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