// We even allow overriding existing interface implementations
static <A> A nuLike lookupDynamicInterface(Class<A> intrface, O o) {
  if (o cast DynamicObject)
    try object A a = cast mapGet((Map) o.fieldValues, intrface);
  if (isInstance(intrface, o)) ret (A) o;
  null;
}


static <A> A nuLike lookupDynamicInterface(O o, Class<A> intrface) {
  ret lookupDynamicInterface(intrface, o);
}