@Override
  public boolean isShutdown() {
    return backgroundResources.isShutdown();
  }
Constructs an instance of GrpcWebRiskServiceV1Beta1Stub, 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-webrisk/google-cloud-webrisk/src/main/java/com/google/cloud/webrisk/v1beta1/stub/GrpcWebRiskServiceV1Beta1Stub.java