using System;

                    using System.Runtime.CompilerServices;

public class Program

{

      [UnsafeAccessor(UnsafeAccessorKind.Method, Name = "get_IsDisposed")]

  private static extern ref bool IsDisposed(global::Autofac.Core.Lifetime.LifetimeScope @this);

    public static void Main()

    {

        IsDisposed(null);

        Console.WriteLine("Hello World");

    }

}