docs: def _append_string(self, value, _file):  # pylint: disable=no-self-use
          """Call this function to write string contents.
  
          Keyword arguments:
              * value - dict, content to be dumped
              * _file - FileIO, output file
  
          """
          _text = str(value).replace('"', '\\"')
          _labs = ' "{text}"'.format(text=_text)
          _file.write(_labs)