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vendor/illuminate/database/Eloquent/Factories/CrossJoinSequence.php

@@ -0,0 +1,26 @@
+<?php
+
+namespace Illuminate\Database\Eloquent\Factories;
+
+use Illuminate\Support\Arr;
+
+class CrossJoinSequence extends Sequence
+{
+    /**
+     * Create a new cross join sequence instance.
+     *
+     * @param  array  ...$sequences
+     * @return void
+     */
+    public function __construct(...$sequences)
+    {
+        $crossJoined = array_map(
+            function ($a) {
+                return array_merge(...$a);
+            },
+            Arr::crossJoin(...$sequences),
+        );
+
+        parent::__construct(...$crossJoined);
+    }
+}