code: func (d *Driver) Start() (err error) {
  	tc, terr := net.Dial("tcp", d.tcpaddress)
  	if terr != nil {
  		return terr
  	}
  	uc, uerr := net.Dial("udp4", d.udpaddress)
  	if uerr != nil {
  		return uerr
  	}
  
  	d.udpconn = uc
  	d.tcpconn = tc
  
  	return
  }
docs: // Start starts the driver.