@abc.abstractmethod<EOL><INDENT>def get_schedules_by_genus_type(self, schedule_genus_type):<DEDENT>
return<EOL>
Gets a ``ScheduleList`` corresponding to the given schedule genus ``Type`` which does not include schedule of
        genus types derived from the specified ``Type``.

        In plenary mode, the returned list contains all known schedule
        or an error results. Otherwise, the returned list may contain
        only those schedule that are accessible through this session.

        :param schedule_genus_type: a schedule genus type
        :type schedule_genus_type: ``osid.type.Type``
        :return: the returned ``Schedule`` list
        :rtype: ``osid.calendaring.ScheduleList``
        :raise: ``NullArgument`` -- ``schedule_genus_type`` is ``null``
        :raise: ``OperationFailed`` -- unable to complete request
        :raise: ``PermissionDenied`` -- authorization failure

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