def fields.len
import bend-toon-codec@0.1.0.0/src/encode.bend as Encodeimport Base
import bend-toon-codec@0.1.0.0/src/json.bend as J
112def fields.len(+fs: J.Json) -> U32:
113 match fs:
114 case J.JField{k, v, t}:
115 (1 + fields.len(t) : U32)
116 case _:
117 0