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   | $collection = collect(range(1, 9));   $chunks = $collection->chunk(2);   $labeld = $chunks->mapSpread(function ($odd, $even) {     return "Odd: {$odd} Even: {$even}"; });   $numbers = collect([3, 5, 7]); $words = collect(['three', 'five', 'seven']);   $results = $numbers->zip($words)     ->mapSpread(function ($number, $word) {         return $number . '=' . $word;     });   dd($labeld->toArray(), $results->toArray());
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