addSearch on Setting class undefined

Hey all. I know the plugin API is very much in flux so do with this as you see fit, but I just wanted to report that in the obsidian.d.ts type declaration the Setting class says it has an addSearch method but when trying to use it in 0.9.20 it is undefined.

Thanks for all the hard work everyone does. The fact we can write plugins at all is awesome so I greatly appreciate it!