def parse_u32
import bend-kit-http@0.38.4.0/http.bend as Httpimport Base
404def parse_u32(s: String) -> Maybe<&2, U32>:
405 match s:
406 case SNil{}:
407 None{}
408 case SCon{Chr{+c}, t}:
409 parse_u32.go(t, parse_u32.add(0, c), Bool.not(parse_u32.digit(c)))