Allow providing a function with return type a class in class_path

mauvilsa commented 1 month ago

What does this PR do?

Simplifies cases like https://github.com/Lightning-AI/pytorch-lightning/discussions/13613

Before submitting

[x] Did you read the contributing guideline?
[x] Did you update the documentation? (readme and public docstrings)
[x] Did you write unit tests such that there is 100% coverage on related code? (required for bug fixes and new features)
[x] Did you verify that new and existing tests pass locally?
[x] Did you make sure that all changes preserve backward compatibility?
[x] Did you update the CHANGELOG? (not for typos, docs, test updates, or minor internal changes/refactors)

codecov[bot] commented 1 month ago

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 100.00%. Comparing base (4166d0a) to head (24e593c).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #513 +/- ## ========================================= Coverage 100.00% 100.00% ========================================= Files 21 21 Lines 6150 6172 +22 ========================================= + Hits 6150 6172 +22 ``` | [Flag](https://app.codecov.io/gh/omni-us/jsonargparse/pull/513/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=omni-us) | Coverage Δ | | |---|---|---| | [py3.10](https://app.codecov.io/gh/omni-us/jsonargparse/pull/513/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=omni-us) | `87.32% <95.65%> (+0.02%)` | :arrow_up: | | [py3.10_all](https://app.codecov.io/gh/omni-us/jsonargparse/pull/513/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=omni-us) | `98.63% <95.65%> (-0.02%)` | :arrow_down: | | 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