Function argument expected near 'Test'? [NOT SOLVED]

function Test()
Gui.MouseButton1Down:connect(function()
  print("WORKS")
    wait(5)
    Script.Parent.TextButton:Destroy
Test() --Here....

script.Parent.MouseButton1Down:connect()

Edit - Oh derp, for this function, don't have it inside a unrunnable function.

--function Test() This is not needed.
script.Parent.MouseButton1Down:connect(function()
  print("WORKS")
    wait(5)
    script.Parent:Destroy() --Lua is case sensitive, it's a lowercase script. Is there a textbutton in a textbutton? Edit; Forgot that Destroy was a method, it should have parenthesis after it.
end) --You needed to end the function. And add a ) to the end to finish the function.