code: func (s *SeesawECU) VLANs(ctx *ipc.Context, reply *seesaw.VLANs) error {
  	s.trace("VLANs", ctx)
  
  	authConn, err := s.ecu.authConnect(ctx)
  	if err != nil {
  		return err
  	}
  	defer authConn.Close()
  
  	vlans, err := authConn.VLANs()
  	if err != nil {
  		return err
  	}
  
  	if reply != nil {
  		*reply = *vlans
  	}
  	return nil
  }
docs: // VLANs returns a list of currently configured VLANs.