class DynReactionItem { String? action; String? face; String? mid; String? name; DynReactionItem({ this.action, this.face, this.mid, this.name, }); factory DynReactionItem.fromJson(Map json) => DynReactionItem( action: json['action'] as String?, face: json['face'] as String?, mid: json['mid'] as String?, name: json['name'] as String?, ); }