@Override
  public boolean isShutdown() {
    return backgroundResources.isShutdown();
  }
Constructs an instance of GrpcTranscoderServiceStub, using the given settings. This is
protected so that it is easy to make a subclass, but otherwise, the static factory methods
should be preferred.
java-video-transcoder/google-cloud-video-transcoder/src/main/java/com/google/cloud/video/transcoder/v1/stub/GrpcTranscoderServiceStub.java