---
title: FormatOutput
framework: foundation
role: symbol
role_heading: Associated Type
path: foundation/formatstyle/formatoutput
---

# FormatOutput

The type this format style produces as output.

## Declaration

```swift
associatedtype FormatOutput
```

## Discussion

Discussion Conforming types in Foundation define this type as either String or AttributedString.

## See Also

### Declaring input and output types

- [FormatInput](foundation/formatstyle/formatinput.md)