private function denormalizeTemporaryFixture(FixtureBag $builtFixtures, string $className, array $specs, FlagBag $flags) : array
{
$tempFixtureId = uniqid('temporary_id');
$builtFixtures = $this->denormalizer->denormalize($builtFixtures, $className, $tempFixtureId, $specs, $flags);
$tempFixture = $builtFixtures->get($tempFixtureId);
$builtFixtures = $builtFixtures->without($tempFixture);
return [$tempFixture, $builtFixtures];
}