Valiant::Validator::Collection - A filter that contains and runs other filters
This is used internally by Valiant and I can't imagine a good use for it elsewhere so the documentation here is light. There's no reason to NOT use it if for some reason a good use comes to mind (I don't plan to change this so you can consider it public API but just perhaps tricky bits for very advanced use cases).
I guess it could be used to make very complicated nested filters. I'm not going to show you how to do that since I think only people that can figure it out should be allowed. If you think I'm wrong ping me on IRC and submit a doc patch.