Automatic parsing of time-related UDAs

I'm doing a taskwarrior integration utilizing tasklib and there are UDAs in play. UDAs of type `date` and `duration`. They're represented as Python strings when acquired `task["my_uda"]`, but I don't think this has to be the case - they could come out as `datetime` and `timedelta` IMO. Right now I'm parsing them manually in my integration, but actually this could be implemented in tasklib.

I'd be up for the job, however would like to first consult with some more experienced with the codebase - does it seem like a stupid idea due to architectural concerns or something else?