@class NSObject, NSMutableDictionary, NSDateInterval; @protocol HKHeartRateQueryHandler, OS_dispatch_queue; @interface HKHeartRateQueryUtility : NSObject @property (weak, nonatomic) id<HKHeartRateQueryHandler> queryHandler; @property (retain, nonatomic) NSDateInterval *dateInterval; @property (nonatomic) long long timeScope; @property (retain, nonatomic) NSObject<OS_dispatch_queue> *clientQueue; @property (retain, nonatomic) NSObject<OS_dispatch_queue> *resourceQueue; @property (retain, nonatomic) NSMutableDictionary *sampleResults; @property (copy, nonatomic) id /* block */ resultsHandler; + (id)_minMaxStatisticsFromChartPoints:(id)a0 dateInterval:(id)a1; + (id)_orderedDisplayTypeContextResults:(id)a0; + (void)enumerateDisplayTypeContextsWithBlock:(id /* block */)a0; - (void).cxx_destruct; - (id)initWithQueryHandler:(id)a0 dateInterval:(id)a1 timeScope:(long long)a2 resultsHandler:(id /* block */)a3; - (void)setupQueries; @end