See: https://core.telegram.org/bots/api#sendvoice

        :param voice: Same as ``photo`` in :meth:`telepot.Bot.sendPhoto`

def sendVoice(self, chat_id, voice,
                  caption=None,
                  parse_mode=None,
                  duration=None,
                  disable_notification=None,
                  reply_to_message_id=None,
                  reply_markup=None):
        """
        See: https://core.telegram.org/bots/api#sendvoice

        :param voice: Same as ``photo`` in :meth:`telepot.Bot.sendPhoto`
        """
        p = _strip(locals(), more=['voice'])
        return self._api_request_with_file('sendVoice', _rectify(p), 'voice', voice)