code: func (manager *metadataManager) Clean(taskARN string) error {
  	metadataPath, err := getTaskMetadataDir(taskARN, manager.dataDir)
  	if err != nil {
  		return fmt.Errorf("clean task metadata: unable to get metadata directory for task %s: %v", taskARN, err)
  	}
  	return manager.osWrap.RemoveAll(metadataPath)
  }
docs: // Clean removes the metadata files of all containers associated with a task