(nodeOrdering: OuterNode[NodeOrdering]).isDefined
(nodeOrdering: StringAdd).self
(nodeOrdering: StringFormat).self
(nodeOrdering: OuterNode[NodeOrdering]).toString()
(nodeOrdering: ArrowAssoc[NodeOrdering]).x
(Since version 2.10.0) Use leftOfArrow instead
(nodeOrdering: Ensuring[NodeOrdering]).x
(Since version 2.10.0) Use resultOfEnsuring instead
Ordering for the path dependent type NodeT.