Decorator in Dependency Injection

    public interface IReportServer    {        void PrintReport();    }    public class ReportService : IReportServer    {        public void PrintReport()        {            Console.WriteLine("Printing...");        }    }    public class ReportServiceWithLogging : IReportServer    {        private readonly IReportServer reportServer;        public ReportServiceWithLogging(IReportServer reportServer)        {            this.reportServer = reportServer;        }        public void PrintReport()        {            Console.WriteLine("Begining.");            reportServer.PrintReport();            Console.WriteLine("Ending.");        }    }    class Program    {        static void Main(string[] args)        {            var container = new ContainerBuilder();            container.RegisterType<ReportService>().Named<IReportServer>("report");            container.RegisterDecorator<IReportServer>(                (context,server)=>new ReportServiceWithLogging(server), "report"                );            using (var cb=container.Build())            {                var report= cb.Resolve<IReportServer>();                report.PrintReport();            }        }    }