Async call with Redis - I can find any docs / I want to use RQ-scheduler

Hello guys,

I know that there is some async handling with RQ within ERPnext

  1. Is seems I can’t find any related topics or doc on this subject
  2. I want to use https://github.com/ui/rq-scheduler for a small app I build. How I can get the redis instance conf programmatically ? I mean something
 from app import config --> print (config['redis_queue']) or something like that

New in Version 7 (still not documented good enough)
https://frappe.github.io/frappe/user/en/guides/app-development/running-background-jobs