Use this method to get the number of members in a chat. Returns Int on success.
        :param chat_id:
        :return:

def get_chat_members_count(self, chat_id):
        """
        Use this method to get the number of members in a chat. Returns Int on success.
        :param chat_id:
        :return:
        """
        result = apihelper.get_chat_members_count(self.token, chat_id)
        return result