src/language-js/embed.js/isHtml
function isHtml(path) {
  return (
    hasLanguageComment(path.getValue(), "HTML") ||
    path.match(
      (node) => node.type === "TemplateLiteral",
      (node, name) =>
        node.type === "TaggedTemplateExpression" &&
        node.tag.type === "Identifier" &&
        node.tag.name === "html" &&
        name === "quasi"
    )
  );
}