AcornPublishing_essential-csharp-7e/EssentialCSharp-8.0/src/Chapter05/Listing05.10.DeclaringATypeAlias.cs
#pragma warning disable CS0168 // Variable is declared but never used
namespace AddisonWesley.Michaelis.EssentialCSharp.Chapter05.Listing05_10
{
    using CountDownTimer = System.Threading.Timer;

    public class HelloWorld
    {
        public static void Main()
        {
            CountDownTimer timer;

            // ...
        }
    }
}
