static MultiMap<S> dm_moduleRequiringModuleMap_v1() {
  new MultiMap<S> mm;
  for (S moduleID : dm_dynModulesOnServer_ids()) {
    S src = dm_getSnippetText(moduleID);
    for (S args : tok_allArgsInCallsToFunctions(javaTok(src), 'dm_requireModule, 'dm_makeModule, 'dm_makeOrShowModule))
      if (isProperlyQuoted2(args))
        mm.put(moduleID, beforeSlash_orAll(unquote(args)));
  }
  ret mm;
}