AsyncTimeout documentation could be improved.

[ledents]

The most important method of the AsyncTimeout object isn't well documented.
Reading the documentation is is not immediately clear that the user is supposed to inherit from AsyncTimeout and override the timedOut method.
This method is even not documented by itself, so event when remembering that there was a method that you where supposed override, you can't find this method in the list of documented methods !
I understand that this method is not part of the public interface, nevertheless, this should be better documented.
A simple usage example code on top would be easier picked up by a quick glance at the documentation page.
Although the timedOut method is mentioned twice in the global class description, it doesn't popup and and can be easily overlooked !