---
title: isDeclared
framework: uniformtypeidentifiers
role: symbol
role_heading: Instance Property
path: uniformtypeidentifiers/uttypereference/isdeclared
---

# isDeclared

A Boolean value that indicates whether the system declares the type.

## Declaration

```swift
var isDeclared: Bool { get }
```

## Discussion

Discussion The system either declares a type or dynamically generates a type, but not both.

## See Also

### Obtaining additional type information

- [isDynamic](uniformtypeidentifiers/uttypereference/isdynamic.md)
- [isPublic](uniformtypeidentifiers/uttypereference/ispublic.md)
- [referenceURL](uniformtypeidentifiers/uttype-swift.struct/referenceurl.md)
- [version](uniformtypeidentifiers/uttype-swift.struct/version.md)