code: public CertificatePolicy updateCertificatePolicy(String vaultBaseUrl, String certificateName, CertificatePolicy certificatePolicy) {
          return updateCertificatePolicyWithServiceResponseAsync(vaultBaseUrl, certificateName, certificatePolicy).toBlocking().single().body();
      }
docs: Updates the policy for a certificate.
  Set specified members in the certificate policy. Leave others as null. 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 in the given vault.
  @param certificatePolicy The policy for the certificate.
  @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 CertificatePolicy object if successful.