---
title: "notify_is_valid_token(_:)"
framework: Darwin Notify
role: symbol
role_heading: Function
platforms: [iOS 8.0+, iPadOS 8.0+, Mac Catalyst 13.1+, macOS 10.10+, visionOS 1.0+, watchOS 2.0+]
path: "darwinnotify/notify_is_valid_token(_:)"
---

# notify_is_valid_token(_:)

## Declaration

```swift
func notify_is_valid_token(_ val: Int32) -> Bool
```

## See Also

### Functions

- [notify_register_file_descriptor(_:_:_:_:)](darwinnotify/notify_register_file_descriptor(_:_:_:_:).md)