import 'package:json_annotation/json_annotation.dart'; import 'car_dto.dart'; part 'delivery_dto.g.dart'; @JsonSerializable(explicitToJson: true) class DeliveryDTO { @JsonKey(name: 'amount_deliveries') final int amountDeliveries; final CarDTO car; DeliveryDTO({ required this.amountDeliveries, required this.car, }); factory DeliveryDTO.fromJson(Map json) => _$DeliveryDTOFromJson(json); Map toJson() => _$DeliveryDTOToJson(this); }