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  "identifier" : "/documentation/CoreLocation/CLLocationManager/requestHistoricalLocations(purposeKey:sampleCount:completionHandler:)",
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# requestHistoricalLocations(purposeKey:sampleCount:completionHandler:)

```
func requestHistoricalLocations(purposeKey: String, sampleCount: Int, completionHandler handler: @escaping @Sendable ([CLLocation], (any Error)?) -> Void)
```

```
func historicalLocations(purposeKey: String, sampleCount: Int) async throws -> [CLLocation]
```

## Discussion

> Important:
> You can call this method from synchronous code using a completion handler, as shown on this page, or you can call it as an asynchronous method that has the following declaration:
> 
> ```swift
> func historicalLocations(purposeKey: String, sampleCount: Int) async throws -> [CLLocation]
> ```
> 
> For information about concurrency and asynchronous code in Swift, see <doc://com.apple.documentation/documentation/Swift/calling-objective-c-apis-asynchronously>.

---

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