public OperationCallable<UpdateDraftRequest, Draft, OperationMetadata>
      updateDraftOperationCallable() {
    throw new UnsupportedOperationException("Not implemented: updateDraftOperationCallable()");
  }
Base stub class for the AppPlatform service API.

<p>This class is for advanced usage and reflects the underlying API directly.
java-visionai/google-cloud-visionai/src/main/java/com/google/cloud/visionai/v1/stub/AppPlatformStub.java