CardData constructor Null safety

CardData(
  1. {required int pan,
  2. required String expDate,
  3. required String cvv,
  4. String? cardHolder,
  5. String? eci,
  6. String? cavv}
)

Создает экземпляр данных кард

Implementation

CardData({
  required this.pan,
  required this.expDate,
  required this.cvv,
  this.cardHolder,
  this.eci,
  this.cavv,
});