@class NSUUID, CXJoinCallActivity, NSDate; @interface CXJoinCallActivitySession : NSObject @property (class, readonly) BOOL supportsSecureCoding; @property (retain, nonatomic) NSDate *timestamp; @property (retain, nonatomic) NSUUID *UUID; @property (retain, nonatomic) CXJoinCallActivity *activity; @property (nonatomic) unsigned long long state; - (unsigned long long)hash; - (void)encodeWithCoder:(id)a0; - (id)description; - (void).cxx_destruct; - (BOOL)isEqual:(id)a0; - (id)initWithCoder:(id)a0; - (id)copyWithZone:(struct _NSZone { } *)a0; - (id)initWithActivity:(id)a0; - (BOOL)isEqualToJoinCallActivitySession:(id)a0; @end