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: pprof.go
    path of file: ./repos/etcd/pkg/debugutil
    
    the code of the file until where you have to start completion: // Copyright 2017 The etcd Authors
//
// Licens
    
func PProfHandlers() map[string]http.Handler {
	// set only when there's no existing setting
	if runtime.SetMutexProfileFraction(-1) == 0 {
		// 1 out of 5 mutex events are reported, on average
		runtime.SetMutexProfileFraction(5)
	}

	m := make(map[string]http.Handler)

	m[HTTPPrefixPProf+"/"] = http.HandlerFunc(pprof.Index)
	m[HTTPPrefixPProf+"/profile"] = http.HandlerFunc(pprof.Profile)
	m[HTTPPrefixPProf+"/symbol"] = http.HandlerFunc(pprof.Symbol)
	m[HTTPPrefixPProf+"/cmdline"] = http.HandlerFunc(pprof.Cmdline)
	m[HTTPPrefixPProf+"/trace"] = http.HandlerFunc(pprof.Trace)
	m[HTTPPrefixPProf+"/heap"] = pprof.Handler("heap")
	m[HTTPPrefixPProf+"/goroutine"] = pprof.Handler("goroutine")
	m[HTTPPrefixPProf+"/threadcreate"] = pprof.Handler("threadcreate")
	m[HTTPPrefixPProf+"/block"] = pprof.Handler("block")
	m[HTTPPrefixPProf+"/mutex"] = pprof.Handler("mutex")

	return m
}