@utilities.arguments_not_none<EOL><INDENT>def order_objective_results(self, objective_search_order):<DEDENT>
raise errors.Unimplemented()<EOL>
Specify an ordering to the search results.

        arg:    objective_search_order
                (osid.learning.ObjectiveSearchOrder): objective search
                order
        raise:  NullArgument - ``objective_search_order`` is ``null``
        raise:  Unsupported - ``objective_search_order`` is not of this
                service
        *compliance: mandatory -- This method must be implemented.*