class AnnouncementModel { final String id; final String uniqueId; final List sentTo; final String message; final DateTime createdAt; final DateTime updatedAt; AnnouncementModel({ required this.id, required this.uniqueId, required this.sentTo, required this.message, required this.createdAt, required this.updatedAt, }); factory AnnouncementModel.fromJson(Map json) { return AnnouncementModel( id: json['_id']??"", uniqueId: json['uniqueId']??"", sentTo: List.from(json['sentTo']), message: json['message']??"", createdAt: DateTime.parse(json['createdAt']), updatedAt: DateTime.parse(json['updatedAt']), ); } }