@@ -13,7 +13,7 @@ |
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13 | 13 | * |
14 | 14 | * @param array $output |
15 | 15 | * @param mixed $transformer |
16 | - * @param mixed $serializer |
|
16 | + * @param string|null $serializer |
|
17 | 17 | * @return array |
18 | 18 | */ |
19 | 19 | public function transform(array $output, $transformer, $serializer = null) |