Use this method to send general files.
        :param chat_id:
        :param data:
        :param reply_to_message_id:
        :param reply_markup:
        :param parse_mode:
        :param disable_notification:
        :return: API reply.

def send_document(self, chat_id, data, reply_to_message_id=None, caption=None, reply_markup=None,
                      parse_mode=None, disable_notification=None, timeout=None):
        """
        Use this method to send general files.
        :param chat_id:
        :param data:
        :param reply_to_message_id:
        :param reply_markup:
        :param parse_mode:
        :param disable_notification:
        :return: API reply.
        """
        return types.Message.de_json(
            apihelper.send_data(self.token, chat_id, data, 'document', reply_to_message_id, reply_markup,
                                parse_mode, disable_notification, timeout, caption=caption))