How to use the @lumino/domutils.ElementExt.scrollIntoViewIfNeeded function in @lumino/domutils

let item = result.item;
        let indices = result.indices;
        let active = i === activeIndex;
        content[i] = renderer.renderItem({ item, indices, active });
      }
    }

    // Render the search result content.
    VirtualDOM.render(content, contentNode);

    // Adjust the scroll position as needed.
    if (activeIndex < 0 || activeIndex >= results.length) {
      contentNode.scrollTop = 0;
    } else {
      let element = contentNode.children[activeIndex];
      ElementExt.scrollIntoViewIfNeeded(contentNode, element);
    }
  }