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