static Pair<SS, SS> tok_dropAsterisks_pair(SS map) {
  SS a = mapKeysAndValues_litOrderedMap(f tok_dropAsterisks, map);
  SS b = mapKeysAndValues_litOrderedMap(f asteriskPartsOnly, f tok_dropAsterisks, map);
  b.remove("");
  ret pair(a, b);
}