Trait Apply2Ops
moreops
pub trait Apply2Ops<A1, A2> { fn apply<R, F: FnOnce(A1, A2) -> R>(self, f: F) -> R; }
fn apply<R, F: FnOnce(A1, A2) -> R>(self, f: F) -> R
impl<A1, A2> Apply2Ops<A1, A2> for (A1, A2)