| MultipleTrait | Multiple trait contain methods that work on `xxxMultiple()` such as `getMultiple()`. |
| Apc | APC driver class. |
| Apcu | APC driver class. |
| FileSystem | File system driver. |
| Memcache | Memcache driver. |
| Memcached | Memcached driver. |
| Memory | Memory cache (or array cache) class. |