src/Service/cacheService.php
public function getIds()
    {
        if ($this->cacheObj && strtoupper($this->cache) == "ENABLED") {
            return $this->cacheObj->getIds();
        } else {
            return false;
        }
    }
public function getIds()
    {
        if ($this->cacheObj && strtoupper($this->cache) == "ENABLED") {
            return $this->cacheObj->getIds();
        } else {
            return false;
        }
    }
get a list of all caches

@return array ids