Doesn't work on Python 3.11+

The framework depends on value library which hasn't been updated in 11 years - https://github.com/keleshev/value.

It doesn't work on Python 3.11 anymore because it depends on getargspec module which has been deprecated since 3.0 and is now completely removed: https://docs.python.org/3/whatsnew/3.11.html#removed.

I would advise getting rid of value library and re-evaluate how object equality is being checked.