Does pull-many employ any batching retrieval from storage. I'm thinking about giving Urania (https://www.niwi.nz/2016/03/05/fetching-and-aggregating-remote-data-with-urania/) a play and thought auto batching pulls might be a fun experiment

I'm considering adding a new feature to #onyx to allow users to supply a batch-fn which operates on a full onyx batch, rather than just a single segment at a time. Urania/haxl style auto batching would make this pretty powerful.

So, regarding database functions. Is it possible to have multi arity functions and optional arguments?