vatsrahul1001 opened a new pull request, #66909:
URL: https://github.com/apache/airflow/pull/66909
Cherry-pick of #63288 for the Airflow 3.2.2 patch release.
Backported as a prerequisite for the \`breeze registry\` tooling chain that
ultimately enables #66311 (Breeze \`down\` discovery). #63288 introduces the
\`@option_python\` decorator on \`registry backfill\` and the parallel-backfill
plumbing that downstream PRs (#65223, #65972, #65984, #66311) build on.
### Conflict resolution
- \`dev/registry/extract_connections.py\`,
\`dev/registry/extract_parameters.py\`,
\`dev/breeze/src/airflow_breeze/commands/registry_commands.py\`: PR makes
substantive content changes that didn't auto-merge against v3-2-test's older
shapes. Took PR side wholesale via \`git checkout --theirs\` for these files —
they're being rewritten to support parallel backfill, so taking PR side is the
right call.
- \`dev/breeze/doc/images/output_registry{,_backfill}.{svg,txt}\`:
auto-generated CLI help output; regenerated by the \`Update breeze docs\` prek
hook during commit.
### Lint fix-up
\`Run mypy for dev\` flagged a \`redundant-cast\` on
\`extract_parameters.py:569\`:
\`\`\`python
cls = typing.cast("type[typing.Any]", candidate) # redundant
\`\`\`
Replaced with \`cls = candidate\` — \`candidate\` is already narrowed by
\`inspect.isclass(candidate)\` immediately above, so the cast was redundant.
---
##### Was generative AI tooling used to co-author this PR?
- [X] Yes — Claude Code (Opus 4.7)
Generated-by: Claude Code (Opus 4.7) following [the
guidelines](https://github.com/apache/airflow/blob/main/contributing-docs/05_pull_requests.rst#gen-ai-assisted-contributions)
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