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# commissioning(_:completedDeviceAttestation:error:completion:)

Notification that device attestation has completed.

```
func commissioning(_ commissioning: MTRCommissioningOperation, completedDeviceAttestation attestationDeviceInfo: MTRDeviceAttestationDeviceInfo, error: (any Error)?, completion: @escaping @Sendable () -> Void)
```

```
func commissioning(_ commissioning: MTRCommissioningOperation, completedDeviceAttestation attestationDeviceInfo: MTRDeviceAttestationDeviceInfo, error: (any Error)?) async
```

## Discussion

Commissioning will pause, regardless of whether attestation succeeded or
failed, until the completion is invoked (indicating that commissioning should
proceed, even if attestation failed), or commissioning is stopped.

---

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