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: restart.go
    path of file: ./repos/wundergraph/pkg/restart
    
    the code of the file until where you have to start completion: // Package restart implements functions for self restarting a process
package restart

import (
	"fmt"
	"os"
	"os/exec"
	"path/filepath"
	"runtime"
	"strconv"
	"strings"
	"syscall"
)

type Options struct {
	// Args allows the caller to alter the arguments passed
	// to the restarted proce
    
func Await() {
	envKey := ppidEnvKey()
	ppid := os.Getppid()
	ppidFromEnv, _ := strconv.Atoi(os.Getenv(envKey))
	if ppidFromEnv > 0 && ppidFromEnv == ppid {
		proc, _ := os.FindProcess(ppid)
		if proc != nil {
			for {
				if err := proc.Signal(syscall.Signal(0)); err != nil {
					break
				}
			}
			os.Unsetenv(envKey)
		}
	}
}