converts sink to sink that first pipes received I0 to supplied p1
(sinkTaskSyntax: StringAdd).self
(sinkTaskSyntax: StringFormat).self
(sinkTaskSyntax: ArrowAssoc[SinkTaskSyntax[I]]).x
(Since version 2.10.0) Use leftOfArrow instead
(sinkTaskSyntax: Ensuring[SinkTaskSyntax[I]]).x
(Since version 2.10.0) Use resultOfEnsuring instead