func syncDemo() {
	log.Println("start", time.Now())
	var t1, t2 int
	var err error
	var wg sync.WaitGroup
	wg.Add(2)
	go func(id int, wg *sync.WaitGroup) {
		defer wg.Done()
		time.Sleep(3 * time.Second)
  
    
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  | defmodule CodeOnChain.HelloWorld do | |
| @moduledoc """ | |
| this is a hello world snippet | |
| """ | |
| def get_module_doc, do: @module_doc | |
| def hello_world() do | |
| "hello world" | |
| end | |
| end | 
  
    
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  | export function handler() { | |
| console.log(Deno) | |
| } | 
  
    
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  | import axiod from "https://deno.land/x/axiod/mod.ts"; | |
| export async function handler(a: int, b: int) { | |
| const { data } = await axiod<{ delay: string }>( | |
| "https://postman-echo.com/delay/2" | |
| ); | |
| console.log(data); | |
| return a+b; | |
| } | 
  
    
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  | export function handler() { | |
| return "hello world" | |
| } |