def register_for_deleted_relationships(self):
pass<EOL>
Registers for notification of deleted relationships.

        ``RelationshipReceiver.deletedRelationship()`` is invoked when a
        relationship is deleted or removed from this family.

        raise:  OperationFailed - unable to complete request
        raise:  PermissionDenied - authorization failure
        *compliance: mandatory -- This method must be implemented.*