lib/Yucca/Component/EntityManager.php
public function refresh(ModelInterface $model)
    {
        return $model->refresh($this->mappingManager, $this->selectorManager, $this);
    }
public function refresh(ModelInterface $model)
    {
        return $model->refresh($this->mappingManager, $this->selectorManager, $this);
    }
Use this when retrieving a serialized object (from session, for example)
It bounds yucca's manager into the object

@param ModelInterface $model

@return EntityManager