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# UIView.Invalidations.Tuple

A change that invalidates a combination of factors covered by the other invalidation types.

```
struct Tuple<Invalidation1, Invalidation2> where Invalidation1 : UIViewInvalidating, Invalidation2 : UIViewInvalidating
```

## Overview

The system uses this type when a change invalidates multiple aspects of a view. Use a tuple of the static values defined in [`UIViewInvalidating`](/documentation/UIKit/UIViewInvalidating) when more than one invalidation type applies to a change.

## Topics

### Creating the invalidation structure

[`init(Invalidation1, Invalidation2)`](/documentation/UIKit/UIView/Invalidations/Tuple/init(_:_:))

Creates an invalidation structure with multiple invalidations.

## Relationships

### Conforms To

[`UIViewInvalidating`](/documentation/UIKit/UIViewInvalidating)

---

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