def walk.done
import emerging-ezaudio@0.4.0.0/src/mp3.bend as Mp3import Base
613def walk.done(ok: Bool, +hz: U32, +ch: U32, pcm: List<&2, U32>) -> Maybe<&2, Pcm>:
614 match ok:
615 case False{}:
616 None{}
617 case True{}:
618 Some{Pcm{hz, ch, pcm}}