---
title: "append(_:)"
framework: avfoundation
role: symbol
role_heading: Instance Method
path: "avfoundation/avassetwriterinputcaptionadaptor/append(_:)-4ils8"
---

# append(_:)

Appends a caption group that the system writes to the output.

## Declaration

```swift
func append(_ captionGroup: AVCaptionGroup) -> Bool
```

## Parameters

- `captionGroup`: The caption group that the system writes to the output.

## Return Value

Return Value A Boolean value that indicates whether the operation succeeded.

## See Also

### Appending captions

- [append(_:)](avfoundation/avassetwriterinputcaptionadaptor/append(_:)-910lp.md)