public function setPrefix(string $prefix)
    {
        foreach ($this->caches as $cache) {
            $cache->setPrefix($prefix);
        }
    }
public function setPrefix(string $prefix)
    {
        foreach ($this->caches as $cache) {
            $cache->setPrefix($prefix);
        }
    }
public function setPrefix ( string $ prefix ) { foreach ( $ this -> caches as $ cache ) { $ cache -> setPrefix ( $ prefix ) ; } }
!!! Set the prefix. !!!

WARNING: Do not use if you don't know what you do. Because this will overwrite the default prefix.

@param string $prefix
!!! Set the prefix . !!!