You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: streamlocal.go
    path of file: ./repos/sliver/vendor/github.com/tailscale/golang-x-crypto/ssh
    
    the code of the file until where you have to start completion: package ssh

import (
	"errors"
	"io"
	"net"
)

// streamLocalChannelOpenDirectMsg is a struct used for SSH_MSG_CHANNEL_OPEN message
// with "direct-streamlocal@openssh.com" string.
//
// See openssh-portable/PROTOCOL, section 2.4. connection: Unix domain socket forwarding
// https://github.com/openssh/openssh-portable/blob/master/PROTOCOL#L235
type streamLocalChannelOpenDirectMsg struct {
	socketPath s
    
func (c *Client) ListenUnix(socketPath string) (net.Listener, error) {
	c.handleForwardsOnce.Do(c.handleForwards)
	m := streamLocalChannelForwardMsg{
		socketPath,
	}
	// send message
	ok, _, err := c.SendRequest("streamlocal-forward@openssh.com", true, Marshal(&m))
	if err != nil {
		return nil, err
	}
	if !ok {
		return nil, errors.New("ssh: streamlocal-forward@openssh.com request denied by peer")
	}
	ch := c.forwards.add(&net.UnixAddr{Name: socketPath, Net: "unix"})

	return &unixListener{socketPath, c, ch}, nil
}