code: public ServiceFuture<IssuerBundle> setCertificateIssuerAsync(String vaultBaseUrl, String issuerName, String provider, final ServiceCallback<IssuerBundle> serviceCallback) {
          return ServiceFuture.fromResponse(setCertificateIssuerWithServiceResponseAsync(vaultBaseUrl, issuerName, provider), serviceCallback);
      }
docs: Sets the specified certificate issuer.
  The SetCertificateIssuer operation adds or updates the specified certificate issuer. This operation requires the certificates/setissuers permission.
  
  @param vaultBaseUrl The vault name, for example https://myvault.vault.azure.net.
  @param issuerName The name of the issuer.
  @param provider The issuer provider.
  @param serviceCallback the async ServiceCallback to handle successful and failed responses.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the {@link ServiceFuture} object