Update docs (#291)

diff --git a/docs/dyn/runtimeconfig_v1beta1.projects.configs.waiters.html b/docs/dyn/runtimeconfig_v1beta1.projects.configs.waiters.html
index b9c212f..57c2c09 100644
--- a/docs/dyn/runtimeconfig_v1beta1.projects.configs.waiters.html
+++ b/docs/dyn/runtimeconfig_v1beta1.projects.configs.waiters.html
@@ -75,7 +75,7 @@
 <h1><a href="runtimeconfig_v1beta1.html">Google Cloud RuntimeConfig API</a> . <a href="runtimeconfig_v1beta1.projects.html">projects</a> . <a href="runtimeconfig_v1beta1.projects.configs.html">configs</a> . <a href="runtimeconfig_v1beta1.projects.configs.waiters.html">waiters</a></h1>
 <h2>Instance Methods</h2>
 <p class="toc_element">
-  <code><a href="#create">create(parent=None, body, x__xgafv=None)</a></code></p>
+  <code><a href="#create">create(parent=None, body, requestId=None, x__xgafv=None)</a></code></p>
 <p class="firstline">Creates a Waiter resource. This operation returns a long-running Operation</p>
 <p class="toc_element">
   <code><a href="#delete">delete(name=None, x__xgafv=None)</a></code></p>
@@ -91,7 +91,7 @@
 <p class="firstline">Retrieves the next page of results.</p>
 <h3>Method Details</h3>
 <div class="method">
-    <code class="details" id="create">create(parent=None, body, x__xgafv=None)</code>
+    <code class="details" id="create">create(parent=None, body, requestId=None, x__xgafv=None)</code>
   <pre>Creates a Waiter resource. This operation returns a long-running Operation
 resource which can be polled for completion. However, a waiter with the
 given name will exist (and can be retrieved) prior to the operation
@@ -256,6 +256,13 @@
         # waiter.
   }
 
+  requestId: string, An optional unique request_id. If server receives two Create requests with
+the same request_id then second request will be ignored and information
+stored in the backend will be returned. Empty request_id fields are
+ignored.
+It is responsibility of the client to ensure uniqueness of the request_id
+strings.
+The strings are limited to 64 characters.
   x__xgafv: string, V1 error format.
     Allowed values
       1 - v1 error format