Flutter：解压缩json GZ文件

Question

我需要解码GZ中的json文件的帮助。非常感谢您的支持！

class MangaData {
  static getHomeData() async {
    final response = await http.get(Database.mkUrl);
    List<MangaV1> popularManga = json
        .decode(response.body)['mangas']
        .map<MangaV1>((e) => MangaV1.fromJson(e))
        .toList();

    return {
      "popularManga": popularManga,
    };
  }