code: public void download(GenericUrl requestUrl, OutputStream outputStream) throws IOException {
      download(requestUrl, null, outputStream);
    }
docs: Executes a direct media download or a resumable media download.
  
  <p>
  This method does not close the given output stream.
  </p>
  
  <p>
  This method is not reentrant. A new instance of {@link MediaHttpDownloader} must be
  instantiated before download called be called again.
  </p>
  
  @param requestUrl The request URL where the download requests will be sent
  @param outputStream destination output stream