| abstract public write ( array $keys, string | integer $expiry = null ) : boolean | ||
| $keys | array | Key/value pairs with keys to uniquely identify the to-be-cached item. |
| $expiry | string | integer | A `strtotime()` compatible cache time or TTL in seconds. To persist an item use `\lithium\storage\Cache::PERSIST`. |
| return | boolean | `true` on successful write, `false` otherwise. |
public abstract function write(array $keys, $expiry = null);