Regen docs (#373)

diff --git a/docs/dyn/compute_alpha.regionAutoscalers.html b/docs/dyn/compute_alpha.regionAutoscalers.html
index 75bd53e..e35607f 100644
--- a/docs/dyn/compute_alpha.regionAutoscalers.html
+++ b/docs/dyn/compute_alpha.regionAutoscalers.html
@@ -90,7 +90,7 @@
   <code><a href="#list_next">list_next(previous_request, previous_response)</a></code></p>
 <p class="firstline">Retrieves the next page of results.</p>
 <p class="toc_element">
-  <code><a href="#patch">patch(project, region, autoscaler, body, requestId=None)</a></code></p>
+  <code><a href="#patch">patch(project, region, body, requestId=None, autoscaler=None)</a></code></p>
 <p class="firstline">Updates an autoscaler in the specified project using the data included in the request. This method supports patch semantics.</p>
 <p class="toc_element">
   <code><a href="#testIamPermissions">testIamPermissions(project, region, resource, body)</a></code></p>
@@ -459,13 +459,12 @@
 </div>
 
 <div class="method">
-    <code class="details" id="patch">patch(project, region, autoscaler, body, requestId=None)</code>
+    <code class="details" id="patch">patch(project, region, body, requestId=None, autoscaler=None)</code>
   <pre>Updates an autoscaler in the specified project using the data included in the request. This method supports patch semantics.
 
 Args:
   project: string, Project ID for this request. (required)
   region: string, Name of the region scoping this request. (required)
-  autoscaler: string, Name of the autoscaler to update. (required)
   body: object, The request body. (required)
     The object takes the form of:
 
@@ -528,6 +527,7 @@
   }
 
   requestId: string, begin_interface: MixerMutationRequestBuilder Request ID to support idempotency.
+  autoscaler: string, Name of the autoscaler to patch.
 
 Returns:
   An object of the form: