The type indicates the intended use of the security policy.
CLOUD_ARMOR - Cloud Armor backend security policies can be
configured to filter incoming HTTP requests targeting backend
services. They filter requests before they hit the origin servers.
CLOUD_ARMOR_EDGE - Cloud Armor edge security policies can be
configured to filter incoming HTTP requests targeting backend
services (including Cloud CDN-enabled) as well as backend buckets
(Cloud Storage). They filter requests before the request is served
from Google's cache.
