@abc.abstractmethod<EOL><INDENT>def order_map_results(self, map_search_order):<DEDENT>
pass<EOL>
Specify an ordering to the search results.

        :param map_search_order: map search order
        :type map_search_order: ``osid.mapping.MapSearchOrder``
        :raise: ``NullArgument`` -- ``map_search_order`` is ``null``
        :raise: ``Unsupported`` -- ``map_search_order`` is not of this service

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