Function adapton::collection_algo::tree_reduce_monoid

pub fn tree_reduce_monoid<A: Adapton, Elm: Eq + Hash + Clone + Debug, T: TreeT<A, Elm>, BinOp>(st: &mut A, tree: T::Tree, zero: Elm, binop: &BinOp) -> Elm where BinOp: Fn(&mut A, Elm, Elm) -> Elm