using System;

using System.Collections.Generic;

using Newtonsoft.Json;

​

public class Program

{

    public static void Main()

    {

        var Bar = new {num = 0};

        var Baz = new {values = new List<int>()};

        var Foo = new {Bar, Baz};

        Console.WriteLine(JsonConvert.SerializeObject(Foo));

        Console.WriteLine(JsonConvert.SerializeObject( new Foo()));

    }

    public class Foo

    {

        public object Bar = new {num = 0};

        public object Baz = new {values = new List<int>()};

    }

​

}

​

​