@abc.abstractmethod<EOL><INDENT>def new_items(self, notification_id, item_ids):<DEDENT>
pass<EOL>
The callback for notifications of new items.

        :param notification_id: the notification ``Id``
        :type notification_id: ``osid.id.Id``
        :param item_ids: the Id of the new ``Items``
        :type item_ids: ``osid.id.IdList``


        *compliance: mandatory -- This method must be implemented.*