+@property (nonatomic, assign) IOHIDElementCookie cookie;
+@property (nonatomic, copy) NSArray *children;
+@property (nonatomic, weak) id base;
+@property (nonatomic, copy) NSString *name;
+@property (nonatomic, assign) BOOL active;
+@property (nonatomic, readonly) float magnitude;
+@property (readonly) NSString *uid;