docs: update generated docs (#981)

diff --git a/docs/dyn/books_v1.promooffer.html b/docs/dyn/books_v1.promooffer.html
index 2aa0bcd..b6bf12e 100644
--- a/docs/dyn/books_v1.promooffer.html
+++ b/docs/dyn/books_v1.promooffer.html
@@ -75,80 +75,102 @@
 <h1><a href="books_v1.html">Books API</a> . <a href="books_v1.promooffer.html">promooffer</a></h1>
 <h2>Instance Methods</h2>
 <p class="toc_element">
-  <code><a href="#accept">accept(androidId=None, device=None, manufacturer=None, model=None, offerId=None, product=None, serial=None, volumeId=None)</a></code></p>
-<p class="firstline"></p>
+  <code><a href="#accept">accept(androidId=None, serial=None, manufacturer=None, model=None, offerId=None, product=None, device=None, volumeId=None, x__xgafv=None)</a></code></p>
+<p class="firstline">Accepts the promo offer.</p>
 <p class="toc_element">
-  <code><a href="#dismiss">dismiss(androidId=None, device=None, manufacturer=None, model=None, offerId=None, product=None, serial=None)</a></code></p>
-<p class="firstline"></p>
+  <code><a href="#dismiss">dismiss(androidId=None, manufacturer=None, offerId=None, device=None, serial=None, model=None, product=None, x__xgafv=None)</a></code></p>
+<p class="firstline">Marks the promo offer as dismissed.</p>
 <p class="toc_element">
-  <code><a href="#get">get(androidId=None, device=None, manufacturer=None, model=None, product=None, serial=None)</a></code></p>
+  <code><a href="#get">get(manufacturer=None, serial=None, product=None, device=None, model=None, androidId=None, x__xgafv=None)</a></code></p>
 <p class="firstline">Returns a list of promo offers available to the user</p>
 <h3>Method Details</h3>
 <div class="method">
-    <code class="details" id="accept">accept(androidId=None, device=None, manufacturer=None, model=None, offerId=None, product=None, serial=None, volumeId=None)</code>
-  <pre>
+    <code class="details" id="accept">accept(androidId=None, serial=None, manufacturer=None, model=None, offerId=None, product=None, device=None, volumeId=None, x__xgafv=None)</code>
+  <pre>Accepts the promo offer.
 
 Args:
   androidId: string, device android_id
-  device: string, device device
+  serial: string, device serial
   manufacturer: string, device manufacturer
   model: string, device model
   offerId: string, A parameter
   product: string, device product
-  serial: string, device serial
+  device: string, device device
   volumeId: string, Volume id to exercise the offer
-</pre>
+  x__xgafv: string, V1 error format.
+    Allowed values
+      1 - v1 error format
+      2 - v2 error format
+
+Returns:
+  An object of the form:
+
+    { # A generic empty message that you can re-use to avoid defining duplicated empty messages in your APIs. A typical example is to use it as the request or the response type of an API method. For instance: service Foo { rpc Bar(google.protobuf.Empty) returns (google.protobuf.Empty); } The JSON representation for `Empty` is empty JSON object `{}`.
+  }</pre>
 </div>
 
 <div class="method">
-    <code class="details" id="dismiss">dismiss(androidId=None, device=None, manufacturer=None, model=None, offerId=None, product=None, serial=None)</code>
-  <pre>
+    <code class="details" id="dismiss">dismiss(androidId=None, manufacturer=None, offerId=None, device=None, serial=None, model=None, product=None, x__xgafv=None)</code>
+  <pre>Marks the promo offer as dismissed.
 
 Args:
   androidId: string, device android_id
-  device: string, device device
   manufacturer: string, device manufacturer
-  model: string, device model
   offerId: string, Offer to dimiss
-  product: string, device product
+  device: string, device device
   serial: string, device serial
-</pre>
+  model: string, device model
+  product: string, device product
+  x__xgafv: string, V1 error format.
+    Allowed values
+      1 - v1 error format
+      2 - v2 error format
+
+Returns:
+  An object of the form:
+
+    { # A generic empty message that you can re-use to avoid defining duplicated empty messages in your APIs. A typical example is to use it as the request or the response type of an API method. For instance: service Foo { rpc Bar(google.protobuf.Empty) returns (google.protobuf.Empty); } The JSON representation for `Empty` is empty JSON object `{}`.
+  }</pre>
 </div>
 
 <div class="method">
-    <code class="details" id="get">get(androidId=None, device=None, manufacturer=None, model=None, product=None, serial=None)</code>
+    <code class="details" id="get">get(manufacturer=None, serial=None, product=None, device=None, model=None, androidId=None, x__xgafv=None)</code>
   <pre>Returns a list of promo offers available to the user
 
 Args:
-  androidId: string, device android_id
-  device: string, device device
   manufacturer: string, device manufacturer
-  model: string, device model
-  product: string, device product
   serial: string, device serial
+  product: string, device product
+  device: string, device device
+  model: string, device model
+  androidId: string, device android_id
+  x__xgafv: string, V1 error format.
+    Allowed values
+      1 - v1 error format
+      2 - v2 error format
 
 Returns:
   An object of the form:
 
     {
+    &quot;kind&quot;: &quot;A String&quot;, # Resource type.
     &quot;items&quot;: [ # A list of offers.
       {
         &quot;artUrl&quot;: &quot;A String&quot;,
         &quot;gservicesKey&quot;: &quot;A String&quot;,
-        &quot;id&quot;: &quot;A String&quot;,
         &quot;items&quot;: [
           {
             &quot;author&quot;: &quot;A String&quot;,
-            &quot;canonicalVolumeLink&quot;: &quot;A String&quot;,
-            &quot;coverUrl&quot;: &quot;A String&quot;,
-            &quot;description&quot;: &quot;A String&quot;,
-            &quot;title&quot;: &quot;A String&quot;,
             &quot;volumeId&quot;: &quot;A String&quot;,
+            &quot;description&quot;: &quot;A String&quot;,
+            &quot;coverUrl&quot;: &quot;A String&quot;,
+            &quot;title&quot;: &quot;A String&quot;,
+            &quot;canonicalVolumeLink&quot;: &quot;A String&quot;,
           },
         ],
+        &quot;id&quot;: &quot;A String&quot;,
       },
     ],
-    &quot;kind&quot;: &quot;promooffer#offers&quot;, # Resource type.
   }</pre>
 </div>