Nette\DI\Config\Adapters\PhpAdapter::dump PHP Method

    public function dump(array $data)
    {
        return "<?php // generated by Nette \nreturn " . Nette\PhpGenerator\Helpers::dump($data) . ';';
    }

 private function savePackageConfig()
 {
     $config = new PhpAdapter();
     file_put_contents($this->getPackageConfigPath(), $config->dump($this->packageConfig));
 }