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: http_listener.go
    path of file: ./repos/go-micro/transport
    
    the code of the file until where you have to start completion: package transport

import (
	"bufio"
	"bytes"
	"io"
	"net"
	"net/http"
	"time"

	log "go-micro.dev/v4/logger"

	"golang.org/x/net/http2"
	"golang.org/x/net/http2/h2c"
)

type httpTransportListener struct {
	ht       *httpTransport
	listener net.Listener
}

func (h *httpTransportListener) Addr() string {
	return h.listener.Addr().String()
}

func (h *httpTransportListener) Close() error {
	return h.listener.Close()
}

func (h *httpTransportListener) Accept(fn func(Socket)) error {
	// Create handler mux
	// TODO: see if we should make a plugin out of the mux
	mux := http.NewServeMux()

	// Register our transport handler
	mux.HandleFunc("/", h.newHandler(fn))

	// Get optional handlers
	// TODO: This needs to
    
func (h *httpTransportListener) Accept(fn func(Socket)) error {
	// Create handler mux
	// TODO: see if we should make a plugin out of the mux
	mux := http.NewServeMux()

	// Register our transport handler
	mux.HandleFunc("/", h.newHandler(fn))

	// Get optional handlers
	// TODO: This needs to be documented clearer, and examples provided
	if h.ht.opts.Context != nil {
		handlers, ok := h.ht.opts.Context.Value("http_handlers").(map[string]http.Handler)
		if ok {
			for pattern, handler := range handlers {
				mux.Handle(pattern, handler)
			}
		}
	}

	// Server ONLY supports HTTP1 + H2C
	srv := &http.Server{
		Handler:           mux,
		ReadHeaderTimeout: time.Second * 5,
	}

	// insecure connection use h2c
	if !(h.ht.opts.Secure || h.ht.opts.TLSConfig != nil) {
		srv.Handler = h2c.NewHandler(mux, &http2.Server{})
	}

	return srv.Serve(h.listener)
}