code: public CertificateOperation updateCertificateOperation(String vaultBaseUrl, String certificateName, boolean cancellationRequested) {
          return updateCertificateOperationWithServiceResponseAsync(vaultBaseUrl, certificateName, cancellationRequested).toBlocking().single().body();
      }
docs: Updates a certificate operation.
  Updates a certificate creation operation that is already in progress. This operation requires the certificates/update permission.
  
  @param vaultBaseUrl The vault name, for example https://myvault.vault.azure.net.
  @param certificateName The name of the certificate.
  @param cancellationRequested Indicates if cancellation was requested on the certificate operation.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @throws KeyVaultErrorException thrown if the request is rejected by server
  @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent
  @return the CertificateOperation object if successful.