Symfony Uid as primary identifier

EntityIdTrait.php

<?php

namespace App\Entity\Traits;

use Doctrine\ORM\Mapping as ORM;
use Symfony\Component\Uid\Uuid;

trait EntityIdTrait
{
    /**
     * @ORM\Id
     * @ORM\Column(type="string", length=36, unique=true)
     * @ORM\GeneratedValue(strategy="CUSTOM")
     * @ORM\CustomIdGenerator(class="App\Entity\Generator\UuidGenerator")
     */
    protected $id;

    public function getId(): ?Uuid
    {
        return $this->id;
    }
}