chore(storage): update the api
diff --git a/googleapiclient/discovery_cache/documents/storage.v1.json b/googleapiclient/discovery_cache/documents/storage.v1.json
index 4468054..aefb9ee 100644
--- a/googleapiclient/discovery_cache/documents/storage.v1.json
+++ b/googleapiclient/discovery_cache/documents/storage.v1.json
@@ -26,7 +26,7 @@
   "description": "Stores and retrieves potentially large, immutable data objects.",
   "discoveryVersion": "v1",
   "documentationLink": "https://developers.google.com/storage/docs/json_api/",
-  "etag": "\"3131363235363635373036323232373137353639\"",
+  "etag": "\"39393230393332323631393737313433303037\"",
   "icons": {
     "x16": "https://www.google.com/images/icons/product/cloud_storage-16.png",
     "x32": "https://www.google.com/images/icons/product/cloud_storage-32.png"
@@ -3230,7 +3230,7 @@
       }
     }
   },
-  "revision": "20210515",
+  "revision": "20210519",
   "rootUrl": "https://storage.googleapis.com/",
   "schemas": {
     "Bucket": {