---
title: "attestationRequest(with:completion:)"
framework: matter
role: symbol
role_heading: Instance Method
path: "matter/mtrbaseclusteroperationalcredentials/attestationrequest(with:completion:)"
---

# attestationRequest(with:completion:)

## Declaration

```swift
func attestationRequest(with params: MTROperationalCredentialsClusterAttestationRequestParams, completion: @escaping @Sendable (MTROperationalCredentialsClusterAttestationResponseParams?, (any Error)?) -> Void)
```

```swift
func attestationRequest(with params: MTROperationalCredentialsClusterAttestationRequestParams) async throws -> MTROperationalCredentialsClusterAttestationResponseParams
```