https://www.wix.com/corvid/coming-soon
When it is actually released, then there would either be a Wix tutorial example like this.
https://www.wix.com/corvid/forum/corvid-tips-and-updates/example-using-the-places-api-from-google-maps-services
Or, if it is actually going to be a Wix function itself, then it will be noted in their own Wix API Reference.
https://www.wix.com/corvid/reference