function innerHTML(htmlFragment) {
  /** `htmlFragment` will be parsed as if it was set to the `bodyElement`'s `innerHTML` property. */
  const parsedFragment = parse5.parseFragment(bodyElement, htmlFragment);

  /** `serialize` returns back a string from the parsed nodes */
  return parse5.serialize(parsedFragment);
}
`bodyElement` will be used as a `context` (The place where we run `innerHTML`)