@abc.abstractmethod<EOL><INDENT>def changed_parameters(self, notification_id, parameter_ids):<DEDENT>
pass<EOL>
The callback for notification of updated parameters.

        :param notification_id: the notification Id
        :type notification_id: ``osid.id.Id``
        :param parameter_ids: the ``Ids`` of the updated ``Parameters``
        :type parameter_ids: ``osid.id.IdList``


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