How to clone multiple things with a private module?

So, here is the current code to clone ONE object with the private module:

local module = {}
password = 12345
function module.ReturnTheThing(argument)
if argument == password then
return script.Script:Clone()
end
end

return module

I then tried to clone another thing by this:

local module = {}
password = 12345
function module.ReturnTheThing(argument)
if argument == password then
return script.Script:Clone()
return script.Part:Clone()
end
end

return module

It didn't work