code: public Observable<OCR> oCRMethodAsync(String language, OCRMethodOptionalParameter oCRMethodOptionalParameter) {
          return oCRMethodWithServiceResponseAsync(language, oCRMethodOptionalParameter).map(new Func1<ServiceResponse<OCR>, OCR>() {
              @Override
              public OCR call(ServiceResponse<OCR> response) {
                  return response.body();
              }
          });
      }
docs: Returns any text found in the image for the language specified. If no language is specified in input then the detection defaults to English.
  
  @param language Language of the terms.
  @param oCRMethodOptionalParameter 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 OCR object