Support inherited fields for RunnerInput, other niceties

[mitrydoug]

Pull Request Checklist

• [ ] Fixes #
• [x] Tests added
• [ ] Documentation/examples added
• [x] Good commit messages and/or PR title

Summary

Currently, users cannot leverage inheritance when defining RunnerInput models that utilize Annotated fields. For example:

class ResourceIndex(RunnerInput):
    resource_name: Annotated[str, Parameter(name="resource-name")]
    resource_namespace: Annotated[str, Parameter(name="resource-namespace")]

class GetStatusInput(ResourceIndex):
    wait: Annotated[bool, Parameter(name="wait")]
    timeout_s: Annotated[int, Parameter(name="timeout")]

This would fail at runtime with a KeyError at this line, because apparently cls.__annotations__ are not inherited by child classes.

This PR enables the above inheritance structure by utilizing the existing get_field_annotations instead of my_runner_input.__annotations__.

Parameter Default Names

This PR also changes logic so that Input field Parameters adopt the name of their field if no name is provided. For example, in

class MyInput(Input):
    my_int: Annotated[int, Parameter(description="this is my int")]

The parameter is converted to Parameter(name="my_int", description="this is my int"). This avoids an error from here which is thrown when trying to generate a workflow yaml.

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 90.00000% with 2 lines in your changes missing coverage. Please review.

Project coverage is 81.8%. Comparing base (d553546) to head (c4653ef). Report is 81 commits behind head on main.

Files	Patch %	Lines
src/hera/workflows/io/_io_mixins.py	66.6%	1 Missing and 1 partial :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #1093 +/- ## ======================================= + Coverage 81.7% 81.8% +0.1% ======================================= Files 54 60 +6 Lines 4208 4641 +433 Branches 889 975 +86 ======================================= + Hits 3439 3800 +361 - Misses 574 613 +39 - Partials 195 228 +33 ```

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[mitrydoug]

applying a simplifying commit and additional test

[mitrydoug]

applying one more change, please do not merge

[samj1912]

@mitrydoug can you please update the PR description with the motivation behind the implementation and also add some comments to the code describing "why" we are performing certain operations? For eg the copy.

[mitrydoug]

I removed the logic about finding a unique Parameter/Artifact since it became clear to me that the remainder of the codebase assumes Parameters/Artifacts to be at index 1 of Annotated, so I wanted to stay consistent with that.

@samj1912 I have updated my PR description, and commented on the copy.

From my end, this is ready to go.

[elliotgunton]

the remainder of the codebase assumes Parameters/Artifacts to be at index 1

Yeah we haven't heard any complaints from people who want to use more Annotations, so if/when they do we should convert all these parts of the codebase at once