chore: regens API reference docs (#889)

diff --git a/docs/dyn/indexing_v3.urlNotifications.html b/docs/dyn/indexing_v3.urlNotifications.html
index 639ef8f..1c165cc 100644
--- a/docs/dyn/indexing_v3.urlNotifications.html
+++ b/docs/dyn/indexing_v3.urlNotifications.html
@@ -78,7 +78,7 @@
   <code><a href="#getMetadata">getMetadata(url=None, x__xgafv=None)</a></code></p>
 <p class="firstline">Gets metadata about a Web Document. This method can _only_ be used to query</p>
 <p class="toc_element">
-  <code><a href="#publish">publish(body, x__xgafv=None)</a></code></p>
+  <code><a href="#publish">publish(body=None, x__xgafv=None)</a></code></p>
 <p class="firstline">Notifies that a URL has been updated or deleted.</p>
 <h3>Method Details</h3>
 <div class="method">
@@ -122,11 +122,11 @@
 </div>
 
 <div class="method">
-    <code class="details" id="publish">publish(body, x__xgafv=None)</code>
+    <code class="details" id="publish">publish(body=None, x__xgafv=None)</code>
   <pre>Notifies that a URL has been updated or deleted.
 
 Args:
-  body: object, The request body. (required)
+  body: object, The request body.
     The object takes the form of:
 
 { # `UrlNotification` is the resource used in all Indexing API calls.