@Override
  public UnaryCallable<CreateDataSchemaRequest, DataSchema> createDataSchemaCallable() {
    return createDataSchemaCallable;
  }
Constructs an instance of HttpJsonWarehouseStub, 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/HttpJsonWarehouseStub.java