static O unstructureInRealm(S s, fO realm) {
  Class mc = mainClass(realm);
  printVars unstructureInRealm(+mc);
  
  O classFinder = func(S name) {
    print("classFinder in realm: " + name);
    O result = getClass_noConvertName(realm, name);
    print("result: " + result);
    ret result;
  };
  
  // notify module that we are loading (old)
  temp tempSetTL((ThreadLocal) callOpt(mc, 'dynamicObjectIsLoading_threadLocal), true);
  
  // because this is now global anyway
  temp tempSetTL(dynamicObjectIsLoading_threadLocal(), true);
  
  ret unstructure(s, false, classFinder);
}