public static function getAllSessions($selenium_server_url = 'http://localhost:4444/wd/hub', $timeout_in_ms = 30000)
    {
        $executor = new HttpCommandExecutor($selenium_server_url);
        $executor->setConnectionTimeout($timeout_in_ms);

        $command = new WebDriverCommand(
            null,
            DriverCommand::GET_ALL_SESSIONS,
            []
        );

        return $executor->execute($command)->getValue();
    }