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

        ``OffsetEventReceiver.deletedOffsetEvents()`` is invoked when an
        offset event is removed from this calendar.

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

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