Json.NET: handling abstract types

gistfile1.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Newtonsoft.Json;

namespace jsonabstract
{
    class Program
    {
        static void Test<T>(T value)
        {
            var settings = new JsonSerializerSettings { TypeNameHandling = TypeNameHandling.Objects };
            Console.WriteLine("Serializing {0}", value);
            string json = JsonConvert.SerializeObject(value, settings);
            Console.WriteLine("  {0}", json);
            
            T obj = JsonConvert.DeserializeObject<T>(json, settings);
            Console.WriteLine("  {0}", obj);
        }
        static void Main(string[] args)
        {
            Msg m1 = new MsgA{AProp = "asd", Name = "Msg A"};
            Test(m1);
            Msg m2 = new MsgB{BProp = 42, Name = "Msg B"};
            Test(m2);
            Console.ReadLine();
            
        }
    }

    abstract class Msg { public string Name { get; set; } }

    class MsgA : Msg
    {
        public string AProp { get; set; }
    }
    class MsgB : Msg
    {
        public int BProp { get; set; }
    }
}