---
title: changeToken
framework: photos
role: symbol
role_heading: Instance Property
path: photos/phpersistentchange/changetoken
---

# changeToken

An opaque object that represents the state of Photos library.

## Declaration

```swift
var changeToken: PHPersistentChangeToken { get }
```

## See Also

### Getting the Change Token

- [PHPersistentChangeToken](photos/phpersistentchangetoken.md)