Type Alias EventOutcome 

pub type EventOutcome = Result<Option<AppEvent>, KeyEvent>;

What App::handle did: Ok carries a follow-up event; Err returns a key that arrived while busy, untouched, for the caller to offer again when idle.

Aliased Type

pub enum EventOutcome {
    Ok(Option<AppEvent>),
    Err(KeyEvent),
}

Variants

Ok(Option<AppEvent>)

Contains the success value

Err(KeyEvent)

Contains the error value