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<?hh function main(): void { $m = Map { 'sort' => 'created', 'order' => 'desc', }; $m->mapWithKey(($key, $value) ==> print($key)); } main();
Output for git.master, git.master_jit, rfc.property-hooks
<?hh function main(): void { $m = Map { 'sort' => 'created', 'order' => 'desc', }; $m->mapWithKey(($key, $value) ==> print($key)); } main();

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