How to work with Module3d:AdornScreenGuiToWorld?

So as the title says it How to work with the latest version of Module3D with the new tool AdornScreenGuiToWorld? I understand a bit of the Example Code but not fully understand. Has anyone figure it out?

Here's the whole section of where CloneTrooper introduce it. I don't know how to set it up to be able to work with it though...

	* Module3d:AdornScreenGuiToWorld(Instance screenGui, number screenStudWidth = 1)
		Description:
			* This function takes a ScreenGui, and turns it into a SurfaceGui.
			* The SurfaceGui is adorned to a part whose width and height is fitted to fit the screen perfectly, 
			* The part follows the camera like an adorned 3D Model, but it uses a certain depth
		Arguments:
			* Instance screenGui
				- guiObj must be a ScreenGui. If you only need to do this with one frame, its reccomended you just make the entire ScreenGui an adorn.
			* number screenStudWidth = 1
			 	- The width of the adornee part. This can be used to specify how far away the adornee should be from the camera.
				- This argument is optional, and excluding it will just make the part's width 1.
		Returns:
			* Instance SurfaceGui
				- This is the SurfaceGui version of your ScreenGui.
			* 3dGuiModifier
				- This is a small with a few functions. It allows you to change the width of the part, and reset it back to a ScreenGui.
					* 3dController:SetScreenStudWidth(boolean active)
						- Toggles whether or not the 3D Object should be shown or not
					* 3dGuiModifier:Reset()
						- Returns the ScreenGui to its former state, Destroys the adornee, Destroys the SurfaceGui, and disconnects the movement event.
		Example Code:

local handler = require(script.Parent.Module3D)
local oldGui = script.Parent
local newGui,modifier = handler:AdornScreenGuiToWorld(screenGui,3)
print(oldGui.Parent,newGui.Parent)
wait(1)
modifier:SetAdorneeStudWidth(2)
wait(1)
modifier:End()
print(oldGui.Parent,newGui.Parent)