/** * Returns data to be serialized on top of the QTI format. * Made of the question's object minus fields that don't have a meaning in another system. * * Remove question's fields which don't have a meaning in another system. * For example question id, user id, etc * * @param object $question * @return object */ protected function get_question_data($question) { $result = parent::get_question_data($question); return $result; }