AcornPublishing_essential-csharp-7e/EssentialCSharp-8.0/src/Chapter18/Listing18.13.DefiningACustomAttribute.cs
namespace AddisonWesley.Michaelis.EssentialCSharp.Chapter18.Listing18_13
{
    using System;

    public class CommandLineSwitchRequiredAttribute : Attribute
    {
    }
}
