chore: regens API reference docs (#889)

diff --git a/docs/dyn/testing_v1.applicationDetailService.html b/docs/dyn/testing_v1.applicationDetailService.html
index 7b3c46f..5901c0f 100644
--- a/docs/dyn/testing_v1.applicationDetailService.html
+++ b/docs/dyn/testing_v1.applicationDetailService.html
@@ -75,15 +75,15 @@
 <h1><a href="testing_v1.html">Cloud Testing API</a> . <a href="testing_v1.applicationDetailService.html">applicationDetailService</a></h1>
 <h2>Instance Methods</h2>
 <p class="toc_element">
-  <code><a href="#getApkDetails">getApkDetails(body, x__xgafv=None)</a></code></p>
+  <code><a href="#getApkDetails">getApkDetails(body=None, x__xgafv=None)</a></code></p>
 <p class="firstline">Gets the details of an Android application APK.</p>
 <h3>Method Details</h3>
 <div class="method">
-    <code class="details" id="getApkDetails">getApkDetails(body, x__xgafv=None)</code>
+    <code class="details" id="getApkDetails">getApkDetails(body=None, x__xgafv=None)</code>
   <pre>Gets the details of an Android application APK.
 
 Args:
-  body: object, The request body. (required)
+  body: object, The request body.
     The object takes the form of:
 
 { # A reference to a file, used for user inputs.
@@ -111,13 +111,13 @@
         "targetSdkVersion": 42, # Specifies the API Level on which the application is designed to run.
         "applicationLabel": "A String", # User-readable name for the application.
         "intentFilters": [
-          { # The <intent-filter> section of an <activity> tag.
+          { # The &lt;intent-filter&gt; section of an &lt;activity&gt; tag.
               # https://developer.android.com/guide/topics/manifest/intent-filter-element.html
-            "mimeType": "A String", # The android:mimeType value of the <data> tag.
-            "actionNames": [ # The android:name value of the <action> tag.
+            "mimeType": "A String", # The android:mimeType value of the &lt;data&gt; tag.
+            "actionNames": [ # The android:name value of the &lt;action&gt; tag.
               "A String",
             ],
-            "categoryNames": [ # The android:name value of the <category> tag.
+            "categoryNames": [ # The android:name value of the &lt;category&gt; tag.
               "A String",
             ],
           },