(Added Dec. 30, 2014) Some situations where this may be useful: - read-only scopes (for storage and other APIs) - scopes to span multiple different APIs (though maybe the user would just create their own credentials at that point) --- (Below from Sept. 21, 2014) From TODO: ``` python # TODO: Allow specific scopes and authorization levels ``` See [`gcloud/storage/__init__.py`](https://github.com/GoogleCloudPlatform/gcloud-python/blob/1f2aaf3606802f4f02eeb30e22e1082ef7f4594e/gcloud/storage/__init__.py#L34) for relevant code and #146 for some context. `git blame` output ``` b7f1b774 (JJ Geewax 2014-01-29 18:02:29 -0500 34) # TODO: Allow specific scopes and authorization levels. ```