@abc.abstractmethod<EOL><INDENT>def inspect_offset_event_query(self):<DEDENT>
return<EOL>
Gets an offset event query inspector for this calendar.

        :return: the offset event query inspector
        :rtype: ``osid.calendaring.OffsetEventQueryInspector``
        :raise: ``OperationFailed`` -- unable to complete request
        :raise: ``PermissionDenied`` -- authorization failure occurred

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