@abc.abstractmethod<EOL><INDENT>def get_commenting_agent_search_order(self):<DEDENT>
return<EOL>
Gets the agent order interface.

        :return: the agent search order interface
        :rtype: ``osid.authentication.AgentSearchOrder``
        :raise: ``Unimplemented`` -- ``supports_commenting_agent_search_order()`` is ``false``

        *compliance: optional -- This method must be implemented if
        ``supports_commenting_agent_search_order()`` is ``true``.*