google.appengine.api.blobstore.create_gs_key_async

Asynchronously creates an encoded key for a Google Cloud Storage file.

It is safe to persist this key for future use.

filename The file name of the Google Cloud Storage object for which you want to create the key.
rpc Optional UserRPC object.

A UserRPC whose result will be a string as returned by create_gs_key().

TypeError If filename is not a string.
ValueError If filename is not in the format /gs/bucket_name/object_name.