tlang-interperter-cs/tlanglib/TNull.cs

using Newtonsoft.Json.Linq;

namespace tlang
{
    public class TNull : TObject
    {
        public override bool AsBoolean => false;
        public override string ToString()
        {
            return "null";
        }
         public override JToken AsToken()
        {
            return JValue.CreateNull();
        }
    }
}