Wav.fmt.rate: def of emerging-ezaudio@0.4.0.0
Import: import emerging-ezaudio@0.4.0.0/src/wav.bend as Wav
Lines 89-94 of emerging-ezaudio@0.4.0.0/src/wav.bend: https://jend.leeeet.dev/read.txt?path=emerging-ezaudio@0.4.0.0/src/wav.bend&start_line=89&end_line=94

import Base

def fmt.rate(ok: Bool, +kind: U32, +ch: U32, +rate: U32) -> Maybe<&2, Fm>:
  match ok:
    case True{}:
      Some{Fm{kind, ch, rate}}
    case False{}:
      None{}

Uses (4):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Maybe
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32
  https://jend.leeeet.dev/definition.txt?path=emerging-ezaudio@0.4.0.0/src/wav.bend&name=Fm