---
title: "open(completion:)"
framework: matter
role: symbol
role_heading: Instance Method
path: "matter/mtrbaseclustervalveconfigurationandcontrol/open(completion:)"
---

# open(completion:)

## Declaration

```swift
func open(completion: @escaping @Sendable ((any Error)?) -> Void)
```

```swift
func open() async throws
```