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# detectedPatterns(for:inItemSet:)

Requests that the data detection system asynchronously identify the patterns that you specify for the pasteboard items, and return the patterns that it matches.

```
func detectedPatterns(for keyPaths: Set<PartialKeyPath<UIPasteboard.DetectedValues>>, inItemSet itemSet: IndexSet?) async throws -> [Set<PartialKeyPath<UIPasteboard.DetectedValues>>]
```

## Parameters

`keyPaths`

A set of key paths you use to indicate which types of pattern you want the data detection system to match.

`itemSet`

A set of indexes you provide to indicate which pasteboard items the data detection system inspects to detect patterns.

## Return Value

A set of key paths that represent the patterns the data detection system matches in the pasteboard.

## Discussion

Because this method only gives an indication of whether a pasteboard item matches a particular pattern and doesn’t allow the app to access the contents, the system doesn’t notify the user about reading the contents of the pasteboard.

---

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