tpscrpt

const ytdl = require('youtube-dl')
const express = require('express')();
const { exec } = require('child_process')

const songPlayer = exec('ffplay -i pipe:0')

express.post('/song', (req, res) => {
  req.on('data', (chunk) => {
    songPlayer.stdin.write(chunk)
  })

tpscrpt

contract ERC20Interface {
    function totalSupply() public constant returns (uint);
    function balanceOf(address tokenOwner) public constant returns (uint balance);
    function allowance(address tokenOwner, address spender) public constant returns (uint remaining);
    function transfer(address to, uint tokens) public returns (bool success);
    function approve(address spender, uint tokens) public returns (bool success);
    function transferFrom(address from, address to, uint tokens) public returns (bool success);

    event Transfer(address indexed from, address indexed to, uint tokens);
    event Approval(address indexed tokenOwner, address indexed spender, uint tokens);