---
title: "appendInterpolation(_:privacy:attributes:)"
framework: os
role: symbol
role_heading: Instance Method
path: "os/osloginterpolation/appendinterpolation(_:privacy:attributes:)-6vtcc"
---

# appendInterpolation(_:privacy:attributes:)

## Declaration

```swift
mutating func appendInterpolation(_ error: @autoclosure @escaping () -> (any Error)?, privacy: OSLogPrivacy = .auto, attributes: String = "")
```