frames-ios | Frames iOS : making native card payments | Ecommerce library

class ViewController: UIViewController, CardViewControllerDelegate {

    // Create a CheckoutAPIClient instance with your public key.
    let checkoutAPIClient = CheckoutAPIClient(
        publicKey: "",
        environment: .sandbox)

    override   

let cardNumber = "4242 | 4242 | 4242 | 4242 "
let standardizedCardNumber = cardUtils.standardize(cardNumber: cardNumber)
print(standardizedCardNumber) // "4242424242424242"

// Create a CheckoutAPIClient instance with your public key.
let checkoutAPI  

// Create a CheckoutAPIClient instance with your public key.
let checkoutAPIClient = CheckoutAPIClient(
    publicKey: "",
    environment: .sandbox)

let phoneNumber = CkoPhoneNumber(
    countryCode: "44",
    number: "7700900000")

let address = C