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# resolveRelativeFanSpeedSetting(for:with:)

Resolves the requested relative qualifier for the fan speed.

```
optional func resolveRelativeFanSpeedSetting(for intent: INSetClimateSettingsInCarIntent, with completion: @escaping @Sendable (INRelativeSettingResolutionResult) -> Void)
```

## Parameters

`intent`

The intent object containing details about the user’s request. Use this object to get the initial information, if any, provided by the user.

`completion`

The block to execute with the resolution. You must execute this block at some point during your implementation of this method. This block has no return value and takes the following parameter:

- resolutionResult: The object containing the details of your proposed resolution. For successful resolutions, create a resolution object that contains the [`INRelativeSetting`](/documentation/Intents/INRelativeSetting) value that you intend to use. If the intent doesn’t apply to this setting, return a result that indicates the value isn’t required.

## Discussion

Implement this method to resolve the fan speed setting. Use the intent object to identify the fan speed index specified by the user. This maps to the next or previous fan speed setting in the vehicle.

---

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