code: public Observable<ImagePrediction> predictImageUrlAsync(UUID projectId, PredictImageUrlOptionalParameter predictImageUrlOptionalParameter) {
          return predictImageUrlWithServiceResponseAsync(projectId, predictImageUrlOptionalParameter).map(new Func1<ServiceResponse<ImagePrediction>, ImagePrediction>() {
              @Override
              public ImagePrediction call(ServiceResponse<ImagePrediction> response) {
                  return response.body();
              }
          });
      }
docs: Predict an image url and saves the result.
  
  @param projectId The project id
  @param predictImageUrlOptionalParameter the object representing the optional parameters to be set before calling this API
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the observable to the ImagePrediction object