Is the tags section valid in the info.yml file? I see in the devel.info.yml file a section named tags

tags:
- developer


But I can't find it on the documentation page. Is the tags section valid in the info.yml file or is it just an error?
I do not think it is valid yet. There is an issue on this

https://www.drupal.org/project/drupal/issues/1868444