Symfony\Component\Translation\Translator::setLocale PHP Метод

    public function setLocale($locale)
    {
        $this->locale = $locale;
    }

 /**
  * {@inheritdoc}
  */
 public function execute(InputInterface $input, OutputInterface $output)
 {
     if (!$input->getOption('lang')) {
         return;
     }
     $this->translator->setLocale($input->getOption('lang'));
 }