---
title: Calendar.RecurrenceRule.Specification
framework: foundation
role: symbol
role_heading: Type Alias
path: foundation/calendar/recurrencerule/specification
---

# Calendar.RecurrenceRule.Specification

## Declaration

```swift
typealias Specification = some ResolverSpecification
```

## See Also

### Type Aliases

- [Calendar.RecurrenceRule.UnwrappedType](foundation/calendar/recurrencerule/unwrappedtype.md)
- [Calendar.RecurrenceRule.ValueType](foundation/calendar/recurrencerule/valuetype.md)