copyWith method
Создает экземпляр с заданными параметрами
Implementation
@override
AttachCardRequest copyWith({
String? requestKey,
String? cardData,
Map<String, String>? data,
String? signToken,
}) {
return AttachCardRequest(
requestKey: requestKey ?? this.requestKey,
cardData: cardData ?? this.cardData,
data: data ?? this.data,
signToken: signToken ?? this.signToken,
);
}