Function smithy::unwrapped_promise_from_future

pub fn unwrapped_promise_from_future<S, E, impl Future + 'static>(
    future: impl Future + 'static
) -> UnwrappedPromise<S, E> where
    E: 'static,
    S: 'static,
    impl Future + 'static: 'static + Future<Item = S, Error = E>, 

Converts a future into an UnwrappedPromise, which causes the app to re-render when the future succeeds or fails.