code: def sendVoice(self, chat_id, voice,
                    caption=None,
                    parse_mode=None,
                    duration=None,
                    disable_notification=None,
                    reply_to_message_id=None,
                    reply_markup=None):
          
          p = _strip(locals(), more=['voice'])
          return self._api_request_with_file('sendVoice', _rectify(p), 'voice', voice)
docs: See: https://core.telegram.org/bots/api#sendvoice
  
          :param voice: Same as ``photo`` in :meth:`telepot.Bot.sendPhoto`