using System;

using Microsoft.OpenApi.Models;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Hello World");

        OpenApiParameter param = new OpenApiParameter();

        param.Schema = new OpenApiSchema();

        param.Schema.Reference = new OpenApiReference();

        param.Schema.Reference.Id = "ffkd";

        if(param.Schema?.Reference?.Id == "ffkd")

        {

            Console.WriteLine("True");

        }

        else

        {

            Console.WriteLine("False");

        }

    }

}