code: public function decodeValue(DecodePropertyValueForWidgetEvent $event)
      {
          if (!$this->wantToHandle($event)) {
              return;
          }
  
          $metaModel = $this->getMetaModelFromModel($event->getModel());
  
          $values = Helper::decodeLangArray($event->getValue(), $metaModel);
  
          $event->setValue(unserialize($values));
      }
docs: Decode the title value.
  
  @param DecodePropertyValueForWidgetEvent $event The event.
  
  @return void