* Fix issue #13995: Handle None metadata in batch requests
- Added null check in add_key_level_controls method to prevent NoneType error
- Updated type hint to Optional[dict] for better type safety
- Added comprehensive test suite to verify the fix works correctly
- All existing tests pass, confirming no regression
Fixes#13995
Co-authored-by: openhands <openhands@all-hands.dev>
* Move test file to tests/test_litellm/proxy/ directory
- Moved test_batch_metadata_none_fix.py from tests/ to tests/test_litellm/proxy/
- Updated import structure to match existing test patterns
- This ensures the test runs in GitHub Actions as requested by @krrishdholakia
Co-authored-by: openhands <openhands@all-hands.dev>
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Co-authored-by: openhands <openhands@all-hands.dev>
Xingyao Wang