import 'package:json_annotation/json_annotation.dart'; import 'data.dart'; part 'space.g.dart'; @JsonSerializable() class Space { int? code; String? message; int? ttl; Data? data; Space({this.code, this.message, this.ttl, this.data}); factory Space.fromJson(Map json) => _$SpaceFromJson(json); Map toJson() => _$SpaceToJson(this); }