Braintree\WebhookTesting::_subscriptionSampleXml PHP Method

    private static function _subscriptionSampleXml($id)
    {
        return "\n        <subscription>\n            <id>{$id}</id>\n            <transactions type=\"array\">\n            </transactions>\n            <add_ons type=\"array\">\n            </add_ons>\n            <discounts type=\"array\">\n            </discounts>\n        </subscription>\n        ";
    }