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86c8f4fc - 📝 Update `docs/en/docs/tutorial/body.md` with Python 3.10 union type example (#11415)

📝 Update `docs/en/docs/tutorial/body.md` with Python 3.10 union type example (#11415) Co-authored-by: svlandeg <svlandeg@github.com> Co-authored-by: Sebastián Ramírez <tiangolo@gmail.com>