PassKit watchOS 4.0 Beta 2 to Beta 3 API Differences

PKError.h
Removed NSError (PKError)
Removed +[NSError paymentContactInvalidErrorWithContactField:localizedDescription:]
Removed +[NSError paymentShippingAddressInvalidErrorWithKey:localizedDescription:]
Removed +[NSError paymentBillingAddressInvalidErrorWithKey:localizedDescription:]
Removed +[NSError paymentShippingAddressUnserviceableErrorWithLocalizedDescription:]
PKPaymentAuthorizationController.h
Modified -[PKPaymentAuthorizationControllerDelegate paymentAuthorizationController:didAuthorizePayment:handler:]
Optional
FromRequired
ToOptional

PKPaymentRequest.h
Added +[PKPaymentRequest paymentContactInvalidErrorWithContactField:localizedDescription:]
Added +[PKPaymentRequest paymentShippingAddressInvalidErrorWithKey:localizedDescription:]
Added +[PKPaymentRequest paymentBillingAddressInvalidErrorWithKey:localizedDescription:]
Added +[PKPaymentRequest paymentShippingAddressUnserviceableErrorWithLocalizedDescription:]