Immediately invoked [pify](https://github.com/sindresorhus/pify)
npm install pifiImmediately invoked pify
``sh`
npm install --save pifi
`js
const pifi = require('pifi')
const fs = require('fs')
async function main () {
console.log('Reading readme.md in 5 seconds')
await pifi(cb => setTimeout(cb, 5000))
console.log('Readind readme.md now')
const content = await pifi(cb => fs.readFile('readme.md', cb))
console.log('readme.md contains:', content)
}
`
Immediately invoke fn` with a node-style callback, and return a promise that settles when the callback is called.