---
title: "readAttributeNumberOfRFIDUsersSupported(with:)"
framework: matter
role: symbol
role_heading: Instance Method
path: "matter/mtrclusterdoorlock/readattributenumberofrfiduserssupported(with:)"
---

# readAttributeNumberOfRFIDUsersSupported(with:)

## Declaration

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