public Money CalculateShippingPrice(EntitiesV2.Shipment shipment)
        {
            ValidateForShipping(shipment);
            var quantity = shipment.OrderLines.Sum(orderLine => orderLine.Quantity);

            return(new Money(quantity * _multiplier, shipment.PurchaseOrder.BillingCurrency));
        }
 public bool ValidateForShipping(EntitiesV2.Shipment shipment)
 {
     return(true);
 }