Getting the Luau optimize level at runtime safely

LuauOptimizeLevel.lua

local function getOptimizeLevel()
    local function dupclosure()
      return function() end
    end

    local O0 = dupclosure() ~= dupclosure() 

    local function inlinefunction()
      return debug.info(1, "f")
    end
    
    local f = debug.info(1, "f")

    local O2 = f == inlinefunction()

    return if O0 then "O0" else (O2 and "O2" or "O1") 
end;

print(getOptimizeLevel())

这样做的目的是什么？