Function carboxyl::lift::lift2

pub fn lift2<A, B, C, F>(f: F, sa: &Signal<A>, sb: &Signal<B>) -> Signal<C> where A: Send + Sync + Clone + 'static, B: Send + Sync + Clone + 'static, C: Send + Sync + Clone + 'static, F: Fn(A, B) -> C + Send + Sync + 'static

Lift a binary function.