code: func (s *StoreToPVFetcher) GetPersistentVolumeInfo(id string) (*api.PersistentVolume, error) {
  	o, exists, err := s.Get(&api.PersistentVolume{ObjectMeta: api.ObjectMeta{Name: id}})
  
  	if err != nil {
  		return nil, fmt.Errorf("error retrieving PersistentVolume '%v' from cache: %v", id, err)
  	}
  
  	if !exists {
  		return nil, fmt.Errorf("PersistentVolume '%v' is not in cache", id)
  	}
  
  	return o.(*api.PersistentVolume), nil
  }
docs: // GetPersistentVolumeInfo returns cached data for the PersistentVolume 'id'.