code: func (mounter *Mounter) GetMountRefs(pathname string) ([]string, error) {
  	windowsPath := normalizeWindowsPath(pathname)
  	pathExists, pathErr := PathExists(windowsPath)
  	if !pathExists {
  		return []string{}, nil
  	} else if IsCorruptedMnt(pathErr) {
  		klog.Warningf("GetMountRefs found corrupted mount at %s, treating as unmounted path", windowsPath)
  		return []string{}, nil
  	} else if pathErr != nil {
  		return nil, fmt.Errorf("error checking path %s: %v", windowsPath, pathErr)
  	}
  	return []string{pathname}, nil
  }
docs: // GetMountRefs : empty implementation here since there is no place to query all mount points on Windows