(deBruijnIndexType: StringAdd).self
(deBruijnIndexType: StringFormat).self
(deBruijnIndexType: ArrowAssoc[DeBruijnIndexType]).x
(Since version 2.10.0) Use leftOfArrow
instead
(deBruijnIndexType: Ensuring[DeBruijnIndexType]).x
(Since version 2.10.0) Use resultOfEnsuring
instead