!incorrect-protocol-member! PKPaymentAuthorizationViewControllerDelegate::paymentAuthorizationViewController:didAuthorizePayment:completion: is OPTIONAL and should NOT be abstract
!incorrect-protocol-member! PKPaymentAuthorizationControllerDelegate::paymentAuthorizationController:didAuthorizePayment:completion: is OPTIONAL and should NOT be abstract
!incorrect-protocol-member! PKPaymentAuthorizationViewControllerDelegate::paymentAuthorizationViewControllerWillAuthorizePayment: is OPTIONAL and should NOT be abstract