Can someone show me how enum works? Im really new to scripting and have no experence

I've been trying to create a game where is you have a certain gamepass and press a letter (lets say "B") it activates a power here's what I have:

local UIS = game:GetService("UserInputService")

UIS.InputBegan:connect(function(Input)
    local MouseInput = Input.UserInputType -- Get all mouse inputs
    local KeyCode = Input.KeyCode -- Get all keyboard inputs
 
  
    if KeyCode == Enum.KeyCode.T then
        game.Workspace.InfiniteTsukuyomi.Parent = game.Lighting
wait(10)
game.Workspace.InfiniteTsukuyomi.Parent = game.Workspace

    end
end)

Everything works fine other than the enum. I tried it with a simple printing script but that didn't do anything.