@Override
  public BidiStreamingCallable<ReceivePacketsRequest, ReceivePacketsResponse>
      receivePacketsCallable() {
    throw new UnsupportedOperationException(
        "Not implemented: receivePacketsCallable(). REST transport is not implemented for this"
            + " method yet.");
  }
Constructs an instance of HttpJsonStreamingServiceStub, 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-visionai/google-cloud-visionai/src/main/java/com/google/cloud/visionai/v1/stub/HttpJsonStreamingServiceStub.java