code: private void addPostParams(final Request request) {
          if (language != null) {
              request.addPostParam("Language", language);
          }
  
          if (taggedText != null) {
              request.addPostParam("TaggedText", taggedText);
          }
  
          if (sourceChannel != null) {
              request.addPostParam("SourceChannel", sourceChannel);
          }
      }
docs: Add the requested post parameters to the Request.
  
  @param request Request to add post params to