Can't get human readable error messages on uploadthing.

The returned error doesn't come with a message that I could display to a client side user. Is this something we have to try to parse out on our own? or is there some way we can get this information. The docs don't seem to make this too clear or maybe I'm missing something. I found a really nice looking error message format in the uploadthing code but it doesn't seem like it returns this?