Nelmio\Alice\FixtureBag::with PHP Méthode

    public function with(FixtureInterface $fixture) : self
    {
        $clone = clone $this;
        $clone->fixtures[$fixture->getId()] = clone $fixture;
        return $clone;
    }

 /**
  * @inheritdoc
  */
 public function denormalize(FixtureBag $builtFixtures, string $className, string $unparsedFixtureId, array $specs, FlagBag $flags) : FixtureBag
 {
     if (null === $this->flagParser) {
         throw FlagParserExceptionFactory::createForExpectedMethodToBeCalledIfHasAParser(__METHOD__);
     }
     $idFlags = $this->flagParser->parse($unparsedFixtureId);
     $fixture = new SimpleFixture($idFlags->getKey(), $className, new SpecificationBag(null, new PropertyBag(), new MethodCallBag()));
     $fixture = $fixture->withSpecs($this->specsDenormalizer->denormalize($fixture, $this->flagParser, $specs));
     return $builtFixtures->with(new TemplatingFixture(new SimpleFixtureWithFlags($fixture, $idFlags->mergeWith($flags))));
 }