Fold.keys: def of bend-toon-codec@0.1.0.0
Import: import bend-toon-codec@0.1.0.0/src/fold.bend as Fold
Lines 52-57 of bend-toon-codec@0.1.0.0/src/fold.bend: https://jend.leeeet.dev/read.txt?path=bend-toon-codec@0.1.0.0/src/fold.bend&start_line=52&end_line=57

import Base
import bend-toon-codec@0.1.0.0/src/json.bend as J

def keys(+fs: J.Json) -> List<&2, String>:
  match fs:
    case J.JField{k, v, t}:
      Con{k, keys(t)}
    case _:
      Nil{}

Uses (3):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  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/json.bend&name=Json