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: invoke.go
    path of file: ./repos/kubeedge/vendor/golang.org/x/tools/internal/gocommand
    
    the code of the file until where you have to start completion: // Copyright 2020 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

// Package gocommand is a helper for calling the go command.
package gocommand

import (
	"bytes"
	"context"
	"errors"
	"fmt"
	"io"
	"log"
	"os"
	"reflect"
	"regexp"
	"runtime"
	"strconv"
	"strings"
	"sync"
	"time"

	exec "golang.org/x/sys/execabs"

	"golang.org/x/tools/internal/event"
)

// An Runner will run go command invocations and serialize
// them if it sees a concurrency error.
type Runner struct {
	// once guards the runner initialization.
	once sync.Once

	// inFlight tracks available workers.
	inFlight chan struct{}

	// serialized guards the ability to run a go command serially,
	// to
    
func HandleHangingGoCommand(proc *os.Process) {
	switch runtime.GOOS {
	case "linux", "darwin", "freebsd", "netbsd":
		fmt.Fprintln(os.Stderr, `DETECTED A HANGING GO COMMAND

The gopls test runner has detected a hanging go command. In order to debug
this, the output of ps and lsof/fstat is printed below.

See golang/go#54461 for more details.`)

		fmt.Fprintln(os.Stderr, "\nps axo ppid,pid,command:")
		fmt.Fprintln(os.Stderr, "-------------------------")
		psCmd := exec.Command("ps", "axo", "ppid,pid,command")
		psCmd.Stdout = os.Stderr
		psCmd.Stderr = os.Stderr
		if err := psCmd.Run(); err != nil {
			panic(fmt.Sprintf("running ps: %v", err))
		}

		listFiles := "lsof"
		if runtime.GOOS == "freebsd" || runtime.GOOS == "netbsd" {
			listFiles = "fstat"
		}

		fmt.Fprintln(os.Stderr, "\n"+listFiles+":")
		fmt.Fprintln(os.Stderr, "-----")
		listFilesCmd := exec.Command(listFiles)
		listFilesCmd.Stdout = os.Stderr
		listFilesCmd.Stderr = os.Stderr
		if err := listFilesCmd.Run(); err != nil {
			panic(fmt.Sprintf("running %s: %v", listFiles, err))
		}
	}
	panic(fmt.Sprintf("detected hanging go command (pid %d): see golang/go#54461 for more details", proc.Pid))
}