public class org.example.ClassA {
	public org.example.ClassB Foo(org.example.ClassC);
	public org.example.ClassB Bar(org.example.ClassC);
	public org.example.ClassB an_attribute;
}
public class org.example.ClassB extends org.example.ClassA {
	public org.example.ClassA Foo(org.example.ClassC);
}