code: public function handle(GetPropertyOptionsEvent $event)
      {
          if (!($this->wantToHandle($event) && ($event->getPropertyName() === 'rte'))) {
              return;
          }
  
          $configs = [];
          // Delete 'be_' prefix from keys.
          foreach ($this->templateList->getTemplatesForBase('be_tiny') as $key => $value) {
              $configs[substr($key, 3)] = $value;
          }
  
          $event->setOptions($configs);
      }
docs: Retrieve the options for the attributes.
  
  @param GetPropertyOptionsEvent $event The event.
  
  @return void