code/Debug/Model/Observer.php
public function onModelLoad(Varien_Event_Observer $observer)
    {
        if (!$this->canCollect()) {
            return;
        }

        $model = $observer->getData('object');
        $this->getRequestInfo()->addModel($model);
    }
public function onModelLoad(Varien_Event_Observer $observer)
    {
        if (!$this->canCollect()) {
            return;
        }

        $model = $observer->getData('object');
        $this->getRequestInfo()->addModel($model);
    }
Listens to model_load_after and records loaded models

@param Varien_Event_Observer $observer