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: workspaceagentconn.go
    path of file: ./repos/coder/codersdk
    
    the code of the file until where you have to start completion: package codersdk

import (
	"context"
	"encoding/binary"
	"encoding/json"
	"fmt"
	"io"
	"net"
	"net/http"
	"net/netip"
	"os"
	"strconv"
	"strings"
	"time"

	"github.com/google/uuid"
	"github.com/hashicorp/go-multierror"
	"golang.org/x/crypto/ssh"
	"golang.org/x/xerrors"
	"gvisor.dev/gvisor/pkg/tcpip/adapters/gonet"
	"tailscale.com/ipn/ipnstate"
	"tailscale.com/net/speedtest"

	"github.com/coder/coder/v2/coderd/tracing"
	"github.com/coder/coder/v2/tailnet"
)

// WorkspaceAgentIP is a static IPv6 address with the Tailscale prefix that is use
    
func (c *WorkspaceAgentConn) SSHClient(ctx context.Context) (*ssh.Client, error) {
	ctx, span := tracing.StartSpan(ctx)
	defer span.End()

	netConn, err := c.SSH(ctx)
	if err != nil {
		return nil, xerrors.Errorf("ssh: %w", err)
	}

	sshConn, channels, requests, err := ssh.NewClientConn(netConn, "localhost:22", &ssh.ClientConfig{
		// SSH host validation isn't helpful, because obtaining a peer
		// connection already signifies user-intent to dial a workspace.
		// #nosec
		HostKeyCallback: ssh.InsecureIgnoreHostKey(),
	})
	if err != nil {
		return nil, xerrors.Errorf("ssh conn: %w", err)
	}

	return ssh.NewClient(sshConn, channels, requests), nil
}