Controller/Admin/UtilsController.php
public function getModuleCache()
    {
        if ($this->_oModuleCache === null) {
            $this->_oModuleCache = oxNew(ModuleCache::class, $this->getModule());
        }

        return $this->_oModuleCache;
    }
public function getModuleCache()
    {
        if ($this->_oModuleCache === null) {
            $this->_oModuleCache = oxNew(ModuleCache::class, $this->getModule());
        }

        return $this->_oModuleCache;
    }
Returns initialized cache instance

@return oxModuleCache