diff --git a/java-video-stitcher/google-cloud-video-stitcher/src/main/java/com/google/cloud/video/stitcher/v1/VideoStitcherServiceClient.java b/java-video-stitcher/google-cloud-video-stitcher/src/main/java/com/google/cloud/video/stitcher/v1/VideoStitcherServiceClient.java
index 8971de5ff1c9..01c2a1afa68f 100644
--- a/java-video-stitcher/google-cloud-video-stitcher/src/main/java/com/google/cloud/video/stitcher/v1/VideoStitcherServiceClient.java
+++ b/java-video-stitcher/google-cloud-video-stitcher/src/main/java/com/google/cloud/video/stitcher/v1/VideoStitcherServiceClient.java
@@ -45,8 +45,11 @@
  * calls that map to API methods. Sample code to get started:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // 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.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (VideoStitcherServiceClient videoStitcherServiceClient =
  *     VideoStitcherServiceClient.create()) {
  *   LocationName parent = LocationName.of("[PROJECT]", "[LOCATION]");
@@ -86,8 +89,11 @@
  * <p>To customize credentials:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // 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.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * VideoStitcherServiceSettings videoStitcherServiceSettings =
  *     VideoStitcherServiceSettings.newBuilder()
  *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
@@ -99,8 +105,11 @@
  * <p>To customize the endpoint:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // 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.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * VideoStitcherServiceSettings videoStitcherServiceSettings =
  *     VideoStitcherServiceSettings.newBuilder().setEndpoint(myEndpoint).build();
  * VideoStitcherServiceClient videoStitcherServiceClient =
@@ -166,8 +175,11 @@ public VideoStitcherServiceStub getStub() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // 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.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VideoStitcherServiceClient videoStitcherServiceClient =
    *     VideoStitcherServiceClient.create()) {
    *   LocationName parent = LocationName.of("[PROJECT]", "[LOCATION]");
@@ -204,8 +216,11 @@ public final CdnKey createCdnKey(LocationName parent, CdnKey cdnKey, String cdnK
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // 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.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VideoStitcherServiceClient videoStitcherServiceClient =
    *     VideoStitcherServiceClient.create()) {
    *   String parent = LocationName.of("[PROJECT]", "[LOCATION]").toString();
@@ -242,8 +257,11 @@ public final CdnKey createCdnKey(String parent, CdnKey cdnKey, String cdnKeyId)
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // 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.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VideoStitcherServiceClient videoStitcherServiceClient =
    *     VideoStitcherServiceClient.create()) {
    *   CreateCdnKeyRequest request =
@@ -270,8 +288,11 @@ public final CdnKey createCdnKey(CreateCdnKeyRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // 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.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VideoStitcherServiceClient videoStitcherServiceClient =
    *     VideoStitcherServiceClient.create()) {
    *   CreateCdnKeyRequest request =
@@ -298,8 +319,11 @@ public final UnaryCallable<CreateCdnKeyRequest, CdnKey> createCdnKeyCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // 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.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VideoStitcherServiceClient videoStitcherServiceClient =
    *     VideoStitcherServiceClient.create()) {
    *   LocationName parent = LocationName.of("[PROJECT]", "[LOCATION]");
@@ -328,8 +352,11 @@ public final ListCdnKeysPagedResponse listCdnKeys(LocationName parent) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // 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.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VideoStitcherServiceClient videoStitcherServiceClient =
    *     VideoStitcherServiceClient.create()) {
    *   String parent = LocationName.of("[PROJECT]", "[LOCATION]").toString();
@@ -355,8 +382,11 @@ public final ListCdnKeysPagedResponse listCdnKeys(String parent) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // 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.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VideoStitcherServiceClient videoStitcherServiceClient =
    *     VideoStitcherServiceClient.create()) {
    *   ListCdnKeysRequest request =
@@ -387,8 +417,11 @@ public final ListCdnKeysPagedResponse listCdnKeys(ListCdnKeysRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // 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.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VideoStitcherServiceClient videoStitcherServiceClient =
    *     VideoStitcherServiceClient.create()) {
    *   ListCdnKeysRequest request =
@@ -420,8 +453,11 @@ public final ListCdnKeysPagedResponse listCdnKeys(ListCdnKeysRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // 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.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VideoStitcherServiceClient videoStitcherServiceClient =
    *     VideoStitcherServiceClient.create()) {
    *   ListCdnKeysRequest request =
@@ -459,8 +495,11 @@ public final UnaryCallable<ListCdnKeysRequest, ListCdnKeysResponse> listCdnKeysC
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // 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.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VideoStitcherServiceClient videoStitcherServiceClient =
    *     VideoStitcherServiceClient.create()) {
    *   CdnKeyName name = CdnKeyName.of("[PROJECT]", "[LOCATION]", "[CDN_KEY]");
@@ -485,8 +524,11 @@ public final CdnKey getCdnKey(CdnKeyName name) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // 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.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VideoStitcherServiceClient videoStitcherServiceClient =
    *     VideoStitcherServiceClient.create()) {
    *   String name = CdnKeyName.of("[PROJECT]", "[LOCATION]", "[CDN_KEY]").toString();
@@ -510,8 +552,11 @@ public final CdnKey getCdnKey(String name) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // 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.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VideoStitcherServiceClient videoStitcherServiceClient =
    *     VideoStitcherServiceClient.create()) {
    *   GetCdnKeyRequest request =
@@ -536,8 +581,11 @@ public final CdnKey getCdnKey(GetCdnKeyRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // 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.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VideoStitcherServiceClient videoStitcherServiceClient =
    *     VideoStitcherServiceClient.create()) {
    *   GetCdnKeyRequest request =
@@ -561,8 +609,11 @@ public final UnaryCallable<GetCdnKeyRequest, CdnKey> getCdnKeyCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // 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.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VideoStitcherServiceClient videoStitcherServiceClient =
    *     VideoStitcherServiceClient.create()) {
    *   CdnKeyName name = CdnKeyName.of("[PROJECT]", "[LOCATION]", "[CDN_KEY]");
@@ -587,8 +638,11 @@ public final void deleteCdnKey(CdnKeyName name) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // 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.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VideoStitcherServiceClient videoStitcherServiceClient =
    *     VideoStitcherServiceClient.create()) {
    *   String name = CdnKeyName.of("[PROJECT]", "[LOCATION]", "[CDN_KEY]").toString();
@@ -612,8 +666,11 @@ public final void deleteCdnKey(String name) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // 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.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VideoStitcherServiceClient videoStitcherServiceClient =
    *     VideoStitcherServiceClient.create()) {
    *   DeleteCdnKeyRequest request =
@@ -638,8 +695,11 @@ public final void deleteCdnKey(DeleteCdnKeyRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // 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.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VideoStitcherServiceClient videoStitcherServiceClient =
    *     VideoStitcherServiceClient.create()) {
    *   DeleteCdnKeyRequest request =
@@ -664,8 +724,11 @@ public final UnaryCallable<DeleteCdnKeyRequest, Empty> deleteCdnKeyCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // 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.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VideoStitcherServiceClient videoStitcherServiceClient =
    *     VideoStitcherServiceClient.create()) {
    *   CdnKey cdnKey = CdnKey.newBuilder().build();
@@ -693,8 +756,11 @@ public final CdnKey updateCdnKey(CdnKey cdnKey, FieldMask updateMask) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // 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.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VideoStitcherServiceClient videoStitcherServiceClient =
    *     VideoStitcherServiceClient.create()) {
    *   UpdateCdnKeyRequest request =
@@ -720,8 +786,11 @@ public final CdnKey updateCdnKey(UpdateCdnKeyRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // 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.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VideoStitcherServiceClient videoStitcherServiceClient =
    *     VideoStitcherServiceClient.create()) {
    *   UpdateCdnKeyRequest request =
@@ -748,8 +817,11 @@ public final UnaryCallable<UpdateCdnKeyRequest, CdnKey> updateCdnKeyCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // 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.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VideoStitcherServiceClient videoStitcherServiceClient =
    *     VideoStitcherServiceClient.create()) {
    *   LocationName parent = LocationName.of("[PROJECT]", "[LOCATION]");
@@ -780,8 +852,11 @@ public final VodSession createVodSession(LocationName parent, VodSession vodSess
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // 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.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VideoStitcherServiceClient videoStitcherServiceClient =
    *     VideoStitcherServiceClient.create()) {
    *   String parent = LocationName.of("[PROJECT]", "[LOCATION]").toString();
@@ -809,8 +884,11 @@ public final VodSession createVodSession(String parent, VodSession vodSession) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // 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.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VideoStitcherServiceClient videoStitcherServiceClient =
    *     VideoStitcherServiceClient.create()) {
    *   CreateVodSessionRequest request =
@@ -837,8 +915,11 @@ public final VodSession createVodSession(CreateVodSessionRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // 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.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VideoStitcherServiceClient videoStitcherServiceClient =
    *     VideoStitcherServiceClient.create()) {
    *   CreateVodSessionRequest request =
@@ -865,8 +946,11 @@ public final UnaryCallable<CreateVodSessionRequest, VodSession> createVodSession
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // 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.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VideoStitcherServiceClient videoStitcherServiceClient =
    *     VideoStitcherServiceClient.create()) {
    *   VodSessionName name = VodSessionName.of("[PROJECT]", "[LOCATION]", "[VOD_SESSION]");
@@ -892,8 +976,11 @@ public final VodSession getVodSession(VodSessionName name) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // 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.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VideoStitcherServiceClient videoStitcherServiceClient =
    *     VideoStitcherServiceClient.create()) {
    *   String name = VodSessionName.of("[PROJECT]", "[LOCATION]", "[VOD_SESSION]").toString();
@@ -918,8 +1005,11 @@ public final VodSession getVodSession(String name) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // 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.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VideoStitcherServiceClient videoStitcherServiceClient =
    *     VideoStitcherServiceClient.create()) {
    *   GetVodSessionRequest request =
@@ -945,8 +1035,11 @@ public final VodSession getVodSession(GetVodSessionRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // 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.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VideoStitcherServiceClient videoStitcherServiceClient =
    *     VideoStitcherServiceClient.create()) {
    *   GetVodSessionRequest request =
@@ -971,8 +1064,11 @@ public final UnaryCallable<GetVodSessionRequest, VodSession> getVodSessionCallab
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // 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.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VideoStitcherServiceClient videoStitcherServiceClient =
    *     VideoStitcherServiceClient.create()) {
    *   VodSessionName parent = VodSessionName.of("[PROJECT]", "[LOCATION]", "[VOD_SESSION]");
@@ -1002,8 +1098,11 @@ public final ListVodStitchDetailsPagedResponse listVodStitchDetails(VodSessionNa
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // 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.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VideoStitcherServiceClient videoStitcherServiceClient =
    *     VideoStitcherServiceClient.create()) {
    *   String parent = VodSessionName.of("[PROJECT]", "[LOCATION]", "[VOD_SESSION]").toString();
@@ -1031,8 +1130,11 @@ public final ListVodStitchDetailsPagedResponse listVodStitchDetails(String paren
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // 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.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VideoStitcherServiceClient videoStitcherServiceClient =
    *     VideoStitcherServiceClient.create()) {
    *   ListVodStitchDetailsRequest request =
@@ -1063,8 +1165,11 @@ public final ListVodStitchDetailsPagedResponse listVodStitchDetails(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // 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.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VideoStitcherServiceClient videoStitcherServiceClient =
    *     VideoStitcherServiceClient.create()) {
    *   ListVodStitchDetailsRequest request =
@@ -1094,8 +1199,11 @@ public final ListVodStitchDetailsPagedResponse listVodStitchDetails(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // 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.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VideoStitcherServiceClient videoStitcherServiceClient =
    *     VideoStitcherServiceClient.create()) {
    *   ListVodStitchDetailsRequest request =
@@ -1132,8 +1240,11 @@ public final ListVodStitchDetailsPagedResponse listVodStitchDetails(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // 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.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VideoStitcherServiceClient videoStitcherServiceClient =
    *     VideoStitcherServiceClient.create()) {
    *   VodStitchDetailName name =
@@ -1162,8 +1273,11 @@ public final VodStitchDetail getVodStitchDetail(VodStitchDetailName name) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // 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.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VideoStitcherServiceClient videoStitcherServiceClient =
    *     VideoStitcherServiceClient.create()) {
    *   String name =
@@ -1191,8 +1305,11 @@ public final VodStitchDetail getVodStitchDetail(String name) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // 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.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VideoStitcherServiceClient videoStitcherServiceClient =
    *     VideoStitcherServiceClient.create()) {
    *   GetVodStitchDetailRequest request =
@@ -1220,8 +1337,11 @@ public final VodStitchDetail getVodStitchDetail(GetVodStitchDetailRequest reques
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // 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.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VideoStitcherServiceClient videoStitcherServiceClient =
    *     VideoStitcherServiceClient.create()) {
    *   GetVodStitchDetailRequest request =
@@ -1250,8 +1370,11 @@ public final VodStitchDetail getVodStitchDetail(GetVodStitchDetailRequest reques
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // 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.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VideoStitcherServiceClient videoStitcherServiceClient =
    *     VideoStitcherServiceClient.create()) {
    *   VodSessionName parent = VodSessionName.of("[PROJECT]", "[LOCATION]", "[VOD_SESSION]");
@@ -1281,8 +1404,11 @@ public final ListVodAdTagDetailsPagedResponse listVodAdTagDetails(VodSessionName
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // 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.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VideoStitcherServiceClient videoStitcherServiceClient =
    *     VideoStitcherServiceClient.create()) {
    *   String parent = VodSessionName.of("[PROJECT]", "[LOCATION]", "[VOD_SESSION]").toString();
@@ -1310,8 +1436,11 @@ public final ListVodAdTagDetailsPagedResponse listVodAdTagDetails(String parent)
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // 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.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VideoStitcherServiceClient videoStitcherServiceClient =
    *     VideoStitcherServiceClient.create()) {
    *   ListVodAdTagDetailsRequest request =
@@ -1342,8 +1471,11 @@ public final ListVodAdTagDetailsPagedResponse listVodAdTagDetails(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // 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.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VideoStitcherServiceClient videoStitcherServiceClient =
    *     VideoStitcherServiceClient.create()) {
    *   ListVodAdTagDetailsRequest request =
@@ -1373,8 +1505,11 @@ public final ListVodAdTagDetailsPagedResponse listVodAdTagDetails(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // 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.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VideoStitcherServiceClient videoStitcherServiceClient =
    *     VideoStitcherServiceClient.create()) {
    *   ListVodAdTagDetailsRequest request =
@@ -1411,8 +1546,11 @@ public final ListVodAdTagDetailsPagedResponse listVodAdTagDetails(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // 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.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VideoStitcherServiceClient videoStitcherServiceClient =
    *     VideoStitcherServiceClient.create()) {
    *   VodAdTagDetailName name =
@@ -1441,8 +1579,11 @@ public final VodAdTagDetail getVodAdTagDetail(VodAdTagDetailName name) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // 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.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VideoStitcherServiceClient videoStitcherServiceClient =
    *     VideoStitcherServiceClient.create()) {
    *   String name =
@@ -1469,8 +1610,11 @@ public final VodAdTagDetail getVodAdTagDetail(String name) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // 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.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VideoStitcherServiceClient videoStitcherServiceClient =
    *     VideoStitcherServiceClient.create()) {
    *   GetVodAdTagDetailRequest request =
@@ -1498,8 +1642,11 @@ public final VodAdTagDetail getVodAdTagDetail(GetVodAdTagDetailRequest request)
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // 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.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VideoStitcherServiceClient videoStitcherServiceClient =
    *     VideoStitcherServiceClient.create()) {
    *   GetVodAdTagDetailRequest request =
@@ -1527,8 +1674,11 @@ public final UnaryCallable<GetVodAdTagDetailRequest, VodAdTagDetail> getVodAdTag
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // 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.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VideoStitcherServiceClient videoStitcherServiceClient =
    *     VideoStitcherServiceClient.create()) {
    *   LiveSessionName parent = LiveSessionName.of("[PROJECT]", "[LOCATION]", "[LIVE_SESSION]");
@@ -1558,8 +1708,11 @@ public final ListLiveAdTagDetailsPagedResponse listLiveAdTagDetails(LiveSessionN
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // 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.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VideoStitcherServiceClient videoStitcherServiceClient =
    *     VideoStitcherServiceClient.create()) {
    *   String parent = LiveSessionName.of("[PROJECT]", "[LOCATION]", "[LIVE_SESSION]").toString();
@@ -1587,8 +1740,11 @@ public final ListLiveAdTagDetailsPagedResponse listLiveAdTagDetails(String paren
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // 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.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VideoStitcherServiceClient videoStitcherServiceClient =
    *     VideoStitcherServiceClient.create()) {
    *   ListLiveAdTagDetailsRequest request =
@@ -1619,8 +1775,11 @@ public final ListLiveAdTagDetailsPagedResponse listLiveAdTagDetails(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // 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.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VideoStitcherServiceClient videoStitcherServiceClient =
    *     VideoStitcherServiceClient.create()) {
    *   ListLiveAdTagDetailsRequest request =
@@ -1650,8 +1809,11 @@ public final ListLiveAdTagDetailsPagedResponse listLiveAdTagDetails(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // 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.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VideoStitcherServiceClient videoStitcherServiceClient =
    *     VideoStitcherServiceClient.create()) {
    *   ListLiveAdTagDetailsRequest request =
@@ -1688,8 +1850,11 @@ public final ListLiveAdTagDetailsPagedResponse listLiveAdTagDetails(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // 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.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VideoStitcherServiceClient videoStitcherServiceClient =
    *     VideoStitcherServiceClient.create()) {
    *   LiveAdTagDetailName name =
@@ -1718,8 +1883,11 @@ public final LiveAdTagDetail getLiveAdTagDetail(LiveAdTagDetailName name) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // 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.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VideoStitcherServiceClient videoStitcherServiceClient =
    *     VideoStitcherServiceClient.create()) {
    *   String name =
@@ -1747,8 +1915,11 @@ public final LiveAdTagDetail getLiveAdTagDetail(String name) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // 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.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VideoStitcherServiceClient videoStitcherServiceClient =
    *     VideoStitcherServiceClient.create()) {
    *   GetLiveAdTagDetailRequest request =
@@ -1776,8 +1947,11 @@ public final LiveAdTagDetail getLiveAdTagDetail(GetLiveAdTagDetailRequest reques
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // 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.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VideoStitcherServiceClient videoStitcherServiceClient =
    *     VideoStitcherServiceClient.create()) {
    *   GetLiveAdTagDetailRequest request =
@@ -1806,8 +1980,11 @@ public final LiveAdTagDetail getLiveAdTagDetail(GetLiveAdTagDetailRequest reques
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // 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.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VideoStitcherServiceClient videoStitcherServiceClient =
    *     VideoStitcherServiceClient.create()) {
    *   LocationName parent = LocationName.of("[PROJECT]", "[LOCATION]");
@@ -1842,8 +2019,11 @@ public final Slate createSlate(LocationName parent, Slate slate, String slateId)
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // 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.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VideoStitcherServiceClient videoStitcherServiceClient =
    *     VideoStitcherServiceClient.create()) {
    *   String parent = LocationName.of("[PROJECT]", "[LOCATION]").toString();
@@ -1878,8 +2058,11 @@ public final Slate createSlate(String parent, Slate slate, String slateId) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // 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.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VideoStitcherServiceClient videoStitcherServiceClient =
    *     VideoStitcherServiceClient.create()) {
    *   CreateSlateRequest request =
@@ -1906,8 +2089,11 @@ public final Slate createSlate(CreateSlateRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // 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.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VideoStitcherServiceClient videoStitcherServiceClient =
    *     VideoStitcherServiceClient.create()) {
    *   CreateSlateRequest request =
@@ -1934,8 +2120,11 @@ public final UnaryCallable<CreateSlateRequest, Slate> createSlateCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // 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.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VideoStitcherServiceClient videoStitcherServiceClient =
    *     VideoStitcherServiceClient.create()) {
    *   LocationName parent = LocationName.of("[PROJECT]", "[LOCATION]");
@@ -1961,8 +2150,11 @@ public final ListSlatesPagedResponse listSlates(LocationName parent) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // 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.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VideoStitcherServiceClient videoStitcherServiceClient =
    *     VideoStitcherServiceClient.create()) {
    *   String parent = LocationName.of("[PROJECT]", "[LOCATION]").toString();
@@ -1987,8 +2179,11 @@ public final ListSlatesPagedResponse listSlates(String parent) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // 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.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VideoStitcherServiceClient videoStitcherServiceClient =
    *     VideoStitcherServiceClient.create()) {
    *   ListSlatesRequest request =
@@ -2019,8 +2214,11 @@ public final ListSlatesPagedResponse listSlates(ListSlatesRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // 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.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VideoStitcherServiceClient videoStitcherServiceClient =
    *     VideoStitcherServiceClient.create()) {
    *   ListSlatesRequest request =
@@ -2051,8 +2249,11 @@ public final UnaryCallable<ListSlatesRequest, ListSlatesPagedResponse> listSlate
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // 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.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VideoStitcherServiceClient videoStitcherServiceClient =
    *     VideoStitcherServiceClient.create()) {
    *   ListSlatesRequest request =
@@ -2089,8 +2290,11 @@ public final UnaryCallable<ListSlatesRequest, ListSlatesResponse> listSlatesCall
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // 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.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VideoStitcherServiceClient videoStitcherServiceClient =
    *     VideoStitcherServiceClient.create()) {
    *   SlateName name = SlateName.of("[PROJECT]", "[LOCATION]", "[SLATE]");
@@ -2115,8 +2319,11 @@ public final Slate getSlate(SlateName name) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // 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.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VideoStitcherServiceClient videoStitcherServiceClient =
    *     VideoStitcherServiceClient.create()) {
    *   String name = SlateName.of("[PROJECT]", "[LOCATION]", "[SLATE]").toString();
@@ -2140,8 +2347,11 @@ public final Slate getSlate(String name) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // 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.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VideoStitcherServiceClient videoStitcherServiceClient =
    *     VideoStitcherServiceClient.create()) {
    *   GetSlateRequest request =
@@ -2166,8 +2376,11 @@ public final Slate getSlate(GetSlateRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // 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.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VideoStitcherServiceClient videoStitcherServiceClient =
    *     VideoStitcherServiceClient.create()) {
    *   GetSlateRequest request =
@@ -2191,8 +2404,11 @@ public final UnaryCallable<GetSlateRequest, Slate> getSlateCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // 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.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VideoStitcherServiceClient videoStitcherServiceClient =
    *     VideoStitcherServiceClient.create()) {
    *   Slate slate = Slate.newBuilder().build();
@@ -2218,8 +2434,11 @@ public final Slate updateSlate(Slate slate, FieldMask updateMask) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // 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.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VideoStitcherServiceClient videoStitcherServiceClient =
    *     VideoStitcherServiceClient.create()) {
    *   UpdateSlateRequest request =
@@ -2245,8 +2464,11 @@ public final Slate updateSlate(UpdateSlateRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // 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.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VideoStitcherServiceClient videoStitcherServiceClient =
    *     VideoStitcherServiceClient.create()) {
    *   UpdateSlateRequest request =
@@ -2272,8 +2494,11 @@ public final UnaryCallable<UpdateSlateRequest, Slate> updateSlateCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // 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.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VideoStitcherServiceClient videoStitcherServiceClient =
    *     VideoStitcherServiceClient.create()) {
    *   SlateName name = SlateName.of("[PROJECT]", "[LOCATION]", "[SLATE]");
@@ -2298,8 +2523,11 @@ public final void deleteSlate(SlateName name) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // 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.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VideoStitcherServiceClient videoStitcherServiceClient =
    *     VideoStitcherServiceClient.create()) {
    *   String name = SlateName.of("[PROJECT]", "[LOCATION]", "[SLATE]").toString();
@@ -2323,8 +2551,11 @@ public final void deleteSlate(String name) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // 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.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VideoStitcherServiceClient videoStitcherServiceClient =
    *     VideoStitcherServiceClient.create()) {
    *   DeleteSlateRequest request =
@@ -2349,8 +2580,11 @@ public final void deleteSlate(DeleteSlateRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // 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.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VideoStitcherServiceClient videoStitcherServiceClient =
    *     VideoStitcherServiceClient.create()) {
    *   DeleteSlateRequest request =
@@ -2375,8 +2609,11 @@ public final UnaryCallable<DeleteSlateRequest, Empty> deleteSlateCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // 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.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VideoStitcherServiceClient videoStitcherServiceClient =
    *     VideoStitcherServiceClient.create()) {
    *   LiveSessionName parent = LiveSessionName.of("[PROJECT]", "[LOCATION]", "[LIVE_SESSION]");
@@ -2406,8 +2643,11 @@ public final LiveSession createLiveSession(LiveSessionName parent, LiveSession l
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // 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.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VideoStitcherServiceClient videoStitcherServiceClient =
    *     VideoStitcherServiceClient.create()) {
    *   String parent = LiveSessionName.of("[PROJECT]", "[LOCATION]", "[LIVE_SESSION]").toString();
@@ -2434,8 +2674,11 @@ public final LiveSession createLiveSession(String parent, LiveSession liveSessio
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // 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.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VideoStitcherServiceClient videoStitcherServiceClient =
    *     VideoStitcherServiceClient.create()) {
    *   CreateLiveSessionRequest request =
@@ -2461,8 +2704,11 @@ public final LiveSession createLiveSession(CreateLiveSessionRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // 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.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VideoStitcherServiceClient videoStitcherServiceClient =
    *     VideoStitcherServiceClient.create()) {
    *   CreateLiveSessionRequest request =
@@ -2488,8 +2734,11 @@ public final UnaryCallable<CreateLiveSessionRequest, LiveSession> createLiveSess
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // 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.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VideoStitcherServiceClient videoStitcherServiceClient =
    *     VideoStitcherServiceClient.create()) {
    *   LiveSessionName name = LiveSessionName.of("[PROJECT]", "[LOCATION]", "[LIVE_SESSION]");
@@ -2514,8 +2763,11 @@ public final LiveSession getLiveSession(LiveSessionName name) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // 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.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VideoStitcherServiceClient videoStitcherServiceClient =
    *     VideoStitcherServiceClient.create()) {
    *   String name = LiveSessionName.of("[PROJECT]", "[LOCATION]", "[LIVE_SESSION]").toString();
@@ -2539,8 +2791,11 @@ public final LiveSession getLiveSession(String name) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // 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.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VideoStitcherServiceClient videoStitcherServiceClient =
    *     VideoStitcherServiceClient.create()) {
    *   GetLiveSessionRequest request =
@@ -2565,8 +2820,11 @@ public final LiveSession getLiveSession(GetLiveSessionRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // 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.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VideoStitcherServiceClient videoStitcherServiceClient =
    *     VideoStitcherServiceClient.create()) {
    *   GetLiveSessionRequest request =
diff --git a/java-video-stitcher/google-cloud-video-stitcher/src/main/java/com/google/cloud/video/stitcher/v1/VideoStitcherServiceSettings.java b/java-video-stitcher/google-cloud-video-stitcher/src/main/java/com/google/cloud/video/stitcher/v1/VideoStitcherServiceSettings.java
index 4ce956530001..bac501774ddd 100644
--- a/java-video-stitcher/google-cloud-video-stitcher/src/main/java/com/google/cloud/video/stitcher/v1/VideoStitcherServiceSettings.java
+++ b/java-video-stitcher/google-cloud-video-stitcher/src/main/java/com/google/cloud/video/stitcher/v1/VideoStitcherServiceSettings.java
@@ -57,8 +57,11 @@
  * <p>For example, to set the total timeout of createCdnKey to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // 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.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * VideoStitcherServiceSettings.Builder videoStitcherServiceSettingsBuilder =
  *     VideoStitcherServiceSettings.newBuilder();
  * videoStitcherServiceSettingsBuilder
diff --git a/java-video-stitcher/google-cloud-video-stitcher/src/main/java/com/google/cloud/video/stitcher/v1/package-info.java b/java-video-stitcher/google-cloud-video-stitcher/src/main/java/com/google/cloud/video/stitcher/v1/package-info.java
index 6f29797a48f9..47c232ecddd8 100644
--- a/java-video-stitcher/google-cloud-video-stitcher/src/main/java/com/google/cloud/video/stitcher/v1/package-info.java
+++ b/java-video-stitcher/google-cloud-video-stitcher/src/main/java/com/google/cloud/video/stitcher/v1/package-info.java
@@ -29,8 +29,11 @@
  * <p>Sample for VideoStitcherServiceClient:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // 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.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (VideoStitcherServiceClient videoStitcherServiceClient =
  *     VideoStitcherServiceClient.create()) {
  *   LocationName parent = LocationName.of("[PROJECT]", "[LOCATION]");
diff --git a/java-video-stitcher/google-cloud-video-stitcher/src/main/java/com/google/cloud/video/stitcher/v1/stub/VideoStitcherServiceStubSettings.java b/java-video-stitcher/google-cloud-video-stitcher/src/main/java/com/google/cloud/video/stitcher/v1/stub/VideoStitcherServiceStubSettings.java
index 2c8d7dc03a03..795fa34839a0 100644
--- a/java-video-stitcher/google-cloud-video-stitcher/src/main/java/com/google/cloud/video/stitcher/v1/stub/VideoStitcherServiceStubSettings.java
+++ b/java-video-stitcher/google-cloud-video-stitcher/src/main/java/com/google/cloud/video/stitcher/v1/stub/VideoStitcherServiceStubSettings.java
@@ -104,8 +104,11 @@
  * <p>For example, to set the total timeout of createCdnKey to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // 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.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * VideoStitcherServiceStubSettings.Builder videoStitcherServiceSettingsBuilder =
  *     VideoStitcherServiceStubSettings.newBuilder();
  * videoStitcherServiceSettingsBuilder