$storage
$storage : \Horde_Cache_Storage
Contains the storage driver used by the Cache object.
A Horde_Injector:: based Horde_Cache:: factory.
Copyright 2010-2017 Horde LLC (http://www.horde.org/)
See the enclosed file LICENSE for license information (LGPL). If you did not receive this file, see http://www.horde.org/licenses/lgpl21.