def promote_chat_member(self, chat_id, user_id, can_change_info=None, can_post_messages=None,
                            can_edit_messages=None, can_delete_messages=None, can_invite_users=None,
                            can_restrict_members=None, can_pin_messages=None, can_promote_members=None):
        """
        Use this method to promote or demote a user in a supergroup or a channel. The bot must be an administrator
        in the chat for this to work and must have the appropriate admin rights.
        Pass False for all boolean parameters to demote a user. Returns True on success.
        :param chat_id: Unique identifier for the target chat or username of the target channel (
            in the format @channelusername)
        :param user_id: Int : Unique identifier of the target user
        :param can_change_info: Bool: Pass True, if the administrator can change chat title, photo and other settings
        :param can_post_messages: Bool : Pass True, if the administrator can create channel posts, channels only
        :param can_edit_messages: Bool : Pass True, if the administrator can edit messages of other users, channels only
        :param can_delete_messages: Bool : Pass True, if the administrator can delete messages of other users
        :param can_invite_users: Bool : Pass True, if the administrator can invite new users to the chat
        :param can_restrict_members: Bool: Pass True, if the administrator can restrict, ban or unban chat members
        :param can_pin_messages: Bool: Pass True, if the administrator can pin messages, supergroups only
        :param can_promote_members: Bool: Pass True, if the administrator can add new administrators with a subset
            of his own privileges or demote administrators that he has promoted, directly or indirectly
            (promoted by administrators that were appointed by him)
        :return:
        """
        return apihelper.promote_chat_member(self.token, chat_id, user_id, can_change_info, can_post_messages,
                                             can_edit_messages, can_delete_messages, can_invite_users,
                                             can_restrict_members, can_pin_messages, can_promote_members)