/**
  * Performs all processes to be performed after the order creation.
  *
  * Flushes all loaded order and related entities.
  *
  * @param CartInterface $cart Cart
  */
 public function loadCartShippingAmount(CartInterface $cart)
 {
     $shippingMethodId = $cart->getShippingMethod();
     if (empty($shippingMethodId)) {
         return;
     }
     $shippingMethod = $this->shippingWrapper->getOneById($cart, $shippingMethodId);
     if ($shippingMethod instanceof ShippingMethod) {
         $cart->setShippingAmount($shippingMethod->getPrice());
     }
 }