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

        :param agent_search_order: agent search order
        :type agent_search_order: ``osid.authentication.AgentSearchOrder``
        :raise: ``NullArgument`` -- ``agent_search_order`` is ``null``
        :raise: ``Unsupported`` -- ``agent_search_order`` is not of this service

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