akka.http.model.headers.CacheDirective
(fieldNamesDirective: StringAdd).self
(fieldNamesDirective: StringFormat).self
(fieldNamesDirective: ArrowAssoc[FieldNamesDirective]).x
(Since version 2.10.0) Use leftOfArrow
instead
(fieldNamesDirective: Ensuring[FieldNamesDirective]).x
(Since version 2.10.0) Use resultOfEnsuring
instead