Clean and regen docs (#401)

diff --git a/docs/dyn/runtimeconfig_v1beta1.projects.configs.variables.html b/docs/dyn/runtimeconfig_v1beta1.projects.configs.variables.html
index 17d3516..edc0a7b 100644
--- a/docs/dyn/runtimeconfig_v1beta1.projects.configs.variables.html
+++ b/docs/dyn/runtimeconfig_v1beta1.projects.configs.variables.html
@@ -72,7 +72,7 @@
 
 </style>
 
-<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.variables.html">variables</a></h1>
+<h1><a href="runtimeconfig_v1beta1.html">Google Cloud Runtime Configuration 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.variables.html">variables</a></h1>
 <h2>Instance Methods</h2>
 <p class="toc_element">
   <code><a href="#create">create(parent, body, requestId=None, x__xgafv=None)</a></code></p>
@@ -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="#testIamPermissions">testIamPermissions(resource, x__xgafv=None, permissions=None)</a></code></p>
+  <code><a href="#testIamPermissions">testIamPermissions(resource, body, x__xgafv=None)</a></code></p>
 <p class="firstline">Returns permissions that a caller has on the specified resource.</p>
 <p class="toc_element">
   <code><a href="#update">update(name, body, x__xgafv=None)</a></code></p>
@@ -376,7 +376,7 @@
 </div>
 
 <div class="method">
-    <code class="details" id="testIamPermissions">testIamPermissions(resource, x__xgafv=None, permissions=None)</code>
+    <code class="details" id="testIamPermissions">testIamPermissions(resource, body, x__xgafv=None)</code>
   <pre>Returns permissions that a caller has on the specified resource.
 If the resource does not exist, this will return an empty set of
 permissions, not a NOT_FOUND error.
@@ -388,14 +388,22 @@
 Args:
   resource: string, REQUIRED: The resource for which the policy detail is being requested.
 See the operation documentation for the appropriate value for this field. (required)
+  body: object, The request body. (required)
+    The object takes the form of:
+
+{ # Request message for `TestIamPermissions` method.
+    "permissions": [ # The set of permissions to check for the `resource`. Permissions with
+        # wildcards (such as '*' or 'storage.*') are not allowed. For more
+        # information see
+        # [IAM Overview](https://cloud.google.com/iam/docs/overview#permissions).
+      "A String",
+    ],
+  }
+
   x__xgafv: string, V1 error format.
     Allowed values
       1 - v1 error format
       2 - v2 error format
-  permissions: string, The set of permissions to check for the `resource`. Permissions with
-wildcards (such as '*' or 'storage.*') are not allowed. For more
-information see
-[IAM Overview](https://cloud.google.com/iam/docs/overview#permissions). (repeated)
 
 Returns:
   An object of the form: