extern bool SetPropertyFromNode( const TreeNode& node, Property::Type type, Property::Value& value, const Replacement& replacements );
extern Actor SetupSignalAction(ConnectionTracker* tracker, const TreeNode &root, const TreeNode &child, Actor actor);
extern Actor SetupPropertyNotification(ConnectionTracker* tracker, const TreeNode &root, const TreeNode &child, Actor actor);
extern bool SetPropertyFromNode( const TreeNode& node, Property::Type type, Property::Value& value, const Replacement& replacements );
extern Actor SetupSignalAction(ConnectionTracker* tracker, const TreeNode &root, const TreeNode &child, Actor actor);
extern Actor SetupPropertyNotification(ConnectionTracker* tracker, const TreeNode &root, const TreeNode &child, Actor actor);