*/
 class User implements UserInterface, PasswordAuthenticatedUserInterface {
        /**
-        * @var ?integer
+        * Primary key
         */
-       protected ?int $id;
+       protected ?int $id = null;
 
        /**
-        * @var \DateTime
+        * Create datetime
         */
        protected \DateTime $created;
 
        /**
-        * @var \DateTime
+        * Update datetime
         */
        protected \DateTime $updated;
 
        /**
-        * @var Doctrine\Common\Collections\Collection
+        * Groups collection
         */
        protected Collection $groups;