/**
  * Return the Survey Before Answering event (if any)
  *
  * @return \Gems_Event_SurveyBeforeAnsweringEventInterface event instance or null
  */
 public function getSurveyBeforeAnsweringEvent()
 {
     if ($this->_gemsSurvey['gsu_beforeanswering_event']) {
         return $event = $this->events->loadSurveyBeforeAnsweringEvent($this->_gemsSurvey['gsu_beforeanswering_event']);
     }
 }