Wallet Checkout Session Response
constructor(sessionId: String, secureCode: String, createdAt: Calendar?, expiresAt: Calendar, paymentBoundAt: Calendar?, status: WalletCheckoutSessionStatus?, brand: String?, redirectUrl: String?, walletCheckoutPageUrl: String?, merchantRefNum: String?, amount: Long?, currencyCode: String?, returnUrl: String, recipient: WalletCheckoutRecipient?, sender: WalletCheckoutSender, payment: WalletCheckoutSessionPayment?, lineItems: List<WalletCheckoutLineItem>)