code: func Connect(addr string) (*FTP, error) {
  	var err error
  	var conn net.Conn
  
  	if conn, err = net.Dial("tcp", addr); err != nil {
  		return nil, err
  	}
  
  	writer := bufio.NewWriter(conn)
  	reader := bufio.NewReader(conn)
  
  	//reader.ReadString('\n')
  	object := &FTP{conn: conn, addr: addr, reader: reader, writer: writer, debug: false}
  	object.receive()
  
  	return object, nil
  }
docs: // Connect to server at addr (format "host:port"). debug is OFF