---
title: "readAttributeSupplyState(with:)"
framework: matter
role: symbol
role_heading: Instance Method
path: "matter/mtrclusterenergyevse/readattributesupplystate(with:)"
---

# readAttributeSupplyState(with:)

## Declaration

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