@Override
  public final void close() {
    stub.close();
  }
Performs asynchronous video annotation. Progress and results can be retrieved through the
`google.longrunning.Operations` interface. `Operation.metadata` contains
`AnnotateVideoProgress` (progress). `Operation.response` contains `AnnotateVideoResponse`
(results).

<p>Sample code:

<pre>{@code
// This snippet has been automatically generated and 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 (VideoIntelligenceServiceClient videoIntelligenceServiceClient =
    VideoIntelligenceServiceClient.create()) {
  AnnotateVideoRequest request =
      AnnotateVideoRequest.newBuilder()
          .setInputUri("inputUri470706498")
          .setInputContent(ByteString.EMPTY)
          .addAllFeatures(new ArrayList<Feature>())
          .setVideoContext(VideoContext.newBuilder().build())
          .setOutputUri("outputUri-2119300949")
          .setLocationId("locationId1541836720")
          .build();
  ApiFuture<Operation> future =
      videoIntelligenceServiceClient.annotateVideoCallable().futureCall(request);
  // Do something.
  Operation response = future.get();
}
}</pre>
java-video-intelligence/google-cloud-video-intelligence/src/main/java/com/google/cloud/videointelligence/v1p3beta1/VideoIntelligenceServiceClient.java