@abc.abstractmethod<EOL><INDENT>def register_for_deleted_items(self):<DEDENT>
pass<EOL>
Registers for notification of deleted assessment items.

        ``ItemReceiver.deletedItems()`` is invoked when an assessment
        item is removed from the assessment bank.

        :raise: ``OperationFailed`` -- unable to complete request
        :raise: ``PermissionDenied`` -- authorization failure occurred

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