  const icon = "";
    const anchorJS = new window.AnchorJS();
    anchorJS.options = {
      placement: 'right',
      icon: icon
    };
    anchorJS.add('.anchored');
    const isCodeAnnotation = (el) => {
      for (const clz of el.classList) {
        if (clz.startsWith('code-annotation-')) {                     
          return true;
        }
      }
      return false;
    }
    const onCopySuccess = function(e) {
      // button target
      const button = e.trigger;
      // don't keep focus
  