This page is documenting a work in progress feature do not assume it is available on the mainline branch.
You may find it developed on a topic branch
Describe why this change/improvement in 10 lines most.
If it is a new api describe it, how it should work and what replaces. Put the user-facing information here.
Use alerts to point to other blueprints
// code snippets here ...
How it is implemented internally. Put the information useful to implement it or extend it here.