code: public function addModel(Mage_Core_Model_Abstract $model)
      {
          $modelInfo = Mage::getModel('sheep_debug/model');
          $modelInfo->init($model);
          $key = $modelInfo->getClass();
  
          if (!array_key_exists($key, $this->models)) {
              $this->models[$key] = $modelInfo;
          }
  
          $this->models[$key]->incrementCount();
      }
docs: Adds loaded model
  
  @param Mage_Core_Model_Abstract $model