def register_for_new_relationships(self):
pass<EOL>
Register for notifications of new relationships.

        ``RelationshipReceiver.newRelationship()`` is invoked when a new
        ``Relationship`` appears in this family.

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