import 'package:freezed_annotation/freezed_annotation.dart'; import 'package:flutter/foundation.dart'; part 'time.freezed.dart'; part 'time.g.dart'; @freezed class ServerTime with _$ServerTime { const ServerTime._(); const factory ServerTime({@JsonKey(name: 'utc') @Default('') String utc}) = _ServerTime; factory ServerTime.fromJson(Map json) => _$ServerTimeFromJson(json); }