1039 pub struct RBTreeNodeReservation<K, V> {  struct
1043 impl<K, V> RBTreeNodeReservation<K, V> {  implementation
1046     pub fn new(flags: Flags) -> Result<RBTreeNodeReservation<K, V>> {  in new()
1047         Ok(RBTreeNodeReservation {  in new()
1055 unsafe impl<K, V> Send for RBTreeNodeReservation<K, V> {}  implementation
1058 unsafe impl<K, V> Sync for RBTreeNodeReservation<K, V> {}  implementation
1060 impl<K, V> RBTreeNodeReservation<K, V> {  impl
1089         Ok(RBTreeNodeReservation::new(flags)?.into_node(key, value))  in new()
1116     pub fn into_reservation(self) -> RBTreeNodeReservation<K, V> {  in into_reservation()
1117         RBTreeNodeReservation {  in into_reservation()
1190     pub fn insert(self, value: V, reservation: RBTreeNodeReservation<K, V>) -> &'a mut V {  in insert()