Zend\Mvc\MvcEvent::setResult PHP Method

    public function setResult($result)
    {
        $this->setParam('__RESULT__', $result);
        $this->result = $result;
        return $this;
    }

 /**
  * @param MvcEvent $e
  * @return mixed|void
  */
 public function onDispatch(MvcEvent $e)
 {
     $viewModel = new ViewModel();
     $valid = $this->collageData->isValid();
     $data = $this->authenticationService->getAuthData();
     $viewModel->setVariable('validInputs', $this->collageData->getValidInput());
     $viewModel->setVariable('user', $data->user);
     if (!$valid) {
         $viewModel->setTemplate('frontend/gallery/error');
         $viewModel->setVariable('messages', $this->collageData->getMessages());
         return $e->setResult($viewModel);
     }
     $uniqueId = md5(serialize($this->collageData->getValues()));
     if ($this->sessionContainer->valuesHash != $uniqueId) {
         $collectionService = $this->collectionFactory->createCollection($this->collageData);
         $images = $collectionService->getImages($this->collageData);
     } else {
         $images = $this->sessionContainer->images;
     }
     $collageHttpPath = $this->collageService->create($images, $uniqueId, $this->collageData->getWidth(), $this->collageData->getHeight(), $this->collageData->getLimit());
     if ($collageHttpPath !== false) {
         $viewModel->setVariable('collageHttpPath', $collageHttpPath);
     }
     $viewModel->setTemplate('frontend/gallery/index');
     return $e->setResult($viewModel);
 }