---
title: Publishers.Collect.Output
framework: combine
role: symbol
role_heading: Type Alias
path: combine/publishers/collect/output
---

# Publishers.Collect.Output

The kind of values published by this publisher.

## Declaration

```swift
typealias Output = [Upstream.Output]
```

## Discussion

Discussion This publisher publishes arrays of its upstream publisher’s output type.

## See Also

### Declaring supporting types

- [Publishers.Collect.Failure](combine/publishers/collect/failure.md)