---
title: constraints
framework: cryptotokenkit
role: symbol
role_heading: Instance Property
path: cryptotokenkit/tktokenkeychainitem/constraints
---

# constraints

Access constraints for the keychain item, keyed by TKTokenOperation values wrapped in NSNumber objects.

## Declaration

```swift
var constraints: [NSNumber : Any]? { get set }
```

## See Also

### Accessing Keychain Item Attributes

- [objectID](cryptotokenkit/tktokenkeychainitem/objectid.md)
- [label](cryptotokenkit/tktokenkeychainitem/label.md)