/**
* 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;
}
