---
title: MTRClusterTestClusterAttributeEpochSID
framework: matter
role: symbol
role_heading: Type Property
path: matter/mtrattributeidtype/mtrclustertestclusterattributeepochsid
---

# MTRClusterTestClusterAttributeEpochSID

## Declaration

```swift
static var MTRClusterTestClusterAttributeEpochSID: MTRAttributeIDType { get }
```