import "package:freezed_annotation/freezed_annotation.dart"; part "user.freezed.dart"; part "user.g.dart"; @Freezed(toJson: false, fromJson: false) @JsonSerializable() class const UserConfig({final String? roomId, required final String userId}) with _$UserConfig { Map toJson() => _$UserConfigToJson(this); factory UserConfig.fromJson(Map json) => _$UserConfigFromJson(json); }