How to use DLSS?

Graphics
#1

I followed instruction at FlaxEngine/DLSS but when I try to access DLSS from C# script:

var dlss = PluginManager.GetPlugin<DLSS>();

The code editor show that DLSS namespace not found.

#2

Ensure to put that DLSS.ConditionalImport(options, options.PrivateDependencies); in a build script of the code mode to access API (see docs down below).