@class NSString, NSArray; @interface DocumentUnderstanding.DUTopicResult : NSObject <NSCoding, NSCopying> { void /* unknown type, empty encoding */ topicIdentifier; void /* unknown type, empty encoding */ topicNames; } @property (nonatomic, retain) void /* unknown type, empty encoding */ topicSet; @property (nonatomic, copy) NSString *topicIdentifier; @property (nonatomic) void /* unknown type, empty encoding */ topicConfidence; @property (nonatomic, copy) NSArray *topicNames; - (id)init; - (void)encodeWithCoder:(id)a0; - (void).cxx_destruct; - (id)initWithCoder:(id)a0; - (id)copyWithZone:(void *)a0; @end