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: main.go
    path of file: ./repos/syncthing/cmd/stevents
    
    the code of the file until where you have to start completion: // Copyright (C) 2014 The Syncthing Authors.
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this file,
// You can obtain one at https://mozilla.org/MPL/2.0/.

package main

import (
	"encoding/json"
	"flag"
	"fmt"
	"log"
	"net/http"
	"os"
	"time"

	_ "github.com/syncthin
    
func main() {
	log.SetOutput(os.Stdout)
	log.SetFlags(0)

	target := flag.String("target", "localhost:8384", "Target Syncthing instance")
	types := flag.String("types", "", "Filter for specific event types (comma-separated)")
	apikey := flag.String("apikey", "", "Syncthing API key")
	flag.Parse()

	if *apikey == "" {
		log.Fatal("Must give -apikey argument")
	}
	var eventsArg string
	if len(*types) > 0 {
		eventsArg = "&events=" + *types
	}

	since := 0
	for {
		req, err := http.NewRequest("GET", fmt.Sprintf("http://%s/rest/events?since=%d%s", *target, since, eventsArg), nil)
		if err != nil {
			log.Fatal(err)
		}
		req.Header.Set("X-API-Key", *apikey)
		res, err := http.DefaultClient.Do(req)
		if err != nil {
			log.Fatal(err)
		}

		var events []event
		err = json.NewDecoder(res.Body).Decode(&events)
		if err != nil {
			log.Fatal(err)
		}
		res.Body.Close()

		for _, event := range events {
			bs, _ := json.MarshalIndent(event, "", "    ")
			log.Printf("%s", bs)
			since = event.ID
		}
	}
}