@property (nonatomic, retain) NSMutableDictionary *folders;
@property (nonatomic, retain) NSMutableDictionary *objects;
@property (readonly, retain) NSArray *sortedContents;
@property (nonatomic, retain) NSMutableDictionary *folders;
@property (nonatomic, retain) NSMutableDictionary *objects;
@property (readonly, retain) NSArray *sortedContents;