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# HKAsyncSequenceQuery

A protocol that defines a method for running queries that returns results using an asynchronous sequence.

```
protocol HKAsyncSequenceQuery
```

## Topics

### Running Queries

[`associatedtype Sequence : AsyncSequence`](/documentation/HealthKit/HKAsyncSequenceQuery/Sequence)

[`func results(for: HKHealthStore) -> Self.Sequence`](/documentation/HealthKit/HKAsyncSequenceQuery/results(for:))

Initiates a query that returns its results using an asynchronous sequence.

## Relationships

### Conforming Types

[`HKHeartbeatSeriesQueryDescriptor`](/documentation/HealthKit/HKHeartbeatSeriesQueryDescriptor)

[`HKWorkoutEffortRelationshipQueryDescriptor`](/documentation/HealthKit/HKWorkoutEffortRelationshipQueryDescriptor)

[`HKQuantitySeriesSampleQueryDescriptor`](/documentation/HealthKit/HKQuantitySeriesSampleQueryDescriptor)

[`HKAnchoredObjectQueryDescriptor`](/documentation/HealthKit/HKAnchoredObjectQueryDescriptor)

[`HKWorkoutRouteQueryDescriptor`](/documentation/HealthKit/HKWorkoutRouteQueryDescriptor)

[`HKStatisticsCollectionQueryDescriptor`](/documentation/HealthKit/HKStatisticsCollectionQueryDescriptor)

[`HKElectrocardiogramQueryDescriptor`](/documentation/HealthKit/HKElectrocardiogramQueryDescriptor)

[`HKActivitySummaryQueryDescriptor`](/documentation/HealthKit/HKActivitySummaryQueryDescriptor)

---

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