Documentation missing for how to recover button events from SimpleContext

[jonathantompson]

Not a bug but more of a comment. There's great documentation in example.py for recovering pose however it's not clear how to also recover button events using the same API.

Likewise there's an example that does not use the SimpleContext api (button_example.py) but it's not clear how to get pose using this alternate API. Also button_example doesn't seem to capture any actual button presses on my vive controller (connected via the watchman USB dongle).