similar to Kovenant `Promise<V, Exception>` ...

# result

[apatrida]

similar to Kovenant Promise<V, Exception> but a small difference in flatMap vs. unwrap, … and having errors go through the chain to pop out in failure or always lambda. Your chained version doesn’t show the error handling btw, would be good if you translated that into the functional version. Why not sync up with @mplatvoet of Kovenant fame so that Results and Promises could have unified API’s where equivalent?