Trait Boxable
boxfuture
pub trait Boxable<T, E> { fn to_boxed(self) -> BoxFuture<T, E>; }
fn to_boxed(self) -> BoxFuture<T, E>
impl<F, T, E> Boxable<T, E> for F where F: Future<Item = T, Error = E> + Send + 'static,