code: public Observable<CertificateBundle> updateCertificateAsync(String vaultBaseUrl, String certificateName, String certificateVersion) {
          return updateCertificateWithServiceResponseAsync(vaultBaseUrl, certificateName, certificateVersion).map(new Func1<ServiceResponse<CertificateBundle>, CertificateBundle>() {
              @Override
              public CertificateBundle call(ServiceResponse<CertificateBundle> response) {
                  return response.body();
              }
          });
      }
docs: Updates the specified attributes associated with the given certificate.
  The UpdateCertificate operation applies the specified update on the given certificate; the only elements updated are the certificate's attributes. 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 key vault.
  @param certificateVersion The version of the certificate.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the observable to the CertificateBundle object