Cannot require ESM

also-broken.cjs

const isPromise = import('./third-party-is-promise.mjs')

console.log(typeof isPromise)
console.log('then method', typeof isPromise.then)

broken.cjs

const isPromise = require('./third-party-is-promise.mjs')

console.log(typeof isPromise)

package.json

{
  "name": "temp123",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "author": "",
  "license": "ISC"
}

third-party-is-promise.mjs

export default function isPromise(obj) {
  return !!obj && (typeof obj === 'object' || typeof obj === 'function') && typeof obj.then === 'function';
}

working.mjs

import isPromise from './third-party-is-promise.mjs'

console.log(typeof isPromise)