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: autobahn.go
    path of file: ./repos/ws/example/autobahn
    
    the code of the file until where you have to start completion: package main

import (
	"compress/flate"
	"context"
	"flag"
	"fmt"
	"io"
	"io/ioutil"
	"log"
	"net"
	"net/http"
	"os"
	"os/signal"
	"syscall"
	"time"

	"github.com/gobwas/httphead"
	"github.com/gobwas/ws"
	"github.com/gobwas/ws/wsflate"
	"github.com/gobwas/ws/wsutil"
)

var addr = flag.String("listen", ":9001", "addr to listen")

func main() {
	log.SetFlags(0)
	flag.Parse()

	http.HandleFunc("/ws", wsHandler)
	http.HandleFunc("/wsutil", wsutilHandler)
	http.HandleFunc("/wsflate", wsflateHandler)
	http.HandleFunc("/helpers/low", helpersLowLevelHandler)
	http.HandleFunc("/helpers
    
func helpersLowLevelHandler(w http.ResponseWriter, r *http.Request) {
	conn, _, _, err := ws.UpgradeHTTP(r, w)
	if err != nil {
		log.Printf("upgrade error: %s", err)
		return
	}
	defer conn.Close()

	msg := make([]wsutil.Message, 0, 4)

	for {
		msg, err = wsutil.ReadClientMessage(conn, msg[:0])
		if err != nil {
			log.Printf("read message error: %v", err)
			return
		}
		for _, m := range msg {
			if m.OpCode.IsControl() {
				err := wsutil.HandleClientControlMessage(conn, m)
				if err != nil {
					log.Printf("handle control error: %v", err)
					return
				}
				continue
			}
			err := wsutil.WriteServerMessage(conn, m.OpCode, m.Payload)
			if err != nil {
				log.Printf("write message error: %v", err)
				return
			}
		}
	}
}