---
title: "readAttributeNumberOfMeasurementTypes(completion:)"
framework: matter
role: symbol
role_heading: Instance Method
path: "matter/mtrbaseclusterelectricalpowermeasurement/readattributenumberofmeasurementtypes(completion:)"
---

# readAttributeNumberOfMeasurementTypes(completion:)

## Declaration

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

```swift
func readAttributeNumberOfMeasurementTypes() async throws -> NSNumber
```