copyWith method
Implementation
ArticleRetailOnTicket copyWith({
  int? calibreId,
  int? id,
  String? designation,
  num? price,
  num? cost,
  double? unitsInOnePiece,
  bool? status,
}) {
  return ArticleRetailOnTicket(
    kind: ArticleKind.retail,
    calibreId: calibreId ?? this.calibreId,
    id: id ?? this.id,
    designation: designation ?? this.designation,
    price: price ?? this.price,
    cost: cost ?? this.cost,
    unitsInOnePiece: unitsInOnePiece ?? this.unitsInOnePiece,
    status: status ?? this.status,
  );
}