protected function add_assessment_item(ImsQtiWriter $writer, $question)
 {
     $identifier = self::question_identifier($question);
     $lang = MoodleUtil::get_current_language();
     $label = $question->qtype;
     $toolname = self::get_tool_name();
     $toolversion = Qti::get_tool_version();
     $result = $writer->add_assessmentItem($identifier, $question->name, true, false, $label, $lang, $toolname, $toolversion);
     return $result;
 }