docs: public ServiceFuture<IntegrationAccountAgreementInner> createOrUpdateAsync(String resourceGroupName, String integrationAccountName, String agreementName, IntegrationAccountAgreementInner agreement, final ServiceCallback<IntegrationAccountAgreementInner> serviceCallback) {
          return ServiceFuture.fromResponse(createOrUpdateWithServiceResponseAsync(resourceGroupName, integrationAccountName, agreementName, agreement), serviceCallback);
      }