This feature is invite-only from AdSense, I believe, so I'll not go into specifics surrounding it. However, the AMP website contains some code for it, and these pages are visible by anyone - [
ampproject.org...] - so I'll keep everything I say relevant to this public domain page.
Invited to take part, I've implemented the code on my website, but am only seeing the following error in the console:
amp-auto-ads config xhr failed: SyntaxError: Unexpected end of JSON input
Is anyone else running this code successfully? I'd be interested to know.