pub fn join5<Fut1, Fut2, Fut3, Fut4, Fut5>(
future1: Fut1,
future2: Fut2,
future3: Fut3,
future4: Fut4,
future5: Fut5
) -> Join5<Fut1, Fut2, Fut3, Fut4, Fut5> ⓘwhere
Fut1: Future,
Fut2: Future,
Fut3: Future,
Fut4: Future,
Fut5: Future,