private function fixCs(array $files): void
    {
        $fileInfos = [];
        foreach ($files as $file) {
            $fileInfos[] = new \SplFileInfo($file);
        }

        $fixers = (new FixerFactory())
            ->registerBuiltInFixers()
            ->useRuleSet(new RuleSet([
                '@Symfony' => true,
                'array_syntax' => ['syntax' => 'short'],
                'phpdoc_order' => true,
                'declare_strict_types' => true,
            ]))
            ->getFixers();

        $runner = new Runner(
            new \ArrayIterator($fileInfos),
            $fixers,
            new NullDiffer(),
            null,
            new ErrorsManager(),
            new Linter(),
            false,
            new NullCacheManager()
        );
        $runner->fix();
    }