title: App engine -- how to handle shutdown hooks now that backends are deprecated?
body: <p>I noticed that the shutdown hook has been deprecated:</p>
  
  <p><a href="https://developers.google.com/appengine/docs/python/backends/runtimeapi" rel="nofollow">Runtime API</a></p>
  
  <p>I moved my app from using backends to modules, but obviously App Engine will still shutdown instances sometimes. How should we handle that going on because I don't see any documentation in the Modules section? </p>
  
  <p>Thanks. </p>