copyWith method
Implementation
PaymentMethodDetails copyWith({
String? cardNumber,
int? expMonth,
int? expYear,
String? cvc,
}) {
return PaymentMethodDetails(
cardNumber: cardNumber ?? this.cardNumber,
expMonth: expMonth ?? this.expMonth,
expYear: expYear ?? this.expYear,
cvc: cvc ?? this.cvc,
);
}