there's a function to identify the type of datatype?[Solved]

dentify what kind of datatype is something and reverse it again to string.

local Obj = Vector3.new()
local Obj2 = game.Players.LocalPlayer

if FunctionToIdentifyDatatype(Obj) == "Vector3" then
print("Vector3.new("..Obj.X..","..Obj.Y..","..Obj.Z..")")
end

if FunctionToIdentifyDatatype(Obj2) == "Instance" then
print("game."..Obj2:GetFullName())
end

--Output
--Vector3.new(0,0,0)
--game.Players.UserName