Golang worker pool

package main

import (
	"fmt"
	"github.com/gammazero/workerpool"
	"time"
)

func main() {
    
	wp := workerpool.New(2)
	requests := []string{
    "alpha", "beta", "gamma", "delta", "epsilon"}

	for _, r := range requests {
    
		wp.Submit(
			func(r string ) func(){
    
				return func() {
    
					fmt.Println("Handling request:", r)
					time.Sleep(2*time.Second)
				}
		}(r),
		)
	}

	wp.StopWait()
}