Ansible Cache Plugin - How do I validate what is actually in memory cache

So I have been writing an Elasticsearch Cache Plugin https://github.com/eperry/ansible-plugin-cache-elasticsearch

So it is saving very well, and I can validate what I read/write to a file, elasticsearch. But how do I know Ansible is actually seeing the data I want it to see

I mean there is no Ansible function like --list-hosts or --list-tags to dump what ansible sees in cache. I don’t know absolutely that the settings I have in cache are the ones ansible is acting against.

Maybe I am being overly paranoid but it would be nice when a value was pulled from cache vs did not exist, or gather facts had to load it.