Then please update the docs. They aren't mentioned anywhere.
As for being specific:
- Fluid - Your first link is of API for IOS, where I've provided a general one that's for all (plus I work on Android) and not of an API.
As for your second link, it becomes very weird as the class belongs to banner ads, yet your link is of native ads (and again it's of IOS and not Android) ...
- SearchAdView - if it's not supported by Admob, why is it there? Where and when would I see it? Where are the docs about what it is and how it looks like?
- WIDE_SKYSCRAPER - what do you mean that it's for "mediation ad networks only"? You mean that Admob doesn't support it as an ad network, but others might?