@abc.abstractmethod<EOL><INDENT>def match_any_superseded_date(self, match):<DEDENT>
pass<EOL>
Matches a superseding event that has any superseded date.

        :param match: ``true`` to match superseding events with any superseded date, false to match superseding events
        with no superseded date
        :type match: ``boolean``


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