I do have a working fork of this, perhaps I will start maintaining it since the idea is great. With your question though, I did not put enough effort to think about possible sollutions, but generally, I am skeptical of blunt application of a transformation. I think the data need to be sanitized before it enters the system and stored in a predictable format, then you can apply expected conversions when you retrieve the data from storage (here, storage is anything that stores the data, even if it is a variable). Let's postpone this discussion until I am ready to maintain the fork and we will get to this PR :)