chore: regens API reference docs (#889)

diff --git a/docs/dyn/androiddeviceprovisioning_v1.customers.configurations.html b/docs/dyn/androiddeviceprovisioning_v1.customers.configurations.html
index 256b5b5..f34a999 100644
--- a/docs/dyn/androiddeviceprovisioning_v1.customers.configurations.html
+++ b/docs/dyn/androiddeviceprovisioning_v1.customers.configurations.html
@@ -75,7 +75,7 @@
 <h1><a href="androiddeviceprovisioning_v1.html">Android Device Provisioning Partner API</a> . <a href="androiddeviceprovisioning_v1.customers.html">customers</a> . <a href="androiddeviceprovisioning_v1.customers.configurations.html">configurations</a></h1>
 <h2>Instance Methods</h2>
 <p class="toc_element">
-  <code><a href="#create">create(parent, body, x__xgafv=None)</a></code></p>
+  <code><a href="#create">create(parent, body=None, x__xgafv=None)</a></code></p>
 <p class="firstline">Creates a new configuration. Once created, a customer can apply the</p>
 <p class="toc_element">
   <code><a href="#delete">delete(name, x__xgafv=None)</a></code></p>
@@ -87,18 +87,18 @@
   <code><a href="#list">list(parent, x__xgafv=None)</a></code></p>
 <p class="firstline">Lists a customer's configurations.</p>
 <p class="toc_element">
-  <code><a href="#patch">patch(name, body, updateMask=None, x__xgafv=None)</a></code></p>
+  <code><a href="#patch">patch(name, body=None, updateMask=None, x__xgafv=None)</a></code></p>
 <p class="firstline">Updates a configuration's field values.</p>
 <h3>Method Details</h3>
 <div class="method">
-    <code class="details" id="create">create(parent, body, x__xgafv=None)</code>
+    <code class="details" id="create">create(parent, body=None, x__xgafv=None)</code>
   <pre>Creates a new configuration. Once created, a customer can apply the
 configuration to devices.
 
 Args:
   parent: string, Required. The customer that manages the configuration. An API resource name
 in the format `customers/[CUSTOMER_ID]`. (required)
-  body: object, The request body. (required)
+  body: object, The request body.
     The object takes the form of:
 
 { # A configuration collects the provisioning options for Android devices. Each
@@ -340,14 +340,14 @@
 </div>
 
 <div class="method">
-    <code class="details" id="patch">patch(name, body, updateMask=None, x__xgafv=None)</code>
+    <code class="details" id="patch">patch(name, body=None, updateMask=None, x__xgafv=None)</code>
   <pre>Updates a configuration's field values.
 
 Args:
   name: string, Output only. The API resource name in the format
 `customers/[CUSTOMER_ID]/configurations/[CONFIGURATION_ID]`. Assigned by
 the server. (required)
-  body: object, The request body. (required)
+  body: object, The request body.
     The object takes the form of:
 
 { # A configuration collects the provisioning options for Android devices. Each