code: func (kl *Kubelet) podVolumeSubpathsDirExists(podUID types.UID) (bool, error) {
  	podVolDir := kl.getPodVolumeSubpathsDir(podUID)
  
  	if pathExists, pathErr := mount.PathExists(podVolDir); pathErr != nil {
  		return true, fmt.Errorf("Error checking if path %q exists: %v", podVolDir, pathErr)
  	} else if !pathExists {
  		return false, nil
  	}
  	return true, nil
  }
docs: // podVolumesSubpathsDirExists returns true if the pod volume-subpaths directory for
  // a given pod exists