@abc.abstractmethod<EOL><INDENT>def get_rubric_search_order(self):<DEDENT>
return<EOL>
Gets an assessment offered search order.

        :return: a rubric assessment offered search order
        :rtype: ``osid.assessment.AssessmentOfferedSearchOrder``
        :raise: ``Unimplemented`` -- ``supports_rubric_search_order()`` is ``false``

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