@abc.abstractmethod<EOL><INDENT>def get_items_by_record_type(self, item_record_type):<DEDENT>
return<EOL>
Gets an ``ItemList`` containing the given assessment item record ``Type``.

        In plenary mode, the returned list contains all known items or
        an error results. Otherwise, the returned list may contain only
        those assessment items that are accessible through this session.

        :param item_record_type: an item record type
        :type item_record_type: ``osid.type.Type``
        :return: the returned ``Item`` list
        :rtype: ``osid.assessment.ItemList``
        :raise: ``NullArgument`` -- ``item_record_type`` is ``null``
        :raise: ``OperationFailed`` -- unable to complete request
        :raise: ``PermissionDenied`` -- authorization failure occurred

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