Netson\L4gettext\L4gettextServiceProvider::registerExtractCommand PHP Метод

    public function registerExtractCommand()
    {
        // add extract command to artisan
        $this->app['l4gettext.extract'] = $this->app->share(function ($app) {
            return new Commands\ExtractCommand(new ProcessBuilder());
        });
        $this->commands('l4gettext.extract');
    }