Hdr.len: def of bend-toon-codec@0.1.0.0
Import: import bend-toon-codec@0.1.0.0/src/hdr.bend as Hdr
Lines 151-154 of bend-toon-codec@0.1.0.0/src/hdr.bend: https://jend.leeeet.dev/read.txt?path=bend-toon-codec@0.1.0.0/src/hdr.bend&start_line=151&end_line=154

import Base
import bend-toon-codec@0.1.0.0/src/num.bend as N

def len(+r: N.Sp) -> Result<&2, &2, String, Hdr>:
  match r:
    case N.Sp{ds, rest}:
      len.pick(len.ok(ds), U32.read(ds), rest)

Uses (7):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Result
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=String
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.read
  https://jend.leeeet.dev/definition.txt?path=bend-toon-codec@0.1.0.0/src/hdr.bend&name=Hdr
  https://jend.leeeet.dev/definition.txt?path=bend-toon-codec@0.1.0.0/src/hdr.bend&name=len.ok
  https://jend.leeeet.dev/definition.txt?path=bend-toon-codec@0.1.0.0/src/hdr.bend&name=len.pick
  https://jend.leeeet.dev/definition.txt?path=bend-toon-codec@0.1.0.0/src/num.bend&name=Sp