CLASSKEYS(std::vector<boost::shared_ptr<ARDOUR::Source> >);
CLASSKEYS(std::list<ArdourMarker*>);
+CLASSKEYS(std::list<TimeAxisView*>);
CLASSKEYS(std::list<ARDOUR::AudioRange>);
CLASSKEYS(std::list<boost::shared_ptr<ARDOUR::Port> >);
CLASSKEYS(std::list<boost::shared_ptr<ARDOUR::Region> >);