code: public function renderRichResponseItem()
      {
          $out = [];
          $carouselBrowse = [];
  
          if ($this->imageDisplayOptions) {
              $carouselBrowse['imageDisplayOptions'] = $this->imageDisplayOptions;
          }
  
          $items = [];
          foreach ($this->options as $option) {
              $items[] = $option->render();
          }
  
          $carouselBrowse['items'] = $items;
  
          $out['carouselBrowse'] = $carouselBrowse;
  
          return $out;
      }
docs: Render a single Rich Response item as array.
  
  @return null|array