CheckoutTokenResponse constructor Null safety
- String? name,
- int? expiryMonth,
- int? expiryYear,
- String? token,
- String? expiresOn,
- String? scheme,
- String? lastFour,
- String? bin,
- String? cardType,
- String? cardCategory,
- String? issuer,
- String? issuerCountry,
- String? productID,
- String? productType,
- {String? type = CheckoutTokenResponse.CARD,
- CheckoutBillingAddress? billingAddress,
- CheckoutPhone? phone}