public function on_gradebook_grade_outcomes_start() {

        $syscontextid  = $this->converter->get_contextid(CONTEXT_SYSTEM);
        $this->fileman = $this->converter->get_file_manager($syscontextid, 'grade', 'outcome');

        $this->open_xml_writer('outcomes.xml');
        $this->xmlwriter->begin_tag('outcomes_definition');
    }