TypedPropertyFromColumnTypeRector

Complete @var annotations or types based on @ORM\Column

 use Doctrine\ORM\Mapping as ORM;

 class SimpleColumn
 {
     /**
      * @ORM\Column(type="string")
      */
-    private $name;
+    private string|null $name = null;
 }

Configure your rector.php:

<?php

use Rector\Config\RectorConfig;
use Rector\Doctrine\CodeQuality\Rector\Property\TypedPropertyFromColumnTypeRector;

return RectorConfig::configure()
    ->withRules([
        TypedPropertyFromColumnTypeRector::class,
    ]);
SETS:  Code Quality