I did make a change in this method, but it appears lower than your comment. But this has been addressed, thanks for the feedback.

We've decided (for the time being) not to implement bulk deletes (though we could add this logic in later; see Cale's earlier comment about `set_many` -- implemented -- and `get_many`, `delete_many` -- not yet implemented). So for now, writes are bulk, but deletes are still immediate. I discussed this idea with Cale, and we agree that for now, this is an easy and workable approach, but we may want to (should?) extend the api at a future date. But that extension should probably live as a story in the backlog for now.