please include function countDispatch.

static O html_serveDispatches(S uri) {
  if (eq(uri, "/dispatches"))
    ret htmlencode(sfu(mapValues(func(countDispatch_Data d) -> Map {
      mapPlus(objectToMap(d), averageTime := ratio(d.totalTime, d.invocations))
    }, cloneMap(countDispatch_map))));
  null;
}