@abc.abstractmethod<EOL><INDENT>def register_for_deleted_superseding_events(self):<DEDENT>
pass<EOL>
Registers for notification of deleted superseding events.

        ``SupersedingEventReceiver.deletedSupersedingEvents()`` is
        invoked when a superseding event is removed from this calendar.

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

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