I am looking for an updated documentation around the CSOM api for SharePoint online, for the life of my I cannot find it via google/bing and links on the news docs site return to older MSDN pages.
After finding a page from NuGet, I have found this location:
which is the API reference under SharePoint 2013 for SharePoint Online.
So in the blog, there is a reference to the audience target property, but it does not exist in:
https://msdn.microsoft.com/en-us/library/office/microsoft.sharepoint.client.renderlistdataparameters... so I can only assume this is out o date or the wrong resource.
I haven't yet found any official documentation, but found the next best thing released by Sergei Sergeev http://spblog.net/post/2018/10/14/Whats-new-and-whats-changed-in-SharePoint-Online-REST-API-in-Septe...
There is a tool that explores the SharePoint REST API: https://s-kainet.github.io/sp-rest-explorer/
Hope this helps.