Function pipe 

pub fn pipe<A, B, M1, M2, E1, E2>(a: A, b: B) -> Pipe 
where
    A: Transport<M1, M2, E1> + Unpin,
    B: Transport<M2, M1, E2> + Unpin,
    M1: Message,
    M2: Message,
    E1: Error,
    E2: Error,

Available on crate feature pipe only.

Pipe messages from one transport into another and vice versa.

Pipe created with this function ignores errors.