volumeID string

	//csiClient with cache
	csiClientGetter
}

// NewMetricsCsi creates a new metricsCsi with the Volume ID and path.
func NewMetricsCsi(volumeID string, targetPath string, driverName csiDriverName) volume.MetricsProvider {
	mc := &metricsCsi{volumeID: volumeID, targetPath: targetPath}
	mc.csiClientGetter.driverName = driverName
	return mc
}

func (mc *metricsCsi) GetMetrics() (*volume.Metrics, error) {

	if err != nil {
		return false, errors.New(log("Expander.NodeExpand failed to get CSI persistent source: %v", err))
	}

	csClient, err := newCsiDriverClient(csiDriverName(csiSource.Driver))
	if err != nil {
		// Treat the absence of the CSI driver as a transient error
		// See https://github.com/kubernetes/kubernetes/issues/120268