title: aws sam - do something when last item in the queue was processed
body: <p>I have question about sqs queues. Is there a way to detect/catch some event when last item in the queue is being processed and do something after that? If not do you have any indea how could I achieve that?</p>
  <p>Lets assume I send to queue 300 items (in 5 chunks). After last item I want to do something (send an email or display some notification). Is that possible?</p>
  <p>Thanks.</p>