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# CMTagCollectionContainsTag

Determines if a tag collection contains a specific tag.

```
extern Boolean CMTagCollectionContainsTag(CMTagCollectionRef tagCollection, CMTag tag);
```

## Parameters

`tagCollection`

The tag collection to search for the tag.

`tag`

The tag to compare collection elements against.

## Return Value

Returns `YES` if any tag in the collection is equal to `tag`.

---

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