Type Alias BoxFuture 

pub type BoxFuture<'a, T> = Pin<Box<dyn Future<Output = T> + Send + 'a>>;

Available on crate feature alloc only.

An owned dynamically typed Future for use in cases where you can’t statically type your result or need to add some indirection.

This type is often created by the boxed method on FutureExt. See its documentation for more.

Aliased Type

#[repr(transparent)]
pub struct BoxFuture<'a, T> { /* private fields */ }