code: public function addCollection(Varien_Data_Collection_Db $collection)
      {
          $info = Mage::getModel('sheep_debug/collection');
          $info->init($collection);
          $key = $info->getClass();
  
          if (!array_key_exists($key, $this->collections)) {
              $this->collections[$key] = $info;
          }
  
          $this->collections[$key]->incrementCount();
      }
docs: Adds loaded collection
  
  @param Varien_Data_Collection_Db $collection