Override to return true if this header shouldn't be rendered
Override to return true if this header shouldn't be rendered
(customHeader: StringAdd).self
(customHeader: StringFormat).self
(customHeader: ArrowAssoc[CustomHeader]).x
(Since version 2.10.0) Use leftOfArrow
instead
(customHeader: Ensuring[CustomHeader]).x
(Since version 2.10.0) Use resultOfEnsuring
instead
Superclass for user-defined custom headers defined by implementing
name
andvalue
.