class ApiResponse { const ApiResponse({required this.status, required this.message}); final String status; final String message; bool get isOk => status == 'ok'; factory ApiResponse.fromJson(Map json) { return ApiResponse( status: json['status'] as String? ?? 'error', message: json['message'] as String? ?? '', ); } Map toJson() { return { 'status': status, 'message': message, }; } }