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# containsAllocation(_:)

Returns a Boolean value that indicates whether the residency set contains a specific resource allocation.

```
func containsAllocation(_ anAllocation: any MTLAllocation) -> Bool
```

## Parameters

`anAllocation`

A resource allocation, such as an [`MTLBuffer`](/documentation/Metal/MTLBuffer), [`MTLTexture`](/documentation/Metal/MTLTexture), or [`MTLHeap`](/documentation/Metal/MTLHeap).

## Discussion

---

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