'Use this method to send audio files, if you want Telegram clients to display the file as a playable voice message.
:param chat_id:Unique identifier for the message recipient.
:param voice:
:param duration:Duration of sent audio in seconds
:param reply_to_message_id:
:param reply_markup:
:return: Message'

def send_voice(self, chat_id, voice, caption=None, duration=None, reply_to_message_id=None, reply_markup=None, disable_notification=None, timeout=None):

    return types.Message.de_json(apihelper.send_voice(self.token, chat_id, voice, caption, duration, reply_to_message_id, reply_markup, disable_notification, timeout))
