Source Generators are a new C# feature currently in preview that runs during compilation and can inspect your program to produce additional files that are compiled together with the rest of your code. Roslyn PMs Chris Sienkiewicz and Phillip Carter show how this works and how you can benefit from it in Visual Studio. 

For more tips like this, check out the working remotely playlist at www.youtube.com/FoetronAcademy . Also, if you need any further assistance then you can raise a support ticket and get it addressed.