text: let fetchedUrls = {};
  export function dynamicImport(url) {
      if (fetchedUrls[url]) {
          return;
      }
  
      fetchedUrls[url] = true;
      let script = document.createElement('script');
      script.setAttribute('src', url);
      script.setAttribute('type', 'module');
      document.getElementsByTagName('head')[0].appendChild(script);
  }
  