StopWatchProxy

public static class StopWatchProxy
    {
        public static StopWatchProxyResultWithValue<T> Handle<T>(Func<T> lambda)
        {
            var stopWatch = new Stopwatch();
            stopWatch.Start();
            var result = lambda();
            stopWatch.Stop();
            return StopWatchProxyResultWithValue<T>.FromStopWatch(result, stopWatch);
        }

        public static StopWatchProxyResult Handle(Action lambda)
        {
            var stopWatch = new Stopwatch();
            stopWatch.Start();
            lambda();
            stopWatch.Stop();
            return StopWatchProxyResult.FromStopWatch(stopWatch);
        }
    }

    public class StopWatchProxyResult
    {
        public TimeSpan Elapsed { get; set; }
        public long ElapsedTicks { get; set; }
        public long ElapsedMilliseconds { get; set; }

        public static StopWatchProxyResult FromStopWatch(Stopwatch stopWatch)
            => new StopWatchProxyResult
            {
                Elapsed = stopWatch.Elapsed,
                ElapsedMilliseconds = stopWatch.ElapsedMilliseconds,
                ElapsedTicks = stopWatch.ElapsedTicks
            };
    }

    public class StopWatchProxyResultWithValue<T> : StopWatchProxyResult
    {
        public T Result { get; set; }

        public static StopWatchProxyResultWithValue<T> FromStopWatch(T result, Stopwatch stopWatch)
            => new StopWatchProxyResultWithValue<T>
            {
                Result = result,
                Elapsed = stopWatch.Elapsed,
                ElapsedMilliseconds = stopWatch.ElapsedMilliseconds,
                ElapsedTicks = stopWatch.ElapsedTicks
            };
    }