def has_key
import bend-toon-codec@0.1.0.0/src/frame.bend as Frameimport Base
import bend-toon-codec@0.1.0.0/src/json.bend as J
import bend-toon-codec@0.1.0.0/src/head.bend as Hd
72def has_key(+k: String, +fs: J.Json) -> Bool:
73 match fs:
74 case J.JField{k2, v, t}:
75 Hd.keq(k, k2) || has_key(k, t)
76 case _:
77 False{}