nst selector = 'span[' + cellAttr + '][' + lineAttr + ']';
          return selector;
        }
        const selectCodeLines = (annoteEl) => {
          const doc = window.document;
          const targetCell = annoteEl.getAttribute("data-target-cell");
          const targetAnnotation = annoteEl.getAttribute("data-target-annotation");
          const annoteSpan = window.document.querySelector(selectorForAnnotation(targetCell, targetAnnotation));
          const lines = annoteSpan.getAttribute("data-code-l