code: func (plugin *flexVolumePlugin) NewMounter(spec *volume.Spec, pod *api.Pod, _ volume.VolumeOptions) (volume.Mounter, error) {
  	return plugin.newMounterInternal(spec, pod, plugin.host.GetMounter(plugin.GetPluginName()), plugin.runner)
  }
docs: // NewMounter is part of the volume.VolumePlugin interface.