RequestFactory: Get entity ID on success of persist

Hi,
I am using following code.

Note:
request is of type ? extends RequestContext
entity is of type ? extends EntityProxy

(request).persist().using(entity).fire(
new Receiver<Void>() {
@Override
public void onSuccess(Void unUsed) {
I need the entity ID generated in the DB here.
If I do entity.getId(); it returns null obviously.
As I don't know the ID here, I can't even refetch the persisted
entity.
The Receiver should have received the updated entity as arg to its
onSuccess.
}

});

How do I do it?

Thanks,
Tapomay.

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