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feat: Add TraversableFold and Folder#22

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tisonkun wants to merge 4 commits into

mainfast/traversable:mainfrom

codex/traversable-foldfast/traversable:codex/traversable-foldCopy head branch name to clipboard

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feat: Add TraversableFold and Folder#22
tisonkun wants to merge 4 commits into
mainfrom
codex/traversable-fold

Document folder downcast safety

b61ecb4

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succeeded Jun 4, 2026 in 34s

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