(plusINDArray: StringAdd).self
(plusINDArray: StringFormat).self
(plusINDArray: ArrowAssoc[PlusINDArray[Input0]]).x
(Since version 2.10.0) Use leftOfArrow
instead
(plusINDArray: Ensuring[PlusINDArray[Input0]]).x
(Since version 2.10.0) Use resultOfEnsuring
instead