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  "title": "Apply arrow functions and range loops",
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  "debrief": "OpenAI Codex refactored moonbitlang/core, modernizing loops in the ryu and tree modules and switching deque binary search helpers and a deque test helper to arrow functions. The change touched four files with eleven additions and twelve deletions in one commit. It merged clean in 0.08 hours with no review requests and no change requests.",
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  "body_excerpt": "## Summary\n- modernize loops in ryu and tree modules\n- use arrow functions in deque binary search helpers\n- convert helper function in deque tests to arrow style\n\n## Testing\n- `moon info`\n- `moon fmt`\n- `moon check`\n- `moon test`\n\n------\nhttps://chatgpt.com/codex/tasks/task_e_6863f34efa288320ae58441",
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