@abc.abstractmethod<EOL><INDENT>def get_repository_search_order(self):<DEDENT>
return<EOL>
Gets a repository search order.

        The ``RepositorySearchOrder`` is supplied to a
        ``RepositorySearch`` to specify the ordering of results.

        :return: the repository search order
        :rtype: ``osid.repository.RepositorySearchOrder``


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