class RoomModel {
  RoomModel({
    required this.id,
    required this.isGroup,
    this.name,
    this.lastBody,
    this.lastAt,
  });

  final String id;
  final bool isGroup;
  final String? name;
  final String? lastBody;
  final String? lastAt;

  factory RoomModel.fromJson(Map<String, dynamic> j) {
    return RoomModel(
      id: j['id'] as String,
      isGroup: (j['is_group'] as int? ?? 0) == 1,
      name: j['name'] as String?,
      lastBody: j['last_body'] as String?,
      lastAt: j['last_at'] as String?,
    );
  }
}