code: public function render(Mage_Core_Block_Abstract $block, $blockContent, $id) {
  
          $helper = Mage::helper('aoe_templatehints/blockInfo'); /* @var $helper Aoe_TemplateHints_Helper_BlockInfo */
  
          $path = $helper->getBlockPath($block);
          $blockInfo = $helper->getBlockInfo($block);
  
          $this->aStatistics[$blockInfo['cache-status']]++;
  
          $wrappedHtml = sprintf(
              '<div id="tpl-hint-%1$s" class="%2$s">
                  %3$s
                  <div id="tpl-hint-%1$s-title" style="display: none;">%4$s</div>
                  <div id="tpl-hint-%1$s-infobox" style="display: none;">%5$s</div>
              </div>',
              $id,
              $this->getHintClass() . ' ' . $blockInfo['cache-status'],
              $blockContent,
              $helper->renderTitle($blockInfo),
              $this->renderBox($blockInfo, $path)
          );
  
          $showStatistics = false; // experimental (want to add some styling here...)
          if ($showStatistics && $blockInfo['name'] == 'core_profiler') {
              $wrappedHtml .= '<pre>'.print_r($this->aStatistics, true).'</pre>';
          }
  
          return $wrappedHtml;
      }
docs: Render template hint
  
  @param Mage_Core_Block_Abstract $block
  @param $blockContent
  @param $id
  @return string|void