static O shallowExport(O o, O dest) {
  if (o == null || o instanceof String || o instanceof Number || o instanceof Collection || o instanceof Map || isArray(o)) ret o;

  Class c = o.getClass();
  S className = c.getName();
  Class destClass = getClass_vmName(dest, className);
  if (destClass == c) ret o;
  ret shallowCloneToClass(destClass, o);
}