@abc.abstractmethod<EOL><INDENT>def get_depot_search_session(self):<DEDENT>
return<EOL>
Gets the OsidSession associated with the depot search service.

        :return: a ``DepotSearchSession``
        :rtype: ``osid.installation.DepotSearchSession``
        :raise: ``OperationFailed`` -- unable to complete request
        :raise: ``Unimplemented`` -- ``supports_depot_search() is false``

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