docs: docs update (#911)

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Fixes #<issue_number_goes_here> 🦕
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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="androidpublisher_v3.html">Google Play Developer API</a> . <a href="androidpublisher_v3.systemapks.html">systemapks</a> . <a href="androidpublisher_v3.systemapks.variants.html">variants</a></h1>
+<h2>Instance Methods</h2>
+<p class="toc_element">
+  <code><a href="#create">create(packageName, versionCode, body=None)</a></code></p>
+<p class="firstline">Creates a new variant of APK which is suitable for inclusion in a system image.</p>
+<p class="toc_element">
+  <code><a href="#download">download(packageName, versionCode, variantId)</a></code></p>
+<p class="firstline">Download a previously created APK which is suitable for inclusion in a system image.</p>
+<p class="toc_element">
+  <code><a href="#download_media">download_media(packageName, versionCode, variantId)</a></code></p>
+<p class="firstline">Download a previously created APK which is suitable for inclusion in a system image.</p>
+<p class="toc_element">
+  <code><a href="#get">get(packageName, versionCode, variantId)</a></code></p>
+<p class="firstline">Returns a previously created system APK variant.</p>
+<p class="toc_element">
+  <code><a href="#list">list(packageName, versionCode)</a></code></p>
+<p class="firstline">Returns the list of previously created system APK variants.</p>
+<h3>Method Details</h3>
+<div class="method">
+    <code class="details" id="create">create(packageName, versionCode, body=None)</code>
+  <pre>Creates a new variant of APK which is suitable for inclusion in a system image.
+
+Args:
+  packageName: string, Unique identifier for the Android app; for example, &quot;com.spiffygame&quot;. (required)
+  versionCode: string, The version code of the App Bundle. (required)
+  body: object, The request body.
+    The object takes the form of:
+
+{
+    &quot;deviceSpec&quot;: {
+      &quot;screenDensity&quot;: 42,
+      &quot;supportedAbis&quot;: [
+        &quot;A String&quot;,
+      ],
+      &quot;supportedLocales&quot;: [
+        &quot;A String&quot;,
+      ],
+    },
+  }
+
+
+Returns:
+  An object of the form:
+
+    { # Represents the variant of a generated system APK from an uploaded App Bundle.
+    &quot;deviceSpec&quot;: {
+      &quot;screenDensity&quot;: 42,
+      &quot;supportedAbis&quot;: [
+        &quot;A String&quot;,
+      ],
+      &quot;supportedLocales&quot;: [
+        &quot;A String&quot;,
+      ],
+    },
+    &quot;variantId&quot;: 42,
+  }</pre>
+</div>
+
+<div class="method">
+    <code class="details" id="download">download(packageName, versionCode, variantId)</code>
+  <pre>Download a previously created APK which is suitable for inclusion in a system image.
+
+Args:
+  packageName: string, Unique identifier for the Android app; for example, &quot;com.spiffygame&quot;. (required)
+  versionCode: string, The version code of the App Bundle. (required)
+  variantId: integer, A parameter (required)
+</pre>
+</div>
+
+<div class="method">
+    <code class="details" id="download_media">download_media(packageName, versionCode, variantId)</code>
+  <pre>Download a previously created APK which is suitable for inclusion in a system image.
+
+Args:
+  packageName: string, Unique identifier for the Android app; for example, &quot;com.spiffygame&quot;. (required)
+  versionCode: string, The version code of the App Bundle. (required)
+  variantId: integer, A parameter (required)
+</pre>
+</div>
+
+<div class="method">
+    <code class="details" id="get">get(packageName, versionCode, variantId)</code>
+  <pre>Returns a previously created system APK variant.
+
+Args:
+  packageName: string, Unique identifier for the Android app; for example, &quot;com.spiffygame&quot;. (required)
+  versionCode: string, The version code of the App Bundle. (required)
+  variantId: integer, Unique identifier for this variant. (required)
+
+Returns:
+  An object of the form:
+
+    { # Represents the variant of a generated system APK from an uploaded App Bundle.
+    &quot;deviceSpec&quot;: {
+      &quot;screenDensity&quot;: 42,
+      &quot;supportedAbis&quot;: [
+        &quot;A String&quot;,
+      ],
+      &quot;supportedLocales&quot;: [
+        &quot;A String&quot;,
+      ],
+    },
+    &quot;variantId&quot;: 42,
+  }</pre>
+</div>
+
+<div class="method">
+    <code class="details" id="list">list(packageName, versionCode)</code>
+  <pre>Returns the list of previously created system APK variants.
+
+Args:
+  packageName: string, Unique identifier for the Android app; for example, &quot;com.spiffygame&quot;. (required)
+  versionCode: string, The version code of the App Bundle. (required)
+
+Returns:
+  An object of the form:
+
+    {
+    &quot;variants&quot;: [
+      { # Represents the variant of a generated system APK from an uploaded App Bundle.
+        &quot;deviceSpec&quot;: {
+          &quot;screenDensity&quot;: 42,
+          &quot;supportedAbis&quot;: [
+            &quot;A String&quot;,
+          ],
+          &quot;supportedLocales&quot;: [
+            &quot;A String&quot;,
+          ],
+        },
+        &quot;variantId&quot;: 42,
+      },
+    ],
+  }</pre>
+</div>
+
+</body></html>
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