chore(gae): rename regions in standard/multitenancy (#13047)

* chore(gae): rename region 'all' in datastore.py

* chore(gae): rename region 'all' in memcache.py

* chore(gae): rename region 'all' in taskqueue.py

Author: eapl-gemugami

appengine/standard/multitenancy/datastore.py

@@ -19,7 +19,7 @@
 For more information, see README.md.
 """
 
-# [START all]
+# [START gae_multitenancy_datastore]
 from google.appengine.api import namespace_manager
 from google.appengine.ext import ndb
 import webapp2
@@ -73,4 +73,4 @@ def get(self, namespace="default"):
     ],
     debug=True,
 )
-# [END all]
+# [END gae_multitenancy_datastore]

appengine/standard/multitenancy/memcache.py

@@ -19,7 +19,7 @@
 For more information, see README.md.
 """
 
-# [START all]
+# [START gae_multitenancy_memcache]
 from google.appengine.api import memcache
 from google.appengine.api import namespace_manager
 import webapp2
@@ -56,4 +56,4 @@ def get(self, namespace="default"):
     ],
     debug=True,
 )
-# [END all]
+# [END gae_multitenancy_memcache]

appengine/standard/multitenancy/taskqueue.py

@@ -19,7 +19,7 @@
 For more information, see README.md.
 """
 
-# [START all]
+# [START gae_multitenancy_taskqueue]
 from google.appengine.api import namespace_manager
 from google.appengine.api import taskqueue
 from google.appengine.ext import ndb
@@ -91,4 +91,4 @@ def get(self, namespace="default"):
     ],
     debug=True,
 )
-# [END all]
+# [END gae_multitenancy_taskqueue]