scala.reactive.container.PairContainer
(filter1: StringAdd).self
(filter1: StringFormat).self
(filter1: ArrowAssoc[Filter1[P, Q]]).x
(Since version 2.10.0) Use leftOfArrow
instead
(filter1: Ensuring[Filter1[P, Q]]).x
(Since version 2.10.0) Use resultOfEnsuring
instead