def max_in
import cswap-bend-cli@0.1.0.0/store/seq.bend as Seqimport Base
import cswap-bend-cli@0.1.0.0/json.bend as Json
100def max_in(+fields: Json.Json, +acc: U32) -> U32:
101 match fields:
102 case Json.JField{k, v, t}:
103 max_in(t, max_u32(acc, str_u32(k)))
104 case _:
105 acc