(outerElems: StringAdd).self
(outerElems: StringFormat).self
(outerElems: OuterNode[OuterElems]).toString()
(outerElems: ArrowAssoc[OuterElems]).x
(Since version 2.10.0) Use leftOfArrow
instead
(outerElems: Ensuring[OuterElems]).x
(Since version 2.10.0) Use resultOfEnsuring
instead