copyWith method
Implementation
Item copyWith({
String? name,
double? price,
double? quantity,
double? sum,
String? measurementUnit,
String? paymentMethod,
String? paymentObject,
Vat? vat,
}) =>
Item(
name: name ?? this.name,
price: price ?? this.price,
quantity: quantity ?? this.quantity,
sum: sum ?? this.sum,
measurementUnit: measurementUnit ?? this.measurementUnit,
paymentMethod: paymentMethod ?? this.paymentMethod,
paymentObject: paymentObject ?? this.paymentObject,
vat: vat ?? this.vat,
);