diff --git a/src/main/java/com/google/api/generator/gapic/composer/ServiceClientClassComposer.java b/src/main/java/com/google/api/generator/gapic/composer/ServiceClientClassComposer.java
index ccd8cafaf2..1634f121b7 100644
--- a/src/main/java/com/google/api/generator/gapic/composer/ServiceClientClassComposer.java
+++ b/src/main/java/com/google/api/generator/gapic/composer/ServiceClientClassComposer.java
@@ -500,7 +500,8 @@ private static List<MethodDefinition> createServiceMethods(
                 resourceNames));
       }
       if (method.hasLro()) {
-        javaMethods.add(createLroCallableMethod(service, method, types));
+        javaMethods.add(
+            createLroCallableMethod(service, method, types, messageTypes, resourceNames));
       }
       if (method.isPaged()) {
         javaMethods.add(createPagedCallableMethod(service, method, types));
@@ -680,25 +681,49 @@ private static MethodDefinition createMethodDefaultMethod(
   }
 
   private static MethodDefinition createLroCallableMethod(
-      Service service, Method method, Map<String, TypeNode> types) {
-    return createCallableMethod(service, method, types, CallableMethodKind.LRO);
+      Service service,
+      Method method,
+      Map<String, TypeNode> types,
+      Map<String, Message> messageTypes,
+      Map<String, ResourceName> resourceNames) {
+    return createCallableMethod(
+        service, method, CallableMethodKind.LRO, types, messageTypes, resourceNames);
   }
 
   private static MethodDefinition createCallableMethod(
       Service service, Method method, Map<String, TypeNode> types) {
-    return createCallableMethod(service, method, types, CallableMethodKind.REGULAR);
+    // TODO(summerji): Implement sample code for callable methods which include stream methods and
+    // unary methods,
+    //  and pass in actual map of Messages and ResourceNames
+    return createCallableMethod(
+        service,
+        method,
+        CallableMethodKind.REGULAR,
+        types,
+        Collections.emptyMap(),
+        Collections.emptyMap());
   }
 
   private static MethodDefinition createPagedCallableMethod(
       Service service, Method method, Map<String, TypeNode> types) {
-    return createCallableMethod(service, method, types, CallableMethodKind.PAGED);
+    // TODO(summerji): Implement sample code for paged callable method and pass in actual map of
+    // Messages and ResourceNames
+    return createCallableMethod(
+        service,
+        method,
+        CallableMethodKind.PAGED,
+        types,
+        Collections.emptyMap(),
+        Collections.emptyMap());
   }
 
   private static MethodDefinition createCallableMethod(
       Service service,
       Method method,
+      CallableMethodKind callableMethodKind,
       Map<String, TypeNode> types,
-      CallableMethodKind callableMethodKind) {
+      Map<String, Message> messageTypes,
+      Map<String, ResourceName> resourceNames) {
     TypeNode rawCallableReturnType = null;
     if (callableMethodKind.equals(CallableMethodKind.LRO)) {
       rawCallableReturnType = types.get("OperationCallable");
@@ -740,9 +765,22 @@ private static MethodDefinition createCallableMethod(
             .setReturnType(returnType)
             .build();
 
+    Optional<String> sampleCode = Optional.empty();
+    // TODO (summerji): Implement sample code for CallableMethodKind.PAGED and
+    // CallableMethodKind.REGULAR
+    if (callableMethodKind.equals(CallableMethodKind.LRO)) {
+      sampleCode =
+          Optional.of(
+              ServiceClientSampleCodeComposer.composeLroCallableMethodHeaderSampleCode(
+                  method,
+                  types.get(ClassNames.getServiceClientClassName(service)),
+                  resourceNames,
+                  messageTypes));
+    }
+
     return MethodDefinition.builder()
         .setHeaderCommentStatements(
-            ServiceClientCommentComposer.createRpcCallableMethodHeaderComment(method))
+            ServiceClientCommentComposer.createRpcCallableMethodHeaderComment(method, sampleCode))
         .setScope(ScopeNode.PUBLIC)
         .setIsFinal(true)
         .setName(methodName)
diff --git a/src/main/java/com/google/api/generator/gapic/composer/ServiceClientCommentComposer.java b/src/main/java/com/google/api/generator/gapic/composer/ServiceClientCommentComposer.java
index c3b9158d9b..c5ee9a98d6 100644
--- a/src/main/java/com/google/api/generator/gapic/composer/ServiceClientCommentComposer.java
+++ b/src/main/java/com/google/api/generator/gapic/composer/ServiceClientCommentComposer.java
@@ -215,7 +215,8 @@ static CommentStatement createMethodSettingsArgComment(String serviceName) {
     return toSimpleComment(String.format(CREATE_METHOD_SETTINGS_ARG_PATTERN, serviceName));
   }
 
-  static List<CommentStatement> createRpcCallableMethodHeaderComment(Method method) {
+  static List<CommentStatement> createRpcCallableMethodHeaderComment(
+      Method method, Optional<String> sampleCode) {
     JavaDocComment.Builder methodJavadocBuilder = JavaDocComment.builder();
 
     if (method.hasDescription()) {
@@ -224,7 +225,9 @@ static List<CommentStatement> createRpcCallableMethodHeaderComment(Method method
     }
 
     methodJavadocBuilder.addParagraph(METHOD_DESCRIPTION_SAMPLE_CODE_SUMMARY_STRING);
-    // TODO(summerji): Add sample code here.
+    if (sampleCode.isPresent()) {
+      methodJavadocBuilder.addSampleCode(sampleCode.get());
+    }
 
     return Arrays.asList(
         CommentComposer.AUTO_GENERATED_METHOD_COMMENT,
diff --git a/src/main/java/com/google/api/generator/gapic/composer/ServiceClientSampleCodeComposer.java b/src/main/java/com/google/api/generator/gapic/composer/ServiceClientSampleCodeComposer.java
index b60c329ab5..d26a1f129a 100644
--- a/src/main/java/com/google/api/generator/gapic/composer/ServiceClientSampleCodeComposer.java
+++ b/src/main/java/com/google/api/generator/gapic/composer/ServiceClientSampleCodeComposer.java
@@ -15,6 +15,7 @@
 package com.google.api.generator.gapic.composer;
 
 import com.google.api.gax.core.FixedCredentialsProvider;
+import com.google.api.gax.longrunning.OperationFuture;
 import com.google.api.generator.engine.ast.AssignmentExpr;
 import com.google.api.generator.engine.ast.CommentStatement;
 import com.google.api.generator.engine.ast.ConcreteReference;
@@ -289,6 +290,114 @@ public static String composeRpcDefaultMethodHeaderSampleCode(
             .build());
   }
 
+  public static String composeLroCallableMethodHeaderSampleCode(
+      Method method,
+      TypeNode clientType,
+      Map<String, ResourceName> resourceNames,
+      Map<String, Message> messageTypes) {
+    VariableExpr clientVarExpr =
+        VariableExpr.withVariable(
+            Variable.builder()
+                .setName(JavaStyle.toLowerCamelCase(clientType.reference().name()))
+                .setType(clientType)
+                .build());
+    // Assign method's request variable with the default value.
+    VariableExpr requestVarExpr =
+        VariableExpr.withVariable(
+            Variable.builder().setName("request").setType(method.inputType()).build());
+    Message requestMessage = messageTypes.get(method.inputType().reference().simpleName());
+    Preconditions.checkNotNull(requestMessage);
+    Expr requestBuilderExpr =
+        DefaultValueComposer.createSimpleMessageBuilderExpr(
+            requestMessage, resourceNames, messageTypes);
+    AssignmentExpr requestAssignmentExpr =
+        AssignmentExpr.builder()
+            .setVariableExpr(requestVarExpr.toBuilder().setIsDecl(true).build())
+            .setValueExpr(requestBuilderExpr)
+            .build();
+
+    List<Expr> bodyExprs = new ArrayList<>();
+    bodyExprs.add(requestAssignmentExpr);
+
+    // Create OperationFuture variable expr with invoking client's LRO callable method.
+    // e.g. OperationFuture<Empty, WaitMetadata> future =
+    //          echoClient.waitOperationCallable().futureCall(request);
+    TypeNode operationFutureType =
+        TypeNode.withReference(
+            ConcreteReference.builder()
+                .setClazz(OperationFuture.class)
+                .setGenerics(
+                    method.lro().responseType().reference(),
+                    method.lro().metadataType().reference())
+                .build());
+    VariableExpr operationFutureVarExpr =
+        VariableExpr.withVariable(
+            Variable.builder().setName("future").setType(operationFutureType).build());
+    MethodInvocationExpr rpcMethodInvocationExpr =
+        MethodInvocationExpr.builder()
+            .setExprReferenceExpr(clientVarExpr)
+            .setMethodName(
+                String.format("%sOperationCallable", JavaStyle.toLowerCamelCase(method.name())))
+            .build();
+    rpcMethodInvocationExpr =
+        MethodInvocationExpr.builder()
+            .setExprReferenceExpr(rpcMethodInvocationExpr)
+            .setMethodName("futureCall")
+            .setArguments(requestVarExpr)
+            .setReturnType(operationFutureType)
+            .build();
+    bodyExprs.add(
+        AssignmentExpr.builder()
+            .setVariableExpr(operationFutureVarExpr.toBuilder().setIsDecl(true).build())
+            .setValueExpr(rpcMethodInvocationExpr)
+            .build());
+
+    List<Statement> bodyStatements =
+        bodyExprs.stream().map(e -> ExprStatement.withExpr(e)).collect(Collectors.toList());
+    bodyExprs.clear();
+    // Add a line comment
+    bodyStatements.add(CommentStatement.withComment(LineComment.withComment("Do something.")));
+
+    // Assign response variable with invoking client's LRO method.
+    // e.g. if return void, future.get(); or,
+    // e.g. if return other type, WaitResponse response = future.get();
+    MethodInvocationExpr futureGetMethodExpr =
+        MethodInvocationExpr.builder()
+            .setExprReferenceExpr(operationFutureVarExpr)
+            .setMethodName("get")
+            .setReturnType(method.lro().responseType())
+            .build();
+    boolean returnVoid = isProtoEmptyType(method.lro().responseType());
+    if (returnVoid) {
+      bodyExprs.add(futureGetMethodExpr);
+    } else {
+      VariableExpr responseVarExpr =
+          VariableExpr.builder()
+              .setVariable(
+                  Variable.builder()
+                      .setName("response")
+                      .setType(method.lro().responseType())
+                      .build())
+              .setIsDecl(true)
+              .build();
+      bodyExprs.add(
+          AssignmentExpr.builder()
+              .setVariableExpr(responseVarExpr)
+              .setValueExpr(futureGetMethodExpr)
+              .build());
+    }
+    bodyStatements.addAll(
+        bodyExprs.stream().map(e -> ExprStatement.withExpr(e)).collect(Collectors.toList()));
+    bodyExprs.clear();
+
+    return SampleCodeWriter.write(
+        TryCatchStatement.builder()
+            .setTryResourceExpr(assignClientVariableWithCreateMethodExpr(clientVarExpr))
+            .setTryBody(bodyStatements)
+            .setIsSampleCode(true)
+            .build());
+  }
+
   private static List<Statement> composeUnaryRpcMethodSampleCodeBodyStatements(
       Method method,
       VariableExpr clientVarExpr,
@@ -385,7 +494,7 @@ private static List<Statement> composeUnaryLroRpcMethodSampleCodeBodyStatements(
       VariableExpr clientVarExpr,
       List<VariableExpr> rpcMethodArgVarExprs,
       List<Expr> bodyExprs) {
-    // Assign response variable with invoking client's lro method.
+    // Assign response variable with invoking client's LRO method.
     // e.g. if return void, echoClient.waitAsync(ttl).get(); or,
     // e.g. if return other type, WaitResponse response = echoClient.waitAsync(ttl).get();
     Expr invokeLroGetMethodExpr =
diff --git a/src/test/java/com/google/api/generator/gapic/composer/ServiceClientSampleCodeComposerTest.java b/src/test/java/com/google/api/generator/gapic/composer/ServiceClientSampleCodeComposerTest.java
index 3e5d82a8b0..441bea4c65 100644
--- a/src/test/java/com/google/api/generator/gapic/composer/ServiceClientSampleCodeComposerTest.java
+++ b/src/test/java/com/google/api/generator/gapic/composer/ServiceClientSampleCodeComposerTest.java
@@ -1397,4 +1397,112 @@ public void validComposeRpcDefaultMethodHeaderSampleCode_pureUnaryReturnResponse
             "}");
     assertEquals(results, expected);
   }
+
+  // ================================LRO Callable Method Sample Code ====================//
+  @Test
+  public void validComposeLroCallableMethodHeaderSampleCode_withReturnResponse() {
+    FileDescriptor echoFileDescriptor = EchoOuterClass.getDescriptor();
+    Map<String, ResourceName> resourceNames = Parser.parseResourceNames(echoFileDescriptor);
+    Map<String, Message> messageTypes = Parser.parseMessages(echoFileDescriptor);
+    TypeNode clientType =
+        TypeNode.withReference(
+            VaporReference.builder()
+                .setName("EchoClient")
+                .setPakkage(SHOWCASE_PACKAGE_NAME)
+                .build());
+    TypeNode inputType =
+        TypeNode.withReference(
+            VaporReference.builder()
+                .setName("WaitRequest")
+                .setPakkage(SHOWCASE_PACKAGE_NAME)
+                .build());
+    TypeNode outputType =
+        TypeNode.withReference(
+            VaporReference.builder().setName("Operation").setPakkage(LRO_PACKAGE_NAME).build());
+    TypeNode responseType =
+        TypeNode.withReference(
+            VaporReference.builder()
+                .setName("WaitResponse")
+                .setPakkage(SHOWCASE_PACKAGE_NAME)
+                .build());
+    TypeNode metadataType =
+        TypeNode.withReference(
+            VaporReference.builder()
+                .setName("WaitMetadata")
+                .setPakkage(SHOWCASE_PACKAGE_NAME)
+                .build());
+    LongrunningOperation lro = LongrunningOperation.withTypes(responseType, metadataType);
+    Method method =
+        Method.builder()
+            .setName("Wait")
+            .setInputType(inputType)
+            .setOutputType(outputType)
+            .setLro(lro)
+            .build();
+    String results =
+        ServiceClientSampleCodeComposer.composeLroCallableMethodHeaderSampleCode(
+            method, clientType, resourceNames, messageTypes);
+    String expected =
+        LineFormatter.lines(
+            "try (EchoClient echoClient = EchoClient.create()) {\n",
+            "  WaitRequest request = WaitRequest.newBuilder().build();\n",
+            "  OperationFuture<WaitResponse, WaitMetadata> future =\n",
+            "      echoClient.waitOperationCallable().futureCall(request);\n",
+            "  // Do something.\n",
+            "  WaitResponse response = future.get();\n",
+            "}");
+    assertEquals(results, expected);
+  }
+
+  @Test
+  public void validComposeLroCallableMethodHeaderSampleCode_withReturnVoid() {
+    FileDescriptor echoFileDescriptor = EchoOuterClass.getDescriptor();
+    Map<String, ResourceName> resourceNames = Parser.parseResourceNames(echoFileDescriptor);
+    Map<String, Message> messageTypes = Parser.parseMessages(echoFileDescriptor);
+    TypeNode clientType =
+        TypeNode.withReference(
+            VaporReference.builder()
+                .setName("EchoClient")
+                .setPakkage(SHOWCASE_PACKAGE_NAME)
+                .build());
+    TypeNode inputType =
+        TypeNode.withReference(
+            VaporReference.builder()
+                .setName("WaitRequest")
+                .setPakkage(SHOWCASE_PACKAGE_NAME)
+                .build());
+    TypeNode outputType =
+        TypeNode.withReference(
+            VaporReference.builder().setName("Operation").setPakkage(LRO_PACKAGE_NAME).build());
+    TypeNode responseType =
+        TypeNode.withReference(
+            VaporReference.builder().setName("Empty").setPakkage(PROTO_PACKAGE_NAME).build());
+    TypeNode metadataType =
+        TypeNode.withReference(
+            VaporReference.builder()
+                .setName("WaitMetadata")
+                .setPakkage(SHOWCASE_PACKAGE_NAME)
+                .build());
+    LongrunningOperation lro = LongrunningOperation.withTypes(responseType, metadataType);
+    Method method =
+        Method.builder()
+            .setName("Wait")
+            .setInputType(inputType)
+            .setOutputType(outputType)
+            .setLro(lro)
+            .build();
+    String results =
+        ServiceClientSampleCodeComposer.composeLroCallableMethodHeaderSampleCode(
+            method, clientType, resourceNames, messageTypes);
+    String expected =
+        LineFormatter.lines(
+            "try (EchoClient echoClient = EchoClient.create()) {\n",
+            "  WaitRequest request = WaitRequest.newBuilder().build();\n",
+            "  OperationFuture<Empty, WaitMetadata> future =\n",
+            "      echoClient.waitOperationCallable().futureCall(request);\n",
+            "  // Do something.\n",
+            "  future.get();\n",
+            "}");
+    assertEquals(results, expected);
+  }
 }
diff --git a/src/test/java/com/google/api/generator/gapic/composer/goldens/EchoClient.golden b/src/test/java/com/google/api/generator/gapic/composer/goldens/EchoClient.golden
index 15d93be4eb..b9585ec489 100644
--- a/src/test/java/com/google/api/generator/gapic/composer/goldens/EchoClient.golden
+++ b/src/test/java/com/google/api/generator/gapic/composer/goldens/EchoClient.golden
@@ -504,7 +504,19 @@ public class EchoClient implements BackgroundResource {
   }
 
   // AUTO-GENERATED DOCUMENTATION AND METHOD.
-  /** Sample code: */
+  /**
+   * Sample code:
+   *
+   * <pre>{@code
+   * try (EchoClient echoClient = EchoClient.create()) {
+   *   WaitRequest request = WaitRequest.newBuilder().build();
+   *   OperationFuture<WaitResponse, WaitMetadata> future =
+   *       echoClient.waitOperationCallable().futureCall(request);
+   *   // Do something.
+   *   WaitResponse response = future.get();
+   * }
+   * }</pre>
+   */
   public final OperationCallable<WaitRequest, WaitResponse, WaitMetadata> waitOperationCallable() {
     return stub.waitOperationCallable();
   }
diff --git a/test/integration/goldens/asset/AssetServiceClient.java b/test/integration/goldens/asset/AssetServiceClient.java
index 24702ea4f4..6a39beb127 100644
--- a/test/integration/goldens/asset/AssetServiceClient.java
+++ b/test/integration/goldens/asset/AssetServiceClient.java
@@ -202,6 +202,22 @@ public final OperationFuture<ExportAssetsResponse, ExportAssetsRequest> exportAs
    * export operation usually finishes within 5 minutes.
    *
    * <p>Sample code:
+   *
+   * <pre>{@code
+   * try (AssetServiceClient assetServiceClient = AssetServiceClient.create()) {
+   *   ExportAssetsRequest request =
+   *       ExportAssetsRequest.newBuilder()
+   *           .setParent(FeedName.ofProjectFeedName("[PROJECT]", "[FEED]").toString())
+   *           .setReadTime(Timestamp.newBuilder().build())
+   *           .addAllAssetTypes(new ArrayList<String>())
+   *           .setOutputConfig(OutputConfig.newBuilder().build())
+   *           .build();
+   *   OperationFuture<ExportAssetsResponse, ExportAssetsRequest> future =
+   *       assetServiceClient.exportAssetsOperationCallable().futureCall(request);
+   *   // Do something.
+   *   ExportAssetsResponse response = future.get();
+   * }
+   * }</pre>
    */
   public final OperationCallable<ExportAssetsRequest, ExportAssetsResponse, ExportAssetsRequest>
       exportAssetsOperationCallable() {
diff --git a/test/integration/goldens/redis/CloudRedisClient.java b/test/integration/goldens/redis/CloudRedisClient.java
index 72ebd6d532..bf6aba5541 100644
--- a/test/integration/goldens/redis/CloudRedisClient.java
+++ b/test/integration/goldens/redis/CloudRedisClient.java
@@ -561,6 +561,21 @@ public final OperationFuture<Instance, OperationMetadata> createInstanceAsync(
    * call DeleteOperation.
    *
    * <p>Sample code:
+   *
+   * <pre>{@code
+   * try (CloudRedisClient cloudRedisClient = CloudRedisClient.create()) {
+   *   CreateInstanceRequest request =
+   *       CreateInstanceRequest.newBuilder()
+   *           .setParent(LocationName.of("[PROJECT]", "[LOCATION]").toString())
+   *           .setInstanceId("instanceId902024336")
+   *           .setInstance(Instance.newBuilder().build())
+   *           .build();
+   *   OperationFuture<Instance, OperationMetadata> future =
+   *       cloudRedisClient.createInstanceOperationCallable().futureCall(request);
+   *   // Do something.
+   *   Instance response = future.get();
+   * }
+   * }</pre>
    */
   public final OperationCallable<CreateInstanceRequest, Instance, OperationMetadata>
       createInstanceOperationCallable() {
@@ -658,6 +673,20 @@ public final OperationFuture<Instance, OperationMetadata> updateInstanceAsync(
    * DeleteOperation.
    *
    * <p>Sample code:
+   *
+   * <pre>{@code
+   * try (CloudRedisClient cloudRedisClient = CloudRedisClient.create()) {
+   *   UpdateInstanceRequest request =
+   *       UpdateInstanceRequest.newBuilder()
+   *           .setUpdateMask(FieldMask.newBuilder().build())
+   *           .setInstance(Instance.newBuilder().build())
+   *           .build();
+   *   OperationFuture<Instance, OperationMetadata> future =
+   *       cloudRedisClient.updateInstanceOperationCallable().futureCall(request);
+   *   // Do something.
+   *   Instance response = future.get();
+   * }
+   * }</pre>
    */
   public final OperationCallable<UpdateInstanceRequest, Instance, OperationMetadata>
       updateInstanceOperationCallable() {
@@ -765,6 +794,20 @@ public final OperationFuture<Instance, OperationMetadata> upgradeInstanceAsync(
    * Upgrades Redis instance to the newer Redis version specified in the request.
    *
    * <p>Sample code:
+   *
+   * <pre>{@code
+   * try (CloudRedisClient cloudRedisClient = CloudRedisClient.create()) {
+   *   UpgradeInstanceRequest request =
+   *       UpgradeInstanceRequest.newBuilder()
+   *           .setName(InstanceName.of("[PROJECT]", "[LOCATION]", "[INSTANCE]").toString())
+   *           .setRedisVersion("redisVersion-1972584739")
+   *           .build();
+   *   OperationFuture<Instance, OperationMetadata> future =
+   *       cloudRedisClient.upgradeInstanceOperationCallable().futureCall(request);
+   *   // Do something.
+   *   Instance response = future.get();
+   * }
+   * }</pre>
    */
   public final OperationCallable<UpgradeInstanceRequest, Instance, OperationMetadata>
       upgradeInstanceOperationCallable() {
@@ -856,6 +899,20 @@ public final OperationFuture<Instance, OperationMetadata> importInstanceAsync(
    * call DeleteOperation.
    *
    * <p>Sample code:
+   *
+   * <pre>{@code
+   * try (CloudRedisClient cloudRedisClient = CloudRedisClient.create()) {
+   *   ImportInstanceRequest request =
+   *       ImportInstanceRequest.newBuilder()
+   *           .setName("name3373707")
+   *           .setInputConfig(InputConfig.newBuilder().build())
+   *           .build();
+   *   OperationFuture<Instance, OperationMetadata> future =
+   *       cloudRedisClient.importInstanceOperationCallable().futureCall(request);
+   *   // Do something.
+   *   Instance response = future.get();
+   * }
+   * }</pre>
    */
   public final OperationCallable<ImportInstanceRequest, Instance, OperationMetadata>
       importInstanceOperationCallable() {
@@ -950,6 +1007,20 @@ public final OperationFuture<Instance, OperationMetadata> exportInstanceAsync(
    * call DeleteOperation.
    *
    * <p>Sample code:
+   *
+   * <pre>{@code
+   * try (CloudRedisClient cloudRedisClient = CloudRedisClient.create()) {
+   *   ExportInstanceRequest request =
+   *       ExportInstanceRequest.newBuilder()
+   *           .setName("name3373707")
+   *           .setOutputConfig(OutputConfig.newBuilder().build())
+   *           .build();
+   *   OperationFuture<Instance, OperationMetadata> future =
+   *       cloudRedisClient.exportInstanceOperationCallable().futureCall(request);
+   *   // Do something.
+   *   Instance response = future.get();
+   * }
+   * }</pre>
    */
   public final OperationCallable<ExportInstanceRequest, Instance, OperationMetadata>
       exportInstanceOperationCallable() {
@@ -1068,6 +1139,19 @@ public final OperationFuture<Instance, OperationMetadata> failoverInstanceAsync(
    * Cloud Memorystore for Redis instance.
    *
    * <p>Sample code:
+   *
+   * <pre>{@code
+   * try (CloudRedisClient cloudRedisClient = CloudRedisClient.create()) {
+   *   FailoverInstanceRequest request =
+   *       FailoverInstanceRequest.newBuilder()
+   *           .setName(InstanceName.of("[PROJECT]", "[LOCATION]", "[INSTANCE]").toString())
+   *           .build();
+   *   OperationFuture<Instance, OperationMetadata> future =
+   *       cloudRedisClient.failoverInstanceOperationCallable().futureCall(request);
+   *   // Do something.
+   *   Instance response = future.get();
+   * }
+   * }</pre>
    */
   public final OperationCallable<FailoverInstanceRequest, Instance, OperationMetadata>
       failoverInstanceOperationCallable() {
@@ -1161,6 +1245,19 @@ public final OperationFuture<Empty, OperationMetadata> deleteInstanceAsync(
    * Deletes a specific Redis instance. Instance stops serving and data is deleted.
    *
    * <p>Sample code:
+   *
+   * <pre>{@code
+   * try (CloudRedisClient cloudRedisClient = CloudRedisClient.create()) {
+   *   DeleteInstanceRequest request =
+   *       DeleteInstanceRequest.newBuilder()
+   *           .setName(InstanceName.of("[PROJECT]", "[LOCATION]", "[INSTANCE]").toString())
+   *           .build();
+   *   OperationFuture<Empty, OperationMetadata> future =
+   *       cloudRedisClient.deleteInstanceOperationCallable().futureCall(request);
+   *   // Do something.
+   *   future.get();
+   * }
+   * }</pre>
    */
   public final OperationCallable<DeleteInstanceRequest, Empty, OperationMetadata>
       deleteInstanceOperationCallable() {