def register_for_changed_family(self, family_id=None):
pass<EOL>
Registers for notification of an updated family.

        ``FamilyReceiver.changedFamily()`` is invoked when the specified
        family is changed.

        arg:    family_id (osid.id.Id): the ``Id`` of the ``Family`` to
                monitor
        raise:  NullArgument - ``family_id`` is ``null``
        raise:  OperationFailed - unable to complete request
        raise:  PermissionDenied - authorization failure
        *compliance: mandatory -- This method must be implemented.*