我有一个类，可以通过selenium将文件上传到服务器上，从而实现缓慢的internet连接。但我不知道如何通过 selenium 化物来做到这一点。

WebDriverManager.chromedriver().setup();
        WebDriver driver = new ChromeDriver();

        CommandExecutor executor = ((RemoteWebDriver) driver).getCommandExecutor();

        Map map = new HashMap();
        map.put("offline", false);
        map.put("latency", 5);

        map.put("download_throughput", 15000);
        map.put("upload_throughput", 15000);

        Response response = executor.execute(new Command(((RemoteWebDriver) driver).getSessionId(), "setNetworkConditions", ImmutableMap.of("network_conditions", ImmutableMap.copyOf(map))));