import defer from 'defer-promise'
const deferred = defer()

/* Async function using a callback instead of returning a promise */
doSomething((result, err) => {
  if (err) {
    deferred.reject(err)
  } else {
    deferred.resolve(result)
  }
})

const result = await deferred.promise;

const defer = require('defer-promise')

import defer from 'defer-promise'

import defer from './node_modules/defer-promise/index.js'