tcp_transport.go
func (t *TCPStreamLayer) Dial(address ServerAddress, timeout time.Duration) (net.Conn, error) {
	return net.DialTimeout("tcp", string(address), timeout)
}
func (t *TCPStreamLayer) Dial(address ServerAddress, timeout time.Duration) (net.Conn, error) {
	return net.DialTimeout("tcp", string(address), timeout)
}
// Dial implements the StreamLayer interface.