/**
  * Retrieve Selection attributes
  *
  * @param \Magento\Framework\DataObject $item
  * @return mixed
  */
 public function getSelectionAttributes($item)
 {
     if ($item instanceof \Magento\Sales\Model\Order\Item) {
         $options = $item->getProductOptions();
     } else {
         $options = $item->getOrderItem()->getProductOptions();
     }
     if (isset($options['bundle_selection_attributes'])) {
         return unserialize($options['bundle_selection_attributes']);
     }
     return null;
 }