How to download a webpage with puppeteer and convert the images to base64 so the final output is a single page file?

Question

I have the following code which scrapes a webpage, removes the javascript, and saves it to disk:

const puppeteer = require('puppeteer');
const fs = require('fs');

async function run() {
  const browser = await puppeteer.launch();
  const page = await browser.newPage();
  await page.goto('http://example.com', {
    waitUntil: 'networkidle2'
  });

  await page.waitFor(1 * 2000);

  await page.evaluate(() => {
    for (const script of document.body.querySelectorAll('script'))
      script.remove();
  });

  const result = await page.content();

  fs.writeFileSync('result.html', result);
  await browser.close();
}

run();

I would also like to convert all images to base64. How can I do this with JS and puppeteer?