slarny4/Demo1/Data/RemoteData/RemoteDataBase/DAO/Group.cs

// Group.cs в RemoteData/RemoteDataBase/DAO
namespace Demo.Data.RemoteData.RemoteDataBase.DAO
{
    public class GroupDAO
    {
        public int Id { get; set; }
        public string Name { get; set; } = string.Empty;
        public UserDAO User { get; set; }
    }
}