PKPaymentRequestShippingContactUpdate
An object that updates the payment request after the shipping contact information changes.
Declaration
class PKPaymentRequestShippingContactUpdateOverview
This is the handler for paymentAuthorizationController(_:didSelectShippingContact:handler:) and paymentAuthorizationViewController(_:didSelectShippingContact:handler:).
Use this object to update the available shipping methods and, if the user has selected a shipping method, the current shipping cost.