static void GetInformationOnMacro ( [UEdGraph](API\Runtime\Engine\EdGraph\UEdGraph) * MacroGraph, class [UK2Node_Tunnel](API\Editor\BlueprintGraph\UK2Node_Tunnel) *& EntryNode, class [UK2Node_Tunnel](API\Editor\BlueprintGraph\UK2Node_Tunnel) *& ExitNode, bool & bIsPure )