return true, nil
}

func (plugin *TestPlugin) NewDeviceUnmounter() (volume.DeviceUnmounter, error) {
	return plugin.NewDetacher()
}

func (plugin *TestPlugin) GetDeviceMountRefs(deviceMountPath string) ([]string, error) {
	return []string{}, nil
}

func (plugin *TestPlugin) SupportsMountOption() bool {
	return false
}

	return &deviceMounter{
		plugin:  plugin,
		mounter: util.NewSafeFormatAndMountFromHost(plugin.GetPluginName(), plugin.host),
	}, nil
}

func (plugin *localVolumePlugin) GetDeviceMountRefs(deviceMountPath string) ([]string, error) {
	mounter := plugin.host.GetMounter(plugin.GetPluginName())
	return mounter.GetMountRefs(deviceMountPath)
}

var _ volume.DeviceUnmounter = &deviceMounter{}

	// Persistent volumes support device mount.
	return true, nil
}

func (p *csiPlugin) NewDeviceUnmounter() (volume.DeviceUnmounter, error) {
	return p.NewDetacher()
}

func (p *csiPlugin) GetDeviceMountRefs(deviceMountPath string) ([]string, error) {
	m := p.host.GetMounter(p.GetPluginName())
	return m.GetMountRefs(deviceMountPath)
}

// BlockVolumePlugin methods
var _ volume.BlockVolumePlugin = &csiPlugin{}

type DeviceMountableVolumePlugin interface {
	VolumePlugin
	NewDeviceMounter() (DeviceMounter, error)
	NewDeviceUnmounter() (DeviceUnmounter, error)
	GetDeviceMountRefs(deviceMountPath string) ([]string, error)
	// CanDeviceMount determines if device in volume.Spec is mountable
	CanDeviceMount(spec *Spec) (bool, error)
}