docs: def _append_bytes(self, value, _file):  # pylint: disable=no-self-use
          """Call this function to write bytes contents.
  
          Keyword arguments:
              * value - dict, content to be dumped
              * _file - FileIO, output file
  
          """
          # binascii.b2a_base64(value) -> plistlib.Data
          # binascii.a2b_base64(Data) -> value(bytes)
  
          _text = ' '.join(textwrap.wrap(value.hex(), 2))
          # _data = [H for H in iter(
          #         functools.partial(io.StringIO(value.hex()).read, 2), '')
          #         ]  # to split bytes string into length-2 hex string list
          _labs = ' "{text}"'.format(text=_text)
          _file.write(_labs)