@abc.abstractmethod<EOL><INDENT>def search_among_grade_entries(self, grade_entry_ids):<DEDENT>
pass<EOL>
Execute this search among the given list of grade entries.

        :param grade_entry_ids: list of grade entries
        :type grade_entry_ids: ``osid.id.IdList``
        :raise: ``NullArgument`` -- ``grade_entry_ids`` is ``null``

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