using System;

using Newtonsoft.Json;

using UnitsNet;

public class Program

{

    public static void Main()

    {

​

        var person = new Person()

        {

            Name = "Davey Jones",

            Age = 42,

            BodyMass = Mass.FromStonePounds(12, 5),

            Height = Length.FromFeetInches(5, 10),

            TopSpeed = Speed.FromMilesPerHour(7),

            Acceleration = Acceleration.FromFeetPerSecondSquared(12),

        };

​

        string json = JsonConvert.SerializeObject(person, Formatting.Indented);

        Console.WriteLine(json);

    }

}

​

public class Person

    {

        public Acceleration Acceleration { get; set; }

        public int Age { get; set; }

        public Mass BodyMass { get; set; }

        public Length Height { get; set; }

​

        public string Name { get; set; }

        public Speed TopSpeed { get; set; }

​

    }