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# springTimingParameters

The spring-based timing parameters to use.

```
var springTimingParameters: UISpringTimingParameters? { get }
```

## Discussion

Implement this property and use it to provide spring-based timing information. If the value of the [`timingCurveType`](/documentation/UIKit/UITimingCurveProvider/timingCurveType) property is [`UITimingCurveType.spring`](/documentation/UIKit/UITimingCurveType/spring) or [`UITimingCurveType.composed`](/documentation/UIKit/UITimingCurveType/composed), you must return an object from this property.

For more information about configuring spring-based timing parameters, see [`UISpringTimingParameters`](/documentation/UIKit/UISpringTimingParameters).

---

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