validation module

[amaloney]

See arviz-devs/arviz-plots#83 for more info. The goal is to create modules to verify inputs from users.

[OriolAbril]

First step might be porting/adapting https://github.com/arviz-devs/arviz-stats/blob/main/src/arviz_stats/validate.py. Also, there are validator functions available https://github.com/arviz-devs/arviz-base/blob/main/src/arviz_base/rcparams.py which are triggered every time you attempt to set the value of an rcParam and can probably help with some of the validation steps

[amaloney]

Do we want to use a tool for this? Perhaps something like pydantic?

[OriolAbril]

Probably not unless it is something extremely lightweight and well supported in all platforms. pydantic I think would fit the bill. I have not used it yet though so not sure.

[amaloney]

I think I can investigate its use here. I'll report back with more info