[ENH]: Introduce junifer.api.generate_yaml

[synchon]

• description of feature/fix
• tests added/passed
• add an entry for the latest changes

This PR adds generate_yaml under api to generate feature YAML from metadata. Its primary use-case is in julio's feature addition to registry.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 100.00%. Comparing base (32666e1) to head (7e49b70).

Additional details and impacted files

@@            Coverage Diff            @@
##              main      #498   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files            1         1           
  Lines            1         1           
=========================================
  Hits             1         1           

Flag	Coverage Δ
docs	100.00% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.

[fraimondo]

I have the impression that this way (dump_exclude) adds a lot of maintenance work: if something changes in the superclass (new internal variable), we need to go and update every subclass, including non-junifer ones.

Can't we just look at what fields are defined in the class (not the superclass) and just pass those ones to the constructor?

[synchon]

I have the impression that this way (dump_exclude) adds a lot of maintenance work: if something changes in the superclass (new internal variable), we need to go and update every subclass, including non-junifer ones.

That's a fair argument and I see your point.

Can't we just look at what fields are defined in the class (not the superclass) and just pass those ones to the constructor?

Not with how I understand the thing works. A model's fields consist of its own fields and superclass' fields (if it has one). So apart from defining what to exclude (or include), I don't see other way. I'll push some updates to make it better.