What is a node proxy

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2

NodeProxy is the type returned by gui.get_node() and is what you need to pass to most GUI functions:

function on_message(self, message_id, message, sender)
	if message_id == hash("enable-my_house_sign") then
        local box = gui.get_node("box")
		gui.set_enabled(box, "true")
	end
end
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