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# CLKComplicationWidgetMigrationConfiguration

An abstract class that specifies WidgetKit complications.

```
class CLKComplicationWidgetMigrationConfiguration
```

## Overview

The [`CLKComplicationWidgetMigrationConfiguration`](/documentation/ClockKit/CLKComplicationWidgetMigrationConfiguration) class is the basis for all classes that describe watchOS complications in WidgetKit. Because it’s an abstract class, you don’t instantiate it directly. Instead, create one of its concrete subclasses: [`CLKComplicationStaticWidgetMigrationConfiguration`](/documentation/ClockKit/CLKComplicationStaticWidgetMigrationConfiguration), [`CLKComplicationAppIntentWidgetMigrationConfiguration`](/documentation/ClockKit/CLKComplicationAppIntentWidgetMigrationConfiguration), or [`CLKComplicationIntentWidgetMigrationConfiguration`](/documentation/ClockKit/CLKComplicationIntentWidgetMigrationConfiguration).

## Relationships

### Inherits From

[`NSObject-swift.class`](/documentation/ObjectiveC/NSObject-swift.class)

### Conforms To

[`NSObjectProtocol`](/documentation/ObjectiveC/NSObjectProtocol)

[`Hashable`](/documentation/Swift/Hashable)

[`CustomStringConvertible`](/documentation/Swift/CustomStringConvertible)

[`CustomDebugStringConvertible`](/documentation/Swift/CustomDebugStringConvertible)

[`CVarArg`](/documentation/Swift/CVarArg)

[`Equatable`](/documentation/Swift/Equatable)

[`NSCopying`](/documentation/Foundation/NSCopying)

### Inherited By

[`CLKComplicationStaticWidgetMigrationConfiguration`](/documentation/ClockKit/CLKComplicationStaticWidgetMigrationConfiguration)

[`CLKComplicationAppIntentWidgetMigrationConfiguration`](/documentation/ClockKit/CLKComplicationAppIntentWidgetMigrationConfiguration)

[`CLKComplicationIntentWidgetMigrationConfiguration`](/documentation/ClockKit/CLKComplicationIntentWidgetMigrationConfiguration)

---

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