code: public function initController($controllerAction = null)
      {
          /** @var Sheep_Debug_Model_Controller $controller */
          $controller = Mage::getModel('sheep_debug/controller');
          $controller->init($controllerAction);
          $this->action = $controller;
      }
docs: Captures information from controller
  
  @param Mage_Core_Controller_Varien_Action $controllerAction