code: public function getBlocksAsArray()
      {
          $helper = Mage::helper('sheep_debug');
          $data = array();
          foreach ($this->getBlocks() as $block) {
              $data[] = array(
                  'name'     => $block->getName(),
                  'class'    => $block->getClass(),
                  'template' => $block->getTemplateFile(),
                  'time (ms)' => $block->getRenderedDuration() ? $helper->formatNumber($block->getRenderedDuration(), 0) : '',
                  'count'    => $block->getRenderedCount()
              );
          }
  
          return $data;
      }
docs: Returns information about instantiated/rendered blocks
  
  @return array