---
title: "readAttributeBarrierOpenPeriod(with:)"
framework: matter
role: symbol
role_heading: Instance Method
path: "matter/mtrclusterbarriercontrol/readattributebarrieropenperiod(with:)"
---

# readAttributeBarrierOpenPeriod(with:)

## Declaration

```swift
func readAttributeBarrierOpenPeriod(with params: MTRReadParams?) -> [String : Any]?
```