Define $session propery

Author: denispapec

app/code/Magento/ImportExport/Model/History.php

@@ -42,6 +42,11 @@ class History extends \Magento\Framework\Model\AbstractModel
      */
     protected $reportHelper;
 
+    /**
+     * @var \Magento\Backend\Model\Auth\Session
+     */
+    private $session;
+
     /**
      * Class constructor
      *