diff --git a/packages/google-cloud-asset/src/v1beta1/asset_service_client.js b/packages/google-cloud-asset/src/v1beta1/asset_service_client.js
index c8f25d5850d..0a6bb392452 100644
--- a/packages/google-cloud-asset/src/v1beta1/asset_service_client.js
+++ b/packages/google-cloud-asset/src/v1beta1/asset_service_client.js
@@ -277,20 +277,14 @@ class AssetServiceClient {
    * // Handle the operation using the promise pattern.
    * client.exportAssets(request)
    *   .then(responses => {
-   *     const operation = responses[0];
-   *     const initialApiResponse = responses[1];
+   *     const [operation, initialApiResponse] = responses;
    *
    *     // Operation#promise starts polling for the completion of the LRO.
    *     return operation.promise();
    *   })
    *   .then(responses => {
-   *     // The final result of the operation.
    *     const result = responses[0];
-   *
-   *     // The metadata value of the completed operation.
    *     const metadata = responses[1];
-   *
-   *     // The response of the api call returning the complete operation.
    *     const finalApiResponse = responses[2];
    *   })
    *   .catch(err => {
@@ -307,8 +301,7 @@ class AssetServiceClient {
    * // Handle the operation using the event emitter pattern.
    * client.exportAssets(request)
    *   .then(responses => {
-   *     const operation = responses[0];
-   *     const initialApiResponse = responses[1];
+   *     const [operation, initialApiResponse] = responses;
    *
    *     // Adding a listener for the "complete" event starts polling for the
    *     // completion of the operation.
diff --git a/packages/google-cloud-asset/synth.metadata b/packages/google-cloud-asset/synth.metadata
index 21ce7c0f3d3..18a010d8119 100644
--- a/packages/google-cloud-asset/synth.metadata
+++ b/packages/google-cloud-asset/synth.metadata
@@ -1,19 +1,19 @@
 {
-  "updateTime": "2019-01-22T12:19:14.185087Z",
+  "updateTime": "2019-02-02T12:07:39.907100Z",
   "sources": [
     {
       "generator": {
         "name": "artman",
-        "version": "0.16.7",
-        "dockerImage": "googleapis/artman@sha256:d6c8ced606eb49973ca95d2af7c55a681acc042db0f87d135968349e7bf6dd80"
+        "version": "0.16.8",
+        "dockerImage": "googleapis/artman@sha256:75bc07ef34a1de9895c18af54dc503ed3b3f3b52e85062e3360a979d2a0741e7"
       }
     },
     {
       "git": {
         "name": "googleapis",
         "remote": "https://github.com/googleapis/googleapis.git",
-        "sha": "96adaf6de4fa2cabbdd5de560a367bb488e0639b",
-        "internalRef": "229998977"
+        "sha": "bce093dab3e65c40eb9a37efbdc960f34df6037a",
+        "internalRef": "231974277"
       }
     },
     {