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

        The ``ProficiencySearchOrder`` is supplied to a
        ``ProficiencySearch`` to specify the ordering of results.

        :return: the proficiency search order
        :rtype: ``osid.learning.ProficiencySearchOrder``


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