Use this method to pin a message in a supergroup.
        The bot must be an administrator in the chat for this to work and must have the appropriate admin rights.
        Returns True on success.
        :param chat_id: Int or Str: Unique identifier for the target chat or username of the target channel
            (in the format @channelusername)
        :param message_id: Int: Identifier of a message to pin
        :param disable_notification: Bool: Pass True, if it is not necessary to send a notification
            to all group members about the new pinned message
        :return:

def pin_chat_message(self, chat_id, message_id, disable_notification=False):
        """
        Use this method to pin a message in a supergroup.
        The bot must be an administrator in the chat for this to work and must have the appropriate admin rights.
        Returns True on success.
        :param chat_id: Int or Str: Unique identifier for the target chat or username of the target channel
            (in the format @channelusername)
        :param message_id: Int: Identifier of a message to pin
        :param disable_notification: Bool: Pass True, if it is not necessary to send a notification
            to all group members about the new pinned message
        :return:
        """
        return apihelper.pin_chat_message(self.token, chat_id, message_id, disable_notification)