| @@ -29,7 +29,7 @@ | ||
| 29 | 29 | |
| 30 | 30 | /** | 
| 31 | 31 | * @param HasEmitterInterface $subject | 
| 32 | - * @param CacheStorage|null $storage | |
| 32 | + * @param CacheStorage $storage | |
| 33 | 33 | * @return array | 
| 34 | 34 | */ | 
| 35 | 35 | public static function attach(HasEmitterInterface $subject, CacheStorage $storage) |