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  "identifier" : "/documentation/Matter/MTROperationalCertificateIssuer/issueOperationalCertificate(forRequest:attestationInfo:controller:completion:)",
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# issueOperationalCertificate(forRequest:attestationInfo:controller:completion:)

```
func issueOperationalCertificate(forRequest csrInfo: MTROperationalCSRInfo, attestationInfo: MTRDeviceAttestationInfo, controller: MTRDeviceController, completion: @escaping @Sendable (MTROperationalCertificateChain?, (any Error)?) -> Void)
```

```
func issueOperationalCertificate(forRequest csrInfo: MTROperationalCSRInfo, attestationInfo: MTRDeviceAttestationInfo, controller: MTRDeviceController) async throws -> MTROperationalCertificateChain
```

---

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