_cases.create_test_case.js    |   3 +
 .../v3beta1/test_cases.export_test_cases.js   |   3 +
 .../v3beta1/test_cases.get_test_case.js       |   3 +
 .../test_cases.get_test_case_result.js        |   3 +
 .../v3beta1/test_cases.import_test_cases.js   |   3 +
 .../test_cases.list_test_case_results.js      |   3 +
 .../v3beta1/test_cases.list_test_cases.js     |   3 +
 .../v3beta1/test_cases.run_test_case.js       |   3 +
 .../v3beta1/test_cases.update_test_case.js    |   3 +
 ...te_groups.create_transition_route_group.js |   3 +
 ...te_groups.delete_transition_route_group.js |   3 +
 ...route_groups.get_transition_route_group.js |   3 +
 ...ute_groups.list_transition_route_groups.js |   3 +
 ...te_groups.update_transition_route_group.js |   3 +
 .../v3beta1/versions.compare_versions.js      |   3 +
 .../v3beta1/versions.create_version.js        |   3 +
 .../v3beta1/versions.delete_version.js        |   3 +
 .../generated/v3beta1/versions.get_version.js |   3 +
 .../v3beta1/versions.list_versions.js         |   3 +
 .../v3beta1/versions.load_version.js          |   3 +
 .../v3beta1/versions.update_version.js        |   3 +
 .../v3beta1/webhooks.create_webhook.js        |   3 +
 .../v3beta1/webhooks.delete_webhook.js        |   3 +
 .../generated/v3beta1/webhooks.get_webhook.js |   3 +
 .../v3beta1/webhooks.list_webhooks.js         |   3 +
 .../v3beta1/webhooks.update_webhook.js        |   3 +
 .../src/v3/agents_client.ts                   |  12 +-
 .../src/v3/changelogs_client.ts               |  10 +-
 .../src/v3/deployments_client.ts              |  10 +-
 .../src/v3/entity_types_client.ts             |  10 +-
 .../src/v3/environments_client.ts             |  24 +--
 .../src/v3/experiments_client.ts              |  10 +-
 .../src/v3/flows_client.ts                    |  14 +-
 .../src/v3/intents_client.ts                  |  10 +-
 .../src/v3/pages_client.ts                    |  10 +-
 .../v3/security_settings_service_client.ts    |  10 +-
 .../src/v3/session_entity_types_client.ts     |  10 +-
 .../src/v3/sessions_client.ts                 |   5 +-
 .../src/v3/test_cases_client.ts               |  20 +-
 .../src/v3/transition_route_groups_client.ts  |  10 +-
 .../src/v3/versions_client.ts                 |  12 +-
 .../src/v3/webhooks_client.ts                 |  10 +-
 .../src/v3beta1/agents_client.ts              |  12 +-
 .../src/v3beta1/changelogs_client.ts          |  10 +-
 .../src/v3beta1/deployments_client.ts         |  10 +-
 .../src/v3beta1/entity_types_client.ts        |  10 +-
 .../src/v3beta1/environments_client.ts        |  24 +--
 .../src/v3beta1/experiments_client.ts         |  10 +-
 .../src/v3beta1/flows_client.ts               |  14 +-
 .../src/v3beta1/intents_client.ts             |  10 +-
 .../src/v3beta1/pages_client.ts               |  10 +-
 .../security_settings_service_client.ts       |  10 +-
 .../v3beta1/session_entity_types_client.ts    |  10 +-
 .../src/v3beta1/sessions_client.ts            |   5 +-
 .../src/v3beta1/test_cases_client.ts          |  20 +-
 .../v3beta1/transition_route_groups_client.ts |  10 +-
 .../src/v3beta1/versions_client.ts            |  12 +-
 .../src/v3beta1/webhooks_client.ts            |  10 +-
 .../test/gapic_agents_v3.ts                   | 156 +++++++-------
 .../test/gapic_agents_v3beta1.ts              | 156 +++++++-------
 .../test/gapic_changelogs_v3.ts               | 163 +++++++-------
 .../test/gapic_changelogs_v3beta1.ts          | 163 +++++++-------
 .../test/gapic_deployments_v3.ts              | 163 +++++++-------
 .../test/gapic_deployments_v3beta1.ts         | 165 +++++++-------
 .../test/gapic_entity_types_v3.ts             | 163 +++++++-------
 .../test/gapic_entity_types_v3beta1.ts        | 165 +++++++-------
 .../test/gapic_environments_v3.ts             | 156 +++++++-------
 .../test/gapic_environments_v3beta1.ts        | 160 +++++++-------
 .../test/gapic_experiments_v3.ts              | 163 +++++++-------
 .../test/gapic_experiments_v3beta1.ts         | 165 +++++++-------
 .../test/gapic_flows_v3.ts                    | 156 +++++++-------
 .../test/gapic_flows_v3beta1.ts               | 156 +++++++-------
 .../test/gapic_intents_v3.ts                  | 163 +++++++-------
 .../test/gapic_intents_v3beta1.ts             | 163 +++++++-------
 .../test/gapic_pages_v3.ts                    | 163 +++++++-------
 .../test/gapic_pages_v3beta1.ts               | 163 +++++++-------
 .../gapic_security_settings_service_v3.ts     | 189 ++++++++--------
 ...gapic_security_settings_service_v3beta1.ts | 202 +++++++++---------
 .../test/gapic_session_entity_types_v3.ts     | 167 +++++++--------
 .../gapic_session_entity_types_v3beta1.ts     | 184 ++++++++--------
 .../test/gapic_sessions_v3.ts                 | 163 +++++++-------
 .../test/gapic_sessions_v3beta1.ts            | 163 +++++++-------
 .../test/gapic_test_cases_v3.ts               | 156 +++++++-------
 .../test/gapic_test_cases_v3beta1.ts          | 156 +++++++-------
 .../test/gapic_transition_route_groups_v3.ts  | 185 ++++++++--------
 .../gapic_transition_route_groups_v3beta1.ts  | 189 ++++++++--------
 .../test/gapic_versions_v3.ts                 | 156 +++++++-------
 .../test/gapic_versions_v3beta1.ts            | 156 +++++++-------
 .../test/gapic_webhooks_v3.ts                 | 163 +++++++-------
 .../test/gapic_webhooks_v3beta1.ts            | 163 +++++++-------
 260 files changed, 3598 insertions(+), 3040 deletions(-)

diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/agents.create_agent.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/agents.create_agent.js
index 4f2f20d2f8c..068cddce899 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/agents.create_agent.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/agents.create_agent.js
@@ -23,6 +23,9 @@
 function main(parent, agent) {
   // [START dialogflow_v3_generated_Agents_CreateAgent_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/agents.delete_agent.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/agents.delete_agent.js
index c12d28a6c43..2c90d044799 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/agents.delete_agent.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/agents.delete_agent.js
@@ -23,6 +23,9 @@
 function main(name) {
   // [START dialogflow_v3_generated_Agents_DeleteAgent_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/agents.export_agent.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/agents.export_agent.js
index f028c286c66..8734d3419fa 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/agents.export_agent.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/agents.export_agent.js
@@ -23,6 +23,9 @@
 function main(name) {
   // [START dialogflow_v3_generated_Agents_ExportAgent_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/agents.get_agent.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/agents.get_agent.js
index 9a2c086d318..404dd14f26d 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/agents.get_agent.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/agents.get_agent.js
@@ -23,6 +23,9 @@
 function main(name) {
   // [START dialogflow_v3_generated_Agents_GetAgent_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/agents.get_agent_validation_result.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/agents.get_agent_validation_result.js
index a32684dd45d..2968c672318 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/agents.get_agent_validation_result.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/agents.get_agent_validation_result.js
@@ -23,6 +23,9 @@
 function main(name) {
   // [START dialogflow_v3_generated_Agents_GetAgentValidationResult_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/agents.list_agents.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/agents.list_agents.js
index d07b40aeb1b..5b8b6ccc417 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/agents.list_agents.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/agents.list_agents.js
@@ -23,6 +23,9 @@
 function main(parent) {
   // [START dialogflow_v3_generated_Agents_ListAgents_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/agents.restore_agent.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/agents.restore_agent.js
index 841939f4ffa..52f91d3f559 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/agents.restore_agent.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/agents.restore_agent.js
@@ -23,6 +23,9 @@
 function main(name) {
   // [START dialogflow_v3_generated_Agents_RestoreAgent_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/agents.update_agent.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/agents.update_agent.js
index d48ef831f39..60380732046 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/agents.update_agent.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/agents.update_agent.js
@@ -23,6 +23,9 @@
 function main(agent) {
   // [START dialogflow_v3_generated_Agents_UpdateAgent_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/agents.validate_agent.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/agents.validate_agent.js
index 987a8d0be4d..e156e0a9129 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/agents.validate_agent.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/agents.validate_agent.js
@@ -23,6 +23,9 @@
 function main(name) {
   // [START dialogflow_v3_generated_Agents_ValidateAgent_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/changelogs.get_changelog.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/changelogs.get_changelog.js
index 968481ef528..15c5f6090f4 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/changelogs.get_changelog.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/changelogs.get_changelog.js
@@ -23,6 +23,9 @@
 function main(name) {
   // [START dialogflow_v3_generated_Changelogs_GetChangelog_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/changelogs.list_changelogs.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/changelogs.list_changelogs.js
index 3b288a7766b..100b4856ae5 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/changelogs.list_changelogs.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/changelogs.list_changelogs.js
@@ -23,6 +23,9 @@
 function main(parent) {
   // [START dialogflow_v3_generated_Changelogs_ListChangelogs_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/deployments.get_deployment.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/deployments.get_deployment.js
index ce7e3de446c..d989c076511 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/deployments.get_deployment.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/deployments.get_deployment.js
@@ -23,6 +23,9 @@
 function main(name) {
   // [START dialogflow_v3_generated_Deployments_GetDeployment_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/deployments.list_deployments.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/deployments.list_deployments.js
index 8f39ef5fedf..159234e16ca 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/deployments.list_deployments.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/deployments.list_deployments.js
@@ -23,6 +23,9 @@
 function main(parent) {
   // [START dialogflow_v3_generated_Deployments_ListDeployments_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/entity_types.create_entity_type.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/entity_types.create_entity_type.js
index 1f874148485..4f52dfae232 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/entity_types.create_entity_type.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/entity_types.create_entity_type.js
@@ -23,6 +23,9 @@
 function main(parent, entityType) {
   // [START dialogflow_v3_generated_EntityTypes_CreateEntityType_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/entity_types.delete_entity_type.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/entity_types.delete_entity_type.js
index d2b1011bdb2..6f87a7105a8 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/entity_types.delete_entity_type.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/entity_types.delete_entity_type.js
@@ -23,6 +23,9 @@
 function main(name) {
   // [START dialogflow_v3_generated_EntityTypes_DeleteEntityType_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/entity_types.get_entity_type.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/entity_types.get_entity_type.js
index 4cf13524ade..32b72f8f5f9 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/entity_types.get_entity_type.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/entity_types.get_entity_type.js
@@ -23,6 +23,9 @@
 function main(name) {
   // [START dialogflow_v3_generated_EntityTypes_GetEntityType_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/entity_types.list_entity_types.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/entity_types.list_entity_types.js
index 843aa732bae..454acfdd9e3 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/entity_types.list_entity_types.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/entity_types.list_entity_types.js
@@ -23,6 +23,9 @@
 function main(parent) {
   // [START dialogflow_v3_generated_EntityTypes_ListEntityTypes_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/entity_types.update_entity_type.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/entity_types.update_entity_type.js
index 567407c0c50..ac5501159ba 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/entity_types.update_entity_type.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/entity_types.update_entity_type.js
@@ -23,6 +23,9 @@
 function main(entityType) {
   // [START dialogflow_v3_generated_EntityTypes_UpdateEntityType_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/environments.create_environment.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/environments.create_environment.js
index 4aca1be9a25..f0534fba051 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/environments.create_environment.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/environments.create_environment.js
@@ -23,6 +23,9 @@
 function main(parent, environment) {
   // [START dialogflow_v3_generated_Environments_CreateEnvironment_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/environments.delete_environment.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/environments.delete_environment.js
index 696ba089896..2b6c32597e1 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/environments.delete_environment.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/environments.delete_environment.js
@@ -23,6 +23,9 @@
 function main(name) {
   // [START dialogflow_v3_generated_Environments_DeleteEnvironment_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/environments.deploy_flow.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/environments.deploy_flow.js
index febe6b4a6ef..6806abf9cfc 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/environments.deploy_flow.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/environments.deploy_flow.js
@@ -23,6 +23,9 @@
 function main(environment, flowVersion) {
   // [START dialogflow_v3_generated_Environments_DeployFlow_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/environments.get_environment.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/environments.get_environment.js
index 2cc033bbf5f..2e0fb94e5d6 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/environments.get_environment.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/environments.get_environment.js
@@ -23,6 +23,9 @@
 function main(name) {
   // [START dialogflow_v3_generated_Environments_GetEnvironment_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/environments.list_continuous_test_results.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/environments.list_continuous_test_results.js
index b030e8c27ec..36e670920a7 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/environments.list_continuous_test_results.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/environments.list_continuous_test_results.js
@@ -23,6 +23,9 @@
 function main(parent) {
   // [START dialogflow_v3_generated_Environments_ListContinuousTestResults_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/environments.list_environments.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/environments.list_environments.js
index 3edc87b72e2..aab6e0a8194 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/environments.list_environments.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/environments.list_environments.js
@@ -23,6 +23,9 @@
 function main(parent) {
   // [START dialogflow_v3_generated_Environments_ListEnvironments_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/environments.lookup_environment_history.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/environments.lookup_environment_history.js
index dba4d1a521f..bb51596623c 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/environments.lookup_environment_history.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/environments.lookup_environment_history.js
@@ -23,6 +23,9 @@
 function main(name) {
   // [START dialogflow_v3_generated_Environments_LookupEnvironmentHistory_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/environments.run_continuous_test.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/environments.run_continuous_test.js
index 00dc041e632..a0c3b379dac 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/environments.run_continuous_test.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/environments.run_continuous_test.js
@@ -23,6 +23,9 @@
 function main(environment) {
   // [START dialogflow_v3_generated_Environments_RunContinuousTest_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/environments.update_environment.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/environments.update_environment.js
index 272649466f4..d95336609f3 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/environments.update_environment.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/environments.update_environment.js
@@ -23,6 +23,9 @@
 function main(environment, updateMask) {
   // [START dialogflow_v3_generated_Environments_UpdateEnvironment_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/experiments.create_experiment.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/experiments.create_experiment.js
index 468dd2f245a..90afa7ff930 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/experiments.create_experiment.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/experiments.create_experiment.js
@@ -23,6 +23,9 @@
 function main(parent, experiment) {
   // [START dialogflow_v3_generated_Experiments_CreateExperiment_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/experiments.delete_experiment.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/experiments.delete_experiment.js
index 27c6a8b20b1..b5c977c68b8 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/experiments.delete_experiment.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/experiments.delete_experiment.js
@@ -23,6 +23,9 @@
 function main(name) {
   // [START dialogflow_v3_generated_Experiments_DeleteExperiment_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/experiments.get_experiment.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/experiments.get_experiment.js
index 7df61c370e7..0c09e13fcee 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/experiments.get_experiment.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/experiments.get_experiment.js
@@ -23,6 +23,9 @@
 function main(name) {
   // [START dialogflow_v3_generated_Experiments_GetExperiment_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/experiments.list_experiments.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/experiments.list_experiments.js
index bf697de8b57..c4b02b66b9a 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/experiments.list_experiments.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/experiments.list_experiments.js
@@ -23,6 +23,9 @@
 function main(parent) {
   // [START dialogflow_v3_generated_Experiments_ListExperiments_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/experiments.start_experiment.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/experiments.start_experiment.js
index a2cb124b143..3e44e9d27eb 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/experiments.start_experiment.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/experiments.start_experiment.js
@@ -23,6 +23,9 @@
 function main(name) {
   // [START dialogflow_v3_generated_Experiments_StartExperiment_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/experiments.stop_experiment.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/experiments.stop_experiment.js
index ba594470a70..f1ab9f8dd1a 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/experiments.stop_experiment.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/experiments.stop_experiment.js
@@ -23,6 +23,9 @@
 function main(name) {
   // [START dialogflow_v3_generated_Experiments_StopExperiment_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/experiments.update_experiment.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/experiments.update_experiment.js
index 927188da563..c0d7855662d 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/experiments.update_experiment.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/experiments.update_experiment.js
@@ -23,6 +23,9 @@
 function main(experiment, updateMask) {
   // [START dialogflow_v3_generated_Experiments_UpdateExperiment_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/flows.create_flow.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/flows.create_flow.js
index 5eb34931089..543e87f6dbe 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/flows.create_flow.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/flows.create_flow.js
@@ -23,6 +23,9 @@
 function main(parent, flow) {
   // [START dialogflow_v3_generated_Flows_CreateFlow_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/flows.delete_flow.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/flows.delete_flow.js
index 5e88bfbc3fd..438ec439f9d 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/flows.delete_flow.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/flows.delete_flow.js
@@ -23,6 +23,9 @@
 function main(name) {
   // [START dialogflow_v3_generated_Flows_DeleteFlow_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/flows.export_flow.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/flows.export_flow.js
index dc6ad6cb991..c3cea86930a 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/flows.export_flow.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/flows.export_flow.js
@@ -23,6 +23,9 @@
 function main(name) {
   // [START dialogflow_v3_generated_Flows_ExportFlow_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/flows.get_flow.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/flows.get_flow.js
index f19e66ebcad..c067cf79eb2 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/flows.get_flow.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/flows.get_flow.js
@@ -23,6 +23,9 @@
 function main(name) {
   // [START dialogflow_v3_generated_Flows_GetFlow_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/flows.get_flow_validation_result.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/flows.get_flow_validation_result.js
index be625958792..9d34c29db6d 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/flows.get_flow_validation_result.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/flows.get_flow_validation_result.js
@@ -23,6 +23,9 @@
 function main(name) {
   // [START dialogflow_v3_generated_Flows_GetFlowValidationResult_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/flows.import_flow.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/flows.import_flow.js
index a283e263bb5..6fb24e55c23 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/flows.import_flow.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/flows.import_flow.js
@@ -23,6 +23,9 @@
 function main(parent) {
   // [START dialogflow_v3_generated_Flows_ImportFlow_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/flows.list_flows.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/flows.list_flows.js
index e3fd86fd6eb..192659ca3fa 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/flows.list_flows.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/flows.list_flows.js
@@ -23,6 +23,9 @@
 function main(parent) {
   // [START dialogflow_v3_generated_Flows_ListFlows_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/flows.train_flow.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/flows.train_flow.js
index d7853b73dbe..eb7bc7a23ac 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/flows.train_flow.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/flows.train_flow.js
@@ -23,6 +23,9 @@
 function main(name) {
   // [START dialogflow_v3_generated_Flows_TrainFlow_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/flows.update_flow.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/flows.update_flow.js
index 8b391f8adfe..bf593c75ec8 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/flows.update_flow.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/flows.update_flow.js
@@ -23,6 +23,9 @@
 function main(flow) {
   // [START dialogflow_v3_generated_Flows_UpdateFlow_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/flows.validate_flow.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/flows.validate_flow.js
index ba65eb690d1..66b5d9bf288 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/flows.validate_flow.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/flows.validate_flow.js
@@ -23,6 +23,9 @@
 function main(name) {
   // [START dialogflow_v3_generated_Flows_ValidateFlow_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/intents.create_intent.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/intents.create_intent.js
index bba81387e49..946e7adef38 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/intents.create_intent.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/intents.create_intent.js
@@ -23,6 +23,9 @@
 function main(parent, intent) {
   // [START dialogflow_v3_generated_Intents_CreateIntent_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/intents.delete_intent.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/intents.delete_intent.js
index aa63d2f995e..65a3032f6d5 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/intents.delete_intent.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/intents.delete_intent.js
@@ -23,6 +23,9 @@
 function main(name) {
   // [START dialogflow_v3_generated_Intents_DeleteIntent_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/intents.get_intent.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/intents.get_intent.js
index 14652ab92c4..722292fa185 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/intents.get_intent.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/intents.get_intent.js
@@ -23,6 +23,9 @@
 function main(name) {
   // [START dialogflow_v3_generated_Intents_GetIntent_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/intents.list_intents.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/intents.list_intents.js
index 59b84a4ed03..6c1cb1787fd 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/intents.list_intents.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/intents.list_intents.js
@@ -23,6 +23,9 @@
 function main(parent) {
   // [START dialogflow_v3_generated_Intents_ListIntents_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/intents.update_intent.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/intents.update_intent.js
index 2071272ac32..bd87f38f391 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/intents.update_intent.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/intents.update_intent.js
@@ -23,6 +23,9 @@
 function main(intent) {
   // [START dialogflow_v3_generated_Intents_UpdateIntent_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/pages.create_page.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/pages.create_page.js
index f1fd0cd6b95..0b9d9431b64 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/pages.create_page.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/pages.create_page.js
@@ -23,6 +23,9 @@
 function main(parent, page) {
   // [START dialogflow_v3_generated_Pages_CreatePage_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/pages.delete_page.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/pages.delete_page.js
index f28e94e2fa1..731024727c5 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/pages.delete_page.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/pages.delete_page.js
@@ -23,6 +23,9 @@
 function main(name) {
   // [START dialogflow_v3_generated_Pages_DeletePage_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/pages.get_page.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/pages.get_page.js
index f23532102ac..371c9d6b3c9 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/pages.get_page.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/pages.get_page.js
@@ -23,6 +23,9 @@
 function main(name) {
   // [START dialogflow_v3_generated_Pages_GetPage_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/pages.list_pages.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/pages.list_pages.js
index be8aa40ca7d..7d559331d19 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/pages.list_pages.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/pages.list_pages.js
@@ -23,6 +23,9 @@
 function main(parent) {
   // [START dialogflow_v3_generated_Pages_ListPages_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/pages.update_page.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/pages.update_page.js
index eee960345a7..dd11b1dbfc0 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/pages.update_page.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/pages.update_page.js
@@ -23,6 +23,9 @@
 function main(page) {
   // [START dialogflow_v3_generated_Pages_UpdatePage_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/security_settings_service.create_security_settings.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/security_settings_service.create_security_settings.js
index 92cf3f66ab7..2a02371bb0b 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/security_settings_service.create_security_settings.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/security_settings_service.create_security_settings.js
@@ -23,6 +23,9 @@
 function main(parent, securitySettings) {
   // [START dialogflow_v3_generated_SecuritySettingsService_CreateSecuritySettings_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/security_settings_service.delete_security_settings.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/security_settings_service.delete_security_settings.js
index 92b2c173d06..28e8bc06424 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/security_settings_service.delete_security_settings.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/security_settings_service.delete_security_settings.js
@@ -23,6 +23,9 @@
 function main(name) {
   // [START dialogflow_v3_generated_SecuritySettingsService_DeleteSecuritySettings_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/security_settings_service.get_security_settings.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/security_settings_service.get_security_settings.js
index 0d9f5488e1c..6311455610d 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/security_settings_service.get_security_settings.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/security_settings_service.get_security_settings.js
@@ -23,6 +23,9 @@
 function main(name) {
   // [START dialogflow_v3_generated_SecuritySettingsService_GetSecuritySettings_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/security_settings_service.list_security_settings.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/security_settings_service.list_security_settings.js
index afb9570f5dc..510fc9ae609 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/security_settings_service.list_security_settings.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/security_settings_service.list_security_settings.js
@@ -23,6 +23,9 @@
 function main(parent) {
   // [START dialogflow_v3_generated_SecuritySettingsService_ListSecuritySettings_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/security_settings_service.update_security_settings.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/security_settings_service.update_security_settings.js
index 0c67b0c81b4..9aafb91571d 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/security_settings_service.update_security_settings.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/security_settings_service.update_security_settings.js
@@ -23,6 +23,9 @@
 function main(securitySettings, updateMask) {
   // [START dialogflow_v3_generated_SecuritySettingsService_UpdateSecuritySettings_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/session_entity_types.create_session_entity_type.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/session_entity_types.create_session_entity_type.js
index 620588dc02f..36acc528869 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/session_entity_types.create_session_entity_type.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/session_entity_types.create_session_entity_type.js
@@ -23,6 +23,9 @@
 function main(parent, sessionEntityType) {
   // [START dialogflow_v3_generated_SessionEntityTypes_CreateSessionEntityType_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/session_entity_types.delete_session_entity_type.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/session_entity_types.delete_session_entity_type.js
index 3eed3a68487..d3faf189ce8 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/session_entity_types.delete_session_entity_type.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/session_entity_types.delete_session_entity_type.js
@@ -23,6 +23,9 @@
 function main(name) {
   // [START dialogflow_v3_generated_SessionEntityTypes_DeleteSessionEntityType_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/session_entity_types.get_session_entity_type.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/session_entity_types.get_session_entity_type.js
index 0c07726190a..e16ac97bab1 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/session_entity_types.get_session_entity_type.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/session_entity_types.get_session_entity_type.js
@@ -23,6 +23,9 @@
 function main(name) {
   // [START dialogflow_v3_generated_SessionEntityTypes_GetSessionEntityType_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/session_entity_types.list_session_entity_types.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/session_entity_types.list_session_entity_types.js
index 9541e20083e..f3c22923008 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/session_entity_types.list_session_entity_types.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/session_entity_types.list_session_entity_types.js
@@ -23,6 +23,9 @@
 function main(parent) {
   // [START dialogflow_v3_generated_SessionEntityTypes_ListSessionEntityTypes_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/session_entity_types.update_session_entity_type.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/session_entity_types.update_session_entity_type.js
index 61d622395ca..dbeba79684d 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/session_entity_types.update_session_entity_type.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/session_entity_types.update_session_entity_type.js
@@ -23,6 +23,9 @@
 function main(sessionEntityType) {
   // [START dialogflow_v3_generated_SessionEntityTypes_UpdateSessionEntityType_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/sessions.detect_intent.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/sessions.detect_intent.js
index 701f00431d9..b377084e78f 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/sessions.detect_intent.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/sessions.detect_intent.js
@@ -23,6 +23,9 @@
 function main(session, queryInput) {
   // [START dialogflow_v3_generated_Sessions_DetectIntent_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/sessions.fulfill_intent.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/sessions.fulfill_intent.js
index 717d5bce917..e4510801ec7 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/sessions.fulfill_intent.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/sessions.fulfill_intent.js
@@ -23,6 +23,9 @@
 function main() {
   // [START dialogflow_v3_generated_Sessions_FulfillIntent_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/sessions.match_intent.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/sessions.match_intent.js
index 083ad12c7d4..2ddb38480a6 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/sessions.match_intent.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/sessions.match_intent.js
@@ -23,6 +23,9 @@
 function main(session, queryInput) {
   // [START dialogflow_v3_generated_Sessions_MatchIntent_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/sessions.streaming_detect_intent.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/sessions.streaming_detect_intent.js
index 7334a8e9a2c..5e0173aa8cc 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/sessions.streaming_detect_intent.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/sessions.streaming_detect_intent.js
@@ -23,6 +23,9 @@
 function main(queryInput) {
   // [START dialogflow_v3_generated_Sessions_StreamingDetectIntent_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/snippet_metadata.google.cloud.dialogflow.cx.v3.json b/packages/google-cloud-dialogflow-cx/samples/generated/v3/snippet_metadata.google.cloud.dialogflow.cx.v3.json
index 73f16e8cefb..628c40748af 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/snippet_metadata.google.cloud.dialogflow.cx.v3.json
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diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/test_cases.batch_delete_test_cases.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/test_cases.batch_delete_test_cases.js
index 0c9177e2586..9a693427489 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/test_cases.batch_delete_test_cases.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/test_cases.batch_delete_test_cases.js
@@ -23,6 +23,9 @@
 function main(parent, names) {
   // [START dialogflow_v3_generated_TestCases_BatchDeleteTestCases_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/test_cases.batch_run_test_cases.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/test_cases.batch_run_test_cases.js
index f0a15bc26b3..d64aa0779de 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/test_cases.batch_run_test_cases.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/test_cases.batch_run_test_cases.js
@@ -23,6 +23,9 @@
 function main(parent, testCases) {
   // [START dialogflow_v3_generated_TestCases_BatchRunTestCases_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/test_cases.calculate_coverage.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/test_cases.calculate_coverage.js
index ce077bb44de..c6ab071cb58 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/test_cases.calculate_coverage.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/test_cases.calculate_coverage.js
@@ -23,6 +23,9 @@
 function main(agent, type) {
   // [START dialogflow_v3_generated_TestCases_CalculateCoverage_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/test_cases.create_test_case.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/test_cases.create_test_case.js
index 60a2d331076..1afb269c8d7 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/test_cases.create_test_case.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/test_cases.create_test_case.js
@@ -23,6 +23,9 @@
 function main(parent, testCase) {
   // [START dialogflow_v3_generated_TestCases_CreateTestCase_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/test_cases.export_test_cases.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/test_cases.export_test_cases.js
index 4443f8a92a0..9a853a9834e 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/test_cases.export_test_cases.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/test_cases.export_test_cases.js
@@ -23,6 +23,9 @@
 function main(parent) {
   // [START dialogflow_v3_generated_TestCases_ExportTestCases_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/test_cases.get_test_case.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/test_cases.get_test_case.js
index c727e27e996..22386f7846c 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/test_cases.get_test_case.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/test_cases.get_test_case.js
@@ -23,6 +23,9 @@
 function main(name) {
   // [START dialogflow_v3_generated_TestCases_GetTestCase_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/test_cases.get_test_case_result.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/test_cases.get_test_case_result.js
index 487fefe3c01..f335ad62f2b 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/test_cases.get_test_case_result.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/test_cases.get_test_case_result.js
@@ -23,6 +23,9 @@
 function main(name) {
   // [START dialogflow_v3_generated_TestCases_GetTestCaseResult_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/test_cases.import_test_cases.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/test_cases.import_test_cases.js
index ef61a4aae65..35bbd5946b3 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/test_cases.import_test_cases.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/test_cases.import_test_cases.js
@@ -23,6 +23,9 @@
 function main(parent) {
   // [START dialogflow_v3_generated_TestCases_ImportTestCases_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/test_cases.list_test_case_results.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/test_cases.list_test_case_results.js
index e3d0f298e97..f31d96486b8 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/test_cases.list_test_case_results.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/test_cases.list_test_case_results.js
@@ -23,6 +23,9 @@
 function main(parent) {
   // [START dialogflow_v3_generated_TestCases_ListTestCaseResults_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/test_cases.list_test_cases.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/test_cases.list_test_cases.js
index f35e2ec6604..3467f5ad477 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/test_cases.list_test_cases.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/test_cases.list_test_cases.js
@@ -23,6 +23,9 @@
 function main(parent) {
   // [START dialogflow_v3_generated_TestCases_ListTestCases_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/test_cases.run_test_case.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/test_cases.run_test_case.js
index fc3f4b226d5..c8528cc0cac 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/test_cases.run_test_case.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/test_cases.run_test_case.js
@@ -23,6 +23,9 @@
 function main(name) {
   // [START dialogflow_v3_generated_TestCases_RunTestCase_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/test_cases.update_test_case.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/test_cases.update_test_case.js
index be671a8ca0b..67f8c0c23c7 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/test_cases.update_test_case.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/test_cases.update_test_case.js
@@ -23,6 +23,9 @@
 function main(testCase, updateMask) {
   // [START dialogflow_v3_generated_TestCases_UpdateTestCase_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/transition_route_groups.create_transition_route_group.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/transition_route_groups.create_transition_route_group.js
index f57f7151252..fe335428d7a 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/transition_route_groups.create_transition_route_group.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/transition_route_groups.create_transition_route_group.js
@@ -23,6 +23,9 @@
 function main(parent, transitionRouteGroup) {
   // [START dialogflow_v3_generated_TransitionRouteGroups_CreateTransitionRouteGroup_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/transition_route_groups.delete_transition_route_group.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/transition_route_groups.delete_transition_route_group.js
index e559e2998e9..9b54a3dc41b 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/transition_route_groups.delete_transition_route_group.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/transition_route_groups.delete_transition_route_group.js
@@ -23,6 +23,9 @@
 function main(name) {
   // [START dialogflow_v3_generated_TransitionRouteGroups_DeleteTransitionRouteGroup_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/transition_route_groups.get_transition_route_group.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/transition_route_groups.get_transition_route_group.js
index 3175e25632d..e7bead1dc3a 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/transition_route_groups.get_transition_route_group.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/transition_route_groups.get_transition_route_group.js
@@ -23,6 +23,9 @@
 function main(name) {
   // [START dialogflow_v3_generated_TransitionRouteGroups_GetTransitionRouteGroup_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/transition_route_groups.list_transition_route_groups.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/transition_route_groups.list_transition_route_groups.js
index 4f88664fc71..2ce31c19fc8 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/transition_route_groups.list_transition_route_groups.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/transition_route_groups.list_transition_route_groups.js
@@ -23,6 +23,9 @@
 function main(parent) {
   // [START dialogflow_v3_generated_TransitionRouteGroups_ListTransitionRouteGroups_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/transition_route_groups.update_transition_route_group.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/transition_route_groups.update_transition_route_group.js
index 94893abae49..79fc11469fe 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/transition_route_groups.update_transition_route_group.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/transition_route_groups.update_transition_route_group.js
@@ -23,6 +23,9 @@
 function main(transitionRouteGroup) {
   // [START dialogflow_v3_generated_TransitionRouteGroups_UpdateTransitionRouteGroup_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/versions.compare_versions.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/versions.compare_versions.js
index a9b6ba31640..1a8090c4f03 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/versions.compare_versions.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/versions.compare_versions.js
@@ -23,6 +23,9 @@
 function main(baseVersion, targetVersion) {
   // [START dialogflow_v3_generated_Versions_CompareVersions_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/versions.create_version.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/versions.create_version.js
index d02e0a38964..c656857a662 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/versions.create_version.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/versions.create_version.js
@@ -23,6 +23,9 @@
 function main(parent, version) {
   // [START dialogflow_v3_generated_Versions_CreateVersion_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/versions.delete_version.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/versions.delete_version.js
index b157b3940f4..90fefa3634a 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/versions.delete_version.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/versions.delete_version.js
@@ -23,6 +23,9 @@
 function main(name) {
   // [START dialogflow_v3_generated_Versions_DeleteVersion_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/versions.get_version.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/versions.get_version.js
index 2ab111269ca..79471b24038 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/versions.get_version.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/versions.get_version.js
@@ -23,6 +23,9 @@
 function main(name) {
   // [START dialogflow_v3_generated_Versions_GetVersion_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/versions.list_versions.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/versions.list_versions.js
index 1a30032db89..93c2142b33e 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/versions.list_versions.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/versions.list_versions.js
@@ -23,6 +23,9 @@
 function main(parent) {
   // [START dialogflow_v3_generated_Versions_ListVersions_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/versions.load_version.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/versions.load_version.js
index 59435a4293b..644915513fa 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/versions.load_version.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/versions.load_version.js
@@ -23,6 +23,9 @@
 function main(name) {
   // [START dialogflow_v3_generated_Versions_LoadVersion_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/versions.update_version.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/versions.update_version.js
index 9613f3281c6..26dfc8c197b 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/versions.update_version.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/versions.update_version.js
@@ -23,6 +23,9 @@
 function main(version, updateMask) {
   // [START dialogflow_v3_generated_Versions_UpdateVersion_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/webhooks.create_webhook.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/webhooks.create_webhook.js
index e3ae9655b6c..f32b855e095 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/webhooks.create_webhook.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/webhooks.create_webhook.js
@@ -23,6 +23,9 @@
 function main(parent, webhook) {
   // [START dialogflow_v3_generated_Webhooks_CreateWebhook_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/webhooks.delete_webhook.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/webhooks.delete_webhook.js
index 9972c7e221e..d6edef52b47 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/webhooks.delete_webhook.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/webhooks.delete_webhook.js
@@ -23,6 +23,9 @@
 function main(name) {
   // [START dialogflow_v3_generated_Webhooks_DeleteWebhook_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/webhooks.get_webhook.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/webhooks.get_webhook.js
index 2c18d509ca5..1b919a8b1e0 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/webhooks.get_webhook.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/webhooks.get_webhook.js
@@ -23,6 +23,9 @@
 function main(name) {
   // [START dialogflow_v3_generated_Webhooks_GetWebhook_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/webhooks.list_webhooks.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/webhooks.list_webhooks.js
index 3ced6d4da8f..7a3f804dbee 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/webhooks.list_webhooks.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/webhooks.list_webhooks.js
@@ -23,6 +23,9 @@
 function main(parent) {
   // [START dialogflow_v3_generated_Webhooks_ListWebhooks_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/webhooks.update_webhook.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3/webhooks.update_webhook.js
index 5682045b86a..6ea85dcb006 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/webhooks.update_webhook.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/webhooks.update_webhook.js
@@ -23,6 +23,9 @@
 function main(webhook) {
   // [START dialogflow_v3_generated_Webhooks_UpdateWebhook_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/agents.create_agent.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/agents.create_agent.js
index 2b73ce0007b..2ef0c379253 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/agents.create_agent.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/agents.create_agent.js
@@ -23,6 +23,9 @@
 function main(parent, agent) {
   // [START dialogflow_v3beta1_generated_Agents_CreateAgent_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/agents.delete_agent.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/agents.delete_agent.js
index 7dc94aea997..3488c60a865 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/agents.delete_agent.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/agents.delete_agent.js
@@ -23,6 +23,9 @@
 function main(name) {
   // [START dialogflow_v3beta1_generated_Agents_DeleteAgent_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/agents.export_agent.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/agents.export_agent.js
index 176a83de19c..d88b214d1ef 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/agents.export_agent.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/agents.export_agent.js
@@ -23,6 +23,9 @@
 function main(name) {
   // [START dialogflow_v3beta1_generated_Agents_ExportAgent_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/agents.get_agent.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/agents.get_agent.js
index a7ac79ed1d3..5d51d5af618 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/agents.get_agent.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/agents.get_agent.js
@@ -23,6 +23,9 @@
 function main(name) {
   // [START dialogflow_v3beta1_generated_Agents_GetAgent_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/agents.get_agent_validation_result.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/agents.get_agent_validation_result.js
index a1f6ccbfb52..1eabe96534c 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/agents.get_agent_validation_result.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/agents.get_agent_validation_result.js
@@ -23,6 +23,9 @@
 function main(name) {
   // [START dialogflow_v3beta1_generated_Agents_GetAgentValidationResult_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/agents.list_agents.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/agents.list_agents.js
index d99912589fc..347505d511f 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/agents.list_agents.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/agents.list_agents.js
@@ -23,6 +23,9 @@
 function main(parent) {
   // [START dialogflow_v3beta1_generated_Agents_ListAgents_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/agents.restore_agent.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/agents.restore_agent.js
index cb0ed139742..e25f26bb898 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/agents.restore_agent.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/agents.restore_agent.js
@@ -23,6 +23,9 @@
 function main(name) {
   // [START dialogflow_v3beta1_generated_Agents_RestoreAgent_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/agents.update_agent.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/agents.update_agent.js
index 92b2527b5ad..811fd5a9432 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/agents.update_agent.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/agents.update_agent.js
@@ -23,6 +23,9 @@
 function main(agent) {
   // [START dialogflow_v3beta1_generated_Agents_UpdateAgent_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/agents.validate_agent.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/agents.validate_agent.js
index 6a9c7d9de51..3b106db3530 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/agents.validate_agent.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/agents.validate_agent.js
@@ -23,6 +23,9 @@
 function main(name) {
   // [START dialogflow_v3beta1_generated_Agents_ValidateAgent_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/changelogs.get_changelog.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/changelogs.get_changelog.js
index 784fd0c8c5c..44e6f03e429 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/changelogs.get_changelog.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/changelogs.get_changelog.js
@@ -23,6 +23,9 @@
 function main(name) {
   // [START dialogflow_v3beta1_generated_Changelogs_GetChangelog_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/changelogs.list_changelogs.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/changelogs.list_changelogs.js
index b51b71da430..e045559fcfe 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/changelogs.list_changelogs.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/changelogs.list_changelogs.js
@@ -23,6 +23,9 @@
 function main(parent) {
   // [START dialogflow_v3beta1_generated_Changelogs_ListChangelogs_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/deployments.get_deployment.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/deployments.get_deployment.js
index 101f7da0a82..87edcc8d827 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/deployments.get_deployment.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/deployments.get_deployment.js
@@ -23,6 +23,9 @@
 function main(name) {
   // [START dialogflow_v3beta1_generated_Deployments_GetDeployment_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/deployments.list_deployments.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/deployments.list_deployments.js
index 57c66710726..0a529ad9e08 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/deployments.list_deployments.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/deployments.list_deployments.js
@@ -23,6 +23,9 @@
 function main(parent) {
   // [START dialogflow_v3beta1_generated_Deployments_ListDeployments_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/entity_types.create_entity_type.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/entity_types.create_entity_type.js
index 108a6b94a33..541c6bb072c 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/entity_types.create_entity_type.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/entity_types.create_entity_type.js
@@ -23,6 +23,9 @@
 function main(parent, entityType) {
   // [START dialogflow_v3beta1_generated_EntityTypes_CreateEntityType_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/entity_types.delete_entity_type.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/entity_types.delete_entity_type.js
index f228608c535..8382ebb37ce 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/entity_types.delete_entity_type.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/entity_types.delete_entity_type.js
@@ -23,6 +23,9 @@
 function main(name) {
   // [START dialogflow_v3beta1_generated_EntityTypes_DeleteEntityType_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/entity_types.get_entity_type.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/entity_types.get_entity_type.js
index f9df9000820..41ad8df208f 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/entity_types.get_entity_type.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/entity_types.get_entity_type.js
@@ -23,6 +23,9 @@
 function main(name) {
   // [START dialogflow_v3beta1_generated_EntityTypes_GetEntityType_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/entity_types.list_entity_types.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/entity_types.list_entity_types.js
index 95fb79d6a4b..7732bf928f5 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/entity_types.list_entity_types.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/entity_types.list_entity_types.js
@@ -23,6 +23,9 @@
 function main(parent) {
   // [START dialogflow_v3beta1_generated_EntityTypes_ListEntityTypes_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/entity_types.update_entity_type.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/entity_types.update_entity_type.js
index 26a0a957f6d..17ce2eb89e1 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/entity_types.update_entity_type.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/entity_types.update_entity_type.js
@@ -23,6 +23,9 @@
 function main(entityType) {
   // [START dialogflow_v3beta1_generated_EntityTypes_UpdateEntityType_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/environments.create_environment.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/environments.create_environment.js
index 1aad4e3ae8d..f20ceae9f9c 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/environments.create_environment.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/environments.create_environment.js
@@ -23,6 +23,9 @@
 function main(parent, environment) {
   // [START dialogflow_v3beta1_generated_Environments_CreateEnvironment_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/environments.delete_environment.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/environments.delete_environment.js
index b15cec8ff1d..3969d1544fb 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/environments.delete_environment.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/environments.delete_environment.js
@@ -23,6 +23,9 @@
 function main(name) {
   // [START dialogflow_v3beta1_generated_Environments_DeleteEnvironment_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/environments.deploy_flow.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/environments.deploy_flow.js
index e4f42592c55..918d0f66698 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/environments.deploy_flow.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/environments.deploy_flow.js
@@ -23,6 +23,9 @@
 function main(environment, flowVersion) {
   // [START dialogflow_v3beta1_generated_Environments_DeployFlow_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/environments.get_environment.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/environments.get_environment.js
index 6ae39466399..a8293d032d1 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/environments.get_environment.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/environments.get_environment.js
@@ -23,6 +23,9 @@
 function main(name) {
   // [START dialogflow_v3beta1_generated_Environments_GetEnvironment_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/environments.list_continuous_test_results.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/environments.list_continuous_test_results.js
index de0e552c807..da5f6b1640d 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/environments.list_continuous_test_results.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/environments.list_continuous_test_results.js
@@ -23,6 +23,9 @@
 function main(parent) {
   // [START dialogflow_v3beta1_generated_Environments_ListContinuousTestResults_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/environments.list_environments.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/environments.list_environments.js
index bb76daf0cbc..2468e2dac23 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/environments.list_environments.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/environments.list_environments.js
@@ -23,6 +23,9 @@
 function main(parent) {
   // [START dialogflow_v3beta1_generated_Environments_ListEnvironments_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/environments.lookup_environment_history.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/environments.lookup_environment_history.js
index 35ca9e2faa9..45fd61ac314 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/environments.lookup_environment_history.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/environments.lookup_environment_history.js
@@ -23,6 +23,9 @@
 function main(name) {
   // [START dialogflow_v3beta1_generated_Environments_LookupEnvironmentHistory_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/environments.run_continuous_test.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/environments.run_continuous_test.js
index d83ddcbca4a..819da4ce441 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/environments.run_continuous_test.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/environments.run_continuous_test.js
@@ -23,6 +23,9 @@
 function main(environment) {
   // [START dialogflow_v3beta1_generated_Environments_RunContinuousTest_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/environments.update_environment.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/environments.update_environment.js
index 68ae61e2074..7398cb6c2a2 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/environments.update_environment.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/environments.update_environment.js
@@ -23,6 +23,9 @@
 function main(environment, updateMask) {
   // [START dialogflow_v3beta1_generated_Environments_UpdateEnvironment_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/experiments.create_experiment.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/experiments.create_experiment.js
index 37e1c6ba8db..42bc0f29a06 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/experiments.create_experiment.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/experiments.create_experiment.js
@@ -23,6 +23,9 @@
 function main(parent, experiment) {
   // [START dialogflow_v3beta1_generated_Experiments_CreateExperiment_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/experiments.delete_experiment.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/experiments.delete_experiment.js
index c4c0eb778ac..dab0c690705 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/experiments.delete_experiment.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/experiments.delete_experiment.js
@@ -23,6 +23,9 @@
 function main(name) {
   // [START dialogflow_v3beta1_generated_Experiments_DeleteExperiment_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/experiments.get_experiment.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/experiments.get_experiment.js
index e852f48404d..c8561a462c3 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/experiments.get_experiment.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/experiments.get_experiment.js
@@ -23,6 +23,9 @@
 function main(name) {
   // [START dialogflow_v3beta1_generated_Experiments_GetExperiment_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/experiments.list_experiments.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/experiments.list_experiments.js
index 703f4b9fadb..900991b8f14 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/experiments.list_experiments.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/experiments.list_experiments.js
@@ -23,6 +23,9 @@
 function main(parent) {
   // [START dialogflow_v3beta1_generated_Experiments_ListExperiments_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/experiments.start_experiment.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/experiments.start_experiment.js
index 5d4f076cce8..3a4b9f05ba5 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/experiments.start_experiment.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/experiments.start_experiment.js
@@ -23,6 +23,9 @@
 function main(name) {
   // [START dialogflow_v3beta1_generated_Experiments_StartExperiment_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/experiments.stop_experiment.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/experiments.stop_experiment.js
index 32f08dc7612..a9be3837053 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/experiments.stop_experiment.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/experiments.stop_experiment.js
@@ -23,6 +23,9 @@
 function main(name) {
   // [START dialogflow_v3beta1_generated_Experiments_StopExperiment_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/experiments.update_experiment.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/experiments.update_experiment.js
index 06c0bd87568..41ee943df77 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/experiments.update_experiment.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/experiments.update_experiment.js
@@ -23,6 +23,9 @@
 function main(experiment, updateMask) {
   // [START dialogflow_v3beta1_generated_Experiments_UpdateExperiment_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/flows.create_flow.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/flows.create_flow.js
index 7320abb712d..5294d656570 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/flows.create_flow.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/flows.create_flow.js
@@ -23,6 +23,9 @@
 function main(parent, flow) {
   // [START dialogflow_v3beta1_generated_Flows_CreateFlow_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/flows.delete_flow.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/flows.delete_flow.js
index 9b1296c7344..7689c861d48 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/flows.delete_flow.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/flows.delete_flow.js
@@ -23,6 +23,9 @@
 function main(name) {
   // [START dialogflow_v3beta1_generated_Flows_DeleteFlow_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/flows.export_flow.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/flows.export_flow.js
index 1aca67f274d..872d3a459e2 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/flows.export_flow.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/flows.export_flow.js
@@ -23,6 +23,9 @@
 function main(name) {
   // [START dialogflow_v3beta1_generated_Flows_ExportFlow_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/flows.get_flow.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/flows.get_flow.js
index a021c7b4dc0..13d4d282222 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/flows.get_flow.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/flows.get_flow.js
@@ -23,6 +23,9 @@
 function main(name) {
   // [START dialogflow_v3beta1_generated_Flows_GetFlow_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/flows.get_flow_validation_result.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/flows.get_flow_validation_result.js
index e6aabf425e2..2c64af1a6f2 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/flows.get_flow_validation_result.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/flows.get_flow_validation_result.js
@@ -23,6 +23,9 @@
 function main(name) {
   // [START dialogflow_v3beta1_generated_Flows_GetFlowValidationResult_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/flows.import_flow.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/flows.import_flow.js
index d3f827b0540..a63deb3e59c 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/flows.import_flow.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/flows.import_flow.js
@@ -23,6 +23,9 @@
 function main(parent) {
   // [START dialogflow_v3beta1_generated_Flows_ImportFlow_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/flows.list_flows.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/flows.list_flows.js
index f537206afba..34c99aba733 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/flows.list_flows.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/flows.list_flows.js
@@ -23,6 +23,9 @@
 function main(parent) {
   // [START dialogflow_v3beta1_generated_Flows_ListFlows_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/flows.train_flow.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/flows.train_flow.js
index ca12c2b48b5..ec85defe823 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/flows.train_flow.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/flows.train_flow.js
@@ -23,6 +23,9 @@
 function main(name) {
   // [START dialogflow_v3beta1_generated_Flows_TrainFlow_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/flows.update_flow.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/flows.update_flow.js
index 6c9119b86b3..caac92dcca7 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/flows.update_flow.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/flows.update_flow.js
@@ -23,6 +23,9 @@
 function main(flow) {
   // [START dialogflow_v3beta1_generated_Flows_UpdateFlow_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/flows.validate_flow.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/flows.validate_flow.js
index 583692ef4c3..cf3a1e86d6f 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/flows.validate_flow.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/flows.validate_flow.js
@@ -23,6 +23,9 @@
 function main(name) {
   // [START dialogflow_v3beta1_generated_Flows_ValidateFlow_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/intents.create_intent.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/intents.create_intent.js
index c317951c788..5917cf8de8e 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/intents.create_intent.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/intents.create_intent.js
@@ -23,6 +23,9 @@
 function main(parent, intent) {
   // [START dialogflow_v3beta1_generated_Intents_CreateIntent_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/intents.delete_intent.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/intents.delete_intent.js
index 26644e8822a..3b0e6126b8f 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/intents.delete_intent.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/intents.delete_intent.js
@@ -23,6 +23,9 @@
 function main(name) {
   // [START dialogflow_v3beta1_generated_Intents_DeleteIntent_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/intents.get_intent.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/intents.get_intent.js
index 5b10d23386b..af6faacb547 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/intents.get_intent.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/intents.get_intent.js
@@ -23,6 +23,9 @@
 function main(name) {
   // [START dialogflow_v3beta1_generated_Intents_GetIntent_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/intents.list_intents.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/intents.list_intents.js
index 3ea6385ae38..4c65299731a 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/intents.list_intents.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/intents.list_intents.js
@@ -23,6 +23,9 @@
 function main(parent) {
   // [START dialogflow_v3beta1_generated_Intents_ListIntents_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/intents.update_intent.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/intents.update_intent.js
index 072cdb2e4b2..7fc906a685d 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/intents.update_intent.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/intents.update_intent.js
@@ -23,6 +23,9 @@
 function main(intent) {
   // [START dialogflow_v3beta1_generated_Intents_UpdateIntent_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/pages.create_page.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/pages.create_page.js
index 129c2d0c56e..5913d58abe3 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/pages.create_page.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/pages.create_page.js
@@ -23,6 +23,9 @@
 function main(parent, page) {
   // [START dialogflow_v3beta1_generated_Pages_CreatePage_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/pages.delete_page.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/pages.delete_page.js
index b9518a11323..a38b3a7af1f 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/pages.delete_page.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/pages.delete_page.js
@@ -23,6 +23,9 @@
 function main(name) {
   // [START dialogflow_v3beta1_generated_Pages_DeletePage_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/pages.get_page.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/pages.get_page.js
index edc49b4e1e6..446f2100aee 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/pages.get_page.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/pages.get_page.js
@@ -23,6 +23,9 @@
 function main(name) {
   // [START dialogflow_v3beta1_generated_Pages_GetPage_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/pages.list_pages.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/pages.list_pages.js
index cf05426f5af..676516596e0 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/pages.list_pages.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/pages.list_pages.js
@@ -23,6 +23,9 @@
 function main(parent) {
   // [START dialogflow_v3beta1_generated_Pages_ListPages_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/pages.update_page.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/pages.update_page.js
index 0422cf6a797..3fa68b3ff71 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/pages.update_page.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/pages.update_page.js
@@ -23,6 +23,9 @@
 function main(page) {
   // [START dialogflow_v3beta1_generated_Pages_UpdatePage_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/security_settings_service.create_security_settings.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/security_settings_service.create_security_settings.js
index 0dc6615ac57..7958cc0524e 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/security_settings_service.create_security_settings.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/security_settings_service.create_security_settings.js
@@ -23,6 +23,9 @@
 function main(parent, securitySettings) {
   // [START dialogflow_v3beta1_generated_SecuritySettingsService_CreateSecuritySettings_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/security_settings_service.delete_security_settings.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/security_settings_service.delete_security_settings.js
index 6912ba44e80..4d3273893cf 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/security_settings_service.delete_security_settings.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/security_settings_service.delete_security_settings.js
@@ -23,6 +23,9 @@
 function main(name) {
   // [START dialogflow_v3beta1_generated_SecuritySettingsService_DeleteSecuritySettings_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/security_settings_service.get_security_settings.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/security_settings_service.get_security_settings.js
index 5a5a1defecc..56ba230af90 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/security_settings_service.get_security_settings.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/security_settings_service.get_security_settings.js
@@ -23,6 +23,9 @@
 function main(name) {
   // [START dialogflow_v3beta1_generated_SecuritySettingsService_GetSecuritySettings_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/security_settings_service.list_security_settings.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/security_settings_service.list_security_settings.js
index 3ee2910a258..442693ad30c 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/security_settings_service.list_security_settings.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/security_settings_service.list_security_settings.js
@@ -23,6 +23,9 @@
 function main(parent) {
   // [START dialogflow_v3beta1_generated_SecuritySettingsService_ListSecuritySettings_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/security_settings_service.update_security_settings.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/security_settings_service.update_security_settings.js
index 172f076f84a..b93dadf9fbb 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/security_settings_service.update_security_settings.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/security_settings_service.update_security_settings.js
@@ -23,6 +23,9 @@
 function main(securitySettings, updateMask) {
   // [START dialogflow_v3beta1_generated_SecuritySettingsService_UpdateSecuritySettings_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/session_entity_types.create_session_entity_type.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/session_entity_types.create_session_entity_type.js
index 4b0f771e6e2..06ca0d1967c 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/session_entity_types.create_session_entity_type.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/session_entity_types.create_session_entity_type.js
@@ -23,6 +23,9 @@
 function main(parent, sessionEntityType) {
   // [START dialogflow_v3beta1_generated_SessionEntityTypes_CreateSessionEntityType_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/session_entity_types.delete_session_entity_type.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/session_entity_types.delete_session_entity_type.js
index 49e3ca870b8..0729ff517c4 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/session_entity_types.delete_session_entity_type.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/session_entity_types.delete_session_entity_type.js
@@ -23,6 +23,9 @@
 function main(name) {
   // [START dialogflow_v3beta1_generated_SessionEntityTypes_DeleteSessionEntityType_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/session_entity_types.get_session_entity_type.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/session_entity_types.get_session_entity_type.js
index 0009b7d185d..d90e492df99 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/session_entity_types.get_session_entity_type.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/session_entity_types.get_session_entity_type.js
@@ -23,6 +23,9 @@
 function main(name) {
   // [START dialogflow_v3beta1_generated_SessionEntityTypes_GetSessionEntityType_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/session_entity_types.list_session_entity_types.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/session_entity_types.list_session_entity_types.js
index bd52810d128..e6b5a2f07e7 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/session_entity_types.list_session_entity_types.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/session_entity_types.list_session_entity_types.js
@@ -23,6 +23,9 @@
 function main(parent) {
   // [START dialogflow_v3beta1_generated_SessionEntityTypes_ListSessionEntityTypes_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/session_entity_types.update_session_entity_type.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/session_entity_types.update_session_entity_type.js
index de8d4e171b1..410a54d2abe 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/session_entity_types.update_session_entity_type.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/session_entity_types.update_session_entity_type.js
@@ -23,6 +23,9 @@
 function main(sessionEntityType) {
   // [START dialogflow_v3beta1_generated_SessionEntityTypes_UpdateSessionEntityType_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/sessions.detect_intent.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/sessions.detect_intent.js
index 236b36b558b..756705caf54 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/sessions.detect_intent.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/sessions.detect_intent.js
@@ -23,6 +23,9 @@
 function main(session, queryInput) {
   // [START dialogflow_v3beta1_generated_Sessions_DetectIntent_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/sessions.fulfill_intent.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/sessions.fulfill_intent.js
index f91979b9ddc..362db9110e1 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/sessions.fulfill_intent.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/sessions.fulfill_intent.js
@@ -23,6 +23,9 @@
 function main() {
   // [START dialogflow_v3beta1_generated_Sessions_FulfillIntent_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/sessions.match_intent.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/sessions.match_intent.js
index bb99d08b300..229b7e3dd48 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/sessions.match_intent.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/sessions.match_intent.js
@@ -23,6 +23,9 @@
 function main(session, queryInput) {
   // [START dialogflow_v3beta1_generated_Sessions_MatchIntent_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/sessions.streaming_detect_intent.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/sessions.streaming_detect_intent.js
index 8ef00b074c9..2ef4cf567f6 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/sessions.streaming_detect_intent.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/sessions.streaming_detect_intent.js
@@ -23,6 +23,9 @@
 function main(queryInput) {
   // [START dialogflow_v3beta1_generated_Sessions_StreamingDetectIntent_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/snippet_metadata.google.cloud.dialogflow.cx.v3beta1.json b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/snippet_metadata.google.cloud.dialogflow.cx.v3beta1.json
index 857828275c1..b75d6a906e0 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/snippet_metadata.google.cloud.dialogflow.cx.v3beta1.json
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/snippet_metadata.google.cloud.dialogflow.cx.v3beta1.json
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@@ -4074,7 +4074,7 @@
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                 {
                     "start": 25,
-                    "end": 52,
+                    "end": 55,
                     "type": "FULL"
                 }
             ],
@@ -4114,7 +4114,7 @@
             "segments": [
                 {
                     "start": 25,
-                    "end": 60,
+                    "end": 63,
                     "type": "FULL"
                 }
             ],
@@ -4158,7 +4158,7 @@
             "segments": [
                 {
                     "start": 25,
-                    "end": 70,
+                    "end": 73,
                     "type": "FULL"
                 }
             ],
@@ -4206,7 +4206,7 @@
             "segments": [
                 {
                     "start": 25,
-                    "end": 62,
+                    "end": 65,
                     "type": "FULL"
                 }
             ],
@@ -4254,7 +4254,7 @@
             "segments": [
                 {
                     "start": 25,
-                    "end": 52,
+                    "end": 55,
                     "type": "FULL"
                 }
             ],
@@ -4294,7 +4294,7 @@
             "segments": [
                 {
                     "start": 25,
-                    "end": 56,
+                    "end": 59,
                     "type": "FULL"
                 }
             ],
@@ -4338,7 +4338,7 @@
             "segments": [
                 {
                     "start": 25,
-                    "end": 55,
+                    "end": 58,
                     "type": "FULL"
                 }
             ],
@@ -4382,7 +4382,7 @@
             "segments": [
                 {
                     "start": 25,
-                    "end": 63,
+                    "end": 66,
                     "type": "FULL"
                 }
             ],
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/test_cases.batch_delete_test_cases.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/test_cases.batch_delete_test_cases.js
index 87597100304..f6fb0858511 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/test_cases.batch_delete_test_cases.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/test_cases.batch_delete_test_cases.js
@@ -23,6 +23,9 @@
 function main(parent, names) {
   // [START dialogflow_v3beta1_generated_TestCases_BatchDeleteTestCases_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/test_cases.batch_run_test_cases.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/test_cases.batch_run_test_cases.js
index 703c4808939..6c73ceebc37 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/test_cases.batch_run_test_cases.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/test_cases.batch_run_test_cases.js
@@ -23,6 +23,9 @@
 function main(parent, testCases) {
   // [START dialogflow_v3beta1_generated_TestCases_BatchRunTestCases_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/test_cases.calculate_coverage.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/test_cases.calculate_coverage.js
index 82d87dcaf22..03f652d4d4c 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/test_cases.calculate_coverage.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/test_cases.calculate_coverage.js
@@ -23,6 +23,9 @@
 function main(agent, type) {
   // [START dialogflow_v3beta1_generated_TestCases_CalculateCoverage_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/test_cases.create_test_case.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/test_cases.create_test_case.js
index 01b9c90d0fd..e7f3c5516ba 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/test_cases.create_test_case.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/test_cases.create_test_case.js
@@ -23,6 +23,9 @@
 function main(parent, testCase) {
   // [START dialogflow_v3beta1_generated_TestCases_CreateTestCase_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/test_cases.export_test_cases.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/test_cases.export_test_cases.js
index a750a915ac5..165ad989487 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/test_cases.export_test_cases.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/test_cases.export_test_cases.js
@@ -23,6 +23,9 @@
 function main(parent) {
   // [START dialogflow_v3beta1_generated_TestCases_ExportTestCases_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/test_cases.get_test_case.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/test_cases.get_test_case.js
index f4c87535f82..705220d01ca 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/test_cases.get_test_case.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/test_cases.get_test_case.js
@@ -23,6 +23,9 @@
 function main(name) {
   // [START dialogflow_v3beta1_generated_TestCases_GetTestCase_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/test_cases.get_test_case_result.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/test_cases.get_test_case_result.js
index 9cf74db4255..9bddb50f858 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/test_cases.get_test_case_result.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/test_cases.get_test_case_result.js
@@ -23,6 +23,9 @@
 function main(name) {
   // [START dialogflow_v3beta1_generated_TestCases_GetTestCaseResult_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/test_cases.import_test_cases.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/test_cases.import_test_cases.js
index da69c8835fd..4c0e47f1c26 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/test_cases.import_test_cases.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/test_cases.import_test_cases.js
@@ -23,6 +23,9 @@
 function main(parent) {
   // [START dialogflow_v3beta1_generated_TestCases_ImportTestCases_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/test_cases.list_test_case_results.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/test_cases.list_test_case_results.js
index f1986e4c81b..de4e31846cc 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/test_cases.list_test_case_results.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/test_cases.list_test_case_results.js
@@ -23,6 +23,9 @@
 function main(parent) {
   // [START dialogflow_v3beta1_generated_TestCases_ListTestCaseResults_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/test_cases.list_test_cases.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/test_cases.list_test_cases.js
index 26ded9029ed..e14220b0228 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/test_cases.list_test_cases.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/test_cases.list_test_cases.js
@@ -23,6 +23,9 @@
 function main(parent) {
   // [START dialogflow_v3beta1_generated_TestCases_ListTestCases_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/test_cases.run_test_case.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/test_cases.run_test_case.js
index 7bf98c7a6d5..1890a65330c 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/test_cases.run_test_case.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/test_cases.run_test_case.js
@@ -23,6 +23,9 @@
 function main(name) {
   // [START dialogflow_v3beta1_generated_TestCases_RunTestCase_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/test_cases.update_test_case.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/test_cases.update_test_case.js
index a3405e78c26..f152b611c77 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/test_cases.update_test_case.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/test_cases.update_test_case.js
@@ -23,6 +23,9 @@
 function main(testCase, updateMask) {
   // [START dialogflow_v3beta1_generated_TestCases_UpdateTestCase_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/transition_route_groups.create_transition_route_group.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/transition_route_groups.create_transition_route_group.js
index 845c942d622..c502d96e3de 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/transition_route_groups.create_transition_route_group.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/transition_route_groups.create_transition_route_group.js
@@ -23,6 +23,9 @@
 function main(parent, transitionRouteGroup) {
   // [START dialogflow_v3beta1_generated_TransitionRouteGroups_CreateTransitionRouteGroup_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/transition_route_groups.delete_transition_route_group.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/transition_route_groups.delete_transition_route_group.js
index 57d9b53823c..d6a5b1a212f 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/transition_route_groups.delete_transition_route_group.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/transition_route_groups.delete_transition_route_group.js
@@ -23,6 +23,9 @@
 function main(name) {
   // [START dialogflow_v3beta1_generated_TransitionRouteGroups_DeleteTransitionRouteGroup_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/transition_route_groups.get_transition_route_group.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/transition_route_groups.get_transition_route_group.js
index 5f001c9633e..02b56fbfdcc 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/transition_route_groups.get_transition_route_group.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/transition_route_groups.get_transition_route_group.js
@@ -23,6 +23,9 @@
 function main(name) {
   // [START dialogflow_v3beta1_generated_TransitionRouteGroups_GetTransitionRouteGroup_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/transition_route_groups.list_transition_route_groups.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/transition_route_groups.list_transition_route_groups.js
index ac4629ef27a..5e87626a4d5 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/transition_route_groups.list_transition_route_groups.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/transition_route_groups.list_transition_route_groups.js
@@ -23,6 +23,9 @@
 function main(parent) {
   // [START dialogflow_v3beta1_generated_TransitionRouteGroups_ListTransitionRouteGroups_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/transition_route_groups.update_transition_route_group.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/transition_route_groups.update_transition_route_group.js
index 568d4c38f8e..a6b857b2a8d 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/transition_route_groups.update_transition_route_group.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/transition_route_groups.update_transition_route_group.js
@@ -23,6 +23,9 @@
 function main(transitionRouteGroup) {
   // [START dialogflow_v3beta1_generated_TransitionRouteGroups_UpdateTransitionRouteGroup_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/versions.compare_versions.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/versions.compare_versions.js
index b68439ebac3..ae9fc697627 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/versions.compare_versions.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/versions.compare_versions.js
@@ -23,6 +23,9 @@
 function main(baseVersion, targetVersion) {
   // [START dialogflow_v3beta1_generated_Versions_CompareVersions_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/versions.create_version.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/versions.create_version.js
index 1a78cb44679..45aa869221a 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/versions.create_version.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/versions.create_version.js
@@ -23,6 +23,9 @@
 function main(parent, version) {
   // [START dialogflow_v3beta1_generated_Versions_CreateVersion_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/versions.delete_version.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/versions.delete_version.js
index bc92eea2bbf..4fa5851a6c0 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/versions.delete_version.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/versions.delete_version.js
@@ -23,6 +23,9 @@
 function main(name) {
   // [START dialogflow_v3beta1_generated_Versions_DeleteVersion_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/versions.get_version.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/versions.get_version.js
index c4b77e09beb..f65e3ca570c 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/versions.get_version.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/versions.get_version.js
@@ -23,6 +23,9 @@
 function main(name) {
   // [START dialogflow_v3beta1_generated_Versions_GetVersion_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/versions.list_versions.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/versions.list_versions.js
index fb2ccb995d9..b779b25b9a0 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/versions.list_versions.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/versions.list_versions.js
@@ -23,6 +23,9 @@
 function main(parent) {
   // [START dialogflow_v3beta1_generated_Versions_ListVersions_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/versions.load_version.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/versions.load_version.js
index 28957b7bbb0..f0784cac00b 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/versions.load_version.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/versions.load_version.js
@@ -23,6 +23,9 @@
 function main(name) {
   // [START dialogflow_v3beta1_generated_Versions_LoadVersion_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/versions.update_version.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/versions.update_version.js
index 0357617c493..b976e6b6f8b 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/versions.update_version.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/versions.update_version.js
@@ -23,6 +23,9 @@
 function main(version, updateMask) {
   // [START dialogflow_v3beta1_generated_Versions_UpdateVersion_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/webhooks.create_webhook.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/webhooks.create_webhook.js
index 83bbb593907..533ad561107 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/webhooks.create_webhook.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/webhooks.create_webhook.js
@@ -23,6 +23,9 @@
 function main(parent, webhook) {
   // [START dialogflow_v3beta1_generated_Webhooks_CreateWebhook_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/webhooks.delete_webhook.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/webhooks.delete_webhook.js
index f468eb5ab53..fe73fa8d490 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/webhooks.delete_webhook.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/webhooks.delete_webhook.js
@@ -23,6 +23,9 @@
 function main(name) {
   // [START dialogflow_v3beta1_generated_Webhooks_DeleteWebhook_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/webhooks.get_webhook.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/webhooks.get_webhook.js
index ed4116da15f..2a1cd49139f 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/webhooks.get_webhook.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/webhooks.get_webhook.js
@@ -23,6 +23,9 @@
 function main(name) {
   // [START dialogflow_v3beta1_generated_Webhooks_GetWebhook_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/webhooks.list_webhooks.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/webhooks.list_webhooks.js
index 58369f72a87..5b85ba872ca 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/webhooks.list_webhooks.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/webhooks.list_webhooks.js
@@ -23,6 +23,9 @@
 function main(parent) {
   // [START dialogflow_v3beta1_generated_Webhooks_ListWebhooks_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/webhooks.update_webhook.js b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/webhooks.update_webhook.js
index 785fb546d68..dcea4057d75 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/webhooks.update_webhook.js
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/webhooks.update_webhook.js
@@ -23,6 +23,9 @@
 function main(webhook) {
   // [START dialogflow_v3beta1_generated_Webhooks_UpdateWebhook_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-dialogflow-cx/src/v3/agents_client.ts b/packages/google-cloud-dialogflow-cx/src/v3/agents_client.ts
index e8461d70259..fa71366b41d 100644
--- a/packages/google-cloud-dialogflow-cx/src/v3/agents_client.ts
+++ b/packages/google-cloud-dialogflow-cx/src/v3/agents_client.ts
@@ -32,7 +32,6 @@ import {
 } from 'google-gax';
 
 import {Transform} from 'stream';
-import {RequestType} from 'google-gax/build/src/apitypes';
 import * as protos from '../../protos/protos';
 import jsonProtos = require('../../protos/protos.json');
 /**
@@ -404,7 +403,8 @@ export class AgentsClient {
       const apiCall = this._gaxModule.createApiCall(
         callPromise,
         this._defaults[methodName],
-        descriptor
+        descriptor,
+        this._opts.fallback
       );
 
       this.innerApiCalls[methodName] = apiCall;
@@ -1202,7 +1202,7 @@ export class AgentsClient {
     const decodeOperation = new gax.Operation(
       operation,
       this.descriptors.longrunning.exportAgent,
-      gax.createDefaultBackoffSettings()
+      this._gaxModule.createDefaultBackoffSettings()
     );
     return decodeOperation as LROperation<
       protos.google.cloud.dialogflow.cx.v3.ExportAgentResponse,
@@ -1367,7 +1367,7 @@ export class AgentsClient {
     const decodeOperation = new gax.Operation(
       operation,
       this.descriptors.longrunning.restoreAgent,
-      gax.createDefaultBackoffSettings()
+      this._gaxModule.createDefaultBackoffSettings()
     );
     return decodeOperation as LROperation<
       protos.google.protobuf.Empty,
@@ -1515,7 +1515,7 @@ export class AgentsClient {
     const callSettings = defaultCallSettings.merge(options);
     this.initialize();
     return this.descriptors.page.listAgents.createStream(
-      this.innerApiCalls.listAgents as gax.GaxCall,
+      this.innerApiCalls.listAgents as GaxCall,
       request,
       callSettings
     );
@@ -1565,7 +1565,7 @@ export class AgentsClient {
     this.initialize();
     return this.descriptors.page.listAgents.asyncIterate(
       this.innerApiCalls['listAgents'] as GaxCall,
-      request as unknown as RequestType,
+      request as {},
       callSettings
     ) as AsyncIterable<protos.google.cloud.dialogflow.cx.v3.IAgent>;
   }
diff --git a/packages/google-cloud-dialogflow-cx/src/v3/changelogs_client.ts b/packages/google-cloud-dialogflow-cx/src/v3/changelogs_client.ts
index 0022f688e13..c660df960af 100644
--- a/packages/google-cloud-dialogflow-cx/src/v3/changelogs_client.ts
+++ b/packages/google-cloud-dialogflow-cx/src/v3/changelogs_client.ts
@@ -31,7 +31,6 @@ import {
 } from 'google-gax';
 
 import {Transform} from 'stream';
-import {RequestType} from 'google-gax/build/src/apitypes';
 import * as protos from '../../protos/protos';
 import jsonProtos = require('../../protos/protos.json');
 /**
@@ -40,7 +39,7 @@ import jsonProtos = require('../../protos/protos.json');
  * This file defines retry strategy and timeouts for all API methods in this library.
  */
 import * as gapicConfig from './changelogs_client_config.json';
-import {operationsProtos} from 'google-gax';
+
 const version = require('../../../package.json').version;
 
 /**
@@ -367,7 +366,8 @@ export class ChangelogsClient {
       const apiCall = this._gaxModule.createApiCall(
         callPromise,
         this._defaults[methodName],
-        descriptor
+        descriptor,
+        this._opts.fallback
       );
 
       this.innerApiCalls[methodName] = apiCall;
@@ -709,7 +709,7 @@ export class ChangelogsClient {
     const callSettings = defaultCallSettings.merge(options);
     this.initialize();
     return this.descriptors.page.listChangelogs.createStream(
-      this.innerApiCalls.listChangelogs as gax.GaxCall,
+      this.innerApiCalls.listChangelogs as GaxCall,
       request,
       callSettings
     );
@@ -780,7 +780,7 @@ export class ChangelogsClient {
     this.initialize();
     return this.descriptors.page.listChangelogs.asyncIterate(
       this.innerApiCalls['listChangelogs'] as GaxCall,
-      request as unknown as RequestType,
+      request as {},
       callSettings
     ) as AsyncIterable<protos.google.cloud.dialogflow.cx.v3.IChangelog>;
   }
diff --git a/packages/google-cloud-dialogflow-cx/src/v3/deployments_client.ts b/packages/google-cloud-dialogflow-cx/src/v3/deployments_client.ts
index 5aedf12b8ce..eac0427a3eb 100644
--- a/packages/google-cloud-dialogflow-cx/src/v3/deployments_client.ts
+++ b/packages/google-cloud-dialogflow-cx/src/v3/deployments_client.ts
@@ -31,7 +31,6 @@ import {
 } from 'google-gax';
 
 import {Transform} from 'stream';
-import {RequestType} from 'google-gax/build/src/apitypes';
 import * as protos from '../../protos/protos';
 import jsonProtos = require('../../protos/protos.json');
 /**
@@ -40,7 +39,7 @@ import jsonProtos = require('../../protos/protos.json');
  * This file defines retry strategy and timeouts for all API methods in this library.
  */
 import * as gapicConfig from './deployments_client_config.json';
-import {operationsProtos} from 'google-gax';
+
 const version = require('../../../package.json').version;
 
 /**
@@ -367,7 +366,8 @@ export class DeploymentsClient {
       const apiCall = this._gaxModule.createApiCall(
         callPromise,
         this._defaults[methodName],
-        descriptor
+        descriptor,
+        this._opts.fallback
       );
 
       this.innerApiCalls[methodName] = apiCall;
@@ -669,7 +669,7 @@ export class DeploymentsClient {
     const callSettings = defaultCallSettings.merge(options);
     this.initialize();
     return this.descriptors.page.listDeployments.createStream(
-      this.innerApiCalls.listDeployments as gax.GaxCall,
+      this.innerApiCalls.listDeployments as GaxCall,
       request,
       callSettings
     );
@@ -720,7 +720,7 @@ export class DeploymentsClient {
     this.initialize();
     return this.descriptors.page.listDeployments.asyncIterate(
       this.innerApiCalls['listDeployments'] as GaxCall,
-      request as unknown as RequestType,
+      request as {},
       callSettings
     ) as AsyncIterable<protos.google.cloud.dialogflow.cx.v3.IDeployment>;
   }
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 1b93f945914..a334fc12307 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
@@ -31,7 +31,6 @@ import {
 } from 'google-gax';
 
 import {Transform} from 'stream';
-import {RequestType} from 'google-gax/build/src/apitypes';
 import * as protos from '../../protos/protos';
 import jsonProtos = require('../../protos/protos.json');
 /**
@@ -40,7 +39,7 @@ import jsonProtos = require('../../protos/protos.json');
  * This file defines retry strategy and timeouts for all API methods in this library.
  */
 import * as gapicConfig from './entity_types_client_config.json';
-import {operationsProtos} from 'google-gax';
+
 const version = require('../../../package.json').version;
 
 /**
@@ -373,7 +372,8 @@ export class EntityTypesClient {
       const apiCall = this._gaxModule.createApiCall(
         callPromise,
         this._defaults[methodName],
-        descriptor
+        descriptor,
+        this._opts.fallback
       );
 
       this.innerApiCalls[methodName] = apiCall;
@@ -1039,7 +1039,7 @@ export class EntityTypesClient {
     const callSettings = defaultCallSettings.merge(options);
     this.initialize();
     return this.descriptors.page.listEntityTypes.createStream(
-      this.innerApiCalls.listEntityTypes as gax.GaxCall,
+      this.innerApiCalls.listEntityTypes as GaxCall,
       request,
       callSettings
     );
@@ -1102,7 +1102,7 @@ export class EntityTypesClient {
     this.initialize();
     return this.descriptors.page.listEntityTypes.asyncIterate(
       this.innerApiCalls['listEntityTypes'] as GaxCall,
-      request as unknown as RequestType,
+      request as {},
       callSettings
     ) as AsyncIterable<protos.google.cloud.dialogflow.cx.v3.IEntityType>;
   }
diff --git a/packages/google-cloud-dialogflow-cx/src/v3/environments_client.ts b/packages/google-cloud-dialogflow-cx/src/v3/environments_client.ts
index 74357e7a16f..76a5877dd7a 100644
--- a/packages/google-cloud-dialogflow-cx/src/v3/environments_client.ts
+++ b/packages/google-cloud-dialogflow-cx/src/v3/environments_client.ts
@@ -32,7 +32,6 @@ import {
 } from 'google-gax';
 
 import {Transform} from 'stream';
-import {RequestType} from 'google-gax/build/src/apitypes';
 import * as protos from '../../protos/protos';
 import jsonProtos = require('../../protos/protos.json');
 /**
@@ -436,7 +435,8 @@ export class EnvironmentsClient {
       const apiCall = this._gaxModule.createApiCall(
         callPromise,
         this._defaults[methodName],
-        descriptor
+        descriptor,
+        this._opts.fallback
       );
 
       this.innerApiCalls[methodName] = apiCall;
@@ -835,7 +835,7 @@ export class EnvironmentsClient {
     const decodeOperation = new gax.Operation(
       operation,
       this.descriptors.longrunning.createEnvironment,
-      gax.createDefaultBackoffSettings()
+      this._gaxModule.createDefaultBackoffSettings()
     );
     return decodeOperation as LROperation<
       protos.google.cloud.dialogflow.cx.v3.Environment,
@@ -982,7 +982,7 @@ export class EnvironmentsClient {
     const decodeOperation = new gax.Operation(
       operation,
       this.descriptors.longrunning.updateEnvironment,
-      gax.createDefaultBackoffSettings()
+      this._gaxModule.createDefaultBackoffSettings()
     );
     return decodeOperation as LROperation<
       protos.google.cloud.dialogflow.cx.v3.Environment,
@@ -1127,7 +1127,7 @@ export class EnvironmentsClient {
     const decodeOperation = new gax.Operation(
       operation,
       this.descriptors.longrunning.runContinuousTest,
-      gax.createDefaultBackoffSettings()
+      this._gaxModule.createDefaultBackoffSettings()
     );
     return decodeOperation as LROperation<
       protos.google.cloud.dialogflow.cx.v3.RunContinuousTestResponse,
@@ -1277,7 +1277,7 @@ export class EnvironmentsClient {
     const decodeOperation = new gax.Operation(
       operation,
       this.descriptors.longrunning.deployFlow,
-      gax.createDefaultBackoffSettings()
+      this._gaxModule.createDefaultBackoffSettings()
     );
     return decodeOperation as LROperation<
       protos.google.cloud.dialogflow.cx.v3.DeployFlowResponse,
@@ -1425,7 +1425,7 @@ export class EnvironmentsClient {
     const callSettings = defaultCallSettings.merge(options);
     this.initialize();
     return this.descriptors.page.listEnvironments.createStream(
-      this.innerApiCalls.listEnvironments as gax.GaxCall,
+      this.innerApiCalls.listEnvironments as GaxCall,
       request,
       callSettings
     );
@@ -1475,7 +1475,7 @@ export class EnvironmentsClient {
     this.initialize();
     return this.descriptors.page.listEnvironments.asyncIterate(
       this.innerApiCalls['listEnvironments'] as GaxCall,
-      request as unknown as RequestType,
+      request as {},
       callSettings
     ) as AsyncIterable<protos.google.cloud.dialogflow.cx.v3.IEnvironment>;
   }
@@ -1626,7 +1626,7 @@ export class EnvironmentsClient {
     const callSettings = defaultCallSettings.merge(options);
     this.initialize();
     return this.descriptors.page.lookupEnvironmentHistory.createStream(
-      this.innerApiCalls.lookupEnvironmentHistory as gax.GaxCall,
+      this.innerApiCalls.lookupEnvironmentHistory as GaxCall,
       request,
       callSettings
     );
@@ -1677,7 +1677,7 @@ export class EnvironmentsClient {
     this.initialize();
     return this.descriptors.page.lookupEnvironmentHistory.asyncIterate(
       this.innerApiCalls['lookupEnvironmentHistory'] as GaxCall,
-      request as unknown as RequestType,
+      request as {},
       callSettings
     ) as AsyncIterable<protos.google.cloud.dialogflow.cx.v3.IEnvironment>;
   }
@@ -1828,7 +1828,7 @@ export class EnvironmentsClient {
     const callSettings = defaultCallSettings.merge(options);
     this.initialize();
     return this.descriptors.page.listContinuousTestResults.createStream(
-      this.innerApiCalls.listContinuousTestResults as gax.GaxCall,
+      this.innerApiCalls.listContinuousTestResults as GaxCall,
       request,
       callSettings
     );
@@ -1879,7 +1879,7 @@ export class EnvironmentsClient {
     this.initialize();
     return this.descriptors.page.listContinuousTestResults.asyncIterate(
       this.innerApiCalls['listContinuousTestResults'] as GaxCall,
-      request as unknown as RequestType,
+      request as {},
       callSettings
     ) as AsyncIterable<protos.google.cloud.dialogflow.cx.v3.IContinuousTestResult>;
   }
diff --git a/packages/google-cloud-dialogflow-cx/src/v3/experiments_client.ts b/packages/google-cloud-dialogflow-cx/src/v3/experiments_client.ts
index dd82ebffe9e..fb8cc95f68d 100644
--- a/packages/google-cloud-dialogflow-cx/src/v3/experiments_client.ts
+++ b/packages/google-cloud-dialogflow-cx/src/v3/experiments_client.ts
@@ -31,7 +31,6 @@ import {
 } from 'google-gax';
 
 import {Transform} from 'stream';
-import {RequestType} from 'google-gax/build/src/apitypes';
 import * as protos from '../../protos/protos';
 import jsonProtos = require('../../protos/protos.json');
 /**
@@ -40,7 +39,7 @@ import jsonProtos = require('../../protos/protos.json');
  * This file defines retry strategy and timeouts for all API methods in this library.
  */
 import * as gapicConfig from './experiments_client_config.json';
-import {operationsProtos} from 'google-gax';
+
 const version = require('../../../package.json').version;
 
 /**
@@ -375,7 +374,8 @@ export class ExperimentsClient {
       const apiCall = this._gaxModule.createApiCall(
         callPromise,
         this._defaults[methodName],
-        descriptor
+        descriptor,
+        this._opts.fallback
       );
 
       this.innerApiCalls[methodName] = apiCall;
@@ -1146,7 +1146,7 @@ export class ExperimentsClient {
     const callSettings = defaultCallSettings.merge(options);
     this.initialize();
     return this.descriptors.page.listExperiments.createStream(
-      this.innerApiCalls.listExperiments as gax.GaxCall,
+      this.innerApiCalls.listExperiments as GaxCall,
       request,
       callSettings
     );
@@ -1197,7 +1197,7 @@ export class ExperimentsClient {
     this.initialize();
     return this.descriptors.page.listExperiments.asyncIterate(
       this.innerApiCalls['listExperiments'] as GaxCall,
-      request as unknown as RequestType,
+      request as {},
       callSettings
     ) as AsyncIterable<protos.google.cloud.dialogflow.cx.v3.IExperiment>;
   }
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 c6d9af5b0e3..700347f2a0e 100644
--- a/packages/google-cloud-dialogflow-cx/src/v3/flows_client.ts
+++ b/packages/google-cloud-dialogflow-cx/src/v3/flows_client.ts
@@ -32,7 +32,6 @@ import {
 } from 'google-gax';
 
 import {Transform} from 'stream';
-import {RequestType} from 'google-gax/build/src/apitypes';
 import * as protos from '../../protos/protos';
 import jsonProtos = require('../../protos/protos.json');
 /**
@@ -416,7 +415,8 @@ export class FlowsClient {
       const apiCall = this._gaxModule.createApiCall(
         callPromise,
         this._defaults[methodName],
-        descriptor
+        descriptor,
+        this._opts.fallback
       );
 
       this.innerApiCalls[methodName] = apiCall;
@@ -1255,7 +1255,7 @@ export class FlowsClient {
     const decodeOperation = new gax.Operation(
       operation,
       this.descriptors.longrunning.trainFlow,
-      gax.createDefaultBackoffSettings()
+      this._gaxModule.createDefaultBackoffSettings()
     );
     return decodeOperation as LROperation<
       protos.google.protobuf.Empty,
@@ -1419,7 +1419,7 @@ export class FlowsClient {
     const decodeOperation = new gax.Operation(
       operation,
       this.descriptors.longrunning.importFlow,
-      gax.createDefaultBackoffSettings()
+      this._gaxModule.createDefaultBackoffSettings()
     );
     return decodeOperation as LROperation<
       protos.google.cloud.dialogflow.cx.v3.ImportFlowResponse,
@@ -1582,7 +1582,7 @@ export class FlowsClient {
     const decodeOperation = new gax.Operation(
       operation,
       this.descriptors.longrunning.exportFlow,
-      gax.createDefaultBackoffSettings()
+      this._gaxModule.createDefaultBackoffSettings()
     );
     return decodeOperation as LROperation<
       protos.google.cloud.dialogflow.cx.v3.ExportFlowResponse,
@@ -1758,7 +1758,7 @@ export class FlowsClient {
     const callSettings = defaultCallSettings.merge(options);
     this.initialize();
     return this.descriptors.page.listFlows.createStream(
-      this.innerApiCalls.listFlows as gax.GaxCall,
+      this.innerApiCalls.listFlows as GaxCall,
       request,
       callSettings
     );
@@ -1822,7 +1822,7 @@ export class FlowsClient {
     this.initialize();
     return this.descriptors.page.listFlows.asyncIterate(
       this.innerApiCalls['listFlows'] as GaxCall,
-      request as unknown as RequestType,
+      request as {},
       callSettings
     ) as AsyncIterable<protos.google.cloud.dialogflow.cx.v3.IFlow>;
   }
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 0e8973cef9a..904ac62fa16 100644
--- a/packages/google-cloud-dialogflow-cx/src/v3/intents_client.ts
+++ b/packages/google-cloud-dialogflow-cx/src/v3/intents_client.ts
@@ -31,7 +31,6 @@ import {
 } from 'google-gax';
 
 import {Transform} from 'stream';
-import {RequestType} from 'google-gax/build/src/apitypes';
 import * as protos from '../../protos/protos';
 import jsonProtos = require('../../protos/protos.json');
 /**
@@ -40,7 +39,7 @@ import jsonProtos = require('../../protos/protos.json');
  * This file defines retry strategy and timeouts for all API methods in this library.
  */
 import * as gapicConfig from './intents_client_config.json';
-import {operationsProtos} from 'google-gax';
+
 const version = require('../../../package.json').version;
 
 /**
@@ -373,7 +372,8 @@ export class IntentsClient {
       const apiCall = this._gaxModule.createApiCall(
         callPromise,
         this._defaults[methodName],
-        descriptor
+        descriptor,
+        this._opts.fallback
       );
 
       this.innerApiCalls[methodName] = apiCall;
@@ -1017,7 +1017,7 @@ export class IntentsClient {
     const callSettings = defaultCallSettings.merge(options);
     this.initialize();
     return this.descriptors.page.listIntents.createStream(
-      this.innerApiCalls.listIntents as gax.GaxCall,
+      this.innerApiCalls.listIntents as GaxCall,
       request,
       callSettings
     );
@@ -1080,7 +1080,7 @@ export class IntentsClient {
     this.initialize();
     return this.descriptors.page.listIntents.asyncIterate(
       this.innerApiCalls['listIntents'] as GaxCall,
-      request as unknown as RequestType,
+      request as {},
       callSettings
     ) as AsyncIterable<protos.google.cloud.dialogflow.cx.v3.IIntent>;
   }
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 f4659451a74..0e9350f880f 100644
--- a/packages/google-cloud-dialogflow-cx/src/v3/pages_client.ts
+++ b/packages/google-cloud-dialogflow-cx/src/v3/pages_client.ts
@@ -31,7 +31,6 @@ import {
 } from 'google-gax';
 
 import {Transform} from 'stream';
-import {RequestType} from 'google-gax/build/src/apitypes';
 import * as protos from '../../protos/protos';
 import jsonProtos = require('../../protos/protos.json');
 /**
@@ -40,7 +39,7 @@ import jsonProtos = require('../../protos/protos.json');
  * This file defines retry strategy and timeouts for all API methods in this library.
  */
 import * as gapicConfig from './pages_client_config.json';
-import {operationsProtos} from 'google-gax';
+
 const version = require('../../../package.json').version;
 
 /**
@@ -373,7 +372,8 @@ export class PagesClient {
       const apiCall = this._gaxModule.createApiCall(
         callPromise,
         this._defaults[methodName],
-        descriptor
+        descriptor,
+        this._opts.fallback
       );
 
       this.innerApiCalls[methodName] = apiCall;
@@ -1082,7 +1082,7 @@ export class PagesClient {
     const callSettings = defaultCallSettings.merge(options);
     this.initialize();
     return this.descriptors.page.listPages.createStream(
-      this.innerApiCalls.listPages as gax.GaxCall,
+      this.innerApiCalls.listPages as GaxCall,
       request,
       callSettings
     );
@@ -1155,7 +1155,7 @@ export class PagesClient {
     this.initialize();
     return this.descriptors.page.listPages.asyncIterate(
       this.innerApiCalls['listPages'] as GaxCall,
-      request as unknown as RequestType,
+      request as {},
       callSettings
     ) as AsyncIterable<protos.google.cloud.dialogflow.cx.v3.IPage>;
   }
diff --git a/packages/google-cloud-dialogflow-cx/src/v3/security_settings_service_client.ts b/packages/google-cloud-dialogflow-cx/src/v3/security_settings_service_client.ts
index b3f0dc405b9..377f5f908d5 100644
--- a/packages/google-cloud-dialogflow-cx/src/v3/security_settings_service_client.ts
+++ b/packages/google-cloud-dialogflow-cx/src/v3/security_settings_service_client.ts
@@ -31,7 +31,6 @@ import {
 } from 'google-gax';
 
 import {Transform} from 'stream';
-import {RequestType} from 'google-gax/build/src/apitypes';
 import * as protos from '../../protos/protos';
 import jsonProtos = require('../../protos/protos.json');
 /**
@@ -40,7 +39,7 @@ import jsonProtos = require('../../protos/protos.json');
  * This file defines retry strategy and timeouts for all API methods in this library.
  */
 import * as gapicConfig from './security_settings_service_client_config.json';
-import {operationsProtos} from 'google-gax';
+
 const version = require('../../../package.json').version;
 
 /**
@@ -391,7 +390,8 @@ export class SecuritySettingsServiceClient {
       const apiCall = this._gaxModule.createApiCall(
         callPromise,
         this._defaults[methodName],
-        descriptor
+        descriptor,
+        this._opts.fallback
       );
 
       this.innerApiCalls[methodName] = apiCall;
@@ -1010,7 +1010,7 @@ export class SecuritySettingsServiceClient {
     const callSettings = defaultCallSettings.merge(options);
     this.initialize();
     return this.descriptors.page.listSecuritySettings.createStream(
-      this.innerApiCalls.listSecuritySettings as gax.GaxCall,
+      this.innerApiCalls.listSecuritySettings as GaxCall,
       request,
       callSettings
     );
@@ -1060,7 +1060,7 @@ export class SecuritySettingsServiceClient {
     this.initialize();
     return this.descriptors.page.listSecuritySettings.asyncIterate(
       this.innerApiCalls['listSecuritySettings'] as GaxCall,
-      request as unknown as RequestType,
+      request as {},
       callSettings
     ) as AsyncIterable<protos.google.cloud.dialogflow.cx.v3.ISecuritySettings>;
   }
diff --git a/packages/google-cloud-dialogflow-cx/src/v3/session_entity_types_client.ts b/packages/google-cloud-dialogflow-cx/src/v3/session_entity_types_client.ts
index 57e913a2a11..ca91357f9b9 100644
--- a/packages/google-cloud-dialogflow-cx/src/v3/session_entity_types_client.ts
+++ b/packages/google-cloud-dialogflow-cx/src/v3/session_entity_types_client.ts
@@ -31,7 +31,6 @@ import {
 } from 'google-gax';
 
 import {Transform} from 'stream';
-import {RequestType} from 'google-gax/build/src/apitypes';
 import * as protos from '../../protos/protos';
 import jsonProtos = require('../../protos/protos.json');
 /**
@@ -40,7 +39,7 @@ import jsonProtos = require('../../protos/protos.json');
  * This file defines retry strategy and timeouts for all API methods in this library.
  */
 import * as gapicConfig from './session_entity_types_client_config.json';
-import {operationsProtos} from 'google-gax';
+
 const version = require('../../../package.json').version;
 
 /**
@@ -377,7 +376,8 @@ export class SessionEntityTypesClient {
       const apiCall = this._gaxModule.createApiCall(
         callPromise,
         this._defaults[methodName],
-        descriptor
+        descriptor,
+        this._opts.fallback
       );
 
       this.innerApiCalls[methodName] = apiCall;
@@ -1023,7 +1023,7 @@ export class SessionEntityTypesClient {
     const callSettings = defaultCallSettings.merge(options);
     this.initialize();
     return this.descriptors.page.listSessionEntityTypes.createStream(
-      this.innerApiCalls.listSessionEntityTypes as gax.GaxCall,
+      this.innerApiCalls.listSessionEntityTypes as GaxCall,
       request,
       callSettings
     );
@@ -1077,7 +1077,7 @@ export class SessionEntityTypesClient {
     this.initialize();
     return this.descriptors.page.listSessionEntityTypes.asyncIterate(
       this.innerApiCalls['listSessionEntityTypes'] as GaxCall,
-      request as unknown as RequestType,
+      request as {},
       callSettings
     ) as AsyncIterable<protos.google.cloud.dialogflow.cx.v3.ISessionEntityType>;
   }
diff --git a/packages/google-cloud-dialogflow-cx/src/v3/sessions_client.ts b/packages/google-cloud-dialogflow-cx/src/v3/sessions_client.ts
index 069e1193a7e..cdb35a32918 100644
--- a/packages/google-cloud-dialogflow-cx/src/v3/sessions_client.ts
+++ b/packages/google-cloud-dialogflow-cx/src/v3/sessions_client.ts
@@ -38,7 +38,7 @@ import jsonProtos = require('../../protos/protos.json');
  * This file defines retry strategy and timeouts for all API methods in this library.
  */
 import * as gapicConfig from './sessions_client_config.json';
-import {operationsProtos} from 'google-gax';
+
 const version = require('../../../package.json').version;
 
 /**
@@ -381,7 +381,8 @@ export class SessionsClient {
       const apiCall = this._gaxModule.createApiCall(
         callPromise,
         this._defaults[methodName],
-        descriptor
+        descriptor,
+        this._opts.fallback
       );
 
       this.innerApiCalls[methodName] = apiCall;
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 1b0e18a854e..ec3c11cef4f 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
@@ -32,7 +32,6 @@ import {
 } from 'google-gax';
 
 import {Transform} from 'stream';
-import {RequestType} from 'google-gax/build/src/apitypes';
 import * as protos from '../../protos/protos';
 import jsonProtos = require('../../protos/protos.json');
 /**
@@ -435,7 +434,8 @@ export class TestCasesClient {
       const apiCall = this._gaxModule.createApiCall(
         callPromise,
         this._defaults[methodName],
-        descriptor
+        descriptor,
+        this._opts.fallback
       );
 
       this.innerApiCalls[methodName] = apiCall;
@@ -1225,7 +1225,7 @@ export class TestCasesClient {
     const decodeOperation = new gax.Operation(
       operation,
       this.descriptors.longrunning.runTestCase,
-      gax.createDefaultBackoffSettings()
+      this._gaxModule.createDefaultBackoffSettings()
     );
     return decodeOperation as LROperation<
       protos.google.cloud.dialogflow.cx.v3.RunTestCaseResponse,
@@ -1377,7 +1377,7 @@ export class TestCasesClient {
     const decodeOperation = new gax.Operation(
       operation,
       this.descriptors.longrunning.batchRunTestCases,
-      gax.createDefaultBackoffSettings()
+      this._gaxModule.createDefaultBackoffSettings()
     );
     return decodeOperation as LROperation<
       protos.google.cloud.dialogflow.cx.v3.BatchRunTestCasesResponse,
@@ -1536,7 +1536,7 @@ export class TestCasesClient {
     const decodeOperation = new gax.Operation(
       operation,
       this.descriptors.longrunning.importTestCases,
-      gax.createDefaultBackoffSettings()
+      this._gaxModule.createDefaultBackoffSettings()
     );
     return decodeOperation as LROperation<
       protos.google.cloud.dialogflow.cx.v3.ImportTestCasesResponse,
@@ -1707,7 +1707,7 @@ export class TestCasesClient {
     const decodeOperation = new gax.Operation(
       operation,
       this.descriptors.longrunning.exportTestCases,
-      gax.createDefaultBackoffSettings()
+      this._gaxModule.createDefaultBackoffSettings()
     );
     return decodeOperation as LROperation<
       protos.google.cloud.dialogflow.cx.v3.ExportTestCasesResponse,
@@ -1861,7 +1861,7 @@ export class TestCasesClient {
     const callSettings = defaultCallSettings.merge(options);
     this.initialize();
     return this.descriptors.page.listTestCases.createStream(
-      this.innerApiCalls.listTestCases as gax.GaxCall,
+      this.innerApiCalls.listTestCases as GaxCall,
       request,
       callSettings
     );
@@ -1914,7 +1914,7 @@ export class TestCasesClient {
     this.initialize();
     return this.descriptors.page.listTestCases.asyncIterate(
       this.innerApiCalls['listTestCases'] as GaxCall,
-      request as unknown as RequestType,
+      request as {},
       callSettings
     ) as AsyncIterable<protos.google.cloud.dialogflow.cx.v3.ITestCase>;
   }
@@ -2113,7 +2113,7 @@ export class TestCasesClient {
     const callSettings = defaultCallSettings.merge(options);
     this.initialize();
     return this.descriptors.page.listTestCaseResults.createStream(
-      this.innerApiCalls.listTestCaseResults as gax.GaxCall,
+      this.innerApiCalls.listTestCaseResults as GaxCall,
       request,
       callSettings
     );
@@ -2190,7 +2190,7 @@ export class TestCasesClient {
     this.initialize();
     return this.descriptors.page.listTestCaseResults.asyncIterate(
       this.innerApiCalls['listTestCaseResults'] as GaxCall,
-      request as unknown as RequestType,
+      request as {},
       callSettings
     ) as AsyncIterable<protos.google.cloud.dialogflow.cx.v3.ITestCaseResult>;
   }
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 1975cf95549..f63be052401 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
@@ -31,7 +31,6 @@ import {
 } from 'google-gax';
 
 import {Transform} from 'stream';
-import {RequestType} from 'google-gax/build/src/apitypes';
 import * as protos from '../../protos/protos';
 import jsonProtos = require('../../protos/protos.json');
 /**
@@ -40,7 +39,7 @@ import jsonProtos = require('../../protos/protos.json');
  * This file defines retry strategy and timeouts for all API methods in this library.
  */
 import * as gapicConfig from './transition_route_groups_client_config.json';
-import {operationsProtos} from 'google-gax';
+
 const version = require('../../../package.json').version;
 
 /**
@@ -375,7 +374,8 @@ export class TransitionRouteGroupsClient {
       const apiCall = this._gaxModule.createApiCall(
         callPromise,
         this._defaults[methodName],
-        descriptor
+        descriptor,
+        this._opts.fallback
       );
 
       this.innerApiCalls[methodName] = apiCall;
@@ -1087,7 +1087,7 @@ export class TransitionRouteGroupsClient {
     const callSettings = defaultCallSettings.merge(options);
     this.initialize();
     return this.descriptors.page.listTransitionRouteGroups.createStream(
-      this.innerApiCalls.listTransitionRouteGroups as gax.GaxCall,
+      this.innerApiCalls.listTransitionRouteGroups as GaxCall,
       request,
       callSettings
     );
@@ -1152,7 +1152,7 @@ export class TransitionRouteGroupsClient {
     this.initialize();
     return this.descriptors.page.listTransitionRouteGroups.asyncIterate(
       this.innerApiCalls['listTransitionRouteGroups'] as GaxCall,
-      request as unknown as RequestType,
+      request as {},
       callSettings
     ) as AsyncIterable<protos.google.cloud.dialogflow.cx.v3.ITransitionRouteGroup>;
   }
diff --git a/packages/google-cloud-dialogflow-cx/src/v3/versions_client.ts b/packages/google-cloud-dialogflow-cx/src/v3/versions_client.ts
index c48a85f0e27..9f847c27acb 100644
--- a/packages/google-cloud-dialogflow-cx/src/v3/versions_client.ts
+++ b/packages/google-cloud-dialogflow-cx/src/v3/versions_client.ts
@@ -32,7 +32,6 @@ import {
 } from 'google-gax';
 
 import {Transform} from 'stream';
-import {RequestType} from 'google-gax/build/src/apitypes';
 import * as protos from '../../protos/protos';
 import jsonProtos = require('../../protos/protos.json');
 /**
@@ -402,7 +401,8 @@ export class VersionsClient {
       const apiCall = this._gaxModule.createApiCall(
         callPromise,
         this._defaults[methodName],
-        descriptor
+        descriptor,
+        this._opts.fallback
       );
 
       this.innerApiCalls[methodName] = apiCall;
@@ -997,7 +997,7 @@ export class VersionsClient {
     const decodeOperation = new gax.Operation(
       operation,
       this.descriptors.longrunning.createVersion,
-      gax.createDefaultBackoffSettings()
+      this._gaxModule.createDefaultBackoffSettings()
     );
     return decodeOperation as LROperation<
       protos.google.cloud.dialogflow.cx.v3.Version,
@@ -1147,7 +1147,7 @@ export class VersionsClient {
     const decodeOperation = new gax.Operation(
       operation,
       this.descriptors.longrunning.loadVersion,
-      gax.createDefaultBackoffSettings()
+      this._gaxModule.createDefaultBackoffSettings()
     );
     return decodeOperation as LROperation<
       protos.google.protobuf.Empty,
@@ -1297,7 +1297,7 @@ export class VersionsClient {
     const callSettings = defaultCallSettings.merge(options);
     this.initialize();
     return this.descriptors.page.listVersions.createStream(
-      this.innerApiCalls.listVersions as gax.GaxCall,
+      this.innerApiCalls.listVersions as GaxCall,
       request,
       callSettings
     );
@@ -1348,7 +1348,7 @@ export class VersionsClient {
     this.initialize();
     return this.descriptors.page.listVersions.asyncIterate(
       this.innerApiCalls['listVersions'] as GaxCall,
-      request as unknown as RequestType,
+      request as {},
       callSettings
     ) as AsyncIterable<protos.google.cloud.dialogflow.cx.v3.IVersion>;
   }
diff --git a/packages/google-cloud-dialogflow-cx/src/v3/webhooks_client.ts b/packages/google-cloud-dialogflow-cx/src/v3/webhooks_client.ts
index d355afc17ae..06861f14311 100644
--- a/packages/google-cloud-dialogflow-cx/src/v3/webhooks_client.ts
+++ b/packages/google-cloud-dialogflow-cx/src/v3/webhooks_client.ts
@@ -31,7 +31,6 @@ import {
 } from 'google-gax';
 
 import {Transform} from 'stream';
-import {RequestType} from 'google-gax/build/src/apitypes';
 import * as protos from '../../protos/protos';
 import jsonProtos = require('../../protos/protos.json');
 /**
@@ -40,7 +39,7 @@ import jsonProtos = require('../../protos/protos.json');
  * This file defines retry strategy and timeouts for all API methods in this library.
  */
 import * as gapicConfig from './webhooks_client_config.json';
-import {operationsProtos} from 'google-gax';
+
 const version = require('../../../package.json').version;
 
 /**
@@ -380,7 +379,8 @@ export class WebhooksClient {
       const apiCall = this._gaxModule.createApiCall(
         callPromise,
         this._defaults[methodName],
-        descriptor
+        descriptor,
+        this._opts.fallback
       );
 
       this.innerApiCalls[methodName] = apiCall;
@@ -971,7 +971,7 @@ export class WebhooksClient {
     const callSettings = defaultCallSettings.merge(options);
     this.initialize();
     return this.descriptors.page.listWebhooks.createStream(
-      this.innerApiCalls.listWebhooks as gax.GaxCall,
+      this.innerApiCalls.listWebhooks as GaxCall,
       request,
       callSettings
     );
@@ -1021,7 +1021,7 @@ export class WebhooksClient {
     this.initialize();
     return this.descriptors.page.listWebhooks.asyncIterate(
       this.innerApiCalls['listWebhooks'] as GaxCall,
-      request as unknown as RequestType,
+      request as {},
       callSettings
     ) as AsyncIterable<protos.google.cloud.dialogflow.cx.v3.IWebhook>;
   }
diff --git a/packages/google-cloud-dialogflow-cx/src/v3beta1/agents_client.ts b/packages/google-cloud-dialogflow-cx/src/v3beta1/agents_client.ts
index 752c8b4a03f..c7e9d21e661 100644
--- a/packages/google-cloud-dialogflow-cx/src/v3beta1/agents_client.ts
+++ b/packages/google-cloud-dialogflow-cx/src/v3beta1/agents_client.ts
@@ -32,7 +32,6 @@ import {
 } from 'google-gax';
 
 import {Transform} from 'stream';
-import {RequestType} from 'google-gax/build/src/apitypes';
 import * as protos from '../../protos/protos';
 import jsonProtos = require('../../protos/protos.json');
 /**
@@ -406,7 +405,8 @@ export class AgentsClient {
       const apiCall = this._gaxModule.createApiCall(
         callPromise,
         this._defaults[methodName],
-        descriptor
+        descriptor,
+        this._opts.fallback
       );
 
       this.innerApiCalls[methodName] = apiCall;
@@ -1216,7 +1216,7 @@ export class AgentsClient {
     const decodeOperation = new gax.Operation(
       operation,
       this.descriptors.longrunning.exportAgent,
-      gax.createDefaultBackoffSettings()
+      this._gaxModule.createDefaultBackoffSettings()
     );
     return decodeOperation as LROperation<
       protos.google.cloud.dialogflow.cx.v3beta1.ExportAgentResponse,
@@ -1381,7 +1381,7 @@ export class AgentsClient {
     const decodeOperation = new gax.Operation(
       operation,
       this.descriptors.longrunning.restoreAgent,
-      gax.createDefaultBackoffSettings()
+      this._gaxModule.createDefaultBackoffSettings()
     );
     return decodeOperation as LROperation<
       protos.google.protobuf.Empty,
@@ -1529,7 +1529,7 @@ export class AgentsClient {
     const callSettings = defaultCallSettings.merge(options);
     this.initialize();
     return this.descriptors.page.listAgents.createStream(
-      this.innerApiCalls.listAgents as gax.GaxCall,
+      this.innerApiCalls.listAgents as GaxCall,
       request,
       callSettings
     );
@@ -1579,7 +1579,7 @@ export class AgentsClient {
     this.initialize();
     return this.descriptors.page.listAgents.asyncIterate(
       this.innerApiCalls['listAgents'] as GaxCall,
-      request as unknown as RequestType,
+      request as {},
       callSettings
     ) as AsyncIterable<protos.google.cloud.dialogflow.cx.v3beta1.IAgent>;
   }
diff --git a/packages/google-cloud-dialogflow-cx/src/v3beta1/changelogs_client.ts b/packages/google-cloud-dialogflow-cx/src/v3beta1/changelogs_client.ts
index 88c9b267df9..a7d31ce31b0 100644
--- a/packages/google-cloud-dialogflow-cx/src/v3beta1/changelogs_client.ts
+++ b/packages/google-cloud-dialogflow-cx/src/v3beta1/changelogs_client.ts
@@ -31,7 +31,6 @@ import {
 } from 'google-gax';
 
 import {Transform} from 'stream';
-import {RequestType} from 'google-gax/build/src/apitypes';
 import * as protos from '../../protos/protos';
 import jsonProtos = require('../../protos/protos.json');
 /**
@@ -40,7 +39,7 @@ import jsonProtos = require('../../protos/protos.json');
  * This file defines retry strategy and timeouts for all API methods in this library.
  */
 import * as gapicConfig from './changelogs_client_config.json';
-import {operationsProtos} from 'google-gax';
+
 const version = require('../../../package.json').version;
 
 /**
@@ -369,7 +368,8 @@ export class ChangelogsClient {
       const apiCall = this._gaxModule.createApiCall(
         callPromise,
         this._defaults[methodName],
-        descriptor
+        descriptor,
+        this._opts.fallback
       );
 
       this.innerApiCalls[methodName] = apiCall;
@@ -717,7 +717,7 @@ export class ChangelogsClient {
     const callSettings = defaultCallSettings.merge(options);
     this.initialize();
     return this.descriptors.page.listChangelogs.createStream(
-      this.innerApiCalls.listChangelogs as gax.GaxCall,
+      this.innerApiCalls.listChangelogs as GaxCall,
       request,
       callSettings
     );
@@ -788,7 +788,7 @@ export class ChangelogsClient {
     this.initialize();
     return this.descriptors.page.listChangelogs.asyncIterate(
       this.innerApiCalls['listChangelogs'] as GaxCall,
-      request as unknown as RequestType,
+      request as {},
       callSettings
     ) as AsyncIterable<protos.google.cloud.dialogflow.cx.v3beta1.IChangelog>;
   }
diff --git a/packages/google-cloud-dialogflow-cx/src/v3beta1/deployments_client.ts b/packages/google-cloud-dialogflow-cx/src/v3beta1/deployments_client.ts
index e737c543c3b..1f0b7790ced 100644
--- a/packages/google-cloud-dialogflow-cx/src/v3beta1/deployments_client.ts
+++ b/packages/google-cloud-dialogflow-cx/src/v3beta1/deployments_client.ts
@@ -31,7 +31,6 @@ import {
 } from 'google-gax';
 
 import {Transform} from 'stream';
-import {RequestType} from 'google-gax/build/src/apitypes';
 import * as protos from '../../protos/protos';
 import jsonProtos = require('../../protos/protos.json');
 /**
@@ -40,7 +39,7 @@ import jsonProtos = require('../../protos/protos.json');
  * This file defines retry strategy and timeouts for all API methods in this library.
  */
 import * as gapicConfig from './deployments_client_config.json';
-import {operationsProtos} from 'google-gax';
+
 const version = require('../../../package.json').version;
 
 /**
@@ -369,7 +368,8 @@ export class DeploymentsClient {
       const apiCall = this._gaxModule.createApiCall(
         callPromise,
         this._defaults[methodName],
-        descriptor
+        descriptor,
+        this._opts.fallback
       );
 
       this.innerApiCalls[methodName] = apiCall;
@@ -677,7 +677,7 @@ export class DeploymentsClient {
     const callSettings = defaultCallSettings.merge(options);
     this.initialize();
     return this.descriptors.page.listDeployments.createStream(
-      this.innerApiCalls.listDeployments as gax.GaxCall,
+      this.innerApiCalls.listDeployments as GaxCall,
       request,
       callSettings
     );
@@ -728,7 +728,7 @@ export class DeploymentsClient {
     this.initialize();
     return this.descriptors.page.listDeployments.asyncIterate(
       this.innerApiCalls['listDeployments'] as GaxCall,
-      request as unknown as RequestType,
+      request as {},
       callSettings
     ) as AsyncIterable<protos.google.cloud.dialogflow.cx.v3beta1.IDeployment>;
   }
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 9239db5f1f3..c59ea605ec0 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
@@ -31,7 +31,6 @@ import {
 } from 'google-gax';
 
 import {Transform} from 'stream';
-import {RequestType} from 'google-gax/build/src/apitypes';
 import * as protos from '../../protos/protos';
 import jsonProtos = require('../../protos/protos.json');
 /**
@@ -40,7 +39,7 @@ import jsonProtos = require('../../protos/protos.json');
  * This file defines retry strategy and timeouts for all API methods in this library.
  */
 import * as gapicConfig from './entity_types_client_config.json';
-import {operationsProtos} from 'google-gax';
+
 const version = require('../../../package.json').version;
 
 /**
@@ -375,7 +374,8 @@ export class EntityTypesClient {
       const apiCall = this._gaxModule.createApiCall(
         callPromise,
         this._defaults[methodName],
-        descriptor
+        descriptor,
+        this._opts.fallback
       );
 
       this.innerApiCalls[methodName] = apiCall;
@@ -1061,7 +1061,7 @@ export class EntityTypesClient {
     const callSettings = defaultCallSettings.merge(options);
     this.initialize();
     return this.descriptors.page.listEntityTypes.createStream(
-      this.innerApiCalls.listEntityTypes as gax.GaxCall,
+      this.innerApiCalls.listEntityTypes as GaxCall,
       request,
       callSettings
     );
@@ -1124,7 +1124,7 @@ export class EntityTypesClient {
     this.initialize();
     return this.descriptors.page.listEntityTypes.asyncIterate(
       this.innerApiCalls['listEntityTypes'] as GaxCall,
-      request as unknown as RequestType,
+      request as {},
       callSettings
     ) as AsyncIterable<protos.google.cloud.dialogflow.cx.v3beta1.IEntityType>;
   }
diff --git a/packages/google-cloud-dialogflow-cx/src/v3beta1/environments_client.ts b/packages/google-cloud-dialogflow-cx/src/v3beta1/environments_client.ts
index 9acf50525ef..42553f4c679 100644
--- a/packages/google-cloud-dialogflow-cx/src/v3beta1/environments_client.ts
+++ b/packages/google-cloud-dialogflow-cx/src/v3beta1/environments_client.ts
@@ -32,7 +32,6 @@ import {
 } from 'google-gax';
 
 import {Transform} from 'stream';
-import {RequestType} from 'google-gax/build/src/apitypes';
 import * as protos from '../../protos/protos';
 import jsonProtos = require('../../protos/protos.json');
 /**
@@ -438,7 +437,8 @@ export class EnvironmentsClient {
       const apiCall = this._gaxModule.createApiCall(
         callPromise,
         this._defaults[methodName],
-        descriptor
+        descriptor,
+        this._opts.fallback
       );
 
       this.innerApiCalls[methodName] = apiCall;
@@ -843,7 +843,7 @@ export class EnvironmentsClient {
     const decodeOperation = new gax.Operation(
       operation,
       this.descriptors.longrunning.createEnvironment,
-      gax.createDefaultBackoffSettings()
+      this._gaxModule.createDefaultBackoffSettings()
     );
     return decodeOperation as LROperation<
       protos.google.cloud.dialogflow.cx.v3beta1.Environment,
@@ -990,7 +990,7 @@ export class EnvironmentsClient {
     const decodeOperation = new gax.Operation(
       operation,
       this.descriptors.longrunning.updateEnvironment,
-      gax.createDefaultBackoffSettings()
+      this._gaxModule.createDefaultBackoffSettings()
     );
     return decodeOperation as LROperation<
       protos.google.cloud.dialogflow.cx.v3beta1.Environment,
@@ -1135,7 +1135,7 @@ export class EnvironmentsClient {
     const decodeOperation = new gax.Operation(
       operation,
       this.descriptors.longrunning.runContinuousTest,
-      gax.createDefaultBackoffSettings()
+      this._gaxModule.createDefaultBackoffSettings()
     );
     return decodeOperation as LROperation<
       protos.google.cloud.dialogflow.cx.v3beta1.RunContinuousTestResponse,
@@ -1285,7 +1285,7 @@ export class EnvironmentsClient {
     const decodeOperation = new gax.Operation(
       operation,
       this.descriptors.longrunning.deployFlow,
-      gax.createDefaultBackoffSettings()
+      this._gaxModule.createDefaultBackoffSettings()
     );
     return decodeOperation as LROperation<
       protos.google.cloud.dialogflow.cx.v3beta1.DeployFlowResponse,
@@ -1433,7 +1433,7 @@ export class EnvironmentsClient {
     const callSettings = defaultCallSettings.merge(options);
     this.initialize();
     return this.descriptors.page.listEnvironments.createStream(
-      this.innerApiCalls.listEnvironments as gax.GaxCall,
+      this.innerApiCalls.listEnvironments as GaxCall,
       request,
       callSettings
     );
@@ -1483,7 +1483,7 @@ export class EnvironmentsClient {
     this.initialize();
     return this.descriptors.page.listEnvironments.asyncIterate(
       this.innerApiCalls['listEnvironments'] as GaxCall,
-      request as unknown as RequestType,
+      request as {},
       callSettings
     ) as AsyncIterable<protos.google.cloud.dialogflow.cx.v3beta1.IEnvironment>;
   }
@@ -1634,7 +1634,7 @@ export class EnvironmentsClient {
     const callSettings = defaultCallSettings.merge(options);
     this.initialize();
     return this.descriptors.page.lookupEnvironmentHistory.createStream(
-      this.innerApiCalls.lookupEnvironmentHistory as gax.GaxCall,
+      this.innerApiCalls.lookupEnvironmentHistory as GaxCall,
       request,
       callSettings
     );
@@ -1685,7 +1685,7 @@ export class EnvironmentsClient {
     this.initialize();
     return this.descriptors.page.lookupEnvironmentHistory.asyncIterate(
       this.innerApiCalls['lookupEnvironmentHistory'] as GaxCall,
-      request as unknown as RequestType,
+      request as {},
       callSettings
     ) as AsyncIterable<protos.google.cloud.dialogflow.cx.v3beta1.IEnvironment>;
   }
@@ -1836,7 +1836,7 @@ export class EnvironmentsClient {
     const callSettings = defaultCallSettings.merge(options);
     this.initialize();
     return this.descriptors.page.listContinuousTestResults.createStream(
-      this.innerApiCalls.listContinuousTestResults as gax.GaxCall,
+      this.innerApiCalls.listContinuousTestResults as GaxCall,
       request,
       callSettings
     );
@@ -1887,7 +1887,7 @@ export class EnvironmentsClient {
     this.initialize();
     return this.descriptors.page.listContinuousTestResults.asyncIterate(
       this.innerApiCalls['listContinuousTestResults'] as GaxCall,
-      request as unknown as RequestType,
+      request as {},
       callSettings
     ) as AsyncIterable<protos.google.cloud.dialogflow.cx.v3beta1.IContinuousTestResult>;
   }
diff --git a/packages/google-cloud-dialogflow-cx/src/v3beta1/experiments_client.ts b/packages/google-cloud-dialogflow-cx/src/v3beta1/experiments_client.ts
index 92e322dbc3f..47bba5318d8 100644
--- a/packages/google-cloud-dialogflow-cx/src/v3beta1/experiments_client.ts
+++ b/packages/google-cloud-dialogflow-cx/src/v3beta1/experiments_client.ts
@@ -31,7 +31,6 @@ import {
 } from 'google-gax';
 
 import {Transform} from 'stream';
-import {RequestType} from 'google-gax/build/src/apitypes';
 import * as protos from '../../protos/protos';
 import jsonProtos = require('../../protos/protos.json');
 /**
@@ -40,7 +39,7 @@ import jsonProtos = require('../../protos/protos.json');
  * This file defines retry strategy and timeouts for all API methods in this library.
  */
 import * as gapicConfig from './experiments_client_config.json';
-import {operationsProtos} from 'google-gax';
+
 const version = require('../../../package.json').version;
 
 /**
@@ -377,7 +376,8 @@ export class ExperimentsClient {
       const apiCall = this._gaxModule.createApiCall(
         callPromise,
         this._defaults[methodName],
-        descriptor
+        descriptor,
+        this._opts.fallback
       );
 
       this.innerApiCalls[methodName] = apiCall;
@@ -1184,7 +1184,7 @@ export class ExperimentsClient {
     const callSettings = defaultCallSettings.merge(options);
     this.initialize();
     return this.descriptors.page.listExperiments.createStream(
-      this.innerApiCalls.listExperiments as gax.GaxCall,
+      this.innerApiCalls.listExperiments as GaxCall,
       request,
       callSettings
     );
@@ -1235,7 +1235,7 @@ export class ExperimentsClient {
     this.initialize();
     return this.descriptors.page.listExperiments.asyncIterate(
       this.innerApiCalls['listExperiments'] as GaxCall,
-      request as unknown as RequestType,
+      request as {},
       callSettings
     ) as AsyncIterable<protos.google.cloud.dialogflow.cx.v3beta1.IExperiment>;
   }
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 1569fac5d6e..c78e34dd7df 100644
--- a/packages/google-cloud-dialogflow-cx/src/v3beta1/flows_client.ts
+++ b/packages/google-cloud-dialogflow-cx/src/v3beta1/flows_client.ts
@@ -32,7 +32,6 @@ import {
 } from 'google-gax';
 
 import {Transform} from 'stream';
-import {RequestType} from 'google-gax/build/src/apitypes';
 import * as protos from '../../protos/protos';
 import jsonProtos = require('../../protos/protos.json');
 /**
@@ -418,7 +417,8 @@ export class FlowsClient {
       const apiCall = this._gaxModule.createApiCall(
         callPromise,
         this._defaults[methodName],
-        descriptor
+        descriptor,
+        this._opts.fallback
       );
 
       this.innerApiCalls[methodName] = apiCall;
@@ -1269,7 +1269,7 @@ export class FlowsClient {
     const decodeOperation = new gax.Operation(
       operation,
       this.descriptors.longrunning.trainFlow,
-      gax.createDefaultBackoffSettings()
+      this._gaxModule.createDefaultBackoffSettings()
     );
     return decodeOperation as LROperation<
       protos.google.protobuf.Empty,
@@ -1433,7 +1433,7 @@ export class FlowsClient {
     const decodeOperation = new gax.Operation(
       operation,
       this.descriptors.longrunning.importFlow,
-      gax.createDefaultBackoffSettings()
+      this._gaxModule.createDefaultBackoffSettings()
     );
     return decodeOperation as LROperation<
       protos.google.cloud.dialogflow.cx.v3beta1.ImportFlowResponse,
@@ -1596,7 +1596,7 @@ export class FlowsClient {
     const decodeOperation = new gax.Operation(
       operation,
       this.descriptors.longrunning.exportFlow,
-      gax.createDefaultBackoffSettings()
+      this._gaxModule.createDefaultBackoffSettings()
     );
     return decodeOperation as LROperation<
       protos.google.cloud.dialogflow.cx.v3beta1.ExportFlowResponse,
@@ -1772,7 +1772,7 @@ export class FlowsClient {
     const callSettings = defaultCallSettings.merge(options);
     this.initialize();
     return this.descriptors.page.listFlows.createStream(
-      this.innerApiCalls.listFlows as gax.GaxCall,
+      this.innerApiCalls.listFlows as GaxCall,
       request,
       callSettings
     );
@@ -1836,7 +1836,7 @@ export class FlowsClient {
     this.initialize();
     return this.descriptors.page.listFlows.asyncIterate(
       this.innerApiCalls['listFlows'] as GaxCall,
-      request as unknown as RequestType,
+      request as {},
       callSettings
     ) as AsyncIterable<protos.google.cloud.dialogflow.cx.v3beta1.IFlow>;
   }
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 e2efb5d158e..2fc59d56b05 100644
--- a/packages/google-cloud-dialogflow-cx/src/v3beta1/intents_client.ts
+++ b/packages/google-cloud-dialogflow-cx/src/v3beta1/intents_client.ts
@@ -31,7 +31,6 @@ import {
 } from 'google-gax';
 
 import {Transform} from 'stream';
-import {RequestType} from 'google-gax/build/src/apitypes';
 import * as protos from '../../protos/protos';
 import jsonProtos = require('../../protos/protos.json');
 /**
@@ -40,7 +39,7 @@ import jsonProtos = require('../../protos/protos.json');
  * This file defines retry strategy and timeouts for all API methods in this library.
  */
 import * as gapicConfig from './intents_client_config.json';
-import {operationsProtos} from 'google-gax';
+
 const version = require('../../../package.json').version;
 
 /**
@@ -375,7 +374,8 @@ export class IntentsClient {
       const apiCall = this._gaxModule.createApiCall(
         callPromise,
         this._defaults[methodName],
-        descriptor
+        descriptor,
+        this._opts.fallback
       );
 
       this.innerApiCalls[methodName] = apiCall;
@@ -1043,7 +1043,7 @@ export class IntentsClient {
     const callSettings = defaultCallSettings.merge(options);
     this.initialize();
     return this.descriptors.page.listIntents.createStream(
-      this.innerApiCalls.listIntents as gax.GaxCall,
+      this.innerApiCalls.listIntents as GaxCall,
       request,
       callSettings
     );
@@ -1106,7 +1106,7 @@ export class IntentsClient {
     this.initialize();
     return this.descriptors.page.listIntents.asyncIterate(
       this.innerApiCalls['listIntents'] as GaxCall,
-      request as unknown as RequestType,
+      request as {},
       callSettings
     ) as AsyncIterable<protos.google.cloud.dialogflow.cx.v3beta1.IIntent>;
   }
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 4f5828320b5..99414124794 100644
--- a/packages/google-cloud-dialogflow-cx/src/v3beta1/pages_client.ts
+++ b/packages/google-cloud-dialogflow-cx/src/v3beta1/pages_client.ts
@@ -31,7 +31,6 @@ import {
 } from 'google-gax';
 
 import {Transform} from 'stream';
-import {RequestType} from 'google-gax/build/src/apitypes';
 import * as protos from '../../protos/protos';
 import jsonProtos = require('../../protos/protos.json');
 /**
@@ -40,7 +39,7 @@ import jsonProtos = require('../../protos/protos.json');
  * This file defines retry strategy and timeouts for all API methods in this library.
  */
 import * as gapicConfig from './pages_client_config.json';
-import {operationsProtos} from 'google-gax';
+
 const version = require('../../../package.json').version;
 
 /**
@@ -375,7 +374,8 @@ export class PagesClient {
       const apiCall = this._gaxModule.createApiCall(
         callPromise,
         this._defaults[methodName],
-        descriptor
+        descriptor,
+        this._opts.fallback
       );
 
       this.innerApiCalls[methodName] = apiCall;
@@ -1078,7 +1078,7 @@ export class PagesClient {
     const callSettings = defaultCallSettings.merge(options);
     this.initialize();
     return this.descriptors.page.listPages.createStream(
-      this.innerApiCalls.listPages as gax.GaxCall,
+      this.innerApiCalls.listPages as GaxCall,
       request,
       callSettings
     );
@@ -1151,7 +1151,7 @@ export class PagesClient {
     this.initialize();
     return this.descriptors.page.listPages.asyncIterate(
       this.innerApiCalls['listPages'] as GaxCall,
-      request as unknown as RequestType,
+      request as {},
       callSettings
     ) as AsyncIterable<protos.google.cloud.dialogflow.cx.v3beta1.IPage>;
   }
diff --git a/packages/google-cloud-dialogflow-cx/src/v3beta1/security_settings_service_client.ts b/packages/google-cloud-dialogflow-cx/src/v3beta1/security_settings_service_client.ts
index 627fb8751b2..ea038d65f3e 100644
--- a/packages/google-cloud-dialogflow-cx/src/v3beta1/security_settings_service_client.ts
+++ b/packages/google-cloud-dialogflow-cx/src/v3beta1/security_settings_service_client.ts
@@ -31,7 +31,6 @@ import {
 } from 'google-gax';
 
 import {Transform} from 'stream';
-import {RequestType} from 'google-gax/build/src/apitypes';
 import * as protos from '../../protos/protos';
 import jsonProtos = require('../../protos/protos.json');
 /**
@@ -40,7 +39,7 @@ import jsonProtos = require('../../protos/protos.json');
  * This file defines retry strategy and timeouts for all API methods in this library.
  */
 import * as gapicConfig from './security_settings_service_client_config.json';
-import {operationsProtos} from 'google-gax';
+
 const version = require('../../../package.json').version;
 
 /**
@@ -393,7 +392,8 @@ export class SecuritySettingsServiceClient {
       const apiCall = this._gaxModule.createApiCall(
         callPromise,
         this._defaults[methodName],
-        descriptor
+        descriptor,
+        this._opts.fallback
       );
 
       this.innerApiCalls[methodName] = apiCall;
@@ -1012,7 +1012,7 @@ export class SecuritySettingsServiceClient {
     const callSettings = defaultCallSettings.merge(options);
     this.initialize();
     return this.descriptors.page.listSecuritySettings.createStream(
-      this.innerApiCalls.listSecuritySettings as gax.GaxCall,
+      this.innerApiCalls.listSecuritySettings as GaxCall,
       request,
       callSettings
     );
@@ -1062,7 +1062,7 @@ export class SecuritySettingsServiceClient {
     this.initialize();
     return this.descriptors.page.listSecuritySettings.asyncIterate(
       this.innerApiCalls['listSecuritySettings'] as GaxCall,
-      request as unknown as RequestType,
+      request as {},
       callSettings
     ) as AsyncIterable<protos.google.cloud.dialogflow.cx.v3beta1.ISecuritySettings>;
   }
diff --git a/packages/google-cloud-dialogflow-cx/src/v3beta1/session_entity_types_client.ts b/packages/google-cloud-dialogflow-cx/src/v3beta1/session_entity_types_client.ts
index f0951f0afb6..bf691cebdf5 100644
--- a/packages/google-cloud-dialogflow-cx/src/v3beta1/session_entity_types_client.ts
+++ b/packages/google-cloud-dialogflow-cx/src/v3beta1/session_entity_types_client.ts
@@ -31,7 +31,6 @@ import {
 } from 'google-gax';
 
 import {Transform} from 'stream';
-import {RequestType} from 'google-gax/build/src/apitypes';
 import * as protos from '../../protos/protos';
 import jsonProtos = require('../../protos/protos.json');
 /**
@@ -40,7 +39,7 @@ import jsonProtos = require('../../protos/protos.json');
  * This file defines retry strategy and timeouts for all API methods in this library.
  */
 import * as gapicConfig from './session_entity_types_client_config.json';
-import {operationsProtos} from 'google-gax';
+
 const version = require('../../../package.json').version;
 
 /**
@@ -379,7 +378,8 @@ export class SessionEntityTypesClient {
       const apiCall = this._gaxModule.createApiCall(
         callPromise,
         this._defaults[methodName],
-        descriptor
+        descriptor,
+        this._opts.fallback
       );
 
       this.innerApiCalls[methodName] = apiCall;
@@ -1025,7 +1025,7 @@ export class SessionEntityTypesClient {
     const callSettings = defaultCallSettings.merge(options);
     this.initialize();
     return this.descriptors.page.listSessionEntityTypes.createStream(
-      this.innerApiCalls.listSessionEntityTypes as gax.GaxCall,
+      this.innerApiCalls.listSessionEntityTypes as GaxCall,
       request,
       callSettings
     );
@@ -1079,7 +1079,7 @@ export class SessionEntityTypesClient {
     this.initialize();
     return this.descriptors.page.listSessionEntityTypes.asyncIterate(
       this.innerApiCalls['listSessionEntityTypes'] as GaxCall,
-      request as unknown as RequestType,
+      request as {},
       callSettings
     ) as AsyncIterable<protos.google.cloud.dialogflow.cx.v3beta1.ISessionEntityType>;
   }
diff --git a/packages/google-cloud-dialogflow-cx/src/v3beta1/sessions_client.ts b/packages/google-cloud-dialogflow-cx/src/v3beta1/sessions_client.ts
index 2c6918017b4..ccb6c8c0c31 100644
--- a/packages/google-cloud-dialogflow-cx/src/v3beta1/sessions_client.ts
+++ b/packages/google-cloud-dialogflow-cx/src/v3beta1/sessions_client.ts
@@ -38,7 +38,7 @@ import jsonProtos = require('../../protos/protos.json');
  * This file defines retry strategy and timeouts for all API methods in this library.
  */
 import * as gapicConfig from './sessions_client_config.json';
-import {operationsProtos} from 'google-gax';
+
 const version = require('../../../package.json').version;
 
 /**
@@ -383,7 +383,8 @@ export class SessionsClient {
       const apiCall = this._gaxModule.createApiCall(
         callPromise,
         this._defaults[methodName],
-        descriptor
+        descriptor,
+        this._opts.fallback
       );
 
       this.innerApiCalls[methodName] = apiCall;
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 a2eba83a579..45c17464c32 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
@@ -32,7 +32,6 @@ import {
 } from 'google-gax';
 
 import {Transform} from 'stream';
-import {RequestType} from 'google-gax/build/src/apitypes';
 import * as protos from '../../protos/protos';
 import jsonProtos = require('../../protos/protos.json');
 /**
@@ -437,7 +436,8 @@ export class TestCasesClient {
       const apiCall = this._gaxModule.createApiCall(
         callPromise,
         this._defaults[methodName],
-        descriptor
+        descriptor,
+        this._opts.fallback
       );
 
       this.innerApiCalls[methodName] = apiCall;
@@ -1239,7 +1239,7 @@ export class TestCasesClient {
     const decodeOperation = new gax.Operation(
       operation,
       this.descriptors.longrunning.runTestCase,
-      gax.createDefaultBackoffSettings()
+      this._gaxModule.createDefaultBackoffSettings()
     );
     return decodeOperation as LROperation<
       protos.google.cloud.dialogflow.cx.v3beta1.RunTestCaseResponse,
@@ -1391,7 +1391,7 @@ export class TestCasesClient {
     const decodeOperation = new gax.Operation(
       operation,
       this.descriptors.longrunning.batchRunTestCases,
-      gax.createDefaultBackoffSettings()
+      this._gaxModule.createDefaultBackoffSettings()
     );
     return decodeOperation as LROperation<
       protos.google.cloud.dialogflow.cx.v3beta1.BatchRunTestCasesResponse,
@@ -1550,7 +1550,7 @@ export class TestCasesClient {
     const decodeOperation = new gax.Operation(
       operation,
       this.descriptors.longrunning.importTestCases,
-      gax.createDefaultBackoffSettings()
+      this._gaxModule.createDefaultBackoffSettings()
     );
     return decodeOperation as LROperation<
       protos.google.cloud.dialogflow.cx.v3beta1.ImportTestCasesResponse,
@@ -1721,7 +1721,7 @@ export class TestCasesClient {
     const decodeOperation = new gax.Operation(
       operation,
       this.descriptors.longrunning.exportTestCases,
-      gax.createDefaultBackoffSettings()
+      this._gaxModule.createDefaultBackoffSettings()
     );
     return decodeOperation as LROperation<
       protos.google.cloud.dialogflow.cx.v3beta1.ExportTestCasesResponse,
@@ -1875,7 +1875,7 @@ export class TestCasesClient {
     const callSettings = defaultCallSettings.merge(options);
     this.initialize();
     return this.descriptors.page.listTestCases.createStream(
-      this.innerApiCalls.listTestCases as gax.GaxCall,
+      this.innerApiCalls.listTestCases as GaxCall,
       request,
       callSettings
     );
@@ -1928,7 +1928,7 @@ export class TestCasesClient {
     this.initialize();
     return this.descriptors.page.listTestCases.asyncIterate(
       this.innerApiCalls['listTestCases'] as GaxCall,
-      request as unknown as RequestType,
+      request as {},
       callSettings
     ) as AsyncIterable<protos.google.cloud.dialogflow.cx.v3beta1.ITestCase>;
   }
@@ -2127,7 +2127,7 @@ export class TestCasesClient {
     const callSettings = defaultCallSettings.merge(options);
     this.initialize();
     return this.descriptors.page.listTestCaseResults.createStream(
-      this.innerApiCalls.listTestCaseResults as gax.GaxCall,
+      this.innerApiCalls.listTestCaseResults as GaxCall,
       request,
       callSettings
     );
@@ -2204,7 +2204,7 @@ export class TestCasesClient {
     this.initialize();
     return this.descriptors.page.listTestCaseResults.asyncIterate(
       this.innerApiCalls['listTestCaseResults'] as GaxCall,
-      request as unknown as RequestType,
+      request as {},
       callSettings
     ) as AsyncIterable<protos.google.cloud.dialogflow.cx.v3beta1.ITestCaseResult>;
   }
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 f1e02a24010..61cf57a0849 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
@@ -31,7 +31,6 @@ import {
 } from 'google-gax';
 
 import {Transform} from 'stream';
-import {RequestType} from 'google-gax/build/src/apitypes';
 import * as protos from '../../protos/protos';
 import jsonProtos = require('../../protos/protos.json');
 /**
@@ -40,7 +39,7 @@ import jsonProtos = require('../../protos/protos.json');
  * This file defines retry strategy and timeouts for all API methods in this library.
  */
 import * as gapicConfig from './transition_route_groups_client_config.json';
-import {operationsProtos} from 'google-gax';
+
 const version = require('../../../package.json').version;
 
 /**
@@ -377,7 +376,8 @@ export class TransitionRouteGroupsClient {
       const apiCall = this._gaxModule.createApiCall(
         callPromise,
         this._defaults[methodName],
-        descriptor
+        descriptor,
+        this._opts.fallback
       );
 
       this.innerApiCalls[methodName] = apiCall;
@@ -1087,7 +1087,7 @@ export class TransitionRouteGroupsClient {
     const callSettings = defaultCallSettings.merge(options);
     this.initialize();
     return this.descriptors.page.listTransitionRouteGroups.createStream(
-      this.innerApiCalls.listTransitionRouteGroups as gax.GaxCall,
+      this.innerApiCalls.listTransitionRouteGroups as GaxCall,
       request,
       callSettings
     );
@@ -1151,7 +1151,7 @@ export class TransitionRouteGroupsClient {
     this.initialize();
     return this.descriptors.page.listTransitionRouteGroups.asyncIterate(
       this.innerApiCalls['listTransitionRouteGroups'] as GaxCall,
-      request as unknown as RequestType,
+      request as {},
       callSettings
     ) as AsyncIterable<protos.google.cloud.dialogflow.cx.v3beta1.ITransitionRouteGroup>;
   }
diff --git a/packages/google-cloud-dialogflow-cx/src/v3beta1/versions_client.ts b/packages/google-cloud-dialogflow-cx/src/v3beta1/versions_client.ts
index 1a384c5232b..e9c03b354d4 100644
--- a/packages/google-cloud-dialogflow-cx/src/v3beta1/versions_client.ts
+++ b/packages/google-cloud-dialogflow-cx/src/v3beta1/versions_client.ts
@@ -32,7 +32,6 @@ import {
 } from 'google-gax';
 
 import {Transform} from 'stream';
-import {RequestType} from 'google-gax/build/src/apitypes';
 import * as protos from '../../protos/protos';
 import jsonProtos = require('../../protos/protos.json');
 /**
@@ -404,7 +403,8 @@ export class VersionsClient {
       const apiCall = this._gaxModule.createApiCall(
         callPromise,
         this._defaults[methodName],
-        descriptor
+        descriptor,
+        this._opts.fallback
       );
 
       this.innerApiCalls[methodName] = apiCall;
@@ -1017,7 +1017,7 @@ export class VersionsClient {
     const decodeOperation = new gax.Operation(
       operation,
       this.descriptors.longrunning.createVersion,
-      gax.createDefaultBackoffSettings()
+      this._gaxModule.createDefaultBackoffSettings()
     );
     return decodeOperation as LROperation<
       protos.google.cloud.dialogflow.cx.v3beta1.Version,
@@ -1167,7 +1167,7 @@ export class VersionsClient {
     const decodeOperation = new gax.Operation(
       operation,
       this.descriptors.longrunning.loadVersion,
-      gax.createDefaultBackoffSettings()
+      this._gaxModule.createDefaultBackoffSettings()
     );
     return decodeOperation as LROperation<
       protos.google.protobuf.Empty,
@@ -1317,7 +1317,7 @@ export class VersionsClient {
     const callSettings = defaultCallSettings.merge(options);
     this.initialize();
     return this.descriptors.page.listVersions.createStream(
-      this.innerApiCalls.listVersions as gax.GaxCall,
+      this.innerApiCalls.listVersions as GaxCall,
       request,
       callSettings
     );
@@ -1368,7 +1368,7 @@ export class VersionsClient {
     this.initialize();
     return this.descriptors.page.listVersions.asyncIterate(
       this.innerApiCalls['listVersions'] as GaxCall,
-      request as unknown as RequestType,
+      request as {},
       callSettings
     ) as AsyncIterable<protos.google.cloud.dialogflow.cx.v3beta1.IVersion>;
   }
diff --git a/packages/google-cloud-dialogflow-cx/src/v3beta1/webhooks_client.ts b/packages/google-cloud-dialogflow-cx/src/v3beta1/webhooks_client.ts
index 1bf1d15459d..bceb1dabe69 100644
--- a/packages/google-cloud-dialogflow-cx/src/v3beta1/webhooks_client.ts
+++ b/packages/google-cloud-dialogflow-cx/src/v3beta1/webhooks_client.ts
@@ -31,7 +31,6 @@ import {
 } from 'google-gax';
 
 import {Transform} from 'stream';
-import {RequestType} from 'google-gax/build/src/apitypes';
 import * as protos from '../../protos/protos';
 import jsonProtos = require('../../protos/protos.json');
 /**
@@ -40,7 +39,7 @@ import jsonProtos = require('../../protos/protos.json');
  * This file defines retry strategy and timeouts for all API methods in this library.
  */
 import * as gapicConfig from './webhooks_client_config.json';
-import {operationsProtos} from 'google-gax';
+
 const version = require('../../../package.json').version;
 
 /**
@@ -382,7 +381,8 @@ export class WebhooksClient {
       const apiCall = this._gaxModule.createApiCall(
         callPromise,
         this._defaults[methodName],
-        descriptor
+        descriptor,
+        this._opts.fallback
       );
 
       this.innerApiCalls[methodName] = apiCall;
@@ -991,7 +991,7 @@ export class WebhooksClient {
     const callSettings = defaultCallSettings.merge(options);
     this.initialize();
     return this.descriptors.page.listWebhooks.createStream(
-      this.innerApiCalls.listWebhooks as gax.GaxCall,
+      this.innerApiCalls.listWebhooks as GaxCall,
       request,
       callSettings
     );
@@ -1041,7 +1041,7 @@ export class WebhooksClient {
     this.initialize();
     return this.descriptors.page.listWebhooks.asyncIterate(
       this.innerApiCalls['listWebhooks'] as GaxCall,
-      request as unknown as RequestType,
+      request as {},
       callSettings
     ) as AsyncIterable<protos.google.cloud.dialogflow.cx.v3beta1.IWebhook>;
   }
diff --git a/packages/google-cloud-dialogflow-cx/test/gapic_agents_v3.ts b/packages/google-cloud-dialogflow-cx/test/gapic_agents_v3.ts
index f835849a26f..d7152f346eb 100644
--- a/packages/google-cloud-dialogflow-cx/test/gapic_agents_v3.ts
+++ b/packages/google-cloud-dialogflow-cx/test/gapic_agents_v3.ts
@@ -150,99 +150,101 @@ function stubAsyncIterationCall<ResponseType>(
 }
 
 describe('v3.AgentsClient', () => {
-  it('has servicePath', () => {
-    const servicePath = agentsModule.v3.AgentsClient.servicePath;
-    assert(servicePath);
-  });
-
-  it('has apiEndpoint', () => {
-    const apiEndpoint = agentsModule.v3.AgentsClient.apiEndpoint;
-    assert(apiEndpoint);
-  });
-
-  it('has port', () => {
-    const port = agentsModule.v3.AgentsClient.port;
-    assert(port);
-    assert(typeof port === 'number');
-  });
+  describe('Common methods', () => {
+    it('has servicePath', () => {
+      const servicePath = agentsModule.v3.AgentsClient.servicePath;
+      assert(servicePath);
+    });
 
-  it('should create a client with no option', () => {
-    const client = new agentsModule.v3.AgentsClient();
-    assert(client);
-  });
+    it('has apiEndpoint', () => {
+      const apiEndpoint = agentsModule.v3.AgentsClient.apiEndpoint;
+      assert(apiEndpoint);
+    });
 
-  it('should create a client with gRPC fallback', () => {
-    const client = new agentsModule.v3.AgentsClient({
-      fallback: true,
+    it('has port', () => {
+      const port = agentsModule.v3.AgentsClient.port;
+      assert(port);
+      assert(typeof port === 'number');
     });
-    assert(client);
-  });
 
-  it('has initialize method and supports deferred initialization', async () => {
-    const client = new agentsModule.v3.AgentsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('should create a client with no option', () => {
+      const client = new agentsModule.v3.AgentsClient();
+      assert(client);
     });
-    assert.strictEqual(client.agentsStub, undefined);
-    await client.initialize();
-    assert(client.agentsStub);
-  });
 
-  it('has close method for the initialized client', done => {
-    const client = new agentsModule.v3.AgentsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('should create a client with gRPC fallback', () => {
+      const client = new agentsModule.v3.AgentsClient({
+        fallback: true,
+      });
+      assert(client);
     });
-    client.initialize();
-    assert(client.agentsStub);
-    client.close().then(() => {
-      done();
+
+    it('has initialize method and supports deferred initialization', async () => {
+      const client = new agentsModule.v3.AgentsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      assert.strictEqual(client.agentsStub, undefined);
+      await client.initialize();
+      assert(client.agentsStub);
     });
-  });
 
-  it('has close method for the non-initialized client', done => {
-    const client = new agentsModule.v3.AgentsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('has close method for the initialized client', done => {
+      const client = new agentsModule.v3.AgentsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      client.initialize();
+      assert(client.agentsStub);
+      client.close().then(() => {
+        done();
+      });
     });
-    assert.strictEqual(client.agentsStub, undefined);
-    client.close().then(() => {
-      done();
+
+    it('has close method for the non-initialized client', done => {
+      const client = new agentsModule.v3.AgentsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      assert.strictEqual(client.agentsStub, undefined);
+      client.close().then(() => {
+        done();
+      });
     });
-  });
 
-  it('has getProjectId method', async () => {
-    const fakeProjectId = 'fake-project-id';
-    const client = new agentsModule.v3.AgentsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('has getProjectId method', async () => {
+      const fakeProjectId = 'fake-project-id';
+      const client = new agentsModule.v3.AgentsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      client.auth.getProjectId = sinon.stub().resolves(fakeProjectId);
+      const result = await client.getProjectId();
+      assert.strictEqual(result, fakeProjectId);
+      assert((client.auth.getProjectId as SinonStub).calledWithExactly());
     });
-    client.auth.getProjectId = sinon.stub().resolves(fakeProjectId);
-    const result = await client.getProjectId();
-    assert.strictEqual(result, fakeProjectId);
-    assert((client.auth.getProjectId as SinonStub).calledWithExactly());
-  });
 
-  it('has getProjectId method with callback', async () => {
-    const fakeProjectId = 'fake-project-id';
-    const client = new agentsModule.v3.AgentsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
-    });
-    client.auth.getProjectId = sinon
-      .stub()
-      .callsArgWith(0, null, fakeProjectId);
-    const promise = new Promise((resolve, reject) => {
-      client.getProjectId((err?: Error | null, projectId?: string | null) => {
-        if (err) {
-          reject(err);
-        } else {
-          resolve(projectId);
-        }
+    it('has getProjectId method with callback', async () => {
+      const fakeProjectId = 'fake-project-id';
+      const client = new agentsModule.v3.AgentsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      client.auth.getProjectId = sinon
+        .stub()
+        .callsArgWith(0, null, fakeProjectId);
+      const promise = new Promise((resolve, reject) => {
+        client.getProjectId((err?: Error | null, projectId?: string | null) => {
+          if (err) {
+            reject(err);
+          } else {
+            resolve(projectId);
+          }
+        });
       });
+      const result = await promise;
+      assert.strictEqual(result, fakeProjectId);
     });
-    const result = await promise;
-    assert.strictEqual(result, fakeProjectId);
   });
 
   describe('getAgent', () => {
diff --git a/packages/google-cloud-dialogflow-cx/test/gapic_agents_v3beta1.ts b/packages/google-cloud-dialogflow-cx/test/gapic_agents_v3beta1.ts
index 486b96ab8f3..a1646cd3d00 100644
--- a/packages/google-cloud-dialogflow-cx/test/gapic_agents_v3beta1.ts
+++ b/packages/google-cloud-dialogflow-cx/test/gapic_agents_v3beta1.ts
@@ -150,99 +150,101 @@ function stubAsyncIterationCall<ResponseType>(
 }
 
 describe('v3beta1.AgentsClient', () => {
-  it('has servicePath', () => {
-    const servicePath = agentsModule.v3beta1.AgentsClient.servicePath;
-    assert(servicePath);
-  });
-
-  it('has apiEndpoint', () => {
-    const apiEndpoint = agentsModule.v3beta1.AgentsClient.apiEndpoint;
-    assert(apiEndpoint);
-  });
-
-  it('has port', () => {
-    const port = agentsModule.v3beta1.AgentsClient.port;
-    assert(port);
-    assert(typeof port === 'number');
-  });
+  describe('Common methods', () => {
+    it('has servicePath', () => {
+      const servicePath = agentsModule.v3beta1.AgentsClient.servicePath;
+      assert(servicePath);
+    });
 
-  it('should create a client with no option', () => {
-    const client = new agentsModule.v3beta1.AgentsClient();
-    assert(client);
-  });
+    it('has apiEndpoint', () => {
+      const apiEndpoint = agentsModule.v3beta1.AgentsClient.apiEndpoint;
+      assert(apiEndpoint);
+    });
 
-  it('should create a client with gRPC fallback', () => {
-    const client = new agentsModule.v3beta1.AgentsClient({
-      fallback: true,
+    it('has port', () => {
+      const port = agentsModule.v3beta1.AgentsClient.port;
+      assert(port);
+      assert(typeof port === 'number');
     });
-    assert(client);
-  });
 
-  it('has initialize method and supports deferred initialization', async () => {
-    const client = new agentsModule.v3beta1.AgentsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('should create a client with no option', () => {
+      const client = new agentsModule.v3beta1.AgentsClient();
+      assert(client);
     });
-    assert.strictEqual(client.agentsStub, undefined);
-    await client.initialize();
-    assert(client.agentsStub);
-  });
 
-  it('has close method for the initialized client', done => {
-    const client = new agentsModule.v3beta1.AgentsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('should create a client with gRPC fallback', () => {
+      const client = new agentsModule.v3beta1.AgentsClient({
+        fallback: true,
+      });
+      assert(client);
     });
-    client.initialize();
-    assert(client.agentsStub);
-    client.close().then(() => {
-      done();
+
+    it('has initialize method and supports deferred initialization', async () => {
+      const client = new agentsModule.v3beta1.AgentsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      assert.strictEqual(client.agentsStub, undefined);
+      await client.initialize();
+      assert(client.agentsStub);
     });
-  });
 
-  it('has close method for the non-initialized client', done => {
-    const client = new agentsModule.v3beta1.AgentsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('has close method for the initialized client', done => {
+      const client = new agentsModule.v3beta1.AgentsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      client.initialize();
+      assert(client.agentsStub);
+      client.close().then(() => {
+        done();
+      });
     });
-    assert.strictEqual(client.agentsStub, undefined);
-    client.close().then(() => {
-      done();
+
+    it('has close method for the non-initialized client', done => {
+      const client = new agentsModule.v3beta1.AgentsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      assert.strictEqual(client.agentsStub, undefined);
+      client.close().then(() => {
+        done();
+      });
     });
-  });
 
-  it('has getProjectId method', async () => {
-    const fakeProjectId = 'fake-project-id';
-    const client = new agentsModule.v3beta1.AgentsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('has getProjectId method', async () => {
+      const fakeProjectId = 'fake-project-id';
+      const client = new agentsModule.v3beta1.AgentsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      client.auth.getProjectId = sinon.stub().resolves(fakeProjectId);
+      const result = await client.getProjectId();
+      assert.strictEqual(result, fakeProjectId);
+      assert((client.auth.getProjectId as SinonStub).calledWithExactly());
     });
-    client.auth.getProjectId = sinon.stub().resolves(fakeProjectId);
-    const result = await client.getProjectId();
-    assert.strictEqual(result, fakeProjectId);
-    assert((client.auth.getProjectId as SinonStub).calledWithExactly());
-  });
 
-  it('has getProjectId method with callback', async () => {
-    const fakeProjectId = 'fake-project-id';
-    const client = new agentsModule.v3beta1.AgentsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
-    });
-    client.auth.getProjectId = sinon
-      .stub()
-      .callsArgWith(0, null, fakeProjectId);
-    const promise = new Promise((resolve, reject) => {
-      client.getProjectId((err?: Error | null, projectId?: string | null) => {
-        if (err) {
-          reject(err);
-        } else {
-          resolve(projectId);
-        }
+    it('has getProjectId method with callback', async () => {
+      const fakeProjectId = 'fake-project-id';
+      const client = new agentsModule.v3beta1.AgentsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      client.auth.getProjectId = sinon
+        .stub()
+        .callsArgWith(0, null, fakeProjectId);
+      const promise = new Promise((resolve, reject) => {
+        client.getProjectId((err?: Error | null, projectId?: string | null) => {
+          if (err) {
+            reject(err);
+          } else {
+            resolve(projectId);
+          }
+        });
       });
+      const result = await promise;
+      assert.strictEqual(result, fakeProjectId);
     });
-    const result = await promise;
-    assert.strictEqual(result, fakeProjectId);
   });
 
   describe('getAgent', () => {
diff --git a/packages/google-cloud-dialogflow-cx/test/gapic_changelogs_v3.ts b/packages/google-cloud-dialogflow-cx/test/gapic_changelogs_v3.ts
index 86d99a2f3b8..2582d95ad9a 100644
--- a/packages/google-cloud-dialogflow-cx/test/gapic_changelogs_v3.ts
+++ b/packages/google-cloud-dialogflow-cx/test/gapic_changelogs_v3.ts
@@ -25,12 +25,7 @@ import * as changelogsModule from '../src';
 
 import {PassThrough} from 'stream';
 
-import {
-  protobuf,
-  LROperation,
-  operationsProtos,
-  LocationProtos,
-} from 'google-gax';
+import {protobuf, operationsProtos, LocationProtos} from 'google-gax';
 
 function generateSampleMessage<T extends object>(instance: T) {
   const filledObject = (
@@ -118,99 +113,101 @@ function stubAsyncIterationCall<ResponseType>(
 }
 
 describe('v3.ChangelogsClient', () => {
-  it('has servicePath', () => {
-    const servicePath = changelogsModule.v3.ChangelogsClient.servicePath;
-    assert(servicePath);
-  });
-
-  it('has apiEndpoint', () => {
-    const apiEndpoint = changelogsModule.v3.ChangelogsClient.apiEndpoint;
-    assert(apiEndpoint);
-  });
-
-  it('has port', () => {
-    const port = changelogsModule.v3.ChangelogsClient.port;
-    assert(port);
-    assert(typeof port === 'number');
-  });
-
-  it('should create a client with no option', () => {
-    const client = new changelogsModule.v3.ChangelogsClient();
-    assert(client);
-  });
+  describe('Common methods', () => {
+    it('has servicePath', () => {
+      const servicePath = changelogsModule.v3.ChangelogsClient.servicePath;
+      assert(servicePath);
+    });
 
-  it('should create a client with gRPC fallback', () => {
-    const client = new changelogsModule.v3.ChangelogsClient({
-      fallback: true,
+    it('has apiEndpoint', () => {
+      const apiEndpoint = changelogsModule.v3.ChangelogsClient.apiEndpoint;
+      assert(apiEndpoint);
     });
-    assert(client);
-  });
 
-  it('has initialize method and supports deferred initialization', async () => {
-    const client = new changelogsModule.v3.ChangelogsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('has port', () => {
+      const port = changelogsModule.v3.ChangelogsClient.port;
+      assert(port);
+      assert(typeof port === 'number');
     });
-    assert.strictEqual(client.changelogsStub, undefined);
-    await client.initialize();
-    assert(client.changelogsStub);
-  });
 
-  it('has close method for the initialized client', done => {
-    const client = new changelogsModule.v3.ChangelogsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('should create a client with no option', () => {
+      const client = new changelogsModule.v3.ChangelogsClient();
+      assert(client);
     });
-    client.initialize();
-    assert(client.changelogsStub);
-    client.close().then(() => {
-      done();
+
+    it('should create a client with gRPC fallback', () => {
+      const client = new changelogsModule.v3.ChangelogsClient({
+        fallback: true,
+      });
+      assert(client);
     });
-  });
 
-  it('has close method for the non-initialized client', done => {
-    const client = new changelogsModule.v3.ChangelogsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('has initialize method and supports deferred initialization', async () => {
+      const client = new changelogsModule.v3.ChangelogsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      assert.strictEqual(client.changelogsStub, undefined);
+      await client.initialize();
+      assert(client.changelogsStub);
     });
-    assert.strictEqual(client.changelogsStub, undefined);
-    client.close().then(() => {
-      done();
+
+    it('has close method for the initialized client', done => {
+      const client = new changelogsModule.v3.ChangelogsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      client.initialize();
+      assert(client.changelogsStub);
+      client.close().then(() => {
+        done();
+      });
     });
-  });
 
-  it('has getProjectId method', async () => {
-    const fakeProjectId = 'fake-project-id';
-    const client = new changelogsModule.v3.ChangelogsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('has close method for the non-initialized client', done => {
+      const client = new changelogsModule.v3.ChangelogsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      assert.strictEqual(client.changelogsStub, undefined);
+      client.close().then(() => {
+        done();
+      });
     });
-    client.auth.getProjectId = sinon.stub().resolves(fakeProjectId);
-    const result = await client.getProjectId();
-    assert.strictEqual(result, fakeProjectId);
-    assert((client.auth.getProjectId as SinonStub).calledWithExactly());
-  });
 
-  it('has getProjectId method with callback', async () => {
-    const fakeProjectId = 'fake-project-id';
-    const client = new changelogsModule.v3.ChangelogsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('has getProjectId method', async () => {
+      const fakeProjectId = 'fake-project-id';
+      const client = new changelogsModule.v3.ChangelogsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      client.auth.getProjectId = sinon.stub().resolves(fakeProjectId);
+      const result = await client.getProjectId();
+      assert.strictEqual(result, fakeProjectId);
+      assert((client.auth.getProjectId as SinonStub).calledWithExactly());
     });
-    client.auth.getProjectId = sinon
-      .stub()
-      .callsArgWith(0, null, fakeProjectId);
-    const promise = new Promise((resolve, reject) => {
-      client.getProjectId((err?: Error | null, projectId?: string | null) => {
-        if (err) {
-          reject(err);
-        } else {
-          resolve(projectId);
-        }
+
+    it('has getProjectId method with callback', async () => {
+      const fakeProjectId = 'fake-project-id';
+      const client = new changelogsModule.v3.ChangelogsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      client.auth.getProjectId = sinon
+        .stub()
+        .callsArgWith(0, null, fakeProjectId);
+      const promise = new Promise((resolve, reject) => {
+        client.getProjectId((err?: Error | null, projectId?: string | null) => {
+          if (err) {
+            reject(err);
+          } else {
+            resolve(projectId);
+          }
+        });
       });
+      const result = await promise;
+      assert.strictEqual(result, fakeProjectId);
     });
-    const result = await promise;
-    assert.strictEqual(result, fakeProjectId);
   });
 
   describe('getChangelog', () => {
diff --git a/packages/google-cloud-dialogflow-cx/test/gapic_changelogs_v3beta1.ts b/packages/google-cloud-dialogflow-cx/test/gapic_changelogs_v3beta1.ts
index f1aaaaf6ace..e778becf181 100644
--- a/packages/google-cloud-dialogflow-cx/test/gapic_changelogs_v3beta1.ts
+++ b/packages/google-cloud-dialogflow-cx/test/gapic_changelogs_v3beta1.ts
@@ -25,12 +25,7 @@ import * as changelogsModule from '../src';
 
 import {PassThrough} from 'stream';
 
-import {
-  protobuf,
-  LROperation,
-  operationsProtos,
-  LocationProtos,
-} from 'google-gax';
+import {protobuf, operationsProtos, LocationProtos} from 'google-gax';
 
 function generateSampleMessage<T extends object>(instance: T) {
   const filledObject = (
@@ -118,99 +113,101 @@ function stubAsyncIterationCall<ResponseType>(
 }
 
 describe('v3beta1.ChangelogsClient', () => {
-  it('has servicePath', () => {
-    const servicePath = changelogsModule.v3beta1.ChangelogsClient.servicePath;
-    assert(servicePath);
-  });
-
-  it('has apiEndpoint', () => {
-    const apiEndpoint = changelogsModule.v3beta1.ChangelogsClient.apiEndpoint;
-    assert(apiEndpoint);
-  });
-
-  it('has port', () => {
-    const port = changelogsModule.v3beta1.ChangelogsClient.port;
-    assert(port);
-    assert(typeof port === 'number');
-  });
-
-  it('should create a client with no option', () => {
-    const client = new changelogsModule.v3beta1.ChangelogsClient();
-    assert(client);
-  });
+  describe('Common methods', () => {
+    it('has servicePath', () => {
+      const servicePath = changelogsModule.v3beta1.ChangelogsClient.servicePath;
+      assert(servicePath);
+    });
 
-  it('should create a client with gRPC fallback', () => {
-    const client = new changelogsModule.v3beta1.ChangelogsClient({
-      fallback: true,
+    it('has apiEndpoint', () => {
+      const apiEndpoint = changelogsModule.v3beta1.ChangelogsClient.apiEndpoint;
+      assert(apiEndpoint);
     });
-    assert(client);
-  });
 
-  it('has initialize method and supports deferred initialization', async () => {
-    const client = new changelogsModule.v3beta1.ChangelogsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('has port', () => {
+      const port = changelogsModule.v3beta1.ChangelogsClient.port;
+      assert(port);
+      assert(typeof port === 'number');
     });
-    assert.strictEqual(client.changelogsStub, undefined);
-    await client.initialize();
-    assert(client.changelogsStub);
-  });
 
-  it('has close method for the initialized client', done => {
-    const client = new changelogsModule.v3beta1.ChangelogsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('should create a client with no option', () => {
+      const client = new changelogsModule.v3beta1.ChangelogsClient();
+      assert(client);
     });
-    client.initialize();
-    assert(client.changelogsStub);
-    client.close().then(() => {
-      done();
+
+    it('should create a client with gRPC fallback', () => {
+      const client = new changelogsModule.v3beta1.ChangelogsClient({
+        fallback: true,
+      });
+      assert(client);
     });
-  });
 
-  it('has close method for the non-initialized client', done => {
-    const client = new changelogsModule.v3beta1.ChangelogsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('has initialize method and supports deferred initialization', async () => {
+      const client = new changelogsModule.v3beta1.ChangelogsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      assert.strictEqual(client.changelogsStub, undefined);
+      await client.initialize();
+      assert(client.changelogsStub);
     });
-    assert.strictEqual(client.changelogsStub, undefined);
-    client.close().then(() => {
-      done();
+
+    it('has close method for the initialized client', done => {
+      const client = new changelogsModule.v3beta1.ChangelogsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      client.initialize();
+      assert(client.changelogsStub);
+      client.close().then(() => {
+        done();
+      });
     });
-  });
 
-  it('has getProjectId method', async () => {
-    const fakeProjectId = 'fake-project-id';
-    const client = new changelogsModule.v3beta1.ChangelogsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('has close method for the non-initialized client', done => {
+      const client = new changelogsModule.v3beta1.ChangelogsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      assert.strictEqual(client.changelogsStub, undefined);
+      client.close().then(() => {
+        done();
+      });
     });
-    client.auth.getProjectId = sinon.stub().resolves(fakeProjectId);
-    const result = await client.getProjectId();
-    assert.strictEqual(result, fakeProjectId);
-    assert((client.auth.getProjectId as SinonStub).calledWithExactly());
-  });
 
-  it('has getProjectId method with callback', async () => {
-    const fakeProjectId = 'fake-project-id';
-    const client = new changelogsModule.v3beta1.ChangelogsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('has getProjectId method', async () => {
+      const fakeProjectId = 'fake-project-id';
+      const client = new changelogsModule.v3beta1.ChangelogsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      client.auth.getProjectId = sinon.stub().resolves(fakeProjectId);
+      const result = await client.getProjectId();
+      assert.strictEqual(result, fakeProjectId);
+      assert((client.auth.getProjectId as SinonStub).calledWithExactly());
     });
-    client.auth.getProjectId = sinon
-      .stub()
-      .callsArgWith(0, null, fakeProjectId);
-    const promise = new Promise((resolve, reject) => {
-      client.getProjectId((err?: Error | null, projectId?: string | null) => {
-        if (err) {
-          reject(err);
-        } else {
-          resolve(projectId);
-        }
+
+    it('has getProjectId method with callback', async () => {
+      const fakeProjectId = 'fake-project-id';
+      const client = new changelogsModule.v3beta1.ChangelogsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      client.auth.getProjectId = sinon
+        .stub()
+        .callsArgWith(0, null, fakeProjectId);
+      const promise = new Promise((resolve, reject) => {
+        client.getProjectId((err?: Error | null, projectId?: string | null) => {
+          if (err) {
+            reject(err);
+          } else {
+            resolve(projectId);
+          }
+        });
       });
+      const result = await promise;
+      assert.strictEqual(result, fakeProjectId);
     });
-    const result = await promise;
-    assert.strictEqual(result, fakeProjectId);
   });
 
   describe('getChangelog', () => {
diff --git a/packages/google-cloud-dialogflow-cx/test/gapic_deployments_v3.ts b/packages/google-cloud-dialogflow-cx/test/gapic_deployments_v3.ts
index 0c645191704..9f27533c912 100644
--- a/packages/google-cloud-dialogflow-cx/test/gapic_deployments_v3.ts
+++ b/packages/google-cloud-dialogflow-cx/test/gapic_deployments_v3.ts
@@ -25,12 +25,7 @@ import * as deploymentsModule from '../src';
 
 import {PassThrough} from 'stream';
 
-import {
-  protobuf,
-  LROperation,
-  operationsProtos,
-  LocationProtos,
-} from 'google-gax';
+import {protobuf, operationsProtos, LocationProtos} from 'google-gax';
 
 function generateSampleMessage<T extends object>(instance: T) {
   const filledObject = (
@@ -118,99 +113,101 @@ function stubAsyncIterationCall<ResponseType>(
 }
 
 describe('v3.DeploymentsClient', () => {
-  it('has servicePath', () => {
-    const servicePath = deploymentsModule.v3.DeploymentsClient.servicePath;
-    assert(servicePath);
-  });
-
-  it('has apiEndpoint', () => {
-    const apiEndpoint = deploymentsModule.v3.DeploymentsClient.apiEndpoint;
-    assert(apiEndpoint);
-  });
-
-  it('has port', () => {
-    const port = deploymentsModule.v3.DeploymentsClient.port;
-    assert(port);
-    assert(typeof port === 'number');
-  });
-
-  it('should create a client with no option', () => {
-    const client = new deploymentsModule.v3.DeploymentsClient();
-    assert(client);
-  });
+  describe('Common methods', () => {
+    it('has servicePath', () => {
+      const servicePath = deploymentsModule.v3.DeploymentsClient.servicePath;
+      assert(servicePath);
+    });
 
-  it('should create a client with gRPC fallback', () => {
-    const client = new deploymentsModule.v3.DeploymentsClient({
-      fallback: true,
+    it('has apiEndpoint', () => {
+      const apiEndpoint = deploymentsModule.v3.DeploymentsClient.apiEndpoint;
+      assert(apiEndpoint);
     });
-    assert(client);
-  });
 
-  it('has initialize method and supports deferred initialization', async () => {
-    const client = new deploymentsModule.v3.DeploymentsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('has port', () => {
+      const port = deploymentsModule.v3.DeploymentsClient.port;
+      assert(port);
+      assert(typeof port === 'number');
     });
-    assert.strictEqual(client.deploymentsStub, undefined);
-    await client.initialize();
-    assert(client.deploymentsStub);
-  });
 
-  it('has close method for the initialized client', done => {
-    const client = new deploymentsModule.v3.DeploymentsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('should create a client with no option', () => {
+      const client = new deploymentsModule.v3.DeploymentsClient();
+      assert(client);
     });
-    client.initialize();
-    assert(client.deploymentsStub);
-    client.close().then(() => {
-      done();
+
+    it('should create a client with gRPC fallback', () => {
+      const client = new deploymentsModule.v3.DeploymentsClient({
+        fallback: true,
+      });
+      assert(client);
     });
-  });
 
-  it('has close method for the non-initialized client', done => {
-    const client = new deploymentsModule.v3.DeploymentsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('has initialize method and supports deferred initialization', async () => {
+      const client = new deploymentsModule.v3.DeploymentsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      assert.strictEqual(client.deploymentsStub, undefined);
+      await client.initialize();
+      assert(client.deploymentsStub);
     });
-    assert.strictEqual(client.deploymentsStub, undefined);
-    client.close().then(() => {
-      done();
+
+    it('has close method for the initialized client', done => {
+      const client = new deploymentsModule.v3.DeploymentsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      client.initialize();
+      assert(client.deploymentsStub);
+      client.close().then(() => {
+        done();
+      });
     });
-  });
 
-  it('has getProjectId method', async () => {
-    const fakeProjectId = 'fake-project-id';
-    const client = new deploymentsModule.v3.DeploymentsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('has close method for the non-initialized client', done => {
+      const client = new deploymentsModule.v3.DeploymentsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      assert.strictEqual(client.deploymentsStub, undefined);
+      client.close().then(() => {
+        done();
+      });
     });
-    client.auth.getProjectId = sinon.stub().resolves(fakeProjectId);
-    const result = await client.getProjectId();
-    assert.strictEqual(result, fakeProjectId);
-    assert((client.auth.getProjectId as SinonStub).calledWithExactly());
-  });
 
-  it('has getProjectId method with callback', async () => {
-    const fakeProjectId = 'fake-project-id';
-    const client = new deploymentsModule.v3.DeploymentsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('has getProjectId method', async () => {
+      const fakeProjectId = 'fake-project-id';
+      const client = new deploymentsModule.v3.DeploymentsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      client.auth.getProjectId = sinon.stub().resolves(fakeProjectId);
+      const result = await client.getProjectId();
+      assert.strictEqual(result, fakeProjectId);
+      assert((client.auth.getProjectId as SinonStub).calledWithExactly());
     });
-    client.auth.getProjectId = sinon
-      .stub()
-      .callsArgWith(0, null, fakeProjectId);
-    const promise = new Promise((resolve, reject) => {
-      client.getProjectId((err?: Error | null, projectId?: string | null) => {
-        if (err) {
-          reject(err);
-        } else {
-          resolve(projectId);
-        }
+
+    it('has getProjectId method with callback', async () => {
+      const fakeProjectId = 'fake-project-id';
+      const client = new deploymentsModule.v3.DeploymentsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      client.auth.getProjectId = sinon
+        .stub()
+        .callsArgWith(0, null, fakeProjectId);
+      const promise = new Promise((resolve, reject) => {
+        client.getProjectId((err?: Error | null, projectId?: string | null) => {
+          if (err) {
+            reject(err);
+          } else {
+            resolve(projectId);
+          }
+        });
       });
+      const result = await promise;
+      assert.strictEqual(result, fakeProjectId);
     });
-    const result = await promise;
-    assert.strictEqual(result, fakeProjectId);
   });
 
   describe('getDeployment', () => {
diff --git a/packages/google-cloud-dialogflow-cx/test/gapic_deployments_v3beta1.ts b/packages/google-cloud-dialogflow-cx/test/gapic_deployments_v3beta1.ts
index 3b517a6fa85..d78fbc3dbc4 100644
--- a/packages/google-cloud-dialogflow-cx/test/gapic_deployments_v3beta1.ts
+++ b/packages/google-cloud-dialogflow-cx/test/gapic_deployments_v3beta1.ts
@@ -25,12 +25,7 @@ import * as deploymentsModule from '../src';
 
 import {PassThrough} from 'stream';
 
-import {
-  protobuf,
-  LROperation,
-  operationsProtos,
-  LocationProtos,
-} from 'google-gax';
+import {protobuf, operationsProtos, LocationProtos} from 'google-gax';
 
 function generateSampleMessage<T extends object>(instance: T) {
   const filledObject = (
@@ -118,99 +113,103 @@ function stubAsyncIterationCall<ResponseType>(
 }
 
 describe('v3beta1.DeploymentsClient', () => {
-  it('has servicePath', () => {
-    const servicePath = deploymentsModule.v3beta1.DeploymentsClient.servicePath;
-    assert(servicePath);
-  });
-
-  it('has apiEndpoint', () => {
-    const apiEndpoint = deploymentsModule.v3beta1.DeploymentsClient.apiEndpoint;
-    assert(apiEndpoint);
-  });
-
-  it('has port', () => {
-    const port = deploymentsModule.v3beta1.DeploymentsClient.port;
-    assert(port);
-    assert(typeof port === 'number');
-  });
-
-  it('should create a client with no option', () => {
-    const client = new deploymentsModule.v3beta1.DeploymentsClient();
-    assert(client);
-  });
+  describe('Common methods', () => {
+    it('has servicePath', () => {
+      const servicePath =
+        deploymentsModule.v3beta1.DeploymentsClient.servicePath;
+      assert(servicePath);
+    });
 
-  it('should create a client with gRPC fallback', () => {
-    const client = new deploymentsModule.v3beta1.DeploymentsClient({
-      fallback: true,
+    it('has apiEndpoint', () => {
+      const apiEndpoint =
+        deploymentsModule.v3beta1.DeploymentsClient.apiEndpoint;
+      assert(apiEndpoint);
     });
-    assert(client);
-  });
 
-  it('has initialize method and supports deferred initialization', async () => {
-    const client = new deploymentsModule.v3beta1.DeploymentsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('has port', () => {
+      const port = deploymentsModule.v3beta1.DeploymentsClient.port;
+      assert(port);
+      assert(typeof port === 'number');
     });
-    assert.strictEqual(client.deploymentsStub, undefined);
-    await client.initialize();
-    assert(client.deploymentsStub);
-  });
 
-  it('has close method for the initialized client', done => {
-    const client = new deploymentsModule.v3beta1.DeploymentsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('should create a client with no option', () => {
+      const client = new deploymentsModule.v3beta1.DeploymentsClient();
+      assert(client);
     });
-    client.initialize();
-    assert(client.deploymentsStub);
-    client.close().then(() => {
-      done();
+
+    it('should create a client with gRPC fallback', () => {
+      const client = new deploymentsModule.v3beta1.DeploymentsClient({
+        fallback: true,
+      });
+      assert(client);
     });
-  });
 
-  it('has close method for the non-initialized client', done => {
-    const client = new deploymentsModule.v3beta1.DeploymentsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('has initialize method and supports deferred initialization', async () => {
+      const client = new deploymentsModule.v3beta1.DeploymentsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      assert.strictEqual(client.deploymentsStub, undefined);
+      await client.initialize();
+      assert(client.deploymentsStub);
     });
-    assert.strictEqual(client.deploymentsStub, undefined);
-    client.close().then(() => {
-      done();
+
+    it('has close method for the initialized client', done => {
+      const client = new deploymentsModule.v3beta1.DeploymentsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      client.initialize();
+      assert(client.deploymentsStub);
+      client.close().then(() => {
+        done();
+      });
     });
-  });
 
-  it('has getProjectId method', async () => {
-    const fakeProjectId = 'fake-project-id';
-    const client = new deploymentsModule.v3beta1.DeploymentsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('has close method for the non-initialized client', done => {
+      const client = new deploymentsModule.v3beta1.DeploymentsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      assert.strictEqual(client.deploymentsStub, undefined);
+      client.close().then(() => {
+        done();
+      });
     });
-    client.auth.getProjectId = sinon.stub().resolves(fakeProjectId);
-    const result = await client.getProjectId();
-    assert.strictEqual(result, fakeProjectId);
-    assert((client.auth.getProjectId as SinonStub).calledWithExactly());
-  });
 
-  it('has getProjectId method with callback', async () => {
-    const fakeProjectId = 'fake-project-id';
-    const client = new deploymentsModule.v3beta1.DeploymentsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('has getProjectId method', async () => {
+      const fakeProjectId = 'fake-project-id';
+      const client = new deploymentsModule.v3beta1.DeploymentsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      client.auth.getProjectId = sinon.stub().resolves(fakeProjectId);
+      const result = await client.getProjectId();
+      assert.strictEqual(result, fakeProjectId);
+      assert((client.auth.getProjectId as SinonStub).calledWithExactly());
     });
-    client.auth.getProjectId = sinon
-      .stub()
-      .callsArgWith(0, null, fakeProjectId);
-    const promise = new Promise((resolve, reject) => {
-      client.getProjectId((err?: Error | null, projectId?: string | null) => {
-        if (err) {
-          reject(err);
-        } else {
-          resolve(projectId);
-        }
+
+    it('has getProjectId method with callback', async () => {
+      const fakeProjectId = 'fake-project-id';
+      const client = new deploymentsModule.v3beta1.DeploymentsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      client.auth.getProjectId = sinon
+        .stub()
+        .callsArgWith(0, null, fakeProjectId);
+      const promise = new Promise((resolve, reject) => {
+        client.getProjectId((err?: Error | null, projectId?: string | null) => {
+          if (err) {
+            reject(err);
+          } else {
+            resolve(projectId);
+          }
+        });
       });
+      const result = await promise;
+      assert.strictEqual(result, fakeProjectId);
     });
-    const result = await promise;
-    assert.strictEqual(result, fakeProjectId);
   });
 
   describe('getDeployment', () => {
diff --git a/packages/google-cloud-dialogflow-cx/test/gapic_entity_types_v3.ts b/packages/google-cloud-dialogflow-cx/test/gapic_entity_types_v3.ts
index c5b51ce87f8..d956c5c9e06 100644
--- a/packages/google-cloud-dialogflow-cx/test/gapic_entity_types_v3.ts
+++ b/packages/google-cloud-dialogflow-cx/test/gapic_entity_types_v3.ts
@@ -25,12 +25,7 @@ import * as entitytypesModule from '../src';
 
 import {PassThrough} from 'stream';
 
-import {
-  protobuf,
-  LROperation,
-  operationsProtos,
-  LocationProtos,
-} from 'google-gax';
+import {protobuf, operationsProtos, LocationProtos} from 'google-gax';
 
 function generateSampleMessage<T extends object>(instance: T) {
   const filledObject = (
@@ -118,99 +113,101 @@ function stubAsyncIterationCall<ResponseType>(
 }
 
 describe('v3.EntityTypesClient', () => {
-  it('has servicePath', () => {
-    const servicePath = entitytypesModule.v3.EntityTypesClient.servicePath;
-    assert(servicePath);
-  });
-
-  it('has apiEndpoint', () => {
-    const apiEndpoint = entitytypesModule.v3.EntityTypesClient.apiEndpoint;
-    assert(apiEndpoint);
-  });
-
-  it('has port', () => {
-    const port = entitytypesModule.v3.EntityTypesClient.port;
-    assert(port);
-    assert(typeof port === 'number');
-  });
+  describe('Common methods', () => {
+    it('has servicePath', () => {
+      const servicePath = entitytypesModule.v3.EntityTypesClient.servicePath;
+      assert(servicePath);
+    });
 
-  it('should create a client with no option', () => {
-    const client = new entitytypesModule.v3.EntityTypesClient();
-    assert(client);
-  });
+    it('has apiEndpoint', () => {
+      const apiEndpoint = entitytypesModule.v3.EntityTypesClient.apiEndpoint;
+      assert(apiEndpoint);
+    });
 
-  it('should create a client with gRPC fallback', () => {
-    const client = new entitytypesModule.v3.EntityTypesClient({
-      fallback: true,
+    it('has port', () => {
+      const port = entitytypesModule.v3.EntityTypesClient.port;
+      assert(port);
+      assert(typeof port === 'number');
     });
-    assert(client);
-  });
 
-  it('has initialize method and supports deferred initialization', async () => {
-    const client = new entitytypesModule.v3.EntityTypesClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('should create a client with no option', () => {
+      const client = new entitytypesModule.v3.EntityTypesClient();
+      assert(client);
     });
-    assert.strictEqual(client.entityTypesStub, undefined);
-    await client.initialize();
-    assert(client.entityTypesStub);
-  });
 
-  it('has close method for the initialized client', done => {
-    const client = new entitytypesModule.v3.EntityTypesClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('should create a client with gRPC fallback', () => {
+      const client = new entitytypesModule.v3.EntityTypesClient({
+        fallback: true,
+      });
+      assert(client);
     });
-    client.initialize();
-    assert(client.entityTypesStub);
-    client.close().then(() => {
-      done();
+
+    it('has initialize method and supports deferred initialization', async () => {
+      const client = new entitytypesModule.v3.EntityTypesClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      assert.strictEqual(client.entityTypesStub, undefined);
+      await client.initialize();
+      assert(client.entityTypesStub);
     });
-  });
 
-  it('has close method for the non-initialized client', done => {
-    const client = new entitytypesModule.v3.EntityTypesClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('has close method for the initialized client', done => {
+      const client = new entitytypesModule.v3.EntityTypesClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      client.initialize();
+      assert(client.entityTypesStub);
+      client.close().then(() => {
+        done();
+      });
     });
-    assert.strictEqual(client.entityTypesStub, undefined);
-    client.close().then(() => {
-      done();
+
+    it('has close method for the non-initialized client', done => {
+      const client = new entitytypesModule.v3.EntityTypesClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      assert.strictEqual(client.entityTypesStub, undefined);
+      client.close().then(() => {
+        done();
+      });
     });
-  });
 
-  it('has getProjectId method', async () => {
-    const fakeProjectId = 'fake-project-id';
-    const client = new entitytypesModule.v3.EntityTypesClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('has getProjectId method', async () => {
+      const fakeProjectId = 'fake-project-id';
+      const client = new entitytypesModule.v3.EntityTypesClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      client.auth.getProjectId = sinon.stub().resolves(fakeProjectId);
+      const result = await client.getProjectId();
+      assert.strictEqual(result, fakeProjectId);
+      assert((client.auth.getProjectId as SinonStub).calledWithExactly());
     });
-    client.auth.getProjectId = sinon.stub().resolves(fakeProjectId);
-    const result = await client.getProjectId();
-    assert.strictEqual(result, fakeProjectId);
-    assert((client.auth.getProjectId as SinonStub).calledWithExactly());
-  });
 
-  it('has getProjectId method with callback', async () => {
-    const fakeProjectId = 'fake-project-id';
-    const client = new entitytypesModule.v3.EntityTypesClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
-    });
-    client.auth.getProjectId = sinon
-      .stub()
-      .callsArgWith(0, null, fakeProjectId);
-    const promise = new Promise((resolve, reject) => {
-      client.getProjectId((err?: Error | null, projectId?: string | null) => {
-        if (err) {
-          reject(err);
-        } else {
-          resolve(projectId);
-        }
+    it('has getProjectId method with callback', async () => {
+      const fakeProjectId = 'fake-project-id';
+      const client = new entitytypesModule.v3.EntityTypesClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      client.auth.getProjectId = sinon
+        .stub()
+        .callsArgWith(0, null, fakeProjectId);
+      const promise = new Promise((resolve, reject) => {
+        client.getProjectId((err?: Error | null, projectId?: string | null) => {
+          if (err) {
+            reject(err);
+          } else {
+            resolve(projectId);
+          }
+        });
       });
+      const result = await promise;
+      assert.strictEqual(result, fakeProjectId);
     });
-    const result = await promise;
-    assert.strictEqual(result, fakeProjectId);
   });
 
   describe('getEntityType', () => {
diff --git a/packages/google-cloud-dialogflow-cx/test/gapic_entity_types_v3beta1.ts b/packages/google-cloud-dialogflow-cx/test/gapic_entity_types_v3beta1.ts
index ffe8bbfda35..b3a233539f3 100644
--- a/packages/google-cloud-dialogflow-cx/test/gapic_entity_types_v3beta1.ts
+++ b/packages/google-cloud-dialogflow-cx/test/gapic_entity_types_v3beta1.ts
@@ -25,12 +25,7 @@ import * as entitytypesModule from '../src';
 
 import {PassThrough} from 'stream';
 
-import {
-  protobuf,
-  LROperation,
-  operationsProtos,
-  LocationProtos,
-} from 'google-gax';
+import {protobuf, operationsProtos, LocationProtos} from 'google-gax';
 
 function generateSampleMessage<T extends object>(instance: T) {
   const filledObject = (
@@ -118,99 +113,103 @@ function stubAsyncIterationCall<ResponseType>(
 }
 
 describe('v3beta1.EntityTypesClient', () => {
-  it('has servicePath', () => {
-    const servicePath = entitytypesModule.v3beta1.EntityTypesClient.servicePath;
-    assert(servicePath);
-  });
-
-  it('has apiEndpoint', () => {
-    const apiEndpoint = entitytypesModule.v3beta1.EntityTypesClient.apiEndpoint;
-    assert(apiEndpoint);
-  });
-
-  it('has port', () => {
-    const port = entitytypesModule.v3beta1.EntityTypesClient.port;
-    assert(port);
-    assert(typeof port === 'number');
-  });
+  describe('Common methods', () => {
+    it('has servicePath', () => {
+      const servicePath =
+        entitytypesModule.v3beta1.EntityTypesClient.servicePath;
+      assert(servicePath);
+    });
 
-  it('should create a client with no option', () => {
-    const client = new entitytypesModule.v3beta1.EntityTypesClient();
-    assert(client);
-  });
+    it('has apiEndpoint', () => {
+      const apiEndpoint =
+        entitytypesModule.v3beta1.EntityTypesClient.apiEndpoint;
+      assert(apiEndpoint);
+    });
 
-  it('should create a client with gRPC fallback', () => {
-    const client = new entitytypesModule.v3beta1.EntityTypesClient({
-      fallback: true,
+    it('has port', () => {
+      const port = entitytypesModule.v3beta1.EntityTypesClient.port;
+      assert(port);
+      assert(typeof port === 'number');
     });
-    assert(client);
-  });
 
-  it('has initialize method and supports deferred initialization', async () => {
-    const client = new entitytypesModule.v3beta1.EntityTypesClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('should create a client with no option', () => {
+      const client = new entitytypesModule.v3beta1.EntityTypesClient();
+      assert(client);
     });
-    assert.strictEqual(client.entityTypesStub, undefined);
-    await client.initialize();
-    assert(client.entityTypesStub);
-  });
 
-  it('has close method for the initialized client', done => {
-    const client = new entitytypesModule.v3beta1.EntityTypesClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('should create a client with gRPC fallback', () => {
+      const client = new entitytypesModule.v3beta1.EntityTypesClient({
+        fallback: true,
+      });
+      assert(client);
     });
-    client.initialize();
-    assert(client.entityTypesStub);
-    client.close().then(() => {
-      done();
+
+    it('has initialize method and supports deferred initialization', async () => {
+      const client = new entitytypesModule.v3beta1.EntityTypesClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      assert.strictEqual(client.entityTypesStub, undefined);
+      await client.initialize();
+      assert(client.entityTypesStub);
     });
-  });
 
-  it('has close method for the non-initialized client', done => {
-    const client = new entitytypesModule.v3beta1.EntityTypesClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('has close method for the initialized client', done => {
+      const client = new entitytypesModule.v3beta1.EntityTypesClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      client.initialize();
+      assert(client.entityTypesStub);
+      client.close().then(() => {
+        done();
+      });
     });
-    assert.strictEqual(client.entityTypesStub, undefined);
-    client.close().then(() => {
-      done();
+
+    it('has close method for the non-initialized client', done => {
+      const client = new entitytypesModule.v3beta1.EntityTypesClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      assert.strictEqual(client.entityTypesStub, undefined);
+      client.close().then(() => {
+        done();
+      });
     });
-  });
 
-  it('has getProjectId method', async () => {
-    const fakeProjectId = 'fake-project-id';
-    const client = new entitytypesModule.v3beta1.EntityTypesClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('has getProjectId method', async () => {
+      const fakeProjectId = 'fake-project-id';
+      const client = new entitytypesModule.v3beta1.EntityTypesClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      client.auth.getProjectId = sinon.stub().resolves(fakeProjectId);
+      const result = await client.getProjectId();
+      assert.strictEqual(result, fakeProjectId);
+      assert((client.auth.getProjectId as SinonStub).calledWithExactly());
     });
-    client.auth.getProjectId = sinon.stub().resolves(fakeProjectId);
-    const result = await client.getProjectId();
-    assert.strictEqual(result, fakeProjectId);
-    assert((client.auth.getProjectId as SinonStub).calledWithExactly());
-  });
 
-  it('has getProjectId method with callback', async () => {
-    const fakeProjectId = 'fake-project-id';
-    const client = new entitytypesModule.v3beta1.EntityTypesClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
-    });
-    client.auth.getProjectId = sinon
-      .stub()
-      .callsArgWith(0, null, fakeProjectId);
-    const promise = new Promise((resolve, reject) => {
-      client.getProjectId((err?: Error | null, projectId?: string | null) => {
-        if (err) {
-          reject(err);
-        } else {
-          resolve(projectId);
-        }
+    it('has getProjectId method with callback', async () => {
+      const fakeProjectId = 'fake-project-id';
+      const client = new entitytypesModule.v3beta1.EntityTypesClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      client.auth.getProjectId = sinon
+        .stub()
+        .callsArgWith(0, null, fakeProjectId);
+      const promise = new Promise((resolve, reject) => {
+        client.getProjectId((err?: Error | null, projectId?: string | null) => {
+          if (err) {
+            reject(err);
+          } else {
+            resolve(projectId);
+          }
+        });
       });
+      const result = await promise;
+      assert.strictEqual(result, fakeProjectId);
     });
-    const result = await promise;
-    assert.strictEqual(result, fakeProjectId);
   });
 
   describe('getEntityType', () => {
diff --git a/packages/google-cloud-dialogflow-cx/test/gapic_environments_v3.ts b/packages/google-cloud-dialogflow-cx/test/gapic_environments_v3.ts
index 19e17a9903c..abba1a49d2e 100644
--- a/packages/google-cloud-dialogflow-cx/test/gapic_environments_v3.ts
+++ b/packages/google-cloud-dialogflow-cx/test/gapic_environments_v3.ts
@@ -150,99 +150,101 @@ function stubAsyncIterationCall<ResponseType>(
 }
 
 describe('v3.EnvironmentsClient', () => {
-  it('has servicePath', () => {
-    const servicePath = environmentsModule.v3.EnvironmentsClient.servicePath;
-    assert(servicePath);
-  });
-
-  it('has apiEndpoint', () => {
-    const apiEndpoint = environmentsModule.v3.EnvironmentsClient.apiEndpoint;
-    assert(apiEndpoint);
-  });
-
-  it('has port', () => {
-    const port = environmentsModule.v3.EnvironmentsClient.port;
-    assert(port);
-    assert(typeof port === 'number');
-  });
-
-  it('should create a client with no option', () => {
-    const client = new environmentsModule.v3.EnvironmentsClient();
-    assert(client);
-  });
+  describe('Common methods', () => {
+    it('has servicePath', () => {
+      const servicePath = environmentsModule.v3.EnvironmentsClient.servicePath;
+      assert(servicePath);
+    });
 
-  it('should create a client with gRPC fallback', () => {
-    const client = new environmentsModule.v3.EnvironmentsClient({
-      fallback: true,
+    it('has apiEndpoint', () => {
+      const apiEndpoint = environmentsModule.v3.EnvironmentsClient.apiEndpoint;
+      assert(apiEndpoint);
     });
-    assert(client);
-  });
 
-  it('has initialize method and supports deferred initialization', async () => {
-    const client = new environmentsModule.v3.EnvironmentsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('has port', () => {
+      const port = environmentsModule.v3.EnvironmentsClient.port;
+      assert(port);
+      assert(typeof port === 'number');
     });
-    assert.strictEqual(client.environmentsStub, undefined);
-    await client.initialize();
-    assert(client.environmentsStub);
-  });
 
-  it('has close method for the initialized client', done => {
-    const client = new environmentsModule.v3.EnvironmentsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('should create a client with no option', () => {
+      const client = new environmentsModule.v3.EnvironmentsClient();
+      assert(client);
     });
-    client.initialize();
-    assert(client.environmentsStub);
-    client.close().then(() => {
-      done();
+
+    it('should create a client with gRPC fallback', () => {
+      const client = new environmentsModule.v3.EnvironmentsClient({
+        fallback: true,
+      });
+      assert(client);
     });
-  });
 
-  it('has close method for the non-initialized client', done => {
-    const client = new environmentsModule.v3.EnvironmentsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('has initialize method and supports deferred initialization', async () => {
+      const client = new environmentsModule.v3.EnvironmentsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      assert.strictEqual(client.environmentsStub, undefined);
+      await client.initialize();
+      assert(client.environmentsStub);
     });
-    assert.strictEqual(client.environmentsStub, undefined);
-    client.close().then(() => {
-      done();
+
+    it('has close method for the initialized client', done => {
+      const client = new environmentsModule.v3.EnvironmentsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      client.initialize();
+      assert(client.environmentsStub);
+      client.close().then(() => {
+        done();
+      });
     });
-  });
 
-  it('has getProjectId method', async () => {
-    const fakeProjectId = 'fake-project-id';
-    const client = new environmentsModule.v3.EnvironmentsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('has close method for the non-initialized client', done => {
+      const client = new environmentsModule.v3.EnvironmentsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      assert.strictEqual(client.environmentsStub, undefined);
+      client.close().then(() => {
+        done();
+      });
     });
-    client.auth.getProjectId = sinon.stub().resolves(fakeProjectId);
-    const result = await client.getProjectId();
-    assert.strictEqual(result, fakeProjectId);
-    assert((client.auth.getProjectId as SinonStub).calledWithExactly());
-  });
 
-  it('has getProjectId method with callback', async () => {
-    const fakeProjectId = 'fake-project-id';
-    const client = new environmentsModule.v3.EnvironmentsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('has getProjectId method', async () => {
+      const fakeProjectId = 'fake-project-id';
+      const client = new environmentsModule.v3.EnvironmentsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      client.auth.getProjectId = sinon.stub().resolves(fakeProjectId);
+      const result = await client.getProjectId();
+      assert.strictEqual(result, fakeProjectId);
+      assert((client.auth.getProjectId as SinonStub).calledWithExactly());
     });
-    client.auth.getProjectId = sinon
-      .stub()
-      .callsArgWith(0, null, fakeProjectId);
-    const promise = new Promise((resolve, reject) => {
-      client.getProjectId((err?: Error | null, projectId?: string | null) => {
-        if (err) {
-          reject(err);
-        } else {
-          resolve(projectId);
-        }
+
+    it('has getProjectId method with callback', async () => {
+      const fakeProjectId = 'fake-project-id';
+      const client = new environmentsModule.v3.EnvironmentsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      client.auth.getProjectId = sinon
+        .stub()
+        .callsArgWith(0, null, fakeProjectId);
+      const promise = new Promise((resolve, reject) => {
+        client.getProjectId((err?: Error | null, projectId?: string | null) => {
+          if (err) {
+            reject(err);
+          } else {
+            resolve(projectId);
+          }
+        });
       });
+      const result = await promise;
+      assert.strictEqual(result, fakeProjectId);
     });
-    const result = await promise;
-    assert.strictEqual(result, fakeProjectId);
   });
 
   describe('getEnvironment', () => {
diff --git a/packages/google-cloud-dialogflow-cx/test/gapic_environments_v3beta1.ts b/packages/google-cloud-dialogflow-cx/test/gapic_environments_v3beta1.ts
index d3c6125ea9d..41026385814 100644
--- a/packages/google-cloud-dialogflow-cx/test/gapic_environments_v3beta1.ts
+++ b/packages/google-cloud-dialogflow-cx/test/gapic_environments_v3beta1.ts
@@ -150,101 +150,103 @@ function stubAsyncIterationCall<ResponseType>(
 }
 
 describe('v3beta1.EnvironmentsClient', () => {
-  it('has servicePath', () => {
-    const servicePath =
-      environmentsModule.v3beta1.EnvironmentsClient.servicePath;
-    assert(servicePath);
-  });
-
-  it('has apiEndpoint', () => {
-    const apiEndpoint =
-      environmentsModule.v3beta1.EnvironmentsClient.apiEndpoint;
-    assert(apiEndpoint);
-  });
-
-  it('has port', () => {
-    const port = environmentsModule.v3beta1.EnvironmentsClient.port;
-    assert(port);
-    assert(typeof port === 'number');
-  });
-
-  it('should create a client with no option', () => {
-    const client = new environmentsModule.v3beta1.EnvironmentsClient();
-    assert(client);
-  });
+  describe('Common methods', () => {
+    it('has servicePath', () => {
+      const servicePath =
+        environmentsModule.v3beta1.EnvironmentsClient.servicePath;
+      assert(servicePath);
+    });
 
-  it('should create a client with gRPC fallback', () => {
-    const client = new environmentsModule.v3beta1.EnvironmentsClient({
-      fallback: true,
+    it('has apiEndpoint', () => {
+      const apiEndpoint =
+        environmentsModule.v3beta1.EnvironmentsClient.apiEndpoint;
+      assert(apiEndpoint);
     });
-    assert(client);
-  });
 
-  it('has initialize method and supports deferred initialization', async () => {
-    const client = new environmentsModule.v3beta1.EnvironmentsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('has port', () => {
+      const port = environmentsModule.v3beta1.EnvironmentsClient.port;
+      assert(port);
+      assert(typeof port === 'number');
     });
-    assert.strictEqual(client.environmentsStub, undefined);
-    await client.initialize();
-    assert(client.environmentsStub);
-  });
 
-  it('has close method for the initialized client', done => {
-    const client = new environmentsModule.v3beta1.EnvironmentsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('should create a client with no option', () => {
+      const client = new environmentsModule.v3beta1.EnvironmentsClient();
+      assert(client);
     });
-    client.initialize();
-    assert(client.environmentsStub);
-    client.close().then(() => {
-      done();
+
+    it('should create a client with gRPC fallback', () => {
+      const client = new environmentsModule.v3beta1.EnvironmentsClient({
+        fallback: true,
+      });
+      assert(client);
     });
-  });
 
-  it('has close method for the non-initialized client', done => {
-    const client = new environmentsModule.v3beta1.EnvironmentsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('has initialize method and supports deferred initialization', async () => {
+      const client = new environmentsModule.v3beta1.EnvironmentsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      assert.strictEqual(client.environmentsStub, undefined);
+      await client.initialize();
+      assert(client.environmentsStub);
     });
-    assert.strictEqual(client.environmentsStub, undefined);
-    client.close().then(() => {
-      done();
+
+    it('has close method for the initialized client', done => {
+      const client = new environmentsModule.v3beta1.EnvironmentsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      client.initialize();
+      assert(client.environmentsStub);
+      client.close().then(() => {
+        done();
+      });
     });
-  });
 
-  it('has getProjectId method', async () => {
-    const fakeProjectId = 'fake-project-id';
-    const client = new environmentsModule.v3beta1.EnvironmentsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('has close method for the non-initialized client', done => {
+      const client = new environmentsModule.v3beta1.EnvironmentsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      assert.strictEqual(client.environmentsStub, undefined);
+      client.close().then(() => {
+        done();
+      });
     });
-    client.auth.getProjectId = sinon.stub().resolves(fakeProjectId);
-    const result = await client.getProjectId();
-    assert.strictEqual(result, fakeProjectId);
-    assert((client.auth.getProjectId as SinonStub).calledWithExactly());
-  });
 
-  it('has getProjectId method with callback', async () => {
-    const fakeProjectId = 'fake-project-id';
-    const client = new environmentsModule.v3beta1.EnvironmentsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('has getProjectId method', async () => {
+      const fakeProjectId = 'fake-project-id';
+      const client = new environmentsModule.v3beta1.EnvironmentsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      client.auth.getProjectId = sinon.stub().resolves(fakeProjectId);
+      const result = await client.getProjectId();
+      assert.strictEqual(result, fakeProjectId);
+      assert((client.auth.getProjectId as SinonStub).calledWithExactly());
     });
-    client.auth.getProjectId = sinon
-      .stub()
-      .callsArgWith(0, null, fakeProjectId);
-    const promise = new Promise((resolve, reject) => {
-      client.getProjectId((err?: Error | null, projectId?: string | null) => {
-        if (err) {
-          reject(err);
-        } else {
-          resolve(projectId);
-        }
+
+    it('has getProjectId method with callback', async () => {
+      const fakeProjectId = 'fake-project-id';
+      const client = new environmentsModule.v3beta1.EnvironmentsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      client.auth.getProjectId = sinon
+        .stub()
+        .callsArgWith(0, null, fakeProjectId);
+      const promise = new Promise((resolve, reject) => {
+        client.getProjectId((err?: Error | null, projectId?: string | null) => {
+          if (err) {
+            reject(err);
+          } else {
+            resolve(projectId);
+          }
+        });
       });
+      const result = await promise;
+      assert.strictEqual(result, fakeProjectId);
     });
-    const result = await promise;
-    assert.strictEqual(result, fakeProjectId);
   });
 
   describe('getEnvironment', () => {
diff --git a/packages/google-cloud-dialogflow-cx/test/gapic_experiments_v3.ts b/packages/google-cloud-dialogflow-cx/test/gapic_experiments_v3.ts
index b86b539301d..ec7a436a11e 100644
--- a/packages/google-cloud-dialogflow-cx/test/gapic_experiments_v3.ts
+++ b/packages/google-cloud-dialogflow-cx/test/gapic_experiments_v3.ts
@@ -25,12 +25,7 @@ import * as experimentsModule from '../src';
 
 import {PassThrough} from 'stream';
 
-import {
-  protobuf,
-  LROperation,
-  operationsProtos,
-  LocationProtos,
-} from 'google-gax';
+import {protobuf, operationsProtos, LocationProtos} from 'google-gax';
 
 function generateSampleMessage<T extends object>(instance: T) {
   const filledObject = (
@@ -118,99 +113,101 @@ function stubAsyncIterationCall<ResponseType>(
 }
 
 describe('v3.ExperimentsClient', () => {
-  it('has servicePath', () => {
-    const servicePath = experimentsModule.v3.ExperimentsClient.servicePath;
-    assert(servicePath);
-  });
-
-  it('has apiEndpoint', () => {
-    const apiEndpoint = experimentsModule.v3.ExperimentsClient.apiEndpoint;
-    assert(apiEndpoint);
-  });
-
-  it('has port', () => {
-    const port = experimentsModule.v3.ExperimentsClient.port;
-    assert(port);
-    assert(typeof port === 'number');
-  });
+  describe('Common methods', () => {
+    it('has servicePath', () => {
+      const servicePath = experimentsModule.v3.ExperimentsClient.servicePath;
+      assert(servicePath);
+    });
 
-  it('should create a client with no option', () => {
-    const client = new experimentsModule.v3.ExperimentsClient();
-    assert(client);
-  });
+    it('has apiEndpoint', () => {
+      const apiEndpoint = experimentsModule.v3.ExperimentsClient.apiEndpoint;
+      assert(apiEndpoint);
+    });
 
-  it('should create a client with gRPC fallback', () => {
-    const client = new experimentsModule.v3.ExperimentsClient({
-      fallback: true,
+    it('has port', () => {
+      const port = experimentsModule.v3.ExperimentsClient.port;
+      assert(port);
+      assert(typeof port === 'number');
     });
-    assert(client);
-  });
 
-  it('has initialize method and supports deferred initialization', async () => {
-    const client = new experimentsModule.v3.ExperimentsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('should create a client with no option', () => {
+      const client = new experimentsModule.v3.ExperimentsClient();
+      assert(client);
     });
-    assert.strictEqual(client.experimentsStub, undefined);
-    await client.initialize();
-    assert(client.experimentsStub);
-  });
 
-  it('has close method for the initialized client', done => {
-    const client = new experimentsModule.v3.ExperimentsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('should create a client with gRPC fallback', () => {
+      const client = new experimentsModule.v3.ExperimentsClient({
+        fallback: true,
+      });
+      assert(client);
     });
-    client.initialize();
-    assert(client.experimentsStub);
-    client.close().then(() => {
-      done();
+
+    it('has initialize method and supports deferred initialization', async () => {
+      const client = new experimentsModule.v3.ExperimentsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      assert.strictEqual(client.experimentsStub, undefined);
+      await client.initialize();
+      assert(client.experimentsStub);
     });
-  });
 
-  it('has close method for the non-initialized client', done => {
-    const client = new experimentsModule.v3.ExperimentsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('has close method for the initialized client', done => {
+      const client = new experimentsModule.v3.ExperimentsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      client.initialize();
+      assert(client.experimentsStub);
+      client.close().then(() => {
+        done();
+      });
     });
-    assert.strictEqual(client.experimentsStub, undefined);
-    client.close().then(() => {
-      done();
+
+    it('has close method for the non-initialized client', done => {
+      const client = new experimentsModule.v3.ExperimentsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      assert.strictEqual(client.experimentsStub, undefined);
+      client.close().then(() => {
+        done();
+      });
     });
-  });
 
-  it('has getProjectId method', async () => {
-    const fakeProjectId = 'fake-project-id';
-    const client = new experimentsModule.v3.ExperimentsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('has getProjectId method', async () => {
+      const fakeProjectId = 'fake-project-id';
+      const client = new experimentsModule.v3.ExperimentsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      client.auth.getProjectId = sinon.stub().resolves(fakeProjectId);
+      const result = await client.getProjectId();
+      assert.strictEqual(result, fakeProjectId);
+      assert((client.auth.getProjectId as SinonStub).calledWithExactly());
     });
-    client.auth.getProjectId = sinon.stub().resolves(fakeProjectId);
-    const result = await client.getProjectId();
-    assert.strictEqual(result, fakeProjectId);
-    assert((client.auth.getProjectId as SinonStub).calledWithExactly());
-  });
 
-  it('has getProjectId method with callback', async () => {
-    const fakeProjectId = 'fake-project-id';
-    const client = new experimentsModule.v3.ExperimentsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
-    });
-    client.auth.getProjectId = sinon
-      .stub()
-      .callsArgWith(0, null, fakeProjectId);
-    const promise = new Promise((resolve, reject) => {
-      client.getProjectId((err?: Error | null, projectId?: string | null) => {
-        if (err) {
-          reject(err);
-        } else {
-          resolve(projectId);
-        }
+    it('has getProjectId method with callback', async () => {
+      const fakeProjectId = 'fake-project-id';
+      const client = new experimentsModule.v3.ExperimentsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      client.auth.getProjectId = sinon
+        .stub()
+        .callsArgWith(0, null, fakeProjectId);
+      const promise = new Promise((resolve, reject) => {
+        client.getProjectId((err?: Error | null, projectId?: string | null) => {
+          if (err) {
+            reject(err);
+          } else {
+            resolve(projectId);
+          }
+        });
       });
+      const result = await promise;
+      assert.strictEqual(result, fakeProjectId);
     });
-    const result = await promise;
-    assert.strictEqual(result, fakeProjectId);
   });
 
   describe('getExperiment', () => {
diff --git a/packages/google-cloud-dialogflow-cx/test/gapic_experiments_v3beta1.ts b/packages/google-cloud-dialogflow-cx/test/gapic_experiments_v3beta1.ts
index 451db82730e..4830f7fb2cc 100644
--- a/packages/google-cloud-dialogflow-cx/test/gapic_experiments_v3beta1.ts
+++ b/packages/google-cloud-dialogflow-cx/test/gapic_experiments_v3beta1.ts
@@ -25,12 +25,7 @@ import * as experimentsModule from '../src';
 
 import {PassThrough} from 'stream';
 
-import {
-  protobuf,
-  LROperation,
-  operationsProtos,
-  LocationProtos,
-} from 'google-gax';
+import {protobuf, operationsProtos, LocationProtos} from 'google-gax';
 
 function generateSampleMessage<T extends object>(instance: T) {
   const filledObject = (
@@ -118,99 +113,103 @@ function stubAsyncIterationCall<ResponseType>(
 }
 
 describe('v3beta1.ExperimentsClient', () => {
-  it('has servicePath', () => {
-    const servicePath = experimentsModule.v3beta1.ExperimentsClient.servicePath;
-    assert(servicePath);
-  });
-
-  it('has apiEndpoint', () => {
-    const apiEndpoint = experimentsModule.v3beta1.ExperimentsClient.apiEndpoint;
-    assert(apiEndpoint);
-  });
-
-  it('has port', () => {
-    const port = experimentsModule.v3beta1.ExperimentsClient.port;
-    assert(port);
-    assert(typeof port === 'number');
-  });
+  describe('Common methods', () => {
+    it('has servicePath', () => {
+      const servicePath =
+        experimentsModule.v3beta1.ExperimentsClient.servicePath;
+      assert(servicePath);
+    });
 
-  it('should create a client with no option', () => {
-    const client = new experimentsModule.v3beta1.ExperimentsClient();
-    assert(client);
-  });
+    it('has apiEndpoint', () => {
+      const apiEndpoint =
+        experimentsModule.v3beta1.ExperimentsClient.apiEndpoint;
+      assert(apiEndpoint);
+    });
 
-  it('should create a client with gRPC fallback', () => {
-    const client = new experimentsModule.v3beta1.ExperimentsClient({
-      fallback: true,
+    it('has port', () => {
+      const port = experimentsModule.v3beta1.ExperimentsClient.port;
+      assert(port);
+      assert(typeof port === 'number');
     });
-    assert(client);
-  });
 
-  it('has initialize method and supports deferred initialization', async () => {
-    const client = new experimentsModule.v3beta1.ExperimentsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('should create a client with no option', () => {
+      const client = new experimentsModule.v3beta1.ExperimentsClient();
+      assert(client);
     });
-    assert.strictEqual(client.experimentsStub, undefined);
-    await client.initialize();
-    assert(client.experimentsStub);
-  });
 
-  it('has close method for the initialized client', done => {
-    const client = new experimentsModule.v3beta1.ExperimentsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('should create a client with gRPC fallback', () => {
+      const client = new experimentsModule.v3beta1.ExperimentsClient({
+        fallback: true,
+      });
+      assert(client);
     });
-    client.initialize();
-    assert(client.experimentsStub);
-    client.close().then(() => {
-      done();
+
+    it('has initialize method and supports deferred initialization', async () => {
+      const client = new experimentsModule.v3beta1.ExperimentsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      assert.strictEqual(client.experimentsStub, undefined);
+      await client.initialize();
+      assert(client.experimentsStub);
     });
-  });
 
-  it('has close method for the non-initialized client', done => {
-    const client = new experimentsModule.v3beta1.ExperimentsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('has close method for the initialized client', done => {
+      const client = new experimentsModule.v3beta1.ExperimentsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      client.initialize();
+      assert(client.experimentsStub);
+      client.close().then(() => {
+        done();
+      });
     });
-    assert.strictEqual(client.experimentsStub, undefined);
-    client.close().then(() => {
-      done();
+
+    it('has close method for the non-initialized client', done => {
+      const client = new experimentsModule.v3beta1.ExperimentsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      assert.strictEqual(client.experimentsStub, undefined);
+      client.close().then(() => {
+        done();
+      });
     });
-  });
 
-  it('has getProjectId method', async () => {
-    const fakeProjectId = 'fake-project-id';
-    const client = new experimentsModule.v3beta1.ExperimentsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('has getProjectId method', async () => {
+      const fakeProjectId = 'fake-project-id';
+      const client = new experimentsModule.v3beta1.ExperimentsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      client.auth.getProjectId = sinon.stub().resolves(fakeProjectId);
+      const result = await client.getProjectId();
+      assert.strictEqual(result, fakeProjectId);
+      assert((client.auth.getProjectId as SinonStub).calledWithExactly());
     });
-    client.auth.getProjectId = sinon.stub().resolves(fakeProjectId);
-    const result = await client.getProjectId();
-    assert.strictEqual(result, fakeProjectId);
-    assert((client.auth.getProjectId as SinonStub).calledWithExactly());
-  });
 
-  it('has getProjectId method with callback', async () => {
-    const fakeProjectId = 'fake-project-id';
-    const client = new experimentsModule.v3beta1.ExperimentsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
-    });
-    client.auth.getProjectId = sinon
-      .stub()
-      .callsArgWith(0, null, fakeProjectId);
-    const promise = new Promise((resolve, reject) => {
-      client.getProjectId((err?: Error | null, projectId?: string | null) => {
-        if (err) {
-          reject(err);
-        } else {
-          resolve(projectId);
-        }
+    it('has getProjectId method with callback', async () => {
+      const fakeProjectId = 'fake-project-id';
+      const client = new experimentsModule.v3beta1.ExperimentsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      client.auth.getProjectId = sinon
+        .stub()
+        .callsArgWith(0, null, fakeProjectId);
+      const promise = new Promise((resolve, reject) => {
+        client.getProjectId((err?: Error | null, projectId?: string | null) => {
+          if (err) {
+            reject(err);
+          } else {
+            resolve(projectId);
+          }
+        });
       });
+      const result = await promise;
+      assert.strictEqual(result, fakeProjectId);
     });
-    const result = await promise;
-    assert.strictEqual(result, fakeProjectId);
   });
 
   describe('getExperiment', () => {
diff --git a/packages/google-cloud-dialogflow-cx/test/gapic_flows_v3.ts b/packages/google-cloud-dialogflow-cx/test/gapic_flows_v3.ts
index 91469af6add..77e05c93413 100644
--- a/packages/google-cloud-dialogflow-cx/test/gapic_flows_v3.ts
+++ b/packages/google-cloud-dialogflow-cx/test/gapic_flows_v3.ts
@@ -150,99 +150,101 @@ function stubAsyncIterationCall<ResponseType>(
 }
 
 describe('v3.FlowsClient', () => {
-  it('has servicePath', () => {
-    const servicePath = flowsModule.v3.FlowsClient.servicePath;
-    assert(servicePath);
-  });
-
-  it('has apiEndpoint', () => {
-    const apiEndpoint = flowsModule.v3.FlowsClient.apiEndpoint;
-    assert(apiEndpoint);
-  });
-
-  it('has port', () => {
-    const port = flowsModule.v3.FlowsClient.port;
-    assert(port);
-    assert(typeof port === 'number');
-  });
-
-  it('should create a client with no option', () => {
-    const client = new flowsModule.v3.FlowsClient();
-    assert(client);
-  });
+  describe('Common methods', () => {
+    it('has servicePath', () => {
+      const servicePath = flowsModule.v3.FlowsClient.servicePath;
+      assert(servicePath);
+    });
 
-  it('should create a client with gRPC fallback', () => {
-    const client = new flowsModule.v3.FlowsClient({
-      fallback: true,
+    it('has apiEndpoint', () => {
+      const apiEndpoint = flowsModule.v3.FlowsClient.apiEndpoint;
+      assert(apiEndpoint);
     });
-    assert(client);
-  });
 
-  it('has initialize method and supports deferred initialization', async () => {
-    const client = new flowsModule.v3.FlowsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('has port', () => {
+      const port = flowsModule.v3.FlowsClient.port;
+      assert(port);
+      assert(typeof port === 'number');
     });
-    assert.strictEqual(client.flowsStub, undefined);
-    await client.initialize();
-    assert(client.flowsStub);
-  });
 
-  it('has close method for the initialized client', done => {
-    const client = new flowsModule.v3.FlowsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('should create a client with no option', () => {
+      const client = new flowsModule.v3.FlowsClient();
+      assert(client);
     });
-    client.initialize();
-    assert(client.flowsStub);
-    client.close().then(() => {
-      done();
+
+    it('should create a client with gRPC fallback', () => {
+      const client = new flowsModule.v3.FlowsClient({
+        fallback: true,
+      });
+      assert(client);
     });
-  });
 
-  it('has close method for the non-initialized client', done => {
-    const client = new flowsModule.v3.FlowsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('has initialize method and supports deferred initialization', async () => {
+      const client = new flowsModule.v3.FlowsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      assert.strictEqual(client.flowsStub, undefined);
+      await client.initialize();
+      assert(client.flowsStub);
     });
-    assert.strictEqual(client.flowsStub, undefined);
-    client.close().then(() => {
-      done();
+
+    it('has close method for the initialized client', done => {
+      const client = new flowsModule.v3.FlowsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      client.initialize();
+      assert(client.flowsStub);
+      client.close().then(() => {
+        done();
+      });
     });
-  });
 
-  it('has getProjectId method', async () => {
-    const fakeProjectId = 'fake-project-id';
-    const client = new flowsModule.v3.FlowsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('has close method for the non-initialized client', done => {
+      const client = new flowsModule.v3.FlowsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      assert.strictEqual(client.flowsStub, undefined);
+      client.close().then(() => {
+        done();
+      });
     });
-    client.auth.getProjectId = sinon.stub().resolves(fakeProjectId);
-    const result = await client.getProjectId();
-    assert.strictEqual(result, fakeProjectId);
-    assert((client.auth.getProjectId as SinonStub).calledWithExactly());
-  });
 
-  it('has getProjectId method with callback', async () => {
-    const fakeProjectId = 'fake-project-id';
-    const client = new flowsModule.v3.FlowsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('has getProjectId method', async () => {
+      const fakeProjectId = 'fake-project-id';
+      const client = new flowsModule.v3.FlowsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      client.auth.getProjectId = sinon.stub().resolves(fakeProjectId);
+      const result = await client.getProjectId();
+      assert.strictEqual(result, fakeProjectId);
+      assert((client.auth.getProjectId as SinonStub).calledWithExactly());
     });
-    client.auth.getProjectId = sinon
-      .stub()
-      .callsArgWith(0, null, fakeProjectId);
-    const promise = new Promise((resolve, reject) => {
-      client.getProjectId((err?: Error | null, projectId?: string | null) => {
-        if (err) {
-          reject(err);
-        } else {
-          resolve(projectId);
-        }
+
+    it('has getProjectId method with callback', async () => {
+      const fakeProjectId = 'fake-project-id';
+      const client = new flowsModule.v3.FlowsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      client.auth.getProjectId = sinon
+        .stub()
+        .callsArgWith(0, null, fakeProjectId);
+      const promise = new Promise((resolve, reject) => {
+        client.getProjectId((err?: Error | null, projectId?: string | null) => {
+          if (err) {
+            reject(err);
+          } else {
+            resolve(projectId);
+          }
+        });
       });
+      const result = await promise;
+      assert.strictEqual(result, fakeProjectId);
     });
-    const result = await promise;
-    assert.strictEqual(result, fakeProjectId);
   });
 
   describe('createFlow', () => {
diff --git a/packages/google-cloud-dialogflow-cx/test/gapic_flows_v3beta1.ts b/packages/google-cloud-dialogflow-cx/test/gapic_flows_v3beta1.ts
index b1593b32398..66966621f3f 100644
--- a/packages/google-cloud-dialogflow-cx/test/gapic_flows_v3beta1.ts
+++ b/packages/google-cloud-dialogflow-cx/test/gapic_flows_v3beta1.ts
@@ -150,99 +150,101 @@ function stubAsyncIterationCall<ResponseType>(
 }
 
 describe('v3beta1.FlowsClient', () => {
-  it('has servicePath', () => {
-    const servicePath = flowsModule.v3beta1.FlowsClient.servicePath;
-    assert(servicePath);
-  });
-
-  it('has apiEndpoint', () => {
-    const apiEndpoint = flowsModule.v3beta1.FlowsClient.apiEndpoint;
-    assert(apiEndpoint);
-  });
-
-  it('has port', () => {
-    const port = flowsModule.v3beta1.FlowsClient.port;
-    assert(port);
-    assert(typeof port === 'number');
-  });
-
-  it('should create a client with no option', () => {
-    const client = new flowsModule.v3beta1.FlowsClient();
-    assert(client);
-  });
+  describe('Common methods', () => {
+    it('has servicePath', () => {
+      const servicePath = flowsModule.v3beta1.FlowsClient.servicePath;
+      assert(servicePath);
+    });
 
-  it('should create a client with gRPC fallback', () => {
-    const client = new flowsModule.v3beta1.FlowsClient({
-      fallback: true,
+    it('has apiEndpoint', () => {
+      const apiEndpoint = flowsModule.v3beta1.FlowsClient.apiEndpoint;
+      assert(apiEndpoint);
     });
-    assert(client);
-  });
 
-  it('has initialize method and supports deferred initialization', async () => {
-    const client = new flowsModule.v3beta1.FlowsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('has port', () => {
+      const port = flowsModule.v3beta1.FlowsClient.port;
+      assert(port);
+      assert(typeof port === 'number');
     });
-    assert.strictEqual(client.flowsStub, undefined);
-    await client.initialize();
-    assert(client.flowsStub);
-  });
 
-  it('has close method for the initialized client', done => {
-    const client = new flowsModule.v3beta1.FlowsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('should create a client with no option', () => {
+      const client = new flowsModule.v3beta1.FlowsClient();
+      assert(client);
     });
-    client.initialize();
-    assert(client.flowsStub);
-    client.close().then(() => {
-      done();
+
+    it('should create a client with gRPC fallback', () => {
+      const client = new flowsModule.v3beta1.FlowsClient({
+        fallback: true,
+      });
+      assert(client);
     });
-  });
 
-  it('has close method for the non-initialized client', done => {
-    const client = new flowsModule.v3beta1.FlowsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('has initialize method and supports deferred initialization', async () => {
+      const client = new flowsModule.v3beta1.FlowsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      assert.strictEqual(client.flowsStub, undefined);
+      await client.initialize();
+      assert(client.flowsStub);
     });
-    assert.strictEqual(client.flowsStub, undefined);
-    client.close().then(() => {
-      done();
+
+    it('has close method for the initialized client', done => {
+      const client = new flowsModule.v3beta1.FlowsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      client.initialize();
+      assert(client.flowsStub);
+      client.close().then(() => {
+        done();
+      });
     });
-  });
 
-  it('has getProjectId method', async () => {
-    const fakeProjectId = 'fake-project-id';
-    const client = new flowsModule.v3beta1.FlowsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('has close method for the non-initialized client', done => {
+      const client = new flowsModule.v3beta1.FlowsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      assert.strictEqual(client.flowsStub, undefined);
+      client.close().then(() => {
+        done();
+      });
     });
-    client.auth.getProjectId = sinon.stub().resolves(fakeProjectId);
-    const result = await client.getProjectId();
-    assert.strictEqual(result, fakeProjectId);
-    assert((client.auth.getProjectId as SinonStub).calledWithExactly());
-  });
 
-  it('has getProjectId method with callback', async () => {
-    const fakeProjectId = 'fake-project-id';
-    const client = new flowsModule.v3beta1.FlowsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('has getProjectId method', async () => {
+      const fakeProjectId = 'fake-project-id';
+      const client = new flowsModule.v3beta1.FlowsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      client.auth.getProjectId = sinon.stub().resolves(fakeProjectId);
+      const result = await client.getProjectId();
+      assert.strictEqual(result, fakeProjectId);
+      assert((client.auth.getProjectId as SinonStub).calledWithExactly());
     });
-    client.auth.getProjectId = sinon
-      .stub()
-      .callsArgWith(0, null, fakeProjectId);
-    const promise = new Promise((resolve, reject) => {
-      client.getProjectId((err?: Error | null, projectId?: string | null) => {
-        if (err) {
-          reject(err);
-        } else {
-          resolve(projectId);
-        }
+
+    it('has getProjectId method with callback', async () => {
+      const fakeProjectId = 'fake-project-id';
+      const client = new flowsModule.v3beta1.FlowsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      client.auth.getProjectId = sinon
+        .stub()
+        .callsArgWith(0, null, fakeProjectId);
+      const promise = new Promise((resolve, reject) => {
+        client.getProjectId((err?: Error | null, projectId?: string | null) => {
+          if (err) {
+            reject(err);
+          } else {
+            resolve(projectId);
+          }
+        });
       });
+      const result = await promise;
+      assert.strictEqual(result, fakeProjectId);
     });
-    const result = await promise;
-    assert.strictEqual(result, fakeProjectId);
   });
 
   describe('createFlow', () => {
diff --git a/packages/google-cloud-dialogflow-cx/test/gapic_intents_v3.ts b/packages/google-cloud-dialogflow-cx/test/gapic_intents_v3.ts
index 932e4fb5757..8a5f1bd5f0a 100644
--- a/packages/google-cloud-dialogflow-cx/test/gapic_intents_v3.ts
+++ b/packages/google-cloud-dialogflow-cx/test/gapic_intents_v3.ts
@@ -25,12 +25,7 @@ import * as intentsModule from '../src';
 
 import {PassThrough} from 'stream';
 
-import {
-  protobuf,
-  LROperation,
-  operationsProtos,
-  LocationProtos,
-} from 'google-gax';
+import {protobuf, operationsProtos, LocationProtos} from 'google-gax';
 
 function generateSampleMessage<T extends object>(instance: T) {
   const filledObject = (
@@ -118,99 +113,101 @@ function stubAsyncIterationCall<ResponseType>(
 }
 
 describe('v3.IntentsClient', () => {
-  it('has servicePath', () => {
-    const servicePath = intentsModule.v3.IntentsClient.servicePath;
-    assert(servicePath);
-  });
-
-  it('has apiEndpoint', () => {
-    const apiEndpoint = intentsModule.v3.IntentsClient.apiEndpoint;
-    assert(apiEndpoint);
-  });
-
-  it('has port', () => {
-    const port = intentsModule.v3.IntentsClient.port;
-    assert(port);
-    assert(typeof port === 'number');
-  });
+  describe('Common methods', () => {
+    it('has servicePath', () => {
+      const servicePath = intentsModule.v3.IntentsClient.servicePath;
+      assert(servicePath);
+    });
 
-  it('should create a client with no option', () => {
-    const client = new intentsModule.v3.IntentsClient();
-    assert(client);
-  });
+    it('has apiEndpoint', () => {
+      const apiEndpoint = intentsModule.v3.IntentsClient.apiEndpoint;
+      assert(apiEndpoint);
+    });
 
-  it('should create a client with gRPC fallback', () => {
-    const client = new intentsModule.v3.IntentsClient({
-      fallback: true,
+    it('has port', () => {
+      const port = intentsModule.v3.IntentsClient.port;
+      assert(port);
+      assert(typeof port === 'number');
     });
-    assert(client);
-  });
 
-  it('has initialize method and supports deferred initialization', async () => {
-    const client = new intentsModule.v3.IntentsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('should create a client with no option', () => {
+      const client = new intentsModule.v3.IntentsClient();
+      assert(client);
     });
-    assert.strictEqual(client.intentsStub, undefined);
-    await client.initialize();
-    assert(client.intentsStub);
-  });
 
-  it('has close method for the initialized client', done => {
-    const client = new intentsModule.v3.IntentsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('should create a client with gRPC fallback', () => {
+      const client = new intentsModule.v3.IntentsClient({
+        fallback: true,
+      });
+      assert(client);
     });
-    client.initialize();
-    assert(client.intentsStub);
-    client.close().then(() => {
-      done();
+
+    it('has initialize method and supports deferred initialization', async () => {
+      const client = new intentsModule.v3.IntentsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      assert.strictEqual(client.intentsStub, undefined);
+      await client.initialize();
+      assert(client.intentsStub);
     });
-  });
 
-  it('has close method for the non-initialized client', done => {
-    const client = new intentsModule.v3.IntentsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('has close method for the initialized client', done => {
+      const client = new intentsModule.v3.IntentsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      client.initialize();
+      assert(client.intentsStub);
+      client.close().then(() => {
+        done();
+      });
     });
-    assert.strictEqual(client.intentsStub, undefined);
-    client.close().then(() => {
-      done();
+
+    it('has close method for the non-initialized client', done => {
+      const client = new intentsModule.v3.IntentsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      assert.strictEqual(client.intentsStub, undefined);
+      client.close().then(() => {
+        done();
+      });
     });
-  });
 
-  it('has getProjectId method', async () => {
-    const fakeProjectId = 'fake-project-id';
-    const client = new intentsModule.v3.IntentsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('has getProjectId method', async () => {
+      const fakeProjectId = 'fake-project-id';
+      const client = new intentsModule.v3.IntentsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      client.auth.getProjectId = sinon.stub().resolves(fakeProjectId);
+      const result = await client.getProjectId();
+      assert.strictEqual(result, fakeProjectId);
+      assert((client.auth.getProjectId as SinonStub).calledWithExactly());
     });
-    client.auth.getProjectId = sinon.stub().resolves(fakeProjectId);
-    const result = await client.getProjectId();
-    assert.strictEqual(result, fakeProjectId);
-    assert((client.auth.getProjectId as SinonStub).calledWithExactly());
-  });
 
-  it('has getProjectId method with callback', async () => {
-    const fakeProjectId = 'fake-project-id';
-    const client = new intentsModule.v3.IntentsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
-    });
-    client.auth.getProjectId = sinon
-      .stub()
-      .callsArgWith(0, null, fakeProjectId);
-    const promise = new Promise((resolve, reject) => {
-      client.getProjectId((err?: Error | null, projectId?: string | null) => {
-        if (err) {
-          reject(err);
-        } else {
-          resolve(projectId);
-        }
+    it('has getProjectId method with callback', async () => {
+      const fakeProjectId = 'fake-project-id';
+      const client = new intentsModule.v3.IntentsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      client.auth.getProjectId = sinon
+        .stub()
+        .callsArgWith(0, null, fakeProjectId);
+      const promise = new Promise((resolve, reject) => {
+        client.getProjectId((err?: Error | null, projectId?: string | null) => {
+          if (err) {
+            reject(err);
+          } else {
+            resolve(projectId);
+          }
+        });
       });
+      const result = await promise;
+      assert.strictEqual(result, fakeProjectId);
     });
-    const result = await promise;
-    assert.strictEqual(result, fakeProjectId);
   });
 
   describe('getIntent', () => {
diff --git a/packages/google-cloud-dialogflow-cx/test/gapic_intents_v3beta1.ts b/packages/google-cloud-dialogflow-cx/test/gapic_intents_v3beta1.ts
index b62875d8a4b..4e5600e8d08 100644
--- a/packages/google-cloud-dialogflow-cx/test/gapic_intents_v3beta1.ts
+++ b/packages/google-cloud-dialogflow-cx/test/gapic_intents_v3beta1.ts
@@ -25,12 +25,7 @@ import * as intentsModule from '../src';
 
 import {PassThrough} from 'stream';
 
-import {
-  protobuf,
-  LROperation,
-  operationsProtos,
-  LocationProtos,
-} from 'google-gax';
+import {protobuf, operationsProtos, LocationProtos} from 'google-gax';
 
 function generateSampleMessage<T extends object>(instance: T) {
   const filledObject = (
@@ -118,99 +113,101 @@ function stubAsyncIterationCall<ResponseType>(
 }
 
 describe('v3beta1.IntentsClient', () => {
-  it('has servicePath', () => {
-    const servicePath = intentsModule.v3beta1.IntentsClient.servicePath;
-    assert(servicePath);
-  });
-
-  it('has apiEndpoint', () => {
-    const apiEndpoint = intentsModule.v3beta1.IntentsClient.apiEndpoint;
-    assert(apiEndpoint);
-  });
-
-  it('has port', () => {
-    const port = intentsModule.v3beta1.IntentsClient.port;
-    assert(port);
-    assert(typeof port === 'number');
-  });
+  describe('Common methods', () => {
+    it('has servicePath', () => {
+      const servicePath = intentsModule.v3beta1.IntentsClient.servicePath;
+      assert(servicePath);
+    });
 
-  it('should create a client with no option', () => {
-    const client = new intentsModule.v3beta1.IntentsClient();
-    assert(client);
-  });
+    it('has apiEndpoint', () => {
+      const apiEndpoint = intentsModule.v3beta1.IntentsClient.apiEndpoint;
+      assert(apiEndpoint);
+    });
 
-  it('should create a client with gRPC fallback', () => {
-    const client = new intentsModule.v3beta1.IntentsClient({
-      fallback: true,
+    it('has port', () => {
+      const port = intentsModule.v3beta1.IntentsClient.port;
+      assert(port);
+      assert(typeof port === 'number');
     });
-    assert(client);
-  });
 
-  it('has initialize method and supports deferred initialization', async () => {
-    const client = new intentsModule.v3beta1.IntentsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('should create a client with no option', () => {
+      const client = new intentsModule.v3beta1.IntentsClient();
+      assert(client);
     });
-    assert.strictEqual(client.intentsStub, undefined);
-    await client.initialize();
-    assert(client.intentsStub);
-  });
 
-  it('has close method for the initialized client', done => {
-    const client = new intentsModule.v3beta1.IntentsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('should create a client with gRPC fallback', () => {
+      const client = new intentsModule.v3beta1.IntentsClient({
+        fallback: true,
+      });
+      assert(client);
     });
-    client.initialize();
-    assert(client.intentsStub);
-    client.close().then(() => {
-      done();
+
+    it('has initialize method and supports deferred initialization', async () => {
+      const client = new intentsModule.v3beta1.IntentsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      assert.strictEqual(client.intentsStub, undefined);
+      await client.initialize();
+      assert(client.intentsStub);
     });
-  });
 
-  it('has close method for the non-initialized client', done => {
-    const client = new intentsModule.v3beta1.IntentsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('has close method for the initialized client', done => {
+      const client = new intentsModule.v3beta1.IntentsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      client.initialize();
+      assert(client.intentsStub);
+      client.close().then(() => {
+        done();
+      });
     });
-    assert.strictEqual(client.intentsStub, undefined);
-    client.close().then(() => {
-      done();
+
+    it('has close method for the non-initialized client', done => {
+      const client = new intentsModule.v3beta1.IntentsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      assert.strictEqual(client.intentsStub, undefined);
+      client.close().then(() => {
+        done();
+      });
     });
-  });
 
-  it('has getProjectId method', async () => {
-    const fakeProjectId = 'fake-project-id';
-    const client = new intentsModule.v3beta1.IntentsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('has getProjectId method', async () => {
+      const fakeProjectId = 'fake-project-id';
+      const client = new intentsModule.v3beta1.IntentsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      client.auth.getProjectId = sinon.stub().resolves(fakeProjectId);
+      const result = await client.getProjectId();
+      assert.strictEqual(result, fakeProjectId);
+      assert((client.auth.getProjectId as SinonStub).calledWithExactly());
     });
-    client.auth.getProjectId = sinon.stub().resolves(fakeProjectId);
-    const result = await client.getProjectId();
-    assert.strictEqual(result, fakeProjectId);
-    assert((client.auth.getProjectId as SinonStub).calledWithExactly());
-  });
 
-  it('has getProjectId method with callback', async () => {
-    const fakeProjectId = 'fake-project-id';
-    const client = new intentsModule.v3beta1.IntentsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
-    });
-    client.auth.getProjectId = sinon
-      .stub()
-      .callsArgWith(0, null, fakeProjectId);
-    const promise = new Promise((resolve, reject) => {
-      client.getProjectId((err?: Error | null, projectId?: string | null) => {
-        if (err) {
-          reject(err);
-        } else {
-          resolve(projectId);
-        }
+    it('has getProjectId method with callback', async () => {
+      const fakeProjectId = 'fake-project-id';
+      const client = new intentsModule.v3beta1.IntentsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      client.auth.getProjectId = sinon
+        .stub()
+        .callsArgWith(0, null, fakeProjectId);
+      const promise = new Promise((resolve, reject) => {
+        client.getProjectId((err?: Error | null, projectId?: string | null) => {
+          if (err) {
+            reject(err);
+          } else {
+            resolve(projectId);
+          }
+        });
       });
+      const result = await promise;
+      assert.strictEqual(result, fakeProjectId);
     });
-    const result = await promise;
-    assert.strictEqual(result, fakeProjectId);
   });
 
   describe('getIntent', () => {
diff --git a/packages/google-cloud-dialogflow-cx/test/gapic_pages_v3.ts b/packages/google-cloud-dialogflow-cx/test/gapic_pages_v3.ts
index 109a5550363..660dd288517 100644
--- a/packages/google-cloud-dialogflow-cx/test/gapic_pages_v3.ts
+++ b/packages/google-cloud-dialogflow-cx/test/gapic_pages_v3.ts
@@ -25,12 +25,7 @@ import * as pagesModule from '../src';
 
 import {PassThrough} from 'stream';
 
-import {
-  protobuf,
-  LROperation,
-  operationsProtos,
-  LocationProtos,
-} from 'google-gax';
+import {protobuf, operationsProtos, LocationProtos} from 'google-gax';
 
 function generateSampleMessage<T extends object>(instance: T) {
   const filledObject = (
@@ -118,99 +113,101 @@ function stubAsyncIterationCall<ResponseType>(
 }
 
 describe('v3.PagesClient', () => {
-  it('has servicePath', () => {
-    const servicePath = pagesModule.v3.PagesClient.servicePath;
-    assert(servicePath);
-  });
-
-  it('has apiEndpoint', () => {
-    const apiEndpoint = pagesModule.v3.PagesClient.apiEndpoint;
-    assert(apiEndpoint);
-  });
-
-  it('has port', () => {
-    const port = pagesModule.v3.PagesClient.port;
-    assert(port);
-    assert(typeof port === 'number');
-  });
+  describe('Common methods', () => {
+    it('has servicePath', () => {
+      const servicePath = pagesModule.v3.PagesClient.servicePath;
+      assert(servicePath);
+    });
 
-  it('should create a client with no option', () => {
-    const client = new pagesModule.v3.PagesClient();
-    assert(client);
-  });
+    it('has apiEndpoint', () => {
+      const apiEndpoint = pagesModule.v3.PagesClient.apiEndpoint;
+      assert(apiEndpoint);
+    });
 
-  it('should create a client with gRPC fallback', () => {
-    const client = new pagesModule.v3.PagesClient({
-      fallback: true,
+    it('has port', () => {
+      const port = pagesModule.v3.PagesClient.port;
+      assert(port);
+      assert(typeof port === 'number');
     });
-    assert(client);
-  });
 
-  it('has initialize method and supports deferred initialization', async () => {
-    const client = new pagesModule.v3.PagesClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('should create a client with no option', () => {
+      const client = new pagesModule.v3.PagesClient();
+      assert(client);
     });
-    assert.strictEqual(client.pagesStub, undefined);
-    await client.initialize();
-    assert(client.pagesStub);
-  });
 
-  it('has close method for the initialized client', done => {
-    const client = new pagesModule.v3.PagesClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('should create a client with gRPC fallback', () => {
+      const client = new pagesModule.v3.PagesClient({
+        fallback: true,
+      });
+      assert(client);
     });
-    client.initialize();
-    assert(client.pagesStub);
-    client.close().then(() => {
-      done();
+
+    it('has initialize method and supports deferred initialization', async () => {
+      const client = new pagesModule.v3.PagesClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      assert.strictEqual(client.pagesStub, undefined);
+      await client.initialize();
+      assert(client.pagesStub);
     });
-  });
 
-  it('has close method for the non-initialized client', done => {
-    const client = new pagesModule.v3.PagesClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('has close method for the initialized client', done => {
+      const client = new pagesModule.v3.PagesClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      client.initialize();
+      assert(client.pagesStub);
+      client.close().then(() => {
+        done();
+      });
     });
-    assert.strictEqual(client.pagesStub, undefined);
-    client.close().then(() => {
-      done();
+
+    it('has close method for the non-initialized client', done => {
+      const client = new pagesModule.v3.PagesClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      assert.strictEqual(client.pagesStub, undefined);
+      client.close().then(() => {
+        done();
+      });
     });
-  });
 
-  it('has getProjectId method', async () => {
-    const fakeProjectId = 'fake-project-id';
-    const client = new pagesModule.v3.PagesClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('has getProjectId method', async () => {
+      const fakeProjectId = 'fake-project-id';
+      const client = new pagesModule.v3.PagesClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      client.auth.getProjectId = sinon.stub().resolves(fakeProjectId);
+      const result = await client.getProjectId();
+      assert.strictEqual(result, fakeProjectId);
+      assert((client.auth.getProjectId as SinonStub).calledWithExactly());
     });
-    client.auth.getProjectId = sinon.stub().resolves(fakeProjectId);
-    const result = await client.getProjectId();
-    assert.strictEqual(result, fakeProjectId);
-    assert((client.auth.getProjectId as SinonStub).calledWithExactly());
-  });
 
-  it('has getProjectId method with callback', async () => {
-    const fakeProjectId = 'fake-project-id';
-    const client = new pagesModule.v3.PagesClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
-    });
-    client.auth.getProjectId = sinon
-      .stub()
-      .callsArgWith(0, null, fakeProjectId);
-    const promise = new Promise((resolve, reject) => {
-      client.getProjectId((err?: Error | null, projectId?: string | null) => {
-        if (err) {
-          reject(err);
-        } else {
-          resolve(projectId);
-        }
+    it('has getProjectId method with callback', async () => {
+      const fakeProjectId = 'fake-project-id';
+      const client = new pagesModule.v3.PagesClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      client.auth.getProjectId = sinon
+        .stub()
+        .callsArgWith(0, null, fakeProjectId);
+      const promise = new Promise((resolve, reject) => {
+        client.getProjectId((err?: Error | null, projectId?: string | null) => {
+          if (err) {
+            reject(err);
+          } else {
+            resolve(projectId);
+          }
+        });
       });
+      const result = await promise;
+      assert.strictEqual(result, fakeProjectId);
     });
-    const result = await promise;
-    assert.strictEqual(result, fakeProjectId);
   });
 
   describe('getPage', () => {
diff --git a/packages/google-cloud-dialogflow-cx/test/gapic_pages_v3beta1.ts b/packages/google-cloud-dialogflow-cx/test/gapic_pages_v3beta1.ts
index 72dfbe025fc..bd90b33d865 100644
--- a/packages/google-cloud-dialogflow-cx/test/gapic_pages_v3beta1.ts
+++ b/packages/google-cloud-dialogflow-cx/test/gapic_pages_v3beta1.ts
@@ -25,12 +25,7 @@ import * as pagesModule from '../src';
 
 import {PassThrough} from 'stream';
 
-import {
-  protobuf,
-  LROperation,
-  operationsProtos,
-  LocationProtos,
-} from 'google-gax';
+import {protobuf, operationsProtos, LocationProtos} from 'google-gax';
 
 function generateSampleMessage<T extends object>(instance: T) {
   const filledObject = (
@@ -118,99 +113,101 @@ function stubAsyncIterationCall<ResponseType>(
 }
 
 describe('v3beta1.PagesClient', () => {
-  it('has servicePath', () => {
-    const servicePath = pagesModule.v3beta1.PagesClient.servicePath;
-    assert(servicePath);
-  });
-
-  it('has apiEndpoint', () => {
-    const apiEndpoint = pagesModule.v3beta1.PagesClient.apiEndpoint;
-    assert(apiEndpoint);
-  });
-
-  it('has port', () => {
-    const port = pagesModule.v3beta1.PagesClient.port;
-    assert(port);
-    assert(typeof port === 'number');
-  });
+  describe('Common methods', () => {
+    it('has servicePath', () => {
+      const servicePath = pagesModule.v3beta1.PagesClient.servicePath;
+      assert(servicePath);
+    });
 
-  it('should create a client with no option', () => {
-    const client = new pagesModule.v3beta1.PagesClient();
-    assert(client);
-  });
+    it('has apiEndpoint', () => {
+      const apiEndpoint = pagesModule.v3beta1.PagesClient.apiEndpoint;
+      assert(apiEndpoint);
+    });
 
-  it('should create a client with gRPC fallback', () => {
-    const client = new pagesModule.v3beta1.PagesClient({
-      fallback: true,
+    it('has port', () => {
+      const port = pagesModule.v3beta1.PagesClient.port;
+      assert(port);
+      assert(typeof port === 'number');
     });
-    assert(client);
-  });
 
-  it('has initialize method and supports deferred initialization', async () => {
-    const client = new pagesModule.v3beta1.PagesClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('should create a client with no option', () => {
+      const client = new pagesModule.v3beta1.PagesClient();
+      assert(client);
     });
-    assert.strictEqual(client.pagesStub, undefined);
-    await client.initialize();
-    assert(client.pagesStub);
-  });
 
-  it('has close method for the initialized client', done => {
-    const client = new pagesModule.v3beta1.PagesClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('should create a client with gRPC fallback', () => {
+      const client = new pagesModule.v3beta1.PagesClient({
+        fallback: true,
+      });
+      assert(client);
     });
-    client.initialize();
-    assert(client.pagesStub);
-    client.close().then(() => {
-      done();
+
+    it('has initialize method and supports deferred initialization', async () => {
+      const client = new pagesModule.v3beta1.PagesClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      assert.strictEqual(client.pagesStub, undefined);
+      await client.initialize();
+      assert(client.pagesStub);
     });
-  });
 
-  it('has close method for the non-initialized client', done => {
-    const client = new pagesModule.v3beta1.PagesClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('has close method for the initialized client', done => {
+      const client = new pagesModule.v3beta1.PagesClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      client.initialize();
+      assert(client.pagesStub);
+      client.close().then(() => {
+        done();
+      });
     });
-    assert.strictEqual(client.pagesStub, undefined);
-    client.close().then(() => {
-      done();
+
+    it('has close method for the non-initialized client', done => {
+      const client = new pagesModule.v3beta1.PagesClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      assert.strictEqual(client.pagesStub, undefined);
+      client.close().then(() => {
+        done();
+      });
     });
-  });
 
-  it('has getProjectId method', async () => {
-    const fakeProjectId = 'fake-project-id';
-    const client = new pagesModule.v3beta1.PagesClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('has getProjectId method', async () => {
+      const fakeProjectId = 'fake-project-id';
+      const client = new pagesModule.v3beta1.PagesClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      client.auth.getProjectId = sinon.stub().resolves(fakeProjectId);
+      const result = await client.getProjectId();
+      assert.strictEqual(result, fakeProjectId);
+      assert((client.auth.getProjectId as SinonStub).calledWithExactly());
     });
-    client.auth.getProjectId = sinon.stub().resolves(fakeProjectId);
-    const result = await client.getProjectId();
-    assert.strictEqual(result, fakeProjectId);
-    assert((client.auth.getProjectId as SinonStub).calledWithExactly());
-  });
 
-  it('has getProjectId method with callback', async () => {
-    const fakeProjectId = 'fake-project-id';
-    const client = new pagesModule.v3beta1.PagesClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
-    });
-    client.auth.getProjectId = sinon
-      .stub()
-      .callsArgWith(0, null, fakeProjectId);
-    const promise = new Promise((resolve, reject) => {
-      client.getProjectId((err?: Error | null, projectId?: string | null) => {
-        if (err) {
-          reject(err);
-        } else {
-          resolve(projectId);
-        }
+    it('has getProjectId method with callback', async () => {
+      const fakeProjectId = 'fake-project-id';
+      const client = new pagesModule.v3beta1.PagesClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      client.auth.getProjectId = sinon
+        .stub()
+        .callsArgWith(0, null, fakeProjectId);
+      const promise = new Promise((resolve, reject) => {
+        client.getProjectId((err?: Error | null, projectId?: string | null) => {
+          if (err) {
+            reject(err);
+          } else {
+            resolve(projectId);
+          }
+        });
       });
+      const result = await promise;
+      assert.strictEqual(result, fakeProjectId);
     });
-    const result = await promise;
-    assert.strictEqual(result, fakeProjectId);
   });
 
   describe('getPage', () => {
diff --git a/packages/google-cloud-dialogflow-cx/test/gapic_security_settings_service_v3.ts b/packages/google-cloud-dialogflow-cx/test/gapic_security_settings_service_v3.ts
index 05779fbbf77..4fb89370777 100644
--- a/packages/google-cloud-dialogflow-cx/test/gapic_security_settings_service_v3.ts
+++ b/packages/google-cloud-dialogflow-cx/test/gapic_security_settings_service_v3.ts
@@ -25,12 +25,7 @@ import * as securitysettingsserviceModule from '../src';
 
 import {PassThrough} from 'stream';
 
-import {
-  protobuf,
-  LROperation,
-  operationsProtos,
-  LocationProtos,
-} from 'google-gax';
+import {protobuf, operationsProtos, LocationProtos} from 'google-gax';
 
 function generateSampleMessage<T extends object>(instance: T) {
   const filledObject = (
@@ -118,111 +113,113 @@ function stubAsyncIterationCall<ResponseType>(
 }
 
 describe('v3.SecuritySettingsServiceClient', () => {
-  it('has servicePath', () => {
-    const servicePath =
-      securitysettingsserviceModule.v3.SecuritySettingsServiceClient
-        .servicePath;
-    assert(servicePath);
-  });
+  describe('Common methods', () => {
+    it('has servicePath', () => {
+      const servicePath =
+        securitysettingsserviceModule.v3.SecuritySettingsServiceClient
+          .servicePath;
+      assert(servicePath);
+    });
 
-  it('has apiEndpoint', () => {
-    const apiEndpoint =
-      securitysettingsserviceModule.v3.SecuritySettingsServiceClient
-        .apiEndpoint;
-    assert(apiEndpoint);
-  });
+    it('has apiEndpoint', () => {
+      const apiEndpoint =
+        securitysettingsserviceModule.v3.SecuritySettingsServiceClient
+          .apiEndpoint;
+      assert(apiEndpoint);
+    });
 
-  it('has port', () => {
-    const port =
-      securitysettingsserviceModule.v3.SecuritySettingsServiceClient.port;
-    assert(port);
-    assert(typeof port === 'number');
-  });
+    it('has port', () => {
+      const port =
+        securitysettingsserviceModule.v3.SecuritySettingsServiceClient.port;
+      assert(port);
+      assert(typeof port === 'number');
+    });
 
-  it('should create a client with no option', () => {
-    const client =
-      new securitysettingsserviceModule.v3.SecuritySettingsServiceClient();
-    assert(client);
-  });
+    it('should create a client with no option', () => {
+      const client =
+        new securitysettingsserviceModule.v3.SecuritySettingsServiceClient();
+      assert(client);
+    });
 
-  it('should create a client with gRPC fallback', () => {
-    const client =
-      new securitysettingsserviceModule.v3.SecuritySettingsServiceClient({
-        fallback: true,
-      });
-    assert(client);
-  });
+    it('should create a client with gRPC fallback', () => {
+      const client =
+        new securitysettingsserviceModule.v3.SecuritySettingsServiceClient({
+          fallback: true,
+        });
+      assert(client);
+    });
 
-  it('has initialize method and supports deferred initialization', async () => {
-    const client =
-      new securitysettingsserviceModule.v3.SecuritySettingsServiceClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-    assert.strictEqual(client.securitySettingsServiceStub, undefined);
-    await client.initialize();
-    assert(client.securitySettingsServiceStub);
-  });
+    it('has initialize method and supports deferred initialization', async () => {
+      const client =
+        new securitysettingsserviceModule.v3.SecuritySettingsServiceClient({
+          credentials: {client_email: 'bogus', private_key: 'bogus'},
+          projectId: 'bogus',
+        });
+      assert.strictEqual(client.securitySettingsServiceStub, undefined);
+      await client.initialize();
+      assert(client.securitySettingsServiceStub);
+    });
 
-  it('has close method for the initialized client', done => {
-    const client =
-      new securitysettingsserviceModule.v3.SecuritySettingsServiceClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
+    it('has close method for the initialized client', done => {
+      const client =
+        new securitysettingsserviceModule.v3.SecuritySettingsServiceClient({
+          credentials: {client_email: 'bogus', private_key: 'bogus'},
+          projectId: 'bogus',
+        });
+      client.initialize();
+      assert(client.securitySettingsServiceStub);
+      client.close().then(() => {
+        done();
       });
-    client.initialize();
-    assert(client.securitySettingsServiceStub);
-    client.close().then(() => {
-      done();
     });
-  });
 
-  it('has close method for the non-initialized client', done => {
-    const client =
-      new securitysettingsserviceModule.v3.SecuritySettingsServiceClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
+    it('has close method for the non-initialized client', done => {
+      const client =
+        new securitysettingsserviceModule.v3.SecuritySettingsServiceClient({
+          credentials: {client_email: 'bogus', private_key: 'bogus'},
+          projectId: 'bogus',
+        });
+      assert.strictEqual(client.securitySettingsServiceStub, undefined);
+      client.close().then(() => {
+        done();
       });
-    assert.strictEqual(client.securitySettingsServiceStub, undefined);
-    client.close().then(() => {
-      done();
     });
-  });
 
-  it('has getProjectId method', async () => {
-    const fakeProjectId = 'fake-project-id';
-    const client =
-      new securitysettingsserviceModule.v3.SecuritySettingsServiceClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-    client.auth.getProjectId = sinon.stub().resolves(fakeProjectId);
-    const result = await client.getProjectId();
-    assert.strictEqual(result, fakeProjectId);
-    assert((client.auth.getProjectId as SinonStub).calledWithExactly());
-  });
+    it('has getProjectId method', async () => {
+      const fakeProjectId = 'fake-project-id';
+      const client =
+        new securitysettingsserviceModule.v3.SecuritySettingsServiceClient({
+          credentials: {client_email: 'bogus', private_key: 'bogus'},
+          projectId: 'bogus',
+        });
+      client.auth.getProjectId = sinon.stub().resolves(fakeProjectId);
+      const result = await client.getProjectId();
+      assert.strictEqual(result, fakeProjectId);
+      assert((client.auth.getProjectId as SinonStub).calledWithExactly());
+    });
 
-  it('has getProjectId method with callback', async () => {
-    const fakeProjectId = 'fake-project-id';
-    const client =
-      new securitysettingsserviceModule.v3.SecuritySettingsServiceClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-    client.auth.getProjectId = sinon
-      .stub()
-      .callsArgWith(0, null, fakeProjectId);
-    const promise = new Promise((resolve, reject) => {
-      client.getProjectId((err?: Error | null, projectId?: string | null) => {
-        if (err) {
-          reject(err);
-        } else {
-          resolve(projectId);
-        }
+    it('has getProjectId method with callback', async () => {
+      const fakeProjectId = 'fake-project-id';
+      const client =
+        new securitysettingsserviceModule.v3.SecuritySettingsServiceClient({
+          credentials: {client_email: 'bogus', private_key: 'bogus'},
+          projectId: 'bogus',
+        });
+      client.auth.getProjectId = sinon
+        .stub()
+        .callsArgWith(0, null, fakeProjectId);
+      const promise = new Promise((resolve, reject) => {
+        client.getProjectId((err?: Error | null, projectId?: string | null) => {
+          if (err) {
+            reject(err);
+          } else {
+            resolve(projectId);
+          }
+        });
       });
+      const result = await promise;
+      assert.strictEqual(result, fakeProjectId);
     });
-    const result = await promise;
-    assert.strictEqual(result, fakeProjectId);
   });
 
   describe('createSecuritySettings', () => {
diff --git a/packages/google-cloud-dialogflow-cx/test/gapic_security_settings_service_v3beta1.ts b/packages/google-cloud-dialogflow-cx/test/gapic_security_settings_service_v3beta1.ts
index 14c92c6b576..7548cca07dd 100644
--- a/packages/google-cloud-dialogflow-cx/test/gapic_security_settings_service_v3beta1.ts
+++ b/packages/google-cloud-dialogflow-cx/test/gapic_security_settings_service_v3beta1.ts
@@ -25,12 +25,7 @@ import * as securitysettingsserviceModule from '../src';
 
 import {PassThrough} from 'stream';
 
-import {
-  protobuf,
-  LROperation,
-  operationsProtos,
-  LocationProtos,
-} from 'google-gax';
+import {protobuf, operationsProtos, LocationProtos} from 'google-gax';
 
 function generateSampleMessage<T extends object>(instance: T) {
   const filledObject = (
@@ -118,111 +113,126 @@ function stubAsyncIterationCall<ResponseType>(
 }
 
 describe('v3beta1.SecuritySettingsServiceClient', () => {
-  it('has servicePath', () => {
-    const servicePath =
-      securitysettingsserviceModule.v3beta1.SecuritySettingsServiceClient
-        .servicePath;
-    assert(servicePath);
-  });
+  describe('Common methods', () => {
+    it('has servicePath', () => {
+      const servicePath =
+        securitysettingsserviceModule.v3beta1.SecuritySettingsServiceClient
+          .servicePath;
+      assert(servicePath);
+    });
 
-  it('has apiEndpoint', () => {
-    const apiEndpoint =
-      securitysettingsserviceModule.v3beta1.SecuritySettingsServiceClient
-        .apiEndpoint;
-    assert(apiEndpoint);
-  });
+    it('has apiEndpoint', () => {
+      const apiEndpoint =
+        securitysettingsserviceModule.v3beta1.SecuritySettingsServiceClient
+          .apiEndpoint;
+      assert(apiEndpoint);
+    });
 
-  it('has port', () => {
-    const port =
-      securitysettingsserviceModule.v3beta1.SecuritySettingsServiceClient.port;
-    assert(port);
-    assert(typeof port === 'number');
-  });
+    it('has port', () => {
+      const port =
+        securitysettingsserviceModule.v3beta1.SecuritySettingsServiceClient
+          .port;
+      assert(port);
+      assert(typeof port === 'number');
+    });
 
-  it('should create a client with no option', () => {
-    const client =
-      new securitysettingsserviceModule.v3beta1.SecuritySettingsServiceClient();
-    assert(client);
-  });
+    it('should create a client with no option', () => {
+      const client =
+        new securitysettingsserviceModule.v3beta1.SecuritySettingsServiceClient();
+      assert(client);
+    });
 
-  it('should create a client with gRPC fallback', () => {
-    const client =
-      new securitysettingsserviceModule.v3beta1.SecuritySettingsServiceClient({
-        fallback: true,
-      });
-    assert(client);
-  });
+    it('should create a client with gRPC fallback', () => {
+      const client =
+        new securitysettingsserviceModule.v3beta1.SecuritySettingsServiceClient(
+          {
+            fallback: true,
+          }
+        );
+      assert(client);
+    });
 
-  it('has initialize method and supports deferred initialization', async () => {
-    const client =
-      new securitysettingsserviceModule.v3beta1.SecuritySettingsServiceClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-    assert.strictEqual(client.securitySettingsServiceStub, undefined);
-    await client.initialize();
-    assert(client.securitySettingsServiceStub);
-  });
+    it('has initialize method and supports deferred initialization', async () => {
+      const client =
+        new securitysettingsserviceModule.v3beta1.SecuritySettingsServiceClient(
+          {
+            credentials: {client_email: 'bogus', private_key: 'bogus'},
+            projectId: 'bogus',
+          }
+        );
+      assert.strictEqual(client.securitySettingsServiceStub, undefined);
+      await client.initialize();
+      assert(client.securitySettingsServiceStub);
+    });
 
-  it('has close method for the initialized client', done => {
-    const client =
-      new securitysettingsserviceModule.v3beta1.SecuritySettingsServiceClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
+    it('has close method for the initialized client', done => {
+      const client =
+        new securitysettingsserviceModule.v3beta1.SecuritySettingsServiceClient(
+          {
+            credentials: {client_email: 'bogus', private_key: 'bogus'},
+            projectId: 'bogus',
+          }
+        );
+      client.initialize();
+      assert(client.securitySettingsServiceStub);
+      client.close().then(() => {
+        done();
       });
-    client.initialize();
-    assert(client.securitySettingsServiceStub);
-    client.close().then(() => {
-      done();
     });
-  });
 
-  it('has close method for the non-initialized client', done => {
-    const client =
-      new securitysettingsserviceModule.v3beta1.SecuritySettingsServiceClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
+    it('has close method for the non-initialized client', done => {
+      const client =
+        new securitysettingsserviceModule.v3beta1.SecuritySettingsServiceClient(
+          {
+            credentials: {client_email: 'bogus', private_key: 'bogus'},
+            projectId: 'bogus',
+          }
+        );
+      assert.strictEqual(client.securitySettingsServiceStub, undefined);
+      client.close().then(() => {
+        done();
       });
-    assert.strictEqual(client.securitySettingsServiceStub, undefined);
-    client.close().then(() => {
-      done();
     });
-  });
 
-  it('has getProjectId method', async () => {
-    const fakeProjectId = 'fake-project-id';
-    const client =
-      new securitysettingsserviceModule.v3beta1.SecuritySettingsServiceClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-    client.auth.getProjectId = sinon.stub().resolves(fakeProjectId);
-    const result = await client.getProjectId();
-    assert.strictEqual(result, fakeProjectId);
-    assert((client.auth.getProjectId as SinonStub).calledWithExactly());
-  });
+    it('has getProjectId method', async () => {
+      const fakeProjectId = 'fake-project-id';
+      const client =
+        new securitysettingsserviceModule.v3beta1.SecuritySettingsServiceClient(
+          {
+            credentials: {client_email: 'bogus', private_key: 'bogus'},
+            projectId: 'bogus',
+          }
+        );
+      client.auth.getProjectId = sinon.stub().resolves(fakeProjectId);
+      const result = await client.getProjectId();
+      assert.strictEqual(result, fakeProjectId);
+      assert((client.auth.getProjectId as SinonStub).calledWithExactly());
+    });
 
-  it('has getProjectId method with callback', async () => {
-    const fakeProjectId = 'fake-project-id';
-    const client =
-      new securitysettingsserviceModule.v3beta1.SecuritySettingsServiceClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-    client.auth.getProjectId = sinon
-      .stub()
-      .callsArgWith(0, null, fakeProjectId);
-    const promise = new Promise((resolve, reject) => {
-      client.getProjectId((err?: Error | null, projectId?: string | null) => {
-        if (err) {
-          reject(err);
-        } else {
-          resolve(projectId);
-        }
+    it('has getProjectId method with callback', async () => {
+      const fakeProjectId = 'fake-project-id';
+      const client =
+        new securitysettingsserviceModule.v3beta1.SecuritySettingsServiceClient(
+          {
+            credentials: {client_email: 'bogus', private_key: 'bogus'},
+            projectId: 'bogus',
+          }
+        );
+      client.auth.getProjectId = sinon
+        .stub()
+        .callsArgWith(0, null, fakeProjectId);
+      const promise = new Promise((resolve, reject) => {
+        client.getProjectId((err?: Error | null, projectId?: string | null) => {
+          if (err) {
+            reject(err);
+          } else {
+            resolve(projectId);
+          }
+        });
       });
+      const result = await promise;
+      assert.strictEqual(result, fakeProjectId);
     });
-    const result = await promise;
-    assert.strictEqual(result, fakeProjectId);
   });
 
   describe('createSecuritySettings', () => {
diff --git a/packages/google-cloud-dialogflow-cx/test/gapic_session_entity_types_v3.ts b/packages/google-cloud-dialogflow-cx/test/gapic_session_entity_types_v3.ts
index 270596df194..a4aa9b68a5a 100644
--- a/packages/google-cloud-dialogflow-cx/test/gapic_session_entity_types_v3.ts
+++ b/packages/google-cloud-dialogflow-cx/test/gapic_session_entity_types_v3.ts
@@ -25,12 +25,7 @@ import * as sessionentitytypesModule from '../src';
 
 import {PassThrough} from 'stream';
 
-import {
-  protobuf,
-  LROperation,
-  operationsProtos,
-  LocationProtos,
-} from 'google-gax';
+import {protobuf, operationsProtos, LocationProtos} from 'google-gax';
 
 function generateSampleMessage<T extends object>(instance: T) {
   const filledObject = (
@@ -118,101 +113,103 @@ function stubAsyncIterationCall<ResponseType>(
 }
 
 describe('v3.SessionEntityTypesClient', () => {
-  it('has servicePath', () => {
-    const servicePath =
-      sessionentitytypesModule.v3.SessionEntityTypesClient.servicePath;
-    assert(servicePath);
-  });
-
-  it('has apiEndpoint', () => {
-    const apiEndpoint =
-      sessionentitytypesModule.v3.SessionEntityTypesClient.apiEndpoint;
-    assert(apiEndpoint);
-  });
-
-  it('has port', () => {
-    const port = sessionentitytypesModule.v3.SessionEntityTypesClient.port;
-    assert(port);
-    assert(typeof port === 'number');
-  });
+  describe('Common methods', () => {
+    it('has servicePath', () => {
+      const servicePath =
+        sessionentitytypesModule.v3.SessionEntityTypesClient.servicePath;
+      assert(servicePath);
+    });
 
-  it('should create a client with no option', () => {
-    const client = new sessionentitytypesModule.v3.SessionEntityTypesClient();
-    assert(client);
-  });
+    it('has apiEndpoint', () => {
+      const apiEndpoint =
+        sessionentitytypesModule.v3.SessionEntityTypesClient.apiEndpoint;
+      assert(apiEndpoint);
+    });
 
-  it('should create a client with gRPC fallback', () => {
-    const client = new sessionentitytypesModule.v3.SessionEntityTypesClient({
-      fallback: true,
+    it('has port', () => {
+      const port = sessionentitytypesModule.v3.SessionEntityTypesClient.port;
+      assert(port);
+      assert(typeof port === 'number');
     });
-    assert(client);
-  });
 
-  it('has initialize method and supports deferred initialization', async () => {
-    const client = new sessionentitytypesModule.v3.SessionEntityTypesClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('should create a client with no option', () => {
+      const client = new sessionentitytypesModule.v3.SessionEntityTypesClient();
+      assert(client);
     });
-    assert.strictEqual(client.sessionEntityTypesStub, undefined);
-    await client.initialize();
-    assert(client.sessionEntityTypesStub);
-  });
 
-  it('has close method for the initialized client', done => {
-    const client = new sessionentitytypesModule.v3.SessionEntityTypesClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('should create a client with gRPC fallback', () => {
+      const client = new sessionentitytypesModule.v3.SessionEntityTypesClient({
+        fallback: true,
+      });
+      assert(client);
     });
-    client.initialize();
-    assert(client.sessionEntityTypesStub);
-    client.close().then(() => {
-      done();
+
+    it('has initialize method and supports deferred initialization', async () => {
+      const client = new sessionentitytypesModule.v3.SessionEntityTypesClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      assert.strictEqual(client.sessionEntityTypesStub, undefined);
+      await client.initialize();
+      assert(client.sessionEntityTypesStub);
     });
-  });
 
-  it('has close method for the non-initialized client', done => {
-    const client = new sessionentitytypesModule.v3.SessionEntityTypesClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('has close method for the initialized client', done => {
+      const client = new sessionentitytypesModule.v3.SessionEntityTypesClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      client.initialize();
+      assert(client.sessionEntityTypesStub);
+      client.close().then(() => {
+        done();
+      });
     });
-    assert.strictEqual(client.sessionEntityTypesStub, undefined);
-    client.close().then(() => {
-      done();
+
+    it('has close method for the non-initialized client', done => {
+      const client = new sessionentitytypesModule.v3.SessionEntityTypesClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      assert.strictEqual(client.sessionEntityTypesStub, undefined);
+      client.close().then(() => {
+        done();
+      });
     });
-  });
 
-  it('has getProjectId method', async () => {
-    const fakeProjectId = 'fake-project-id';
-    const client = new sessionentitytypesModule.v3.SessionEntityTypesClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('has getProjectId method', async () => {
+      const fakeProjectId = 'fake-project-id';
+      const client = new sessionentitytypesModule.v3.SessionEntityTypesClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      client.auth.getProjectId = sinon.stub().resolves(fakeProjectId);
+      const result = await client.getProjectId();
+      assert.strictEqual(result, fakeProjectId);
+      assert((client.auth.getProjectId as SinonStub).calledWithExactly());
     });
-    client.auth.getProjectId = sinon.stub().resolves(fakeProjectId);
-    const result = await client.getProjectId();
-    assert.strictEqual(result, fakeProjectId);
-    assert((client.auth.getProjectId as SinonStub).calledWithExactly());
-  });
 
-  it('has getProjectId method with callback', async () => {
-    const fakeProjectId = 'fake-project-id';
-    const client = new sessionentitytypesModule.v3.SessionEntityTypesClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
-    });
-    client.auth.getProjectId = sinon
-      .stub()
-      .callsArgWith(0, null, fakeProjectId);
-    const promise = new Promise((resolve, reject) => {
-      client.getProjectId((err?: Error | null, projectId?: string | null) => {
-        if (err) {
-          reject(err);
-        } else {
-          resolve(projectId);
-        }
+    it('has getProjectId method with callback', async () => {
+      const fakeProjectId = 'fake-project-id';
+      const client = new sessionentitytypesModule.v3.SessionEntityTypesClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      client.auth.getProjectId = sinon
+        .stub()
+        .callsArgWith(0, null, fakeProjectId);
+      const promise = new Promise((resolve, reject) => {
+        client.getProjectId((err?: Error | null, projectId?: string | null) => {
+          if (err) {
+            reject(err);
+          } else {
+            resolve(projectId);
+          }
+        });
       });
+      const result = await promise;
+      assert.strictEqual(result, fakeProjectId);
     });
-    const result = await promise;
-    assert.strictEqual(result, fakeProjectId);
   });
 
   describe('getSessionEntityType', () => {
diff --git a/packages/google-cloud-dialogflow-cx/test/gapic_session_entity_types_v3beta1.ts b/packages/google-cloud-dialogflow-cx/test/gapic_session_entity_types_v3beta1.ts
index f4ec221dcb1..e3da2eb95ad 100644
--- a/packages/google-cloud-dialogflow-cx/test/gapic_session_entity_types_v3beta1.ts
+++ b/packages/google-cloud-dialogflow-cx/test/gapic_session_entity_types_v3beta1.ts
@@ -25,12 +25,7 @@ import * as sessionentitytypesModule from '../src';
 
 import {PassThrough} from 'stream';
 
-import {
-  protobuf,
-  LROperation,
-  operationsProtos,
-  LocationProtos,
-} from 'google-gax';
+import {protobuf, operationsProtos, LocationProtos} from 'google-gax';
 
 function generateSampleMessage<T extends object>(instance: T) {
   const filledObject = (
@@ -118,108 +113,111 @@ function stubAsyncIterationCall<ResponseType>(
 }
 
 describe('v3beta1.SessionEntityTypesClient', () => {
-  it('has servicePath', () => {
-    const servicePath =
-      sessionentitytypesModule.v3beta1.SessionEntityTypesClient.servicePath;
-    assert(servicePath);
-  });
+  describe('Common methods', () => {
+    it('has servicePath', () => {
+      const servicePath =
+        sessionentitytypesModule.v3beta1.SessionEntityTypesClient.servicePath;
+      assert(servicePath);
+    });
 
-  it('has apiEndpoint', () => {
-    const apiEndpoint =
-      sessionentitytypesModule.v3beta1.SessionEntityTypesClient.apiEndpoint;
-    assert(apiEndpoint);
-  });
+    it('has apiEndpoint', () => {
+      const apiEndpoint =
+        sessionentitytypesModule.v3beta1.SessionEntityTypesClient.apiEndpoint;
+      assert(apiEndpoint);
+    });
 
-  it('has port', () => {
-    const port = sessionentitytypesModule.v3beta1.SessionEntityTypesClient.port;
-    assert(port);
-    assert(typeof port === 'number');
-  });
+    it('has port', () => {
+      const port =
+        sessionentitytypesModule.v3beta1.SessionEntityTypesClient.port;
+      assert(port);
+      assert(typeof port === 'number');
+    });
 
-  it('should create a client with no option', () => {
-    const client =
-      new sessionentitytypesModule.v3beta1.SessionEntityTypesClient();
-    assert(client);
-  });
+    it('should create a client with no option', () => {
+      const client =
+        new sessionentitytypesModule.v3beta1.SessionEntityTypesClient();
+      assert(client);
+    });
 
-  it('should create a client with gRPC fallback', () => {
-    const client =
-      new sessionentitytypesModule.v3beta1.SessionEntityTypesClient({
-        fallback: true,
-      });
-    assert(client);
-  });
+    it('should create a client with gRPC fallback', () => {
+      const client =
+        new sessionentitytypesModule.v3beta1.SessionEntityTypesClient({
+          fallback: true,
+        });
+      assert(client);
+    });
 
-  it('has initialize method and supports deferred initialization', async () => {
-    const client =
-      new sessionentitytypesModule.v3beta1.SessionEntityTypesClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-    assert.strictEqual(client.sessionEntityTypesStub, undefined);
-    await client.initialize();
-    assert(client.sessionEntityTypesStub);
-  });
+    it('has initialize method and supports deferred initialization', async () => {
+      const client =
+        new sessionentitytypesModule.v3beta1.SessionEntityTypesClient({
+          credentials: {client_email: 'bogus', private_key: 'bogus'},
+          projectId: 'bogus',
+        });
+      assert.strictEqual(client.sessionEntityTypesStub, undefined);
+      await client.initialize();
+      assert(client.sessionEntityTypesStub);
+    });
 
-  it('has close method for the initialized client', done => {
-    const client =
-      new sessionentitytypesModule.v3beta1.SessionEntityTypesClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
+    it('has close method for the initialized client', done => {
+      const client =
+        new sessionentitytypesModule.v3beta1.SessionEntityTypesClient({
+          credentials: {client_email: 'bogus', private_key: 'bogus'},
+          projectId: 'bogus',
+        });
+      client.initialize();
+      assert(client.sessionEntityTypesStub);
+      client.close().then(() => {
+        done();
       });
-    client.initialize();
-    assert(client.sessionEntityTypesStub);
-    client.close().then(() => {
-      done();
     });
-  });
 
-  it('has close method for the non-initialized client', done => {
-    const client =
-      new sessionentitytypesModule.v3beta1.SessionEntityTypesClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
+    it('has close method for the non-initialized client', done => {
+      const client =
+        new sessionentitytypesModule.v3beta1.SessionEntityTypesClient({
+          credentials: {client_email: 'bogus', private_key: 'bogus'},
+          projectId: 'bogus',
+        });
+      assert.strictEqual(client.sessionEntityTypesStub, undefined);
+      client.close().then(() => {
+        done();
       });
-    assert.strictEqual(client.sessionEntityTypesStub, undefined);
-    client.close().then(() => {
-      done();
     });
-  });
 
-  it('has getProjectId method', async () => {
-    const fakeProjectId = 'fake-project-id';
-    const client =
-      new sessionentitytypesModule.v3beta1.SessionEntityTypesClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-    client.auth.getProjectId = sinon.stub().resolves(fakeProjectId);
-    const result = await client.getProjectId();
-    assert.strictEqual(result, fakeProjectId);
-    assert((client.auth.getProjectId as SinonStub).calledWithExactly());
-  });
+    it('has getProjectId method', async () => {
+      const fakeProjectId = 'fake-project-id';
+      const client =
+        new sessionentitytypesModule.v3beta1.SessionEntityTypesClient({
+          credentials: {client_email: 'bogus', private_key: 'bogus'},
+          projectId: 'bogus',
+        });
+      client.auth.getProjectId = sinon.stub().resolves(fakeProjectId);
+      const result = await client.getProjectId();
+      assert.strictEqual(result, fakeProjectId);
+      assert((client.auth.getProjectId as SinonStub).calledWithExactly());
+    });
 
-  it('has getProjectId method with callback', async () => {
-    const fakeProjectId = 'fake-project-id';
-    const client =
-      new sessionentitytypesModule.v3beta1.SessionEntityTypesClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-    client.auth.getProjectId = sinon
-      .stub()
-      .callsArgWith(0, null, fakeProjectId);
-    const promise = new Promise((resolve, reject) => {
-      client.getProjectId((err?: Error | null, projectId?: string | null) => {
-        if (err) {
-          reject(err);
-        } else {
-          resolve(projectId);
-        }
+    it('has getProjectId method with callback', async () => {
+      const fakeProjectId = 'fake-project-id';
+      const client =
+        new sessionentitytypesModule.v3beta1.SessionEntityTypesClient({
+          credentials: {client_email: 'bogus', private_key: 'bogus'},
+          projectId: 'bogus',
+        });
+      client.auth.getProjectId = sinon
+        .stub()
+        .callsArgWith(0, null, fakeProjectId);
+      const promise = new Promise((resolve, reject) => {
+        client.getProjectId((err?: Error | null, projectId?: string | null) => {
+          if (err) {
+            reject(err);
+          } else {
+            resolve(projectId);
+          }
+        });
       });
+      const result = await promise;
+      assert.strictEqual(result, fakeProjectId);
     });
-    const result = await promise;
-    assert.strictEqual(result, fakeProjectId);
   });
 
   describe('getSessionEntityType', () => {
diff --git a/packages/google-cloud-dialogflow-cx/test/gapic_sessions_v3.ts b/packages/google-cloud-dialogflow-cx/test/gapic_sessions_v3.ts
index d7994779a88..0c57a3cd9b1 100644
--- a/packages/google-cloud-dialogflow-cx/test/gapic_sessions_v3.ts
+++ b/packages/google-cloud-dialogflow-cx/test/gapic_sessions_v3.ts
@@ -25,12 +25,7 @@ import * as sessionsModule from '../src';
 
 import {PassThrough} from 'stream';
 
-import {
-  protobuf,
-  LROperation,
-  operationsProtos,
-  LocationProtos,
-} from 'google-gax';
+import {protobuf, operationsProtos, LocationProtos} from 'google-gax';
 
 function generateSampleMessage<T extends object>(instance: T) {
   const filledObject = (
@@ -94,99 +89,101 @@ function stubAsyncIterationCall<ResponseType>(
 }
 
 describe('v3.SessionsClient', () => {
-  it('has servicePath', () => {
-    const servicePath = sessionsModule.v3.SessionsClient.servicePath;
-    assert(servicePath);
-  });
-
-  it('has apiEndpoint', () => {
-    const apiEndpoint = sessionsModule.v3.SessionsClient.apiEndpoint;
-    assert(apiEndpoint);
-  });
-
-  it('has port', () => {
-    const port = sessionsModule.v3.SessionsClient.port;
-    assert(port);
-    assert(typeof port === 'number');
-  });
-
-  it('should create a client with no option', () => {
-    const client = new sessionsModule.v3.SessionsClient();
-    assert(client);
-  });
+  describe('Common methods', () => {
+    it('has servicePath', () => {
+      const servicePath = sessionsModule.v3.SessionsClient.servicePath;
+      assert(servicePath);
+    });
 
-  it('should create a client with gRPC fallback', () => {
-    const client = new sessionsModule.v3.SessionsClient({
-      fallback: true,
+    it('has apiEndpoint', () => {
+      const apiEndpoint = sessionsModule.v3.SessionsClient.apiEndpoint;
+      assert(apiEndpoint);
     });
-    assert(client);
-  });
 
-  it('has initialize method and supports deferred initialization', async () => {
-    const client = new sessionsModule.v3.SessionsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('has port', () => {
+      const port = sessionsModule.v3.SessionsClient.port;
+      assert(port);
+      assert(typeof port === 'number');
     });
-    assert.strictEqual(client.sessionsStub, undefined);
-    await client.initialize();
-    assert(client.sessionsStub);
-  });
 
-  it('has close method for the initialized client', done => {
-    const client = new sessionsModule.v3.SessionsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('should create a client with no option', () => {
+      const client = new sessionsModule.v3.SessionsClient();
+      assert(client);
     });
-    client.initialize();
-    assert(client.sessionsStub);
-    client.close().then(() => {
-      done();
+
+    it('should create a client with gRPC fallback', () => {
+      const client = new sessionsModule.v3.SessionsClient({
+        fallback: true,
+      });
+      assert(client);
     });
-  });
 
-  it('has close method for the non-initialized client', done => {
-    const client = new sessionsModule.v3.SessionsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('has initialize method and supports deferred initialization', async () => {
+      const client = new sessionsModule.v3.SessionsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      assert.strictEqual(client.sessionsStub, undefined);
+      await client.initialize();
+      assert(client.sessionsStub);
     });
-    assert.strictEqual(client.sessionsStub, undefined);
-    client.close().then(() => {
-      done();
+
+    it('has close method for the initialized client', done => {
+      const client = new sessionsModule.v3.SessionsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      client.initialize();
+      assert(client.sessionsStub);
+      client.close().then(() => {
+        done();
+      });
     });
-  });
 
-  it('has getProjectId method', async () => {
-    const fakeProjectId = 'fake-project-id';
-    const client = new sessionsModule.v3.SessionsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('has close method for the non-initialized client', done => {
+      const client = new sessionsModule.v3.SessionsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      assert.strictEqual(client.sessionsStub, undefined);
+      client.close().then(() => {
+        done();
+      });
     });
-    client.auth.getProjectId = sinon.stub().resolves(fakeProjectId);
-    const result = await client.getProjectId();
-    assert.strictEqual(result, fakeProjectId);
-    assert((client.auth.getProjectId as SinonStub).calledWithExactly());
-  });
 
-  it('has getProjectId method with callback', async () => {
-    const fakeProjectId = 'fake-project-id';
-    const client = new sessionsModule.v3.SessionsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('has getProjectId method', async () => {
+      const fakeProjectId = 'fake-project-id';
+      const client = new sessionsModule.v3.SessionsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      client.auth.getProjectId = sinon.stub().resolves(fakeProjectId);
+      const result = await client.getProjectId();
+      assert.strictEqual(result, fakeProjectId);
+      assert((client.auth.getProjectId as SinonStub).calledWithExactly());
     });
-    client.auth.getProjectId = sinon
-      .stub()
-      .callsArgWith(0, null, fakeProjectId);
-    const promise = new Promise((resolve, reject) => {
-      client.getProjectId((err?: Error | null, projectId?: string | null) => {
-        if (err) {
-          reject(err);
-        } else {
-          resolve(projectId);
-        }
+
+    it('has getProjectId method with callback', async () => {
+      const fakeProjectId = 'fake-project-id';
+      const client = new sessionsModule.v3.SessionsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      client.auth.getProjectId = sinon
+        .stub()
+        .callsArgWith(0, null, fakeProjectId);
+      const promise = new Promise((resolve, reject) => {
+        client.getProjectId((err?: Error | null, projectId?: string | null) => {
+          if (err) {
+            reject(err);
+          } else {
+            resolve(projectId);
+          }
+        });
       });
+      const result = await promise;
+      assert.strictEqual(result, fakeProjectId);
     });
-    const result = await promise;
-    assert.strictEqual(result, fakeProjectId);
   });
 
   describe('detectIntent', () => {
diff --git a/packages/google-cloud-dialogflow-cx/test/gapic_sessions_v3beta1.ts b/packages/google-cloud-dialogflow-cx/test/gapic_sessions_v3beta1.ts
index e3b6a63f8ca..71f683bf3e6 100644
--- a/packages/google-cloud-dialogflow-cx/test/gapic_sessions_v3beta1.ts
+++ b/packages/google-cloud-dialogflow-cx/test/gapic_sessions_v3beta1.ts
@@ -25,12 +25,7 @@ import * as sessionsModule from '../src';
 
 import {PassThrough} from 'stream';
 
-import {
-  protobuf,
-  LROperation,
-  operationsProtos,
-  LocationProtos,
-} from 'google-gax';
+import {protobuf, operationsProtos, LocationProtos} from 'google-gax';
 
 function generateSampleMessage<T extends object>(instance: T) {
   const filledObject = (
@@ -94,99 +89,101 @@ function stubAsyncIterationCall<ResponseType>(
 }
 
 describe('v3beta1.SessionsClient', () => {
-  it('has servicePath', () => {
-    const servicePath = sessionsModule.v3beta1.SessionsClient.servicePath;
-    assert(servicePath);
-  });
-
-  it('has apiEndpoint', () => {
-    const apiEndpoint = sessionsModule.v3beta1.SessionsClient.apiEndpoint;
-    assert(apiEndpoint);
-  });
-
-  it('has port', () => {
-    const port = sessionsModule.v3beta1.SessionsClient.port;
-    assert(port);
-    assert(typeof port === 'number');
-  });
-
-  it('should create a client with no option', () => {
-    const client = new sessionsModule.v3beta1.SessionsClient();
-    assert(client);
-  });
+  describe('Common methods', () => {
+    it('has servicePath', () => {
+      const servicePath = sessionsModule.v3beta1.SessionsClient.servicePath;
+      assert(servicePath);
+    });
 
-  it('should create a client with gRPC fallback', () => {
-    const client = new sessionsModule.v3beta1.SessionsClient({
-      fallback: true,
+    it('has apiEndpoint', () => {
+      const apiEndpoint = sessionsModule.v3beta1.SessionsClient.apiEndpoint;
+      assert(apiEndpoint);
     });
-    assert(client);
-  });
 
-  it('has initialize method and supports deferred initialization', async () => {
-    const client = new sessionsModule.v3beta1.SessionsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('has port', () => {
+      const port = sessionsModule.v3beta1.SessionsClient.port;
+      assert(port);
+      assert(typeof port === 'number');
     });
-    assert.strictEqual(client.sessionsStub, undefined);
-    await client.initialize();
-    assert(client.sessionsStub);
-  });
 
-  it('has close method for the initialized client', done => {
-    const client = new sessionsModule.v3beta1.SessionsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('should create a client with no option', () => {
+      const client = new sessionsModule.v3beta1.SessionsClient();
+      assert(client);
     });
-    client.initialize();
-    assert(client.sessionsStub);
-    client.close().then(() => {
-      done();
+
+    it('should create a client with gRPC fallback', () => {
+      const client = new sessionsModule.v3beta1.SessionsClient({
+        fallback: true,
+      });
+      assert(client);
     });
-  });
 
-  it('has close method for the non-initialized client', done => {
-    const client = new sessionsModule.v3beta1.SessionsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('has initialize method and supports deferred initialization', async () => {
+      const client = new sessionsModule.v3beta1.SessionsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      assert.strictEqual(client.sessionsStub, undefined);
+      await client.initialize();
+      assert(client.sessionsStub);
     });
-    assert.strictEqual(client.sessionsStub, undefined);
-    client.close().then(() => {
-      done();
+
+    it('has close method for the initialized client', done => {
+      const client = new sessionsModule.v3beta1.SessionsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      client.initialize();
+      assert(client.sessionsStub);
+      client.close().then(() => {
+        done();
+      });
     });
-  });
 
-  it('has getProjectId method', async () => {
-    const fakeProjectId = 'fake-project-id';
-    const client = new sessionsModule.v3beta1.SessionsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('has close method for the non-initialized client', done => {
+      const client = new sessionsModule.v3beta1.SessionsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      assert.strictEqual(client.sessionsStub, undefined);
+      client.close().then(() => {
+        done();
+      });
     });
-    client.auth.getProjectId = sinon.stub().resolves(fakeProjectId);
-    const result = await client.getProjectId();
-    assert.strictEqual(result, fakeProjectId);
-    assert((client.auth.getProjectId as SinonStub).calledWithExactly());
-  });
 
-  it('has getProjectId method with callback', async () => {
-    const fakeProjectId = 'fake-project-id';
-    const client = new sessionsModule.v3beta1.SessionsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('has getProjectId method', async () => {
+      const fakeProjectId = 'fake-project-id';
+      const client = new sessionsModule.v3beta1.SessionsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      client.auth.getProjectId = sinon.stub().resolves(fakeProjectId);
+      const result = await client.getProjectId();
+      assert.strictEqual(result, fakeProjectId);
+      assert((client.auth.getProjectId as SinonStub).calledWithExactly());
     });
-    client.auth.getProjectId = sinon
-      .stub()
-      .callsArgWith(0, null, fakeProjectId);
-    const promise = new Promise((resolve, reject) => {
-      client.getProjectId((err?: Error | null, projectId?: string | null) => {
-        if (err) {
-          reject(err);
-        } else {
-          resolve(projectId);
-        }
+
+    it('has getProjectId method with callback', async () => {
+      const fakeProjectId = 'fake-project-id';
+      const client = new sessionsModule.v3beta1.SessionsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      client.auth.getProjectId = sinon
+        .stub()
+        .callsArgWith(0, null, fakeProjectId);
+      const promise = new Promise((resolve, reject) => {
+        client.getProjectId((err?: Error | null, projectId?: string | null) => {
+          if (err) {
+            reject(err);
+          } else {
+            resolve(projectId);
+          }
+        });
       });
+      const result = await promise;
+      assert.strictEqual(result, fakeProjectId);
     });
-    const result = await promise;
-    assert.strictEqual(result, fakeProjectId);
   });
 
   describe('detectIntent', () => {
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 484a2bbea1b..48c3d1ece16 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
@@ -150,99 +150,101 @@ function stubAsyncIterationCall<ResponseType>(
 }
 
 describe('v3.TestCasesClient', () => {
-  it('has servicePath', () => {
-    const servicePath = testcasesModule.v3.TestCasesClient.servicePath;
-    assert(servicePath);
-  });
-
-  it('has apiEndpoint', () => {
-    const apiEndpoint = testcasesModule.v3.TestCasesClient.apiEndpoint;
-    assert(apiEndpoint);
-  });
-
-  it('has port', () => {
-    const port = testcasesModule.v3.TestCasesClient.port;
-    assert(port);
-    assert(typeof port === 'number');
-  });
-
-  it('should create a client with no option', () => {
-    const client = new testcasesModule.v3.TestCasesClient();
-    assert(client);
-  });
+  describe('Common methods', () => {
+    it('has servicePath', () => {
+      const servicePath = testcasesModule.v3.TestCasesClient.servicePath;
+      assert(servicePath);
+    });
 
-  it('should create a client with gRPC fallback', () => {
-    const client = new testcasesModule.v3.TestCasesClient({
-      fallback: true,
+    it('has apiEndpoint', () => {
+      const apiEndpoint = testcasesModule.v3.TestCasesClient.apiEndpoint;
+      assert(apiEndpoint);
     });
-    assert(client);
-  });
 
-  it('has initialize method and supports deferred initialization', async () => {
-    const client = new testcasesModule.v3.TestCasesClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('has port', () => {
+      const port = testcasesModule.v3.TestCasesClient.port;
+      assert(port);
+      assert(typeof port === 'number');
     });
-    assert.strictEqual(client.testCasesStub, undefined);
-    await client.initialize();
-    assert(client.testCasesStub);
-  });
 
-  it('has close method for the initialized client', done => {
-    const client = new testcasesModule.v3.TestCasesClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('should create a client with no option', () => {
+      const client = new testcasesModule.v3.TestCasesClient();
+      assert(client);
     });
-    client.initialize();
-    assert(client.testCasesStub);
-    client.close().then(() => {
-      done();
+
+    it('should create a client with gRPC fallback', () => {
+      const client = new testcasesModule.v3.TestCasesClient({
+        fallback: true,
+      });
+      assert(client);
     });
-  });
 
-  it('has close method for the non-initialized client', done => {
-    const client = new testcasesModule.v3.TestCasesClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('has initialize method and supports deferred initialization', async () => {
+      const client = new testcasesModule.v3.TestCasesClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      assert.strictEqual(client.testCasesStub, undefined);
+      await client.initialize();
+      assert(client.testCasesStub);
     });
-    assert.strictEqual(client.testCasesStub, undefined);
-    client.close().then(() => {
-      done();
+
+    it('has close method for the initialized client', done => {
+      const client = new testcasesModule.v3.TestCasesClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      client.initialize();
+      assert(client.testCasesStub);
+      client.close().then(() => {
+        done();
+      });
     });
-  });
 
-  it('has getProjectId method', async () => {
-    const fakeProjectId = 'fake-project-id';
-    const client = new testcasesModule.v3.TestCasesClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('has close method for the non-initialized client', done => {
+      const client = new testcasesModule.v3.TestCasesClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      assert.strictEqual(client.testCasesStub, undefined);
+      client.close().then(() => {
+        done();
+      });
     });
-    client.auth.getProjectId = sinon.stub().resolves(fakeProjectId);
-    const result = await client.getProjectId();
-    assert.strictEqual(result, fakeProjectId);
-    assert((client.auth.getProjectId as SinonStub).calledWithExactly());
-  });
 
-  it('has getProjectId method with callback', async () => {
-    const fakeProjectId = 'fake-project-id';
-    const client = new testcasesModule.v3.TestCasesClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('has getProjectId method', async () => {
+      const fakeProjectId = 'fake-project-id';
+      const client = new testcasesModule.v3.TestCasesClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      client.auth.getProjectId = sinon.stub().resolves(fakeProjectId);
+      const result = await client.getProjectId();
+      assert.strictEqual(result, fakeProjectId);
+      assert((client.auth.getProjectId as SinonStub).calledWithExactly());
     });
-    client.auth.getProjectId = sinon
-      .stub()
-      .callsArgWith(0, null, fakeProjectId);
-    const promise = new Promise((resolve, reject) => {
-      client.getProjectId((err?: Error | null, projectId?: string | null) => {
-        if (err) {
-          reject(err);
-        } else {
-          resolve(projectId);
-        }
+
+    it('has getProjectId method with callback', async () => {
+      const fakeProjectId = 'fake-project-id';
+      const client = new testcasesModule.v3.TestCasesClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      client.auth.getProjectId = sinon
+        .stub()
+        .callsArgWith(0, null, fakeProjectId);
+      const promise = new Promise((resolve, reject) => {
+        client.getProjectId((err?: Error | null, projectId?: string | null) => {
+          if (err) {
+            reject(err);
+          } else {
+            resolve(projectId);
+          }
+        });
       });
+      const result = await promise;
+      assert.strictEqual(result, fakeProjectId);
     });
-    const result = await promise;
-    assert.strictEqual(result, fakeProjectId);
   });
 
   describe('batchDeleteTestCases', () => {
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 91b567d5ced..bfe12d5b02e 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
@@ -150,99 +150,101 @@ function stubAsyncIterationCall<ResponseType>(
 }
 
 describe('v3beta1.TestCasesClient', () => {
-  it('has servicePath', () => {
-    const servicePath = testcasesModule.v3beta1.TestCasesClient.servicePath;
-    assert(servicePath);
-  });
-
-  it('has apiEndpoint', () => {
-    const apiEndpoint = testcasesModule.v3beta1.TestCasesClient.apiEndpoint;
-    assert(apiEndpoint);
-  });
-
-  it('has port', () => {
-    const port = testcasesModule.v3beta1.TestCasesClient.port;
-    assert(port);
-    assert(typeof port === 'number');
-  });
-
-  it('should create a client with no option', () => {
-    const client = new testcasesModule.v3beta1.TestCasesClient();
-    assert(client);
-  });
+  describe('Common methods', () => {
+    it('has servicePath', () => {
+      const servicePath = testcasesModule.v3beta1.TestCasesClient.servicePath;
+      assert(servicePath);
+    });
 
-  it('should create a client with gRPC fallback', () => {
-    const client = new testcasesModule.v3beta1.TestCasesClient({
-      fallback: true,
+    it('has apiEndpoint', () => {
+      const apiEndpoint = testcasesModule.v3beta1.TestCasesClient.apiEndpoint;
+      assert(apiEndpoint);
     });
-    assert(client);
-  });
 
-  it('has initialize method and supports deferred initialization', async () => {
-    const client = new testcasesModule.v3beta1.TestCasesClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('has port', () => {
+      const port = testcasesModule.v3beta1.TestCasesClient.port;
+      assert(port);
+      assert(typeof port === 'number');
     });
-    assert.strictEqual(client.testCasesStub, undefined);
-    await client.initialize();
-    assert(client.testCasesStub);
-  });
 
-  it('has close method for the initialized client', done => {
-    const client = new testcasesModule.v3beta1.TestCasesClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('should create a client with no option', () => {
+      const client = new testcasesModule.v3beta1.TestCasesClient();
+      assert(client);
     });
-    client.initialize();
-    assert(client.testCasesStub);
-    client.close().then(() => {
-      done();
+
+    it('should create a client with gRPC fallback', () => {
+      const client = new testcasesModule.v3beta1.TestCasesClient({
+        fallback: true,
+      });
+      assert(client);
     });
-  });
 
-  it('has close method for the non-initialized client', done => {
-    const client = new testcasesModule.v3beta1.TestCasesClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('has initialize method and supports deferred initialization', async () => {
+      const client = new testcasesModule.v3beta1.TestCasesClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      assert.strictEqual(client.testCasesStub, undefined);
+      await client.initialize();
+      assert(client.testCasesStub);
     });
-    assert.strictEqual(client.testCasesStub, undefined);
-    client.close().then(() => {
-      done();
+
+    it('has close method for the initialized client', done => {
+      const client = new testcasesModule.v3beta1.TestCasesClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      client.initialize();
+      assert(client.testCasesStub);
+      client.close().then(() => {
+        done();
+      });
     });
-  });
 
-  it('has getProjectId method', async () => {
-    const fakeProjectId = 'fake-project-id';
-    const client = new testcasesModule.v3beta1.TestCasesClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('has close method for the non-initialized client', done => {
+      const client = new testcasesModule.v3beta1.TestCasesClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      assert.strictEqual(client.testCasesStub, undefined);
+      client.close().then(() => {
+        done();
+      });
     });
-    client.auth.getProjectId = sinon.stub().resolves(fakeProjectId);
-    const result = await client.getProjectId();
-    assert.strictEqual(result, fakeProjectId);
-    assert((client.auth.getProjectId as SinonStub).calledWithExactly());
-  });
 
-  it('has getProjectId method with callback', async () => {
-    const fakeProjectId = 'fake-project-id';
-    const client = new testcasesModule.v3beta1.TestCasesClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('has getProjectId method', async () => {
+      const fakeProjectId = 'fake-project-id';
+      const client = new testcasesModule.v3beta1.TestCasesClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      client.auth.getProjectId = sinon.stub().resolves(fakeProjectId);
+      const result = await client.getProjectId();
+      assert.strictEqual(result, fakeProjectId);
+      assert((client.auth.getProjectId as SinonStub).calledWithExactly());
     });
-    client.auth.getProjectId = sinon
-      .stub()
-      .callsArgWith(0, null, fakeProjectId);
-    const promise = new Promise((resolve, reject) => {
-      client.getProjectId((err?: Error | null, projectId?: string | null) => {
-        if (err) {
-          reject(err);
-        } else {
-          resolve(projectId);
-        }
+
+    it('has getProjectId method with callback', async () => {
+      const fakeProjectId = 'fake-project-id';
+      const client = new testcasesModule.v3beta1.TestCasesClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      client.auth.getProjectId = sinon
+        .stub()
+        .callsArgWith(0, null, fakeProjectId);
+      const promise = new Promise((resolve, reject) => {
+        client.getProjectId((err?: Error | null, projectId?: string | null) => {
+          if (err) {
+            reject(err);
+          } else {
+            resolve(projectId);
+          }
+        });
       });
+      const result = await promise;
+      assert.strictEqual(result, fakeProjectId);
     });
-    const result = await promise;
-    assert.strictEqual(result, fakeProjectId);
   });
 
   describe('batchDeleteTestCases', () => {
diff --git a/packages/google-cloud-dialogflow-cx/test/gapic_transition_route_groups_v3.ts b/packages/google-cloud-dialogflow-cx/test/gapic_transition_route_groups_v3.ts
index da8c3b11fe2..ede899cd2d3 100644
--- a/packages/google-cloud-dialogflow-cx/test/gapic_transition_route_groups_v3.ts
+++ b/packages/google-cloud-dialogflow-cx/test/gapic_transition_route_groups_v3.ts
@@ -25,12 +25,7 @@ import * as transitionroutegroupsModule from '../src';
 
 import {PassThrough} from 'stream';
 
-import {
-  protobuf,
-  LROperation,
-  operationsProtos,
-  LocationProtos,
-} from 'google-gax';
+import {protobuf, operationsProtos, LocationProtos} from 'google-gax';
 
 function generateSampleMessage<T extends object>(instance: T) {
   const filledObject = (
@@ -118,109 +113,111 @@ function stubAsyncIterationCall<ResponseType>(
 }
 
 describe('v3.TransitionRouteGroupsClient', () => {
-  it('has servicePath', () => {
-    const servicePath =
-      transitionroutegroupsModule.v3.TransitionRouteGroupsClient.servicePath;
-    assert(servicePath);
-  });
+  describe('Common methods', () => {
+    it('has servicePath', () => {
+      const servicePath =
+        transitionroutegroupsModule.v3.TransitionRouteGroupsClient.servicePath;
+      assert(servicePath);
+    });
 
-  it('has apiEndpoint', () => {
-    const apiEndpoint =
-      transitionroutegroupsModule.v3.TransitionRouteGroupsClient.apiEndpoint;
-    assert(apiEndpoint);
-  });
+    it('has apiEndpoint', () => {
+      const apiEndpoint =
+        transitionroutegroupsModule.v3.TransitionRouteGroupsClient.apiEndpoint;
+      assert(apiEndpoint);
+    });
 
-  it('has port', () => {
-    const port =
-      transitionroutegroupsModule.v3.TransitionRouteGroupsClient.port;
-    assert(port);
-    assert(typeof port === 'number');
-  });
+    it('has port', () => {
+      const port =
+        transitionroutegroupsModule.v3.TransitionRouteGroupsClient.port;
+      assert(port);
+      assert(typeof port === 'number');
+    });
 
-  it('should create a client with no option', () => {
-    const client =
-      new transitionroutegroupsModule.v3.TransitionRouteGroupsClient();
-    assert(client);
-  });
+    it('should create a client with no option', () => {
+      const client =
+        new transitionroutegroupsModule.v3.TransitionRouteGroupsClient();
+      assert(client);
+    });
 
-  it('should create a client with gRPC fallback', () => {
-    const client =
-      new transitionroutegroupsModule.v3.TransitionRouteGroupsClient({
-        fallback: true,
-      });
-    assert(client);
-  });
+    it('should create a client with gRPC fallback', () => {
+      const client =
+        new transitionroutegroupsModule.v3.TransitionRouteGroupsClient({
+          fallback: true,
+        });
+      assert(client);
+    });
 
-  it('has initialize method and supports deferred initialization', async () => {
-    const client =
-      new transitionroutegroupsModule.v3.TransitionRouteGroupsClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-    assert.strictEqual(client.transitionRouteGroupsStub, undefined);
-    await client.initialize();
-    assert(client.transitionRouteGroupsStub);
-  });
+    it('has initialize method and supports deferred initialization', async () => {
+      const client =
+        new transitionroutegroupsModule.v3.TransitionRouteGroupsClient({
+          credentials: {client_email: 'bogus', private_key: 'bogus'},
+          projectId: 'bogus',
+        });
+      assert.strictEqual(client.transitionRouteGroupsStub, undefined);
+      await client.initialize();
+      assert(client.transitionRouteGroupsStub);
+    });
 
-  it('has close method for the initialized client', done => {
-    const client =
-      new transitionroutegroupsModule.v3.TransitionRouteGroupsClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
+    it('has close method for the initialized client', done => {
+      const client =
+        new transitionroutegroupsModule.v3.TransitionRouteGroupsClient({
+          credentials: {client_email: 'bogus', private_key: 'bogus'},
+          projectId: 'bogus',
+        });
+      client.initialize();
+      assert(client.transitionRouteGroupsStub);
+      client.close().then(() => {
+        done();
       });
-    client.initialize();
-    assert(client.transitionRouteGroupsStub);
-    client.close().then(() => {
-      done();
     });
-  });
 
-  it('has close method for the non-initialized client', done => {
-    const client =
-      new transitionroutegroupsModule.v3.TransitionRouteGroupsClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
+    it('has close method for the non-initialized client', done => {
+      const client =
+        new transitionroutegroupsModule.v3.TransitionRouteGroupsClient({
+          credentials: {client_email: 'bogus', private_key: 'bogus'},
+          projectId: 'bogus',
+        });
+      assert.strictEqual(client.transitionRouteGroupsStub, undefined);
+      client.close().then(() => {
+        done();
       });
-    assert.strictEqual(client.transitionRouteGroupsStub, undefined);
-    client.close().then(() => {
-      done();
     });
-  });
 
-  it('has getProjectId method', async () => {
-    const fakeProjectId = 'fake-project-id';
-    const client =
-      new transitionroutegroupsModule.v3.TransitionRouteGroupsClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-    client.auth.getProjectId = sinon.stub().resolves(fakeProjectId);
-    const result = await client.getProjectId();
-    assert.strictEqual(result, fakeProjectId);
-    assert((client.auth.getProjectId as SinonStub).calledWithExactly());
-  });
+    it('has getProjectId method', async () => {
+      const fakeProjectId = 'fake-project-id';
+      const client =
+        new transitionroutegroupsModule.v3.TransitionRouteGroupsClient({
+          credentials: {client_email: 'bogus', private_key: 'bogus'},
+          projectId: 'bogus',
+        });
+      client.auth.getProjectId = sinon.stub().resolves(fakeProjectId);
+      const result = await client.getProjectId();
+      assert.strictEqual(result, fakeProjectId);
+      assert((client.auth.getProjectId as SinonStub).calledWithExactly());
+    });
 
-  it('has getProjectId method with callback', async () => {
-    const fakeProjectId = 'fake-project-id';
-    const client =
-      new transitionroutegroupsModule.v3.TransitionRouteGroupsClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-    client.auth.getProjectId = sinon
-      .stub()
-      .callsArgWith(0, null, fakeProjectId);
-    const promise = new Promise((resolve, reject) => {
-      client.getProjectId((err?: Error | null, projectId?: string | null) => {
-        if (err) {
-          reject(err);
-        } else {
-          resolve(projectId);
-        }
+    it('has getProjectId method with callback', async () => {
+      const fakeProjectId = 'fake-project-id';
+      const client =
+        new transitionroutegroupsModule.v3.TransitionRouteGroupsClient({
+          credentials: {client_email: 'bogus', private_key: 'bogus'},
+          projectId: 'bogus',
+        });
+      client.auth.getProjectId = sinon
+        .stub()
+        .callsArgWith(0, null, fakeProjectId);
+      const promise = new Promise((resolve, reject) => {
+        client.getProjectId((err?: Error | null, projectId?: string | null) => {
+          if (err) {
+            reject(err);
+          } else {
+            resolve(projectId);
+          }
+        });
       });
+      const result = await promise;
+      assert.strictEqual(result, fakeProjectId);
     });
-    const result = await promise;
-    assert.strictEqual(result, fakeProjectId);
   });
 
   describe('getTransitionRouteGroup', () => {
diff --git a/packages/google-cloud-dialogflow-cx/test/gapic_transition_route_groups_v3beta1.ts b/packages/google-cloud-dialogflow-cx/test/gapic_transition_route_groups_v3beta1.ts
index 035694d2559..e1c5a81f1c2 100644
--- a/packages/google-cloud-dialogflow-cx/test/gapic_transition_route_groups_v3beta1.ts
+++ b/packages/google-cloud-dialogflow-cx/test/gapic_transition_route_groups_v3beta1.ts
@@ -25,12 +25,7 @@ import * as transitionroutegroupsModule from '../src';
 
 import {PassThrough} from 'stream';
 
-import {
-  protobuf,
-  LROperation,
-  operationsProtos,
-  LocationProtos,
-} from 'google-gax';
+import {protobuf, operationsProtos, LocationProtos} from 'google-gax';
 
 function generateSampleMessage<T extends object>(instance: T) {
   const filledObject = (
@@ -118,111 +113,113 @@ function stubAsyncIterationCall<ResponseType>(
 }
 
 describe('v3beta1.TransitionRouteGroupsClient', () => {
-  it('has servicePath', () => {
-    const servicePath =
-      transitionroutegroupsModule.v3beta1.TransitionRouteGroupsClient
-        .servicePath;
-    assert(servicePath);
-  });
+  describe('Common methods', () => {
+    it('has servicePath', () => {
+      const servicePath =
+        transitionroutegroupsModule.v3beta1.TransitionRouteGroupsClient
+          .servicePath;
+      assert(servicePath);
+    });
 
-  it('has apiEndpoint', () => {
-    const apiEndpoint =
-      transitionroutegroupsModule.v3beta1.TransitionRouteGroupsClient
-        .apiEndpoint;
-    assert(apiEndpoint);
-  });
+    it('has apiEndpoint', () => {
+      const apiEndpoint =
+        transitionroutegroupsModule.v3beta1.TransitionRouteGroupsClient
+          .apiEndpoint;
+      assert(apiEndpoint);
+    });
 
-  it('has port', () => {
-    const port =
-      transitionroutegroupsModule.v3beta1.TransitionRouteGroupsClient.port;
-    assert(port);
-    assert(typeof port === 'number');
-  });
+    it('has port', () => {
+      const port =
+        transitionroutegroupsModule.v3beta1.TransitionRouteGroupsClient.port;
+      assert(port);
+      assert(typeof port === 'number');
+    });
 
-  it('should create a client with no option', () => {
-    const client =
-      new transitionroutegroupsModule.v3beta1.TransitionRouteGroupsClient();
-    assert(client);
-  });
+    it('should create a client with no option', () => {
+      const client =
+        new transitionroutegroupsModule.v3beta1.TransitionRouteGroupsClient();
+      assert(client);
+    });
 
-  it('should create a client with gRPC fallback', () => {
-    const client =
-      new transitionroutegroupsModule.v3beta1.TransitionRouteGroupsClient({
-        fallback: true,
-      });
-    assert(client);
-  });
+    it('should create a client with gRPC fallback', () => {
+      const client =
+        new transitionroutegroupsModule.v3beta1.TransitionRouteGroupsClient({
+          fallback: true,
+        });
+      assert(client);
+    });
 
-  it('has initialize method and supports deferred initialization', async () => {
-    const client =
-      new transitionroutegroupsModule.v3beta1.TransitionRouteGroupsClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-    assert.strictEqual(client.transitionRouteGroupsStub, undefined);
-    await client.initialize();
-    assert(client.transitionRouteGroupsStub);
-  });
+    it('has initialize method and supports deferred initialization', async () => {
+      const client =
+        new transitionroutegroupsModule.v3beta1.TransitionRouteGroupsClient({
+          credentials: {client_email: 'bogus', private_key: 'bogus'},
+          projectId: 'bogus',
+        });
+      assert.strictEqual(client.transitionRouteGroupsStub, undefined);
+      await client.initialize();
+      assert(client.transitionRouteGroupsStub);
+    });
 
-  it('has close method for the initialized client', done => {
-    const client =
-      new transitionroutegroupsModule.v3beta1.TransitionRouteGroupsClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
+    it('has close method for the initialized client', done => {
+      const client =
+        new transitionroutegroupsModule.v3beta1.TransitionRouteGroupsClient({
+          credentials: {client_email: 'bogus', private_key: 'bogus'},
+          projectId: 'bogus',
+        });
+      client.initialize();
+      assert(client.transitionRouteGroupsStub);
+      client.close().then(() => {
+        done();
       });
-    client.initialize();
-    assert(client.transitionRouteGroupsStub);
-    client.close().then(() => {
-      done();
     });
-  });
 
-  it('has close method for the non-initialized client', done => {
-    const client =
-      new transitionroutegroupsModule.v3beta1.TransitionRouteGroupsClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
+    it('has close method for the non-initialized client', done => {
+      const client =
+        new transitionroutegroupsModule.v3beta1.TransitionRouteGroupsClient({
+          credentials: {client_email: 'bogus', private_key: 'bogus'},
+          projectId: 'bogus',
+        });
+      assert.strictEqual(client.transitionRouteGroupsStub, undefined);
+      client.close().then(() => {
+        done();
       });
-    assert.strictEqual(client.transitionRouteGroupsStub, undefined);
-    client.close().then(() => {
-      done();
     });
-  });
 
-  it('has getProjectId method', async () => {
-    const fakeProjectId = 'fake-project-id';
-    const client =
-      new transitionroutegroupsModule.v3beta1.TransitionRouteGroupsClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-    client.auth.getProjectId = sinon.stub().resolves(fakeProjectId);
-    const result = await client.getProjectId();
-    assert.strictEqual(result, fakeProjectId);
-    assert((client.auth.getProjectId as SinonStub).calledWithExactly());
-  });
+    it('has getProjectId method', async () => {
+      const fakeProjectId = 'fake-project-id';
+      const client =
+        new transitionroutegroupsModule.v3beta1.TransitionRouteGroupsClient({
+          credentials: {client_email: 'bogus', private_key: 'bogus'},
+          projectId: 'bogus',
+        });
+      client.auth.getProjectId = sinon.stub().resolves(fakeProjectId);
+      const result = await client.getProjectId();
+      assert.strictEqual(result, fakeProjectId);
+      assert((client.auth.getProjectId as SinonStub).calledWithExactly());
+    });
 
-  it('has getProjectId method with callback', async () => {
-    const fakeProjectId = 'fake-project-id';
-    const client =
-      new transitionroutegroupsModule.v3beta1.TransitionRouteGroupsClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-    client.auth.getProjectId = sinon
-      .stub()
-      .callsArgWith(0, null, fakeProjectId);
-    const promise = new Promise((resolve, reject) => {
-      client.getProjectId((err?: Error | null, projectId?: string | null) => {
-        if (err) {
-          reject(err);
-        } else {
-          resolve(projectId);
-        }
+    it('has getProjectId method with callback', async () => {
+      const fakeProjectId = 'fake-project-id';
+      const client =
+        new transitionroutegroupsModule.v3beta1.TransitionRouteGroupsClient({
+          credentials: {client_email: 'bogus', private_key: 'bogus'},
+          projectId: 'bogus',
+        });
+      client.auth.getProjectId = sinon
+        .stub()
+        .callsArgWith(0, null, fakeProjectId);
+      const promise = new Promise((resolve, reject) => {
+        client.getProjectId((err?: Error | null, projectId?: string | null) => {
+          if (err) {
+            reject(err);
+          } else {
+            resolve(projectId);
+          }
+        });
       });
+      const result = await promise;
+      assert.strictEqual(result, fakeProjectId);
     });
-    const result = await promise;
-    assert.strictEqual(result, fakeProjectId);
   });
 
   describe('getTransitionRouteGroup', () => {
diff --git a/packages/google-cloud-dialogflow-cx/test/gapic_versions_v3.ts b/packages/google-cloud-dialogflow-cx/test/gapic_versions_v3.ts
index f9db8034499..babf1600377 100644
--- a/packages/google-cloud-dialogflow-cx/test/gapic_versions_v3.ts
+++ b/packages/google-cloud-dialogflow-cx/test/gapic_versions_v3.ts
@@ -150,99 +150,101 @@ function stubAsyncIterationCall<ResponseType>(
 }
 
 describe('v3.VersionsClient', () => {
-  it('has servicePath', () => {
-    const servicePath = versionsModule.v3.VersionsClient.servicePath;
-    assert(servicePath);
-  });
-
-  it('has apiEndpoint', () => {
-    const apiEndpoint = versionsModule.v3.VersionsClient.apiEndpoint;
-    assert(apiEndpoint);
-  });
-
-  it('has port', () => {
-    const port = versionsModule.v3.VersionsClient.port;
-    assert(port);
-    assert(typeof port === 'number');
-  });
+  describe('Common methods', () => {
+    it('has servicePath', () => {
+      const servicePath = versionsModule.v3.VersionsClient.servicePath;
+      assert(servicePath);
+    });
 
-  it('should create a client with no option', () => {
-    const client = new versionsModule.v3.VersionsClient();
-    assert(client);
-  });
+    it('has apiEndpoint', () => {
+      const apiEndpoint = versionsModule.v3.VersionsClient.apiEndpoint;
+      assert(apiEndpoint);
+    });
 
-  it('should create a client with gRPC fallback', () => {
-    const client = new versionsModule.v3.VersionsClient({
-      fallback: true,
+    it('has port', () => {
+      const port = versionsModule.v3.VersionsClient.port;
+      assert(port);
+      assert(typeof port === 'number');
     });
-    assert(client);
-  });
 
-  it('has initialize method and supports deferred initialization', async () => {
-    const client = new versionsModule.v3.VersionsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('should create a client with no option', () => {
+      const client = new versionsModule.v3.VersionsClient();
+      assert(client);
     });
-    assert.strictEqual(client.versionsStub, undefined);
-    await client.initialize();
-    assert(client.versionsStub);
-  });
 
-  it('has close method for the initialized client', done => {
-    const client = new versionsModule.v3.VersionsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('should create a client with gRPC fallback', () => {
+      const client = new versionsModule.v3.VersionsClient({
+        fallback: true,
+      });
+      assert(client);
     });
-    client.initialize();
-    assert(client.versionsStub);
-    client.close().then(() => {
-      done();
+
+    it('has initialize method and supports deferred initialization', async () => {
+      const client = new versionsModule.v3.VersionsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      assert.strictEqual(client.versionsStub, undefined);
+      await client.initialize();
+      assert(client.versionsStub);
     });
-  });
 
-  it('has close method for the non-initialized client', done => {
-    const client = new versionsModule.v3.VersionsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('has close method for the initialized client', done => {
+      const client = new versionsModule.v3.VersionsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      client.initialize();
+      assert(client.versionsStub);
+      client.close().then(() => {
+        done();
+      });
     });
-    assert.strictEqual(client.versionsStub, undefined);
-    client.close().then(() => {
-      done();
+
+    it('has close method for the non-initialized client', done => {
+      const client = new versionsModule.v3.VersionsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      assert.strictEqual(client.versionsStub, undefined);
+      client.close().then(() => {
+        done();
+      });
     });
-  });
 
-  it('has getProjectId method', async () => {
-    const fakeProjectId = 'fake-project-id';
-    const client = new versionsModule.v3.VersionsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('has getProjectId method', async () => {
+      const fakeProjectId = 'fake-project-id';
+      const client = new versionsModule.v3.VersionsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      client.auth.getProjectId = sinon.stub().resolves(fakeProjectId);
+      const result = await client.getProjectId();
+      assert.strictEqual(result, fakeProjectId);
+      assert((client.auth.getProjectId as SinonStub).calledWithExactly());
     });
-    client.auth.getProjectId = sinon.stub().resolves(fakeProjectId);
-    const result = await client.getProjectId();
-    assert.strictEqual(result, fakeProjectId);
-    assert((client.auth.getProjectId as SinonStub).calledWithExactly());
-  });
 
-  it('has getProjectId method with callback', async () => {
-    const fakeProjectId = 'fake-project-id';
-    const client = new versionsModule.v3.VersionsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
-    });
-    client.auth.getProjectId = sinon
-      .stub()
-      .callsArgWith(0, null, fakeProjectId);
-    const promise = new Promise((resolve, reject) => {
-      client.getProjectId((err?: Error | null, projectId?: string | null) => {
-        if (err) {
-          reject(err);
-        } else {
-          resolve(projectId);
-        }
+    it('has getProjectId method with callback', async () => {
+      const fakeProjectId = 'fake-project-id';
+      const client = new versionsModule.v3.VersionsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      client.auth.getProjectId = sinon
+        .stub()
+        .callsArgWith(0, null, fakeProjectId);
+      const promise = new Promise((resolve, reject) => {
+        client.getProjectId((err?: Error | null, projectId?: string | null) => {
+          if (err) {
+            reject(err);
+          } else {
+            resolve(projectId);
+          }
+        });
       });
+      const result = await promise;
+      assert.strictEqual(result, fakeProjectId);
     });
-    const result = await promise;
-    assert.strictEqual(result, fakeProjectId);
   });
 
   describe('getVersion', () => {
diff --git a/packages/google-cloud-dialogflow-cx/test/gapic_versions_v3beta1.ts b/packages/google-cloud-dialogflow-cx/test/gapic_versions_v3beta1.ts
index 44e08fd082e..bf158d22a1b 100644
--- a/packages/google-cloud-dialogflow-cx/test/gapic_versions_v3beta1.ts
+++ b/packages/google-cloud-dialogflow-cx/test/gapic_versions_v3beta1.ts
@@ -150,99 +150,101 @@ function stubAsyncIterationCall<ResponseType>(
 }
 
 describe('v3beta1.VersionsClient', () => {
-  it('has servicePath', () => {
-    const servicePath = versionsModule.v3beta1.VersionsClient.servicePath;
-    assert(servicePath);
-  });
-
-  it('has apiEndpoint', () => {
-    const apiEndpoint = versionsModule.v3beta1.VersionsClient.apiEndpoint;
-    assert(apiEndpoint);
-  });
-
-  it('has port', () => {
-    const port = versionsModule.v3beta1.VersionsClient.port;
-    assert(port);
-    assert(typeof port === 'number');
-  });
+  describe('Common methods', () => {
+    it('has servicePath', () => {
+      const servicePath = versionsModule.v3beta1.VersionsClient.servicePath;
+      assert(servicePath);
+    });
 
-  it('should create a client with no option', () => {
-    const client = new versionsModule.v3beta1.VersionsClient();
-    assert(client);
-  });
+    it('has apiEndpoint', () => {
+      const apiEndpoint = versionsModule.v3beta1.VersionsClient.apiEndpoint;
+      assert(apiEndpoint);
+    });
 
-  it('should create a client with gRPC fallback', () => {
-    const client = new versionsModule.v3beta1.VersionsClient({
-      fallback: true,
+    it('has port', () => {
+      const port = versionsModule.v3beta1.VersionsClient.port;
+      assert(port);
+      assert(typeof port === 'number');
     });
-    assert(client);
-  });
 
-  it('has initialize method and supports deferred initialization', async () => {
-    const client = new versionsModule.v3beta1.VersionsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('should create a client with no option', () => {
+      const client = new versionsModule.v3beta1.VersionsClient();
+      assert(client);
     });
-    assert.strictEqual(client.versionsStub, undefined);
-    await client.initialize();
-    assert(client.versionsStub);
-  });
 
-  it('has close method for the initialized client', done => {
-    const client = new versionsModule.v3beta1.VersionsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('should create a client with gRPC fallback', () => {
+      const client = new versionsModule.v3beta1.VersionsClient({
+        fallback: true,
+      });
+      assert(client);
     });
-    client.initialize();
-    assert(client.versionsStub);
-    client.close().then(() => {
-      done();
+
+    it('has initialize method and supports deferred initialization', async () => {
+      const client = new versionsModule.v3beta1.VersionsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      assert.strictEqual(client.versionsStub, undefined);
+      await client.initialize();
+      assert(client.versionsStub);
     });
-  });
 
-  it('has close method for the non-initialized client', done => {
-    const client = new versionsModule.v3beta1.VersionsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('has close method for the initialized client', done => {
+      const client = new versionsModule.v3beta1.VersionsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      client.initialize();
+      assert(client.versionsStub);
+      client.close().then(() => {
+        done();
+      });
     });
-    assert.strictEqual(client.versionsStub, undefined);
-    client.close().then(() => {
-      done();
+
+    it('has close method for the non-initialized client', done => {
+      const client = new versionsModule.v3beta1.VersionsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      assert.strictEqual(client.versionsStub, undefined);
+      client.close().then(() => {
+        done();
+      });
     });
-  });
 
-  it('has getProjectId method', async () => {
-    const fakeProjectId = 'fake-project-id';
-    const client = new versionsModule.v3beta1.VersionsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('has getProjectId method', async () => {
+      const fakeProjectId = 'fake-project-id';
+      const client = new versionsModule.v3beta1.VersionsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      client.auth.getProjectId = sinon.stub().resolves(fakeProjectId);
+      const result = await client.getProjectId();
+      assert.strictEqual(result, fakeProjectId);
+      assert((client.auth.getProjectId as SinonStub).calledWithExactly());
     });
-    client.auth.getProjectId = sinon.stub().resolves(fakeProjectId);
-    const result = await client.getProjectId();
-    assert.strictEqual(result, fakeProjectId);
-    assert((client.auth.getProjectId as SinonStub).calledWithExactly());
-  });
 
-  it('has getProjectId method with callback', async () => {
-    const fakeProjectId = 'fake-project-id';
-    const client = new versionsModule.v3beta1.VersionsClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
-    });
-    client.auth.getProjectId = sinon
-      .stub()
-      .callsArgWith(0, null, fakeProjectId);
-    const promise = new Promise((resolve, reject) => {
-      client.getProjectId((err?: Error | null, projectId?: string | null) => {
-        if (err) {
-          reject(err);
-        } else {
-          resolve(projectId);
-        }
+    it('has getProjectId method with callback', async () => {
+      const fakeProjectId = 'fake-project-id';
+      const client = new versionsModule.v3beta1.VersionsClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      client.auth.getProjectId = sinon
+        .stub()
+        .callsArgWith(0, null, fakeProjectId);
+      const promise = new Promise((resolve, reject) => {
+        client.getProjectId((err?: Error | null, projectId?: string | null) => {
+          if (err) {
+            reject(err);
+          } else {
+            resolve(projectId);
+          }
+        });
       });
+      const result = await promise;
+      assert.strictEqual(result, fakeProjectId);
     });
-    const result = await promise;
-    assert.strictEqual(result, fakeProjectId);
   });
 
   describe('getVersion', () => {
diff --git a/packages/google-cloud-dialogflow-cx/test/gapic_webhooks_v3.ts b/packages/google-cloud-dialogflow-cx/test/gapic_webhooks_v3.ts
index 60a183f0860..bfd99703ac7 100644
--- a/packages/google-cloud-dialogflow-cx/test/gapic_webhooks_v3.ts
+++ b/packages/google-cloud-dialogflow-cx/test/gapic_webhooks_v3.ts
@@ -25,12 +25,7 @@ import * as webhooksModule from '../src';
 
 import {PassThrough} from 'stream';
 
-import {
-  protobuf,
-  LROperation,
-  operationsProtos,
-  LocationProtos,
-} from 'google-gax';
+import {protobuf, operationsProtos, LocationProtos} from 'google-gax';
 
 function generateSampleMessage<T extends object>(instance: T) {
   const filledObject = (
@@ -118,99 +113,101 @@ function stubAsyncIterationCall<ResponseType>(
 }
 
 describe('v3.WebhooksClient', () => {
-  it('has servicePath', () => {
-    const servicePath = webhooksModule.v3.WebhooksClient.servicePath;
-    assert(servicePath);
-  });
-
-  it('has apiEndpoint', () => {
-    const apiEndpoint = webhooksModule.v3.WebhooksClient.apiEndpoint;
-    assert(apiEndpoint);
-  });
-
-  it('has port', () => {
-    const port = webhooksModule.v3.WebhooksClient.port;
-    assert(port);
-    assert(typeof port === 'number');
-  });
+  describe('Common methods', () => {
+    it('has servicePath', () => {
+      const servicePath = webhooksModule.v3.WebhooksClient.servicePath;
+      assert(servicePath);
+    });
 
-  it('should create a client with no option', () => {
-    const client = new webhooksModule.v3.WebhooksClient();
-    assert(client);
-  });
+    it('has apiEndpoint', () => {
+      const apiEndpoint = webhooksModule.v3.WebhooksClient.apiEndpoint;
+      assert(apiEndpoint);
+    });
 
-  it('should create a client with gRPC fallback', () => {
-    const client = new webhooksModule.v3.WebhooksClient({
-      fallback: true,
+    it('has port', () => {
+      const port = webhooksModule.v3.WebhooksClient.port;
+      assert(port);
+      assert(typeof port === 'number');
     });
-    assert(client);
-  });
 
-  it('has initialize method and supports deferred initialization', async () => {
-    const client = new webhooksModule.v3.WebhooksClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('should create a client with no option', () => {
+      const client = new webhooksModule.v3.WebhooksClient();
+      assert(client);
     });
-    assert.strictEqual(client.webhooksStub, undefined);
-    await client.initialize();
-    assert(client.webhooksStub);
-  });
 
-  it('has close method for the initialized client', done => {
-    const client = new webhooksModule.v3.WebhooksClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('should create a client with gRPC fallback', () => {
+      const client = new webhooksModule.v3.WebhooksClient({
+        fallback: true,
+      });
+      assert(client);
     });
-    client.initialize();
-    assert(client.webhooksStub);
-    client.close().then(() => {
-      done();
+
+    it('has initialize method and supports deferred initialization', async () => {
+      const client = new webhooksModule.v3.WebhooksClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      assert.strictEqual(client.webhooksStub, undefined);
+      await client.initialize();
+      assert(client.webhooksStub);
     });
-  });
 
-  it('has close method for the non-initialized client', done => {
-    const client = new webhooksModule.v3.WebhooksClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('has close method for the initialized client', done => {
+      const client = new webhooksModule.v3.WebhooksClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      client.initialize();
+      assert(client.webhooksStub);
+      client.close().then(() => {
+        done();
+      });
     });
-    assert.strictEqual(client.webhooksStub, undefined);
-    client.close().then(() => {
-      done();
+
+    it('has close method for the non-initialized client', done => {
+      const client = new webhooksModule.v3.WebhooksClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      assert.strictEqual(client.webhooksStub, undefined);
+      client.close().then(() => {
+        done();
+      });
     });
-  });
 
-  it('has getProjectId method', async () => {
-    const fakeProjectId = 'fake-project-id';
-    const client = new webhooksModule.v3.WebhooksClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('has getProjectId method', async () => {
+      const fakeProjectId = 'fake-project-id';
+      const client = new webhooksModule.v3.WebhooksClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      client.auth.getProjectId = sinon.stub().resolves(fakeProjectId);
+      const result = await client.getProjectId();
+      assert.strictEqual(result, fakeProjectId);
+      assert((client.auth.getProjectId as SinonStub).calledWithExactly());
     });
-    client.auth.getProjectId = sinon.stub().resolves(fakeProjectId);
-    const result = await client.getProjectId();
-    assert.strictEqual(result, fakeProjectId);
-    assert((client.auth.getProjectId as SinonStub).calledWithExactly());
-  });
 
-  it('has getProjectId method with callback', async () => {
-    const fakeProjectId = 'fake-project-id';
-    const client = new webhooksModule.v3.WebhooksClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
-    });
-    client.auth.getProjectId = sinon
-      .stub()
-      .callsArgWith(0, null, fakeProjectId);
-    const promise = new Promise((resolve, reject) => {
-      client.getProjectId((err?: Error | null, projectId?: string | null) => {
-        if (err) {
-          reject(err);
-        } else {
-          resolve(projectId);
-        }
+    it('has getProjectId method with callback', async () => {
+      const fakeProjectId = 'fake-project-id';
+      const client = new webhooksModule.v3.WebhooksClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      client.auth.getProjectId = sinon
+        .stub()
+        .callsArgWith(0, null, fakeProjectId);
+      const promise = new Promise((resolve, reject) => {
+        client.getProjectId((err?: Error | null, projectId?: string | null) => {
+          if (err) {
+            reject(err);
+          } else {
+            resolve(projectId);
+          }
+        });
       });
+      const result = await promise;
+      assert.strictEqual(result, fakeProjectId);
     });
-    const result = await promise;
-    assert.strictEqual(result, fakeProjectId);
   });
 
   describe('getWebhook', () => {
diff --git a/packages/google-cloud-dialogflow-cx/test/gapic_webhooks_v3beta1.ts b/packages/google-cloud-dialogflow-cx/test/gapic_webhooks_v3beta1.ts
index abb21157c1f..e9d1f7a17ba 100644
--- a/packages/google-cloud-dialogflow-cx/test/gapic_webhooks_v3beta1.ts
+++ b/packages/google-cloud-dialogflow-cx/test/gapic_webhooks_v3beta1.ts
@@ -25,12 +25,7 @@ import * as webhooksModule from '../src';
 
 import {PassThrough} from 'stream';
 
-import {
-  protobuf,
-  LROperation,
-  operationsProtos,
-  LocationProtos,
-} from 'google-gax';
+import {protobuf, operationsProtos, LocationProtos} from 'google-gax';
 
 function generateSampleMessage<T extends object>(instance: T) {
   const filledObject = (
@@ -118,99 +113,101 @@ function stubAsyncIterationCall<ResponseType>(
 }
 
 describe('v3beta1.WebhooksClient', () => {
-  it('has servicePath', () => {
-    const servicePath = webhooksModule.v3beta1.WebhooksClient.servicePath;
-    assert(servicePath);
-  });
-
-  it('has apiEndpoint', () => {
-    const apiEndpoint = webhooksModule.v3beta1.WebhooksClient.apiEndpoint;
-    assert(apiEndpoint);
-  });
-
-  it('has port', () => {
-    const port = webhooksModule.v3beta1.WebhooksClient.port;
-    assert(port);
-    assert(typeof port === 'number');
-  });
+  describe('Common methods', () => {
+    it('has servicePath', () => {
+      const servicePath = webhooksModule.v3beta1.WebhooksClient.servicePath;
+      assert(servicePath);
+    });
 
-  it('should create a client with no option', () => {
-    const client = new webhooksModule.v3beta1.WebhooksClient();
-    assert(client);
-  });
+    it('has apiEndpoint', () => {
+      const apiEndpoint = webhooksModule.v3beta1.WebhooksClient.apiEndpoint;
+      assert(apiEndpoint);
+    });
 
-  it('should create a client with gRPC fallback', () => {
-    const client = new webhooksModule.v3beta1.WebhooksClient({
-      fallback: true,
+    it('has port', () => {
+      const port = webhooksModule.v3beta1.WebhooksClient.port;
+      assert(port);
+      assert(typeof port === 'number');
     });
-    assert(client);
-  });
 
-  it('has initialize method and supports deferred initialization', async () => {
-    const client = new webhooksModule.v3beta1.WebhooksClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('should create a client with no option', () => {
+      const client = new webhooksModule.v3beta1.WebhooksClient();
+      assert(client);
     });
-    assert.strictEqual(client.webhooksStub, undefined);
-    await client.initialize();
-    assert(client.webhooksStub);
-  });
 
-  it('has close method for the initialized client', done => {
-    const client = new webhooksModule.v3beta1.WebhooksClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('should create a client with gRPC fallback', () => {
+      const client = new webhooksModule.v3beta1.WebhooksClient({
+        fallback: true,
+      });
+      assert(client);
     });
-    client.initialize();
-    assert(client.webhooksStub);
-    client.close().then(() => {
-      done();
+
+    it('has initialize method and supports deferred initialization', async () => {
+      const client = new webhooksModule.v3beta1.WebhooksClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      assert.strictEqual(client.webhooksStub, undefined);
+      await client.initialize();
+      assert(client.webhooksStub);
     });
-  });
 
-  it('has close method for the non-initialized client', done => {
-    const client = new webhooksModule.v3beta1.WebhooksClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('has close method for the initialized client', done => {
+      const client = new webhooksModule.v3beta1.WebhooksClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      client.initialize();
+      assert(client.webhooksStub);
+      client.close().then(() => {
+        done();
+      });
     });
-    assert.strictEqual(client.webhooksStub, undefined);
-    client.close().then(() => {
-      done();
+
+    it('has close method for the non-initialized client', done => {
+      const client = new webhooksModule.v3beta1.WebhooksClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      assert.strictEqual(client.webhooksStub, undefined);
+      client.close().then(() => {
+        done();
+      });
     });
-  });
 
-  it('has getProjectId method', async () => {
-    const fakeProjectId = 'fake-project-id';
-    const client = new webhooksModule.v3beta1.WebhooksClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('has getProjectId method', async () => {
+      const fakeProjectId = 'fake-project-id';
+      const client = new webhooksModule.v3beta1.WebhooksClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      client.auth.getProjectId = sinon.stub().resolves(fakeProjectId);
+      const result = await client.getProjectId();
+      assert.strictEqual(result, fakeProjectId);
+      assert((client.auth.getProjectId as SinonStub).calledWithExactly());
     });
-    client.auth.getProjectId = sinon.stub().resolves(fakeProjectId);
-    const result = await client.getProjectId();
-    assert.strictEqual(result, fakeProjectId);
-    assert((client.auth.getProjectId as SinonStub).calledWithExactly());
-  });
 
-  it('has getProjectId method with callback', async () => {
-    const fakeProjectId = 'fake-project-id';
-    const client = new webhooksModule.v3beta1.WebhooksClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
-    });
-    client.auth.getProjectId = sinon
-      .stub()
-      .callsArgWith(0, null, fakeProjectId);
-    const promise = new Promise((resolve, reject) => {
-      client.getProjectId((err?: Error | null, projectId?: string | null) => {
-        if (err) {
-          reject(err);
-        } else {
-          resolve(projectId);
-        }
+    it('has getProjectId method with callback', async () => {
+      const fakeProjectId = 'fake-project-id';
+      const client = new webhooksModule.v3beta1.WebhooksClient({
+        credentials: {client_email: 'bogus', private_key: 'bogus'},
+        projectId: 'bogus',
+      });
+      client.auth.getProjectId = sinon
+        .stub()
+        .callsArgWith(0, null, fakeProjectId);
+      const promise = new Promise((resolve, reject) => {
+        client.getProjectId((err?: Error | null, projectId?: string | null) => {
+          if (err) {
+            reject(err);
+          } else {
+            resolve(projectId);
+          }
+        });
       });
+      const result = await promise;
+      assert.strictEqual(result, fakeProjectId);
     });
-    const result = await promise;
-    assert.strictEqual(result, fakeProjectId);
   });
 
   describe('getWebhook', () => {