using System;

using System.Text.Json;

public class Program

{

    public class Test

    {

        public string Something {get; set;}

        public string Other {get; set;}

    }

    public static void Main()

    {

        var test = JsonSerializer.Deserialize<Test>("{\"Something\": \"test\"}");

        Console.WriteLine("Something is " + test.Something);

        Console.WriteLine("Other is " + string.IsNullOrEmpty(test.Other));

    }

}