private function handleEventResult($result)
 {
     if (is_array($result)) {
         $resp = [];
         foreach ($result as $res) {
             $resp[] = ['code' => $res, 'msg' => ResponseCode::getMessageFromCode($res)];
         }
         return [$resp, 200];
     }
     if ($result === ResponseCode::CHILDREN_NOT_FOUND) {
         return [ResponseCode::getMessageFromCode(ResponseCode::CHILDREN_NOT_FOUND), 404];
     }
     return [ResponseCode::getMessageFromCode(ResponseCode::UNKNOWN_RESPONSE), 400];
 }