240     pub fn cursor_front(&mut self) -> Option<Cursor<'_, K, V>> {  in cursor_front()
255     pub fn cursor_back(&mut self) -> Option<Cursor<'_, K, V>> {  in cursor_back()
285     ) -> Result<Option<RBTreeNode<K, V>>> {  in try_create_and_insert()
295     pub fn insert(&mut self, node: RBTreeNode<K, V>) -> Option<RBTreeNode<K, V>> {  in insert()
367     pub fn find_mut(&mut self, key: &K) -> Option<OccupiedEntry<'_, K, V>> {  in find_mut()
375     pub fn get(&self, key: &K) -> Option<&V> {  in get()
395     pub fn get_mut(&mut self, key: &K) -> Option<&mut V> {  in get_mut()
402     pub fn remove_node(&mut self, key: &K) -> Option<RBTreeNode<K, V>> {  in remove_node()
409     pub fn remove(&mut self, key: &K) -> Option<V> {  in remove()
418     pub fn cursor_lower_bound(&mut self, key: &K) -> Option<Cursor<'_, K, V>>  in cursor_lower_bound()
423         let mut best_match: Option<NonNull<Node<K, V>>> = None;  in cursor_lower_bound()
759     pub fn remove_current(self) -> (Option<Self>, RBTreeNode<K, V>) {  in remove_current()
792     pub fn remove_prev(&mut self) -> Option<RBTreeNode<K, V>> {  in remove_prev()
797     pub fn remove_next(&mut self) -> Option<RBTreeNode<K, V>> {  in remove_next()
801     fn remove_neighbor(&mut self, direction: Direction) -> Option<RBTreeNode<K, V>> {  in remove_neighbor()
818     pub fn move_prev(self) -> Option<Self> {  in move_prev()
823     pub fn move_next(self) -> Option<Self> {  in move_next()
827     fn mv(self, direction: Direction) -> Option<Self> {  in mv()
837     pub fn peek_prev(&self) -> Option<(&K, &V)> {  in peek_prev()
842     pub fn peek_next(&self) -> Option<(&K, &V)> {  in peek_next()
846     fn peek(&self, direction: Direction) -> Option<(&K, &V)> {  in peek()
856     pub fn peek_prev_mut(&mut self) -> Option<(&K, &mut V)> {  in peek_prev_mut()
861     pub fn peek_next_mut(&mut self) -> Option<(&K, &mut V)> {  in peek_next_mut()
865     fn peek_mut(&mut self, direction: Direction) -> Option<(&K, &mut V)> {  in peek_mut()
874     fn get_neighbor_raw(&self, direction: Direction) -> Option<NonNull<bindings::rb_node>> {  in get_neighbor_raw()
962     fn next(&mut self) -> Option<Self::Item> {  in next()
997     fn next(&mut self) -> Option<Self::Item> {  in next()
1017     fn next(&mut self) -> Option<Self::Item> {  in next()