title: Is there a way to subscribe to Course Changes (Archive/Deletion) in Google Classroom PubSub Registrations?
body: <p>I have a working Google Classroom Pub Sub Registration Service.</p>
  <p>There is a sequential registration process for each course in the organization, however this only emits when there are course work changes.</p>
  <p>Is there a way to tap into courses being <strong>Archived</strong> or <strong>Deleted</strong>?
  I would like to run a background function to update our system by removing courses that are either archived or deleted by any teacher or admin.</p>