@class NSString;
@interface SFTopic : NSObject <SFTopic>
@property (class, readonly) BOOL supportsSecureCoding;
@property (copy, nonatomic) NSString *identifier;
@property (readonly) unsigned long long hash;
@property (readonly) Class superclass;
@property (readonly, copy) NSString *description;
@property (readonly, copy) NSString *debugDescription;
- (id)initWithIdentifier:(id)a0;
- (void)encodeWithCoder:(id)a0;
- (void).cxx_destruct;
- (BOOL)isEqual:(id)a0;
- (id)initWithCoder:(id)a0;
- (id)copyWithZone:(struct _NSZone { } *)a0;
@end