JsonConverter Error

[oyen-bright]

`part of 'vehicle_cubit.dart';

@freezed
class VehicleState with _$VehicleState {
const factory VehicleState.initial(
@VehicleQueryOptionsConverter() VehicleQueryOptions myResponse) =
_Initial;

const factory VehicleState.loading({
required List vehicles,
required @VehicleQueryOptionsConverter() VehicleQueryOptions queryOptions,
}) = _Loading;

const factory VehicleState.loaded({
required List vehicles,
required List filteredVehicles,
required VehicleQueryOptions queryOptions,
}) = _Loaded;

const factory VehicleState.error({
String? message,
List? vehicles,
required VehicleQueryOptions queryOptions,
}) = _Error;

factory VehicleState.fromJson(Map<String, dynamic> json) =>
_$VehicleStateFromJson(json);
}

class VehicleQueryOptionsConverter
implements JsonConverter<VehicleQueryOptions, Map<String, dynamic>> {
const VehicleQueryOptionsConverter();

@OverRide
VehicleQueryOptions fromJson(Map<String, dynamic> json) =>
VehicleQueryOptions.fromMap(json);

@OverRide
Map<String, dynamic> toJson(VehicleQueryOptions options) =>
options.toJson() as Map<String, dynamic>;
}
`
How do i use the VehicleQueryOptionsConverter the use case is not the doc.

[oyen-bright]

// ignore_for_file: public_member_api_docs, sort_constructors_first
import 'dart:convert';

class VehicleQueryOptions {
final List? brand;
final List? type;
final List? capacity;
final String? min;
final String? max;

VehicleQueryOptions({
this.brand,
this.type,
this.capacity,
this.min,
this.max,
});

Map<String, dynamic> toMap() {
return <String, dynamic>{
'brand': brand,
'type': type,
'capacity': capacity,
'min': min,
'max': max,
};
}

factory VehicleQueryOptions.fromMap(Map<String, dynamic> map) {
return VehicleQueryOptions(
brand: map['brand'] != null
? List.from((map['brand'] as List))
: null,
type: map['type'] != null
? List.from((map['type'] as List))
: null,
capacity: map['capacity'] != null
? List.from((map['capacity'] as List))
: null,
min: map['min'] != null ? map['min'] as String : null,
max: map['max'] != null ? map['max'] as String : null,
);
}

String toJson() => json.encode(toMap());

factory VehicleQueryOptions.fromJson(String source) =>
VehicleQueryOptions.fromMap(json.decode(source) as Map<String, dynamic>);
}

[rrousselGit]

What's the problem? You only shared code. I'm not aware of what the issue is