-return static function (RectorConfig $rectorConfig): void {
-    $rectorConfig->rule(SomeRector::class);
-};
+return RectorConfig::configure()->rules([SomeRector::class]);

 use Faker\Generator as Faker;

-$factory->define(App\User::class, function (Faker $faker) {
-    return [
-        'name' => $faker->name,
-        'email' => $faker->unique()->safeEmail,
-    ];
-});
+class UserFactory extends \Illuminate\Database\Eloquent\Factories\Factory
+{
+    protected $model = App\User::class;
+    public function definition()
+    {
+        return [
+            'name' => $this->faker->name,
+            'email' => $this->faker->unique()->safeEmail,
+        ];
+    }
+}