code: func NetworkOptionDriverOpts(opts map[string]string) NetworkOption {
  	return func(n *network) {
  		if n.generic == nil {
  			n.generic = make(map[string]interface{})
  		}
  		if opts == nil {
  			opts = make(map[string]string)
  		}
  		// Store the options
  		n.generic[netlabel.GenericData] = opts
  	}
  }
docs: // NetworkOptionDriverOpts function returns an option setter for any driver parameter described by a map