chromium/chrome/test/data/extensions/api_test/settings/managed_storage_events/schema.json

{
  "type": "object",
  "properties": {
    "constant-policy": { "type": "string" },
    "changes-policy": { "type": "string" },
    "deleted-policy": { "type": "string" },
    "new-policy": { "type": "string" }
  }
}