---
title: "write(_:)"
framework: compression
role: symbol
role_heading: Instance Method
path: "compression/outputfilter/write(_:)"
---

# write(_:)

Writes data to the output filter.

## Declaration

```swift
func write<D>(_ data: D?) throws where D : DataProtocol
```

## See Also

### Instance Methods

- [finalize()](compression/outputfilter/finalize().md)