def pk.pad
import emerging-ezaudio@0.4.0.0/src/mp3_enc.bend as Mp3Encimport Base
1305def pk.pad(+xs: List<&2, U32>, +fsz: U32) -> List<&2, U32>:
1306 List.append(&2, U32, xs, List.replicate(U32,
1307 U32.to_nat(enc.extra(U32.from_nat(List.length(&2, U32, xs)), fsz)), 0))