docs: private static Map<String, Object> processConf(Map<String, ?> conf) {
          Map<String, Object> m = new HashMap<String, Object>(conf.size());
          for (String s : conf.keySet()) {
              Object o = conf.get(s);
              if (s.startsWith("act.")) s = s.substring(4);
              m.put(s, o);
              m.put(Config.canonical(s), o);
          }
          return m;
      }