fix: minor type hint in run method

[Hansehart]

Related Issues

N/A

Proposed Changes

This PR corrects the type hint of the meta parameter in the AzureOCRDocumentConverter.run() method.

Previously:

meta: Optional[list[dict[str, Any]]] = None

Now:

meta: Optional[Union[dict[str, Any], list[dict[str, Any]]]] = None

This makes the type annotation accurate to actual runtime behavior, since normalize_metadata() accepts both a single dict and a list of dicts.

How did you test it?

Ran existing unit tests for AzureOCRDocumentConverter.

Notes for the reviewer

The change only affects the type annotation and does not modify any runtime logic. This improves IDE and static type-checking support.

[vercel]

@Hansehart is attempting to deploy a commit to the deepset Team on Vercel.

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[CLAassistant]

All committers have signed the CLA.

[sjrl]

@Hansehart thanks for the fix! Could you run hatch run fmt haystack locally to fix the formatting issue?

[sjrl]

Thanks!

[coveralls]

Pull Request Test Coverage Report for Build 18801669717

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 23 unchanged lines in 2 files lost coverage.
• Overall coverage decreased (-0.02%) to 92.199%

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Files with Coverage Reduction	New Missed Lines	%
core/pipeline/async_pipeline.py	3	65.88%
components/converters/azure.py	20	89.2%

Totals
Change from base Build 18783509336:	-0.02%
Covered Lines:	13461
Relevant Lines:	14600

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💛 - Coveralls