@abc.abstractmethod<EOL><INDENT>def get_schedule_query(self, match):<DEDENT>
return<EOL>
Gets the query for the schedule.

        Each retrieval performs a boolean ``OR``.

        :param match: ``true`` if for a positive match, ``false`` for a negative match
        :type match: ``boolean``
        :return: the schedule query
        :rtype: ``osid.calendaring.ScheduleQuery``
        :raise: ``Unimplemented`` -- ``supports_schedule_query()`` is ``false``

        *compliance: optional -- This method must be implemented if
        ``supports_schedule_query()`` is ``true``.*