def fields_put.dup
import bend-kit-http@0.38.2.0/http.bend as Httpimport Base
303def fields_put.dup(m: Map<&2, List<&2, String>>, k: String, v: String, bad: Bool) -> Fields:
304 match bad:
305 case True{}:
306 FieldsBad{}
307 case False{}:
308 FieldsOk{add(m, k, v)}