ZF-12099: Private methods should not be marked as deprecated in
Zend_Cache_Frontend_Function, Zend_Cache_Frontend_Class
Private method is not a part of object API because it is not
accessible outside declared class. Thus, it can not be marked as
deprecated. If it is not needed just remove it.       * ZF-9970
* @deprecated     private function _makeId($callback, array
$args)         return $this->makeId($callback, $args);   No
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