You were always able to black list IP addresses using dos.yaml (https://cloud.google.com/appengine/docs/standard/python/config/dosref https://cloud.google.com/a

You were always able to black list IP addresses using dos.yaml (https://cloud.google.com/appengine/docs/standard/python/config/dosref https://cloud.google.com/appengine/docs/standard/python/conf...). This seems to be taking that one step further.