(readPairValueDataMapper: StringAdd).self
(readPairValueDataMapper: StringFormat).self
(readPairValueDataMapper: ArrowAssoc[ReadPairValueDataMapper[K, V]]).x
(Since version 2.10.0) Use leftOfArrow
instead
(readPairValueDataMapper: Ensuring[ReadPairValueDataMapper[K, V]]).x
(Since version 2.10.0) Use resultOfEnsuring
instead