docs: def _user_yes_no_query(self, question):
          """ Helper asking if the user want to download the file
  
          Note:
              Dowloading huge file can take a while
  
          """
          sys.stdout.write('%s [y/n]\n' % question)
          while True:
              try:
                  return strtobool(raw_input().lower())
              except ValueError:
                  sys.stdout.write('Please respond with \'y\' or \'n\'.\n')