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# validateUserInterfaceItem(_:)

Returns a Boolean value that indicates whether to enable the specified item.

```
@MainActor func validateUserInterfaceItem(_ item: any NSValidatedUserInterfaceItem) -> Bool
```

## Parameters

`item`

The user interface item to validate.

## Return Value

<doc://com.apple.documentation/documentation/Swift/true> if the specified item responds to [`toggleSidebar(_:)`](/documentation/AppKit/NSSplitViewController/toggleSidebar(_:)), <doc://com.apple.documentation/documentation/Swift/false> if it doesn’t.

---

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