class CommentModel {
  final String userId;
  final String userName;
  final String? userAvatar;
  final String text;
  final DateTime createdAt;

  CommentModel({
    required this.userId,
    required this.userName,
    this.userAvatar,
    required this.text,
    DateTime? createdAt,
  }) : createdAt = createdAt ?? DateTime.now();
}