@abc.abstractmethod<EOL><INDENT>def get_superseding_event_search_order(self):<DEDENT>
return<EOL>
Gets a superseding event search order.

        The ``SupersedingEventSearchOrder`` is supplied to a
        ``SupersedingEventSearch`` to specify the ordering of results.

        :return: the superseding event search order
        :rtype: ``osid.calendaring.SupersedingEventSearchOrder``


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