def head.cons
import emerging-ezhttp@0.22.0.0/src/http.bend as Httpimport Base
452# prepend a parsed header when present
453def head.cons(m: Maybe<&2, Header>, rest: List<&2, Header>) -> List<&2, Header>:
454 match m:
455 case None{}:
456 rest
457 case Some{hdr}:
458 hdr <> rest