---
title: PredicateExpressions.VariableID
framework: foundation
role: symbol
role_heading: Structure
path: foundation/predicateexpressions/variableid
---

# PredicateExpressions.VariableID

## Declaration

```swift
struct VariableID
```

## Relationships

### Conforms To

- [Decodable](swift/decodable.md)
- [Encodable](swift/encodable.md)
- [Equatable](swift/equatable.md)
- [Hashable](swift/hashable.md)
- [Sendable](swift/sendable.md)
- [SendableMetatype](swift/sendablemetatype.md)