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# Operation Management
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Monitor and manage long-running certificate operations including creation status, cancellation, and manual certificate merging for external issuers.
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## Capabilities
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### Certificate Operation Monitoring
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```python { .api }
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def get_certificate_operation(
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    certificate_name: str, **kwargs: Any
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) -> CertificateOperation:
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    """Get the status of a certificate operation."""
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def cancel_certificate_operation(
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    certificate_name: str, **kwargs: Any
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) -> CertificateOperation:
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    """Cancel a pending certificate operation."""
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def delete_certificate_operation(
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    certificate_name: str, **kwargs: Any
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) -> CertificateOperation:
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    """Delete a certificate operation."""
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```
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### Certificate Merging
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```python { .api }
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def merge_certificate(
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    certificate_name: str,
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    x509_certificates: List[bytes],
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    *,
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    enabled: Optional[bool] = None,
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    tags: Optional[Dict[str, str]] = None,
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    **kwargs: Any
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) -> KeyVaultCertificate:
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    """Merge x509 certificates with a pending certificate operation."""
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```
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## Usage Examples
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```python
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# Monitor certificate creation
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operation = client.get_certificate_operation("my-cert")
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print(f"Status: {operation.status}")
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print(f"Request ID: {operation.request_id}")
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if operation.error:
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    print(f"Error: {operation.error.message}")
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# Cancel pending operation
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cancelled_op = client.cancel_certificate_operation("my-cert")
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print(f"Cancelled: {cancelled_op.cancellation_requested}")
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# Merge external certificate
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with open("external_cert.crt", "rb") as f:
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    cert_data = f.read()
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merged_cert = client.merge_certificate(
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    certificate_name="external-cert",
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    x509_certificates=[cert_data],
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    enabled=True
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)
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```