#import <Foundation/Foundation.h>

NS_ASSUME_NONNULL_BEGIN

@interface LevelOrder : NSObject

@property (nonatomic, copy) NSString *dueFooter;       
@property (nonatomic, copy) NSString *sonStrictMixCode; 
@property (nonatomic, copy) NSString *unwrapMayCode;    

@end

NS_ASSUME_NONNULL_END