@abc.abstractmethod<EOL><INDENT>def get_recurring_events_by_parent_genus_type(self, recurring_event_genus_type):<DEDENT>
return<EOL>
Gets a ``RecurringEventList`` corresponding to the given recurring event genus ``Type`` and include any
        additional recurring event with genus types derived from the specified ``Type``.

        :param recurring_event_genus_type: a recurring event genus type
        :type recurring_event_genus_type: ``osid.type.Type``
        :return: the returned ``RecurringEvent`` list
        :rtype: ``osid.calendaring.RecurringEventList``
        :raise: ``NullArgument`` -- ``recurring_event_genus_type`` is ``null``
        :raise: ``OperationFailed`` -- unable to complete request
        :raise: ``PermissionDenied`` -- authorization failure

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