docs: update generated docs (#981)

diff --git a/docs/dyn/iam_v1.permissions.html b/docs/dyn/iam_v1.permissions.html
index 93f76c5..25c95e8 100644
--- a/docs/dyn/iam_v1.permissions.html
+++ b/docs/dyn/iam_v1.permissions.html
@@ -76,30 +76,33 @@
 <h2>Instance Methods</h2>
 <p class="toc_element">
   <code><a href="#queryTestablePermissions">queryTestablePermissions(body=None, x__xgafv=None)</a></code></p>
-<p class="firstline">Lists the permissions testable on a resource.</p>
+<p class="firstline">Lists every permission that you can test on a resource. A permission is</p>
 <p class="toc_element">
   <code><a href="#queryTestablePermissions_next">queryTestablePermissions_next(previous_request, previous_response)</a></code></p>
 <p class="firstline">Retrieves the next page of results.</p>
 <h3>Method Details</h3>
 <div class="method">
     <code class="details" id="queryTestablePermissions">queryTestablePermissions(body=None, x__xgafv=None)</code>
-  <pre>Lists the permissions testable on a resource.
-A permission is testable if it can be tested for an identity on a resource.
+  <pre>Lists every permission that you can test on a resource. A permission is
+testable if you can check whether a member has that permission on the
+resource.
 
 Args:
   body: object, The request body.
     The object takes the form of:
 
 { # A request to get permissions which can be tested on a resource.
-    &quot;pageSize&quot;: 42, # Optional limit on the number of permissions to include in the response.
+    &quot;pageToken&quot;: &quot;A String&quot;, # Optional pagination token returned in an earlier
+        # QueryTestablePermissionsRequest.
     &quot;fullResourceName&quot;: &quot;A String&quot;, # Required. The full resource name to query from the list of testable
         # permissions.
         # 
         # The name follows the Google Cloud Platform resource format.
         # For example, a Cloud Platform project with id `my-project` will be named
         # `//cloudresourcemanager.googleapis.com/projects/my-project`.
-    &quot;pageToken&quot;: &quot;A String&quot;, # Optional pagination token returned in an earlier
-        # QueryTestablePermissionsRequest.
+    &quot;pageSize&quot;: 42, # Optional limit on the number of permissions to include in the response.
+        # 
+        # The default is 100, and the maximum is 1,000.
   }
 
   x__xgafv: string, V1 error format.
@@ -111,22 +114,22 @@
   An object of the form:
 
     { # The response containing permissions which can be tested on a resource.
-    &quot;permissions&quot;: [ # The Permissions testable on the requested resource.
-      { # A permission which can be included by a role.
-        &quot;onlyInPredefinedRoles&quot;: True or False,
-        &quot;primaryPermission&quot;: &quot;A String&quot;, # The preferred name for this permission. If present, then this permission is
-            # an alias of, and equivalent to, the listed primary_permission.
-        &quot;title&quot;: &quot;A String&quot;, # The title of this Permission.
-        &quot;description&quot;: &quot;A String&quot;, # A brief description of what this Permission is used for.
-            # This permission can ONLY be used in predefined roles.
-        &quot;customRolesSupportLevel&quot;: &quot;A String&quot;, # The current custom role support level.
-        &quot;apiDisabled&quot;: True or False, # The service API associated with the permission is not enabled.
-        &quot;stage&quot;: &quot;A String&quot;, # The current launch stage of the permission.
-        &quot;name&quot;: &quot;A String&quot;, # The name of this Permission.
-      },
-    ],
     &quot;nextPageToken&quot;: &quot;A String&quot;, # To retrieve the next page of results, set
         # `QueryTestableRolesRequest.page_token` to this value.
+    &quot;permissions&quot;: [ # The Permissions testable on the requested resource.
+      { # A permission which can be included by a role.
+        &quot;primaryPermission&quot;: &quot;A String&quot;, # The preferred name for this permission. If present, then this permission is
+            # an alias of, and equivalent to, the listed primary_permission.
+        &quot;description&quot;: &quot;A String&quot;, # A brief description of what this Permission is used for.
+            # This permission can ONLY be used in predefined roles.
+        &quot;name&quot;: &quot;A String&quot;, # The name of this Permission.
+        &quot;customRolesSupportLevel&quot;: &quot;A String&quot;, # The current custom role support level.
+        &quot;title&quot;: &quot;A String&quot;, # The title of this Permission.
+        &quot;onlyInPredefinedRoles&quot;: True or False,
+        &quot;stage&quot;: &quot;A String&quot;, # The current launch stage of the permission.
+        &quot;apiDisabled&quot;: True or False, # The service API associated with the permission is not enabled.
+      },
+    ],
   }</pre>
 </div>