@interface DocumentUnderstanding.DUDocumentIdentifier : NSObject <NSCoding, NSCopying, NSSecureCoding> { void /* unknown type, empty encoding */ documentNamespace; void /* unknown type, empty encoding */ documentID; void /* unknown type, empty encoding */ spotlightBundleID; void /* unknown type, empty encoding */ spotlightDomainIdentifier; void /* unknown type, empty encoding */ spotlightUniqueIdentifier; } @property (class, nonatomic) BOOL supportsSecureCoding; - (id)init; - (void)encodeWithCoder:(id)a0; - (void).cxx_destruct; - (id)initWithCoder:(id)a0; - (id)copyWithZone:(void *)a0; @end