class UserModel { final int id; final String name; final String email; UserModel({required this.id, required this.name, required this.email}); factory UserModel.fromJson(Map json) { return UserModel( id: json['id'], name: json['name'], email: json['email'], ); } Map toJson() { return { 'id': id, 'name': name, 'email': email, }; } }