Nelmio\Alice\Generator\Resolver\Parameter\Chainable\RecursiveParameterResolver::mergeResults PHP Method

    private function mergeResults(ParameterBag $previous, ParameterBag $new) : ParameterBag
    {
        foreach ($previous as $key => $value) {
            $new = $new->with(new Parameter((string) $key, $value));
        }
        return $new;
    }