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# Namespace.ID

A namespace defined by the persistent identity of an
`@Namespace` dynamic property.

```
@frozen struct ID
```

## Relationships

### Conforms To

[`Sendable`](/documentation/Swift/Sendable)

[`Copyable`](/documentation/Swift/Copyable)

[`SendableMetatype`](/documentation/Swift/SendableMetatype)

[`BitwiseCopyable`](/documentation/Swift/BitwiseCopyable)

[`Hashable`](/documentation/Swift/Hashable)

[`Equatable`](/documentation/Swift/Equatable)

---

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