using System;

public class Program

{

    public record class Payload(string Content);

    public record class Response(object Payload);

    public static void Main()

    {

        var resp1 = new Response(new Payload("content"));

        var resp2 = new Response(null);

        Response resp3 = null;

        if(resp1?.Payload is Payload pay1)

            Console.WriteLine("Got Payload");

        else

            Console.WriteLine("Got Null");

        if(resp2?.Payload is Payload pay2)

            Console.WriteLine("Got Payload");

        else

            Console.WriteLine("Got Null");

        if(resp3?.Payload is Payload pay3)

            Console.WriteLine("Got Payload");

        else

            Console.WriteLine("Got Null");

    }

}