core-bundle/src/Config/Loader/XliffFileLoader.php
public function load($file, $type = null): string
    {
        return $this->convertXlfToPhp((string) $file, ($type ?: 'en'));
    }
public function load($file, $type = null): string
    {
        return $this->convertXlfToPhp((string) $file, ($type ?: 'en'));
    }
{@inheritdoc}