infinito/application/src/DataFixtures/UsersFixtures.php

<?php

namespace App\DataFixtures;

use Doctrine\Bundle\FixturesBundle\Fixture;
use Doctrine\Common\Persistence\ObjectManager;
use App\Entity\User;

class UsersFixtures extends Fixture
{
    public function load(ObjectManager $manager)
    {
    }

    public function adminUser()
    {
        $admin = new User();
        $admin->getSource();
    }
}