fcs/lib/domain/entities/custom_duty.dart

class CustomDuty {
  String id;
  String productType;
  String desc;
  double fee;
  CustomDuty({this.id, this.productType, this.desc, this.fee});

  factory CustomDuty.fromMap(Map<String, dynamic> map, String id) {
    return CustomDuty(
      id: id,
      productType: map['product_type'],
      desc: map['desc'],
      fee: (map['fee'] ?? 0).toDouble(),
    );
  }

  Map<String, dynamic> toMap() {
    return {
      "id": id,
      'product_type': productType,
      'desc': desc,
      'fee': fee,
    };
  }

  @override
  bool operator ==(Object other) => other is CustomDuty && other.id == id;

  @override
  int get hashCode => id.hashCode;
}