models/classes/runner/ExtendedState.php
public function getStorage()
    {
        if (!$this->storage) {
            $this->storage = $this->getServiceLocator()->get(StorageManager::SERVICE_ID);
        }
        return $this->storage;
    }
public function getStorage()
    {
        if (!$this->storage) {
            $this->storage = $this->getServiceLocator()->get(StorageManager::SERVICE_ID);
        }
        return $this->storage;
    }
Gets the StorageManager service
@return StorageManager