void connect (boost::shared_ptr<Bundle>, AudioEngine &);
void disconnect (boost::shared_ptr<Bundle>, AudioEngine &);
bool connected_to (boost::shared_ptr<Bundle>, AudioEngine &);
void connect (boost::shared_ptr<Bundle>, AudioEngine &);
void disconnect (boost::shared_ptr<Bundle>, AudioEngine &);
bool connected_to (boost::shared_ptr<Bundle>, AudioEngine &);