code: func (config *configuration) fromOptions(labels map[string]string) error {
  	for label, value := range labels {
  		switch label {
  		case parentOpt:
  			// parse driver option '-o parent'
  			config.Parent = value
  		case driverModeOpt:
  			// parse driver option '-o ipvlan_mode'
  			config.IpvlanMode = value
  		}
  	}
  	return nil
  }
docs: // fromOptions binds the generic options to networkConfiguration to cache