diff --git a/src/Dfareporting/Resource/StudioCreativeAssets.php b/src/Dfareporting/Resource/StudioCreativeAssets.php
index 39f45c0b476..07002975676 100644
--- a/src/Dfareporting/Resource/StudioCreativeAssets.php
+++ b/src/Dfareporting/Resource/StudioCreativeAssets.php
@@ -31,7 +31,17 @@
 class StudioCreativeAssets extends \Google\Service\Resource
 {
   /**
-   * Inserts a new studio creative asset. (studioCreativeAssets.insert)
+   * Inserts a new studio creative asset. Requests to upload an asset file must be
+   * sent to the upload URI using multipart media upload (or resumable media
+   * upload). For [multipart uploads](https://developers.google.com/doubleclick-
+   * advertisers/upload#multipart) (`uploadType=multipart`), the request uses
+   * `multipart/related` and includes two parts: * **Metadata**: A JSON object
+   * representing DfareportingStudioCreativeAssetsInsertRequest with
+   * `studioAdvertiserId`, and optional `studioAccountId` and `studioCreativeId`.
+   * * **Media**: The binary data of the asset file, specifying the `Content-Type`
+   * of the asset and a `Content-Disposition` header with `name="media"` and
+   * `filename=""` (for example, `Content-Disposition: form-data; name="media";
+   * filename="asset.jpg"`). (studioCreativeAssets.insert)
    *
    * @param DfareportingStudioCreativeAssetsInsertRequest $postBody
    * @param array $optParams Optional parameters.