@abc.abstractmethod<EOL><INDENT>def get_grade_system_query_from_inspector(self, grade_system_query_inspector):<DEDENT>
return<EOL>
Gets a grade system query from an inspector.

        :param grade_system_query_inspector: a grade system query inspector
        :type grade_system_query_inspector: ``osid.grading.GradeSystemQueryInspector``
        :return: the grade system query
        :rtype: ``osid.grading.GradeSystemQuery``
        :raise: ``NullArgument`` -- ``grade_system_query_inspector`` is ``null``
        :raise: ``Unsupported`` -- ``grade_system_query_inspector`` is not of this service

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