| @@ -182,9 +182,9 @@ | ||
| 182 | 182 | /** |
| 183 | 183 | * @param string $modelsDir Directory containing service models. |
| 184 | 184 | * @param array $manifest The API version manifest data. |
| 185 | 185 | */ |
| 186 | - private function __construct($modelsDir, array $manifest = null) | |
| 186 | + private function __construct($modelsDir, ?array $manifest = null) | |
| 187 | 187 | { |
| 188 | 188 | $this->manifest = $manifest; |
| 189 | 189 | $this->modelsDir = \rtrim($modelsDir, '/'); |
| 190 | 190 | if (!\is_dir($this->modelsDir)) { |
