code: func Load(path string, myID protocol.DeviceID) (Wrapper, error) {
  	fd, err := os.Open(path)
  	if err != nil {
  		return nil, err
  	}
  	defer fd.Close()
  
  	cfg, err := ReadXML(fd, myID)
  	if err != nil {
  		return nil, err
  	}
  
  	return Wrap(path, cfg), nil
  }
docs: // Load loads an existing file on disk and returns a new configuration
  // wrapper.