public function addCategoryFilter(\Magento\Catalog\Model\Category $category)
 {
     $objectManager = \Magento\Framework\App\ObjectManager::getInstance();
     $this->helper = $objectManager->get('\\Celebros\\ConversionPro\\Helper\\Data');
     if (!$this->helper->isActiveEngine()) {
         return parent::addCategoryFilter($category);
     }
     $this->searchHelper = $objectManager->get('\\Celebros\\ConversionPro\\Helper\\Search');
     $catModel = $objectManager->get('\\Magento\\Catalog\\Model\\Category');
     $category = $catModel->load($this->helper->getCurrentStore()->getRootCategoryId());
     return parent::addCategoryFilter($category);
 }