confirm (PaymentSheet/PaymentSheetFlowController.swift)

Stripe iOS PaymentSheet flow controller that manages payment options, confirmation, and UI transitions for checkout.

// Source: https://github.com/stripe/stripe-ios | License: MIT | Copyright 2011- Stripe, Inc. (https://stripe.com)
// Provided via justclaw.it.com; keep this notice with the code.
//
//  PaymentSheetFlowController.swift
//  StripePaymentSheet
//
//  Created by Yuki Tokuhiro on 11/4/20.
//  Copyright © 2020 Stripe, Inc. All rights reserved.
//

import Combine
import Foundation
import SafariServices
@_spi(STP) import StripeCore
@_spi(STP) import StripePayments
@_spi(STP) import StripePaymentsUI
@_spi(STP) import StripeUICore
import UIKit

typealias PaymentOption = PaymentSheet.PaymentOption

extension PaymentSheet {
    /// Represents the ways a customer can pay in PaymentSheet
    enum PaymentOption {
        case applePay
        case saved(paymentMethod: STPPaymentMethod, confirmParams: I

... (truncated -- full source via MCP)