Function collections::btree::search::search_tree

pub fn search_tree<BorrowType, K, V, Q: ?Sized>(node: NodeRef<BorrowType, K, V, LeafOrInternal>, key: &Q) -> SearchResult<BorrowType, K, V, LeafOrInternal, Leaf> where Q: Ord, K: Borrow<Q>

Unstable (collections #27783)

: library is unlikely to be stabilized with the current layout and name, use std::collections instead