[jrmccluskey]

Modernize the ONNX extras group and re-enable testing, which has been disabled since 2024. Prior to updating, the onnx extras group was not able to install on any currently supported Python version.

[github-actions]

📋 Review Summary

This PR updates the onnx extra and ml_base_core dependency bounds in setup.py, re-enables the ONNX postcommit test tasks in tox.ini and build.gradle (testing lower-bound 119 and latest), and disables multi-process model sharing on OnnxModelHandlerNumPy since onnxruntime.InferenceSession manages its own native thread pools and cannot be safely proxied across processes.

🔍 General Feedback

• The changes to OnnxModelHandlerNumPy and the updated dependency/tox configurations are well-structured and clearly documented.
• Note that the branch currently has a merge conflict with recent master changes (from PR #40752) in .github/trigger_files/beam_PostCommit_Python_Dependency.json and adjacent lines in sdks/python/test-suites/tox/py311/build.gradle / sdks/python/tox.ini, so a rebase on master will be needed.
• One minor cleanup opportunity was noted in tox.ini regarding an obsolete onnx<1.19.0 pin in testenv:py311-ml.

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[github-actions]

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 79.89%. Comparing base (2213e54) to head (f7b5dca).
⚠️ Report is 37 commits behind head on master.

Additional details and impacted files

@@             Coverage Diff             @@
##           master   #40821       +/-   ##
===========================================
+ Coverage        0   79.89%   +79.89%     
===========================================
  Files           0      493      +493     
  Lines           0    83479    +83479     
===========================================
+ Hits            0    66695    +66695     
- Misses          0    16784    +16784     

Flag	Coverage Δ
python	79.89% <ø> (?)

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