Examples/test-suite/multi_import.h - third_party/swig - Git at Google

 class XXX
 {
 	public:
 		int testx() { return 0;}
 };

 class YYY : public XXX
 {
 	public:
 		int testy() { return 1;}
 };

 class ZZZ : public XXX
 {
 	public:
 		int testz() { return 2;}
 };
	class XXX
	{
	public:
	int testx() { return 0;}
	};

	class YYY : public XXX
	{
	public:
	int testy() { return 1;}
	};

	class ZZZ : public XXX
	{
	public:
	int testz() { return 2;}
	};