Method search

src/structures/tree.rs:83–85

(&self, key: K)

    }

    pub fn search(&self, key: K) -> Result<Option<V>, io::Error> {
        self.search_node(&*self.root, key)
    }

    fn search_node(&self, node: &Node<K, V>, key: K) -> Result<Option<V>, io::Error> {
        match node.node_type {