Function retry_notify_with_deadline 

pub async fn retry_notify_with_deadline<I, E, Fn, Fut, B, N>(
    backoff: B,
    operation: Fn,
    notify: N,
    deadline: &mut Receiver<bool>,
) -> Result<I>
where
    E: Error + Send + Sync + 'static,
    B: Backoff,
    Fn: FnMut() -> Fut,
    Fut: Future<Output = Result<I, Error<E>>>,
    N: Notify<E>,