def tk.go
import emerging-ezaudio@0.4.0.0/src/mp3_dec.bend as Mp3Decimport Base
37def tk.go(hop: Nat, xs: List<&2, U32>, +acc: U32) -> Tk:
38 match hop xs:
39 case 0n ys:
40 Tk{acc, ys}
41 case _ Nil{}:
42 Tk{acc, []}
43 case 1n+p +hd <> tl:
44 tk.go(p, tl, ((acc << 1n : U32) .|. hd : U32))