---
title: keyPath
framework: combine
role: symbol
role_heading: Instance Property
path: combine/subscribers/assign/keypath
---

# keyPath

The key path that indicates the property to assign.

## Declaration

```swift
final let keyPath: ReferenceWritableKeyPath<Root, Input>
```

## See Also

### Inspecting the assigned property

- [object](combine/subscribers/assign/object.md)