@abc.abstractmethod<EOL><INDENT>def register_for_changed_grade_entries_for_resource(self, resource_id):<DEDENT>
pass<EOL>
Registers for notification of an updated grade entry for the specified key resource.

        ``GradeEntryReceiver.changedGradeEntries()`` is invoked when an
        entry for the resource is updated.

        :param resource_id: the ``Id`` of the ``Resource`` to monitor
        :type resource_id: ``osid.id.Id``
        :raise: ``NullArgument`` -- ``resource_id is null``
        :raise: ``OperationFailed`` -- unable to complete request
        :raise: ``PermissionDenied`` -- authorization failure

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