WellCommerce\Bundle\OrderBundle\Entity\OrderInterface::getModifier PHP Метод

    public function getModifier(string $name) : OrderModifierInterface;

 private function createDetails(OrderInterface $order) : Details
 {
     $shippingCosts = $order->getModifier('shipping_cost');
     $details = new Details();
     $details->setShipping($shippingCosts->getNetAmount());
     $details->setTax($order->getSummary()->getTaxAmount());
     $details->setSubtotal($order->getProductTotal()->getNetPrice());
     return $details;
 }