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: reddit.go
    path of file: ./repos/colly/_examples/reddit
    
    the code of the file until where you have to start completion: package main

import (
	"fmt"
	"os"
	"time"

	"github.com/gocolly/colly/v2"
)

type item struct {
	StoryURL  string
	Source    string
	comments  string
	CrawledAt time.Time
	Comments  string
	Title     string
}

func main() {
	stories := []item{}
	// Instantiate default collector
	c := colly.NewCollector(
		// Visit only domains: old.reddit.com
		colly.AllowedDomains("old.reddit.com"),
		// Parallelism
		colly.Async(true),
	)

	// On every a element which has .top-matter attribute call callback
	// This class is unique to the div that holds all information about a story
	c.OnHTML(".top-matter", func(e *colly.HTMLElement) {
		temp := item{}
		temp.StoryURL = e.ChildAttr("a[data-event-action=title]", "href")
		temp.Source = "https://old.reddit.com/r/programming/"
		temp.Title = e.ChildText("a[data-event-action=title]")
		temp.Comments = e.ChildAttr("a[data-event-action=comments]", "href")
		temp.CrawledA
    
func main() {
	stories := []item{}
	// Instantiate default collector
	c := colly.NewCollector(
		// Visit only domains: old.reddit.com
		colly.AllowedDomains("old.reddit.com"),
		// Parallelism
		colly.Async(true),
	)

	// On every a element which has .top-matter attribute call callback
	// This class is unique to the div that holds all information about a story
	c.OnHTML(".top-matter", func(e *colly.HTMLElement) {
		temp := item{}
		temp.StoryURL = e.ChildAttr("a[data-event-action=title]", "href")
		temp.Source = "https://old.reddit.com/r/programming/"
		temp.Title = e.ChildText("a[data-event-action=title]")
		temp.Comments = e.ChildAttr("a[data-event-action=comments]", "href")
		temp.CrawledAt = time.Now()
		stories = append(stories, temp)
	})

	// On every span tag with the class next-button
	c.OnHTML("span.next-button", func(h *colly.HTMLElement) {
		t := h.ChildAttr("a", "href")
		c.Visit(t)
	})

	// Set max Parallelism and introduce a Random Delay
	c.Limit(&colly.LimitRule{
		Parallelism: 2,
		RandomDelay: 5 * time.Second,
	})

	// Before making a request print "Visiting ..."
	c.OnRequest(func(r *colly.Request) {
		fmt.Println("Visiting", r.URL.String())

	})

	// Crawl all reddits the user passes in
	reddits := os.Args[1:]
	for _, reddit := range reddits {
		c.Visit(reddit)

	}

	c.Wait()
	fmt.Println(stories)

}