<?php

namespace PHPSTORM_META {

    use App\Manufacturer\Entity\Manufacturer;
    use App\Part\Entity\Part;
    use App\Shared\Doctrine\Registry;

    override(Registry::get(), map(0, [
        '' => '@',
    ]));

    /** @var Registry $registry */
    $registry = null;

    $part = $registry->get(Part::class, null);

    $registry->get(Manufacturer::class, $part->manufacturerId)-> // autocomplete ok

    if ($part instanceof Part) {
        $registry->get(Manufacturer::class, $part->manufacturerId)-> // autocomplete empty
    }
}