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)