docs: docs update (#911)

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Fixes #<issue_number_goes_here> 🦕
diff --git a/docs/dyn/displayvideo_v1.advertisers.assets.html b/docs/dyn/displayvideo_v1.advertisers.assets.html
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+<html><body>
+<style>
+
+body, h1, h2, h3, div, span, p, pre, a {
+  margin: 0;
+  padding: 0;
+  border: 0;
+  font-weight: inherit;
+  font-style: inherit;
+  font-size: 100%;
+  font-family: inherit;
+  vertical-align: baseline;
+}
+
+body {
+  font-size: 13px;
+  padding: 1em;
+}
+
+h1 {
+  font-size: 26px;
+  margin-bottom: 1em;
+}
+
+h2 {
+  font-size: 24px;
+  margin-bottom: 1em;
+}
+
+h3 {
+  font-size: 20px;
+  margin-bottom: 1em;
+  margin-top: 1em;
+}
+
+pre, code {
+  line-height: 1.5;
+  font-family: Monaco, 'DejaVu Sans Mono', 'Bitstream Vera Sans Mono', 'Lucida Console', monospace;
+}
+
+pre {
+  margin-top: 0.5em;
+}
+
+h1, h2, h3, p {
+  font-family: Arial, sans serif;
+}
+
+h1, h2, h3 {
+  border-bottom: solid #CCC 1px;
+}
+
+.toc_element {
+  margin-top: 0.5em;
+}
+
+.firstline {
+  margin-left: 2 em;
+}
+
+.method  {
+  margin-top: 1em;
+  border: solid 1px #CCC;
+  padding: 1em;
+  background: #EEE;
+}
+
+.details {
+  font-weight: bold;
+  font-size: 14px;
+}
+
+</style>
+
+<h1><a href="displayvideo_v1.html">Display & Video 360 API</a> . <a href="displayvideo_v1.advertisers.html">advertisers</a> . <a href="displayvideo_v1.advertisers.assets.html">assets</a></h1>
+<h2>Instance Methods</h2>
+<p class="toc_element">
+  <code><a href="#upload">upload(advertiserId, body=None, x__xgafv=None, media_body=None, media_mime_type=None)</a></code></p>
+<p class="firstline">Uploads an asset.</p>
+<h3>Method Details</h3>
+<div class="method">
+    <code class="details" id="upload">upload(advertiserId, body=None, x__xgafv=None, media_body=None, media_mime_type=None)</code>
+  <pre>Uploads an asset.
+Returns the ID of the newly uploaded asset if successful.
+The asset file size should be no more than 10 MB for images, 200 MB for
+ZIP files, and 1 GB for videos.
+
+Args:
+  advertiserId: string, Required. The ID of the advertiser this asset belongs to. (required)
+  body: object, The request body.
+    The object takes the form of:
+
+{ # A request message for CreateAsset.
+    &quot;filename&quot;: &quot;A String&quot;, # Required. The filename of the asset, including the file extension.
+        # 
+        # The filename must be UTF-8 encoded with a maximum size of 240 bytes.
+  }
+
+  x__xgafv: string, V1 error format.
+    Allowed values
+      1 - v1 error format
+      2 - v2 error format
+  media_body: string, The filename of the media request body, or an instance of a MediaUpload object.
+  media_mime_type: string, The MIME type of the media request body, or an instance of a MediaUpload object.
+
+Returns:
+  An object of the form:
+
+    { # A response message for CreateAsset.
+    &quot;asset&quot;: { # A single asset. # The uploaded asset, if successful.
+      &quot;mediaId&quot;: &quot;A String&quot;, # Media ID of the uploaded asset. This is a unique identifier for the asset.
+          # This ID can be passed to other API calls, e.g.
+          # CreateCreative to associate
+          # the asset with a creative.
+      &quot;content&quot;: &quot;A String&quot;, # The asset content.
+          # For uploaded assets, the content is the serving path.
+    },
+  }</pre>
+</div>
+
+</body></html>
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