text: const crypto = require("crypto");
  
  const jsonPretty = data => JSON.stringify(data, null, " ");
  
  const md5 = data =>
    crypto
      .createHash("md5")
      .update(data)
      .digest("hex");
  
  const wait = delay => new Promise(resolve => setTimeout(resolve, delay));
  
  const epochNow = () => Math.floor(Date.now() / 1000);
  
  module.exports = {
    jsonPretty,
    md5,
    wait,
    epochNow,
  };
  