Async system index through python AsyncElasticsearch prevented by default?

Hi all,

I'm using the AsyncElasticsearch client in python, recently I started getting the warning that direct access to async-search will be prevented. Does this mean at some point it will no longer be possible to use the client asynchronously? Will there be an alternative way to use Elasticsearch async in Python?
It seems like a pretty big deal, but I can't find a lot of information on this.

Thank you,
Martijn