Hdr.parse.pick: def of bend-toon-codec@0.1.0.0
Import: import bend-toon-codec@0.1.0.0/src/hdr.bend as Hdr
Lines 156-161 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=156&end_line=161

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

def parse.pick(+open: Bool, +s: String) -> Result<&2, &2, String, Hdr>:
  match open:
    case True{}:
      len(N.span_digits(Hd.drop(s)))
    case False{}:
      bad("expected [")

Uses (8):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool
  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=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=bad
  https://jend.leeeet.dev/definition.txt?path=bend-toon-codec@0.1.0.0/src/hdr.bend&name=len
  https://jend.leeeet.dev/definition.txt?path=bend-toon-codec@0.1.0.0/src/head.bend&name=drop
  https://jend.leeeet.dev/definition.txt?path=bend-toon-codec@0.1.0.0/src/num.bend&name=span_digits