Confusion about scrolling

I haven't been able to find what the final word on scrolling in Android is. According to the python source code, there is a method scroll. But it doesn't work.

According to the Android docs, there's a thing called UiScrollable. But it doesn't work.

According to the appium docs, there's a thing called TouchActions. But it doesn't work.

driver.execute_script("mobile: scroll", {"direction": 'down', 'element': el})
If you do this, you are told that "the method has not yet been implemented".

So what is the final word on scrolling? That it's completely broken? That scroll is supposed to work, and that there is something wrong with my setup?

首先跟踪 Python 客户端的 scroll 方法，并将其与报告中提到的 Android UiScrollable、Appium TouchActions 和 mobile: scroll 入口进行比较。如果可能，复现这些示例，并记录支持哪些滚动方式、哪些方式会失败，以及报告中的未实现方法是否属于预期情况。