@class STCoreUser, NSSet, STCoreDevice, NSDate; @interface STUsage : NSManagedObject @property (retain, nonatomic) NSDate *lastEventDate; @property (retain, nonatomic) NSSet *blocks; @property (retain, nonatomic) NSDate *lastUpdatedDate; @property (retain, nonatomic) STCoreDevice *device; @property (retain, nonatomic) STCoreUser *user; + (id)fetchRequestMatchingUser:(id)a0 device:(id)a1; @end