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Controller/Adminhtml/CategoryWidget/Save.php

 <?php
 namespace NicolasBejean\CategoryWidget\Controller\Adminhtml\CategoryWidget;
 
+use \Magento\Backend\App\Action\Context;
 use \Magento\Backend\Model\View\Result\Redirect;
 use \Magento\Framework\Controller\ResultInterface;
-use \NicolasBejean\CategoryWidget\Controller\Adminhtml\CategoryWidget as CategoryWidgetController;
-use \Magento\Backend\App\Action\Context;
+use \Magento\Framework\App\ObjectManager;
+use \Magento\Framework\App\Request\DataPersistorInterface;
+use \Magento\Framework\Registry;
+
 use \NicolasBejean\CategoryWidget\Api\CategoryWidgetRepositoryInterface;
+use \NicolasBejean\CategoryWidget\Controller\Adminhtml\CategoryWidget as CategoryWidgetController;
 use \NicolasBejean\CategoryWidget\Model\CategoryWidget;
 use \NicolasBejean\CategoryWidget\Model\CategoryWidgetFactory;
-use \Magento\Framework\App\Request\DataPersistorInterface;
-use \Magento\Framework\Registry;
-use \Magento\Framework\App\ObjectManager;
+
 use \Exception;
 
 /**