3 use super::{Comparator, Forest, INNER_SIZE, Node, NodeData, NodePool, Path};
81     root: PackedOption<Node>,
332     fn is_empty(&self, root: &PackedOption<Node>) -> bool {  in is_empty()
342         root: &PackedOption<Node>,  in prev()  argument
368         root: &PackedOption<Node>,  in goto()  argument
384         root: &PackedOption<Node>,  in goto_first()  argument
396         root: &mut PackedOption<Node>,  in insert()  argument
407         root: &mut PackedOption<Node>,  in try_insert()  argument
435         root: &mut PackedOption<Node>,  in remove()  argument
456     root: &'a PackedOption<Node>,
539     root: &'a mut PackedOption<Node>,
639     root: PackedOption<Node>,
668     root: PackedOption<Node>,