Function carboxyl::lift::lift3

pub fn lift3<F, A, B, C, Ret>(f: F, ca: &Signal<A>, cb: &Signal<B>, cc: &Signal<C>) -> Signal<Ret> where F: Fn(A, B, C) -> Ret + Send + Sync + 'static, A: Send + Sync + Clone + 'static, B: Send + Sync + Clone + 'static, C: Send + Sync + Clone + 'static, Ret: Send + Sync + Clone + 'static

Lift a ternary function.