Regen docs (#364)

diff --git a/docs/dyn/runtimeconfig_v1beta1.projects.configs.variables.html b/docs/dyn/runtimeconfig_v1beta1.projects.configs.variables.html
index b1837b9..fc4d1db 100644
--- a/docs/dyn/runtimeconfig_v1beta1.projects.configs.variables.html
+++ b/docs/dyn/runtimeconfig_v1beta1.projects.configs.variables.html
@@ -84,7 +84,7 @@
   <code><a href="#get">get(name=None, x__xgafv=None)</a></code></p>
 <p class="firstline">Gets information about a single variable.</p>
 <p class="toc_element">
-  <code><a href="#list">list(parent=None, pageSize=None, filter=None, pageToken=None, x__xgafv=None)</a></code></p>
+  <code><a href="#list">list(parent=None, pageSize=None, returnValues=None, filter=None, pageToken=None, x__xgafv=None)</a></code></p>
 <p class="firstline">Lists variables within given a configuration, matching any provided filters.</p>
 <p class="toc_element">
   <code><a href="#list_next">list_next(previous_request, previous_response)</a></code></p>
@@ -124,7 +124,7 @@
     # that do not have any child variables).
   "text": "A String", # The string value of the variable. The length of the value must be less
       # than 4096 bytes. Empty values are also accepted. For example,
-      # <code>text: "my text value"</code>.
+      # `text: "my text value"`. The string must be valid UTF-8.
   "updateTime": "A String", # [Output Only] The time of the last variable update.
   "state": "A String", # [Ouput only] The current state of the variable. The variable state indicates
       # the outcome of the `variables().watch` call and is visible through the
@@ -150,16 +150,16 @@
       # Once you create a variable, you cannot change the variable name.
 }
 
-  requestId: string, An optional but recommended unique <code>request_id</code>. If the server
-receives two <code>create()</code> requests  with the same
-<code>request_id</code>, then the second request will be ignored and the
+  requestId: string, An optional but recommended unique `request_id`. If the server
+receives two `create()` requests  with the same
+`request_id`, then the second request will be ignored and the
 first resource created and stored in the backend is returned.
-Empty <code>request_id</code> fields are ignored.
+Empty `request_id` fields are ignored.
 
 It is responsibility of the client to ensure uniqueness of the
-<code>request_id</code> strings.
+`request_id` strings.
 
-<code>request_id</code> strings are limited to 64 characters.
+`request_id` strings are limited to 64 characters.
   x__xgafv: string, V1 error format.
     Allowed values
       1 - v1 error format
@@ -175,7 +175,7 @@
       # that do not have any child variables).
     "text": "A String", # The string value of the variable. The length of the value must be less
         # than 4096 bytes. Empty values are also accepted. For example,
-        # <code>text: "my text value"</code>.
+        # `text: "my text value"`. The string must be valid UTF-8.
     "updateTime": "A String", # [Output Only] The time of the last variable update.
     "state": "A String", # [Ouput only] The current state of the variable. The variable state indicates
         # the outcome of the `variables().watch` call and is visible through the
@@ -260,7 +260,7 @@
       # that do not have any child variables).
     "text": "A String", # The string value of the variable. The length of the value must be less
         # than 4096 bytes. Empty values are also accepted. For example,
-        # <code>text: "my text value"</code>.
+        # `text: "my text value"`. The string must be valid UTF-8.
     "updateTime": "A String", # [Output Only] The time of the last variable update.
     "state": "A String", # [Ouput only] The current state of the variable. The variable state indicates
         # the outcome of the `variables().watch` call and is visible through the
@@ -288,9 +288,11 @@
 </div>
 
 <div class="method">
-    <code class="details" id="list">list(parent=None, pageSize=None, filter=None, pageToken=None, x__xgafv=None)</code>
+    <code class="details" id="list">list(parent=None, pageSize=None, returnValues=None, filter=None, pageToken=None, x__xgafv=None)</code>
   <pre>Lists variables within given a configuration, matching any provided filters.
-This only lists variable names, not the values.
+This only lists variable names, not the values, unless `return_values` is
+true, in which case only variables that user has IAM permission to GetVariable
+will be returned.
 
 Args:
   parent: string, The path to the RuntimeConfig resource for which you want to list variables.
@@ -299,6 +301,9 @@
 `projects/[PROJECT_ID]/configs/[CONFIG_NAME]` (required)
   pageSize: integer, Specifies the number of results to return per page. If there are fewer
 elements than the specified number, returns all elements.
+  returnValues: boolean, The flag indicates whether the user wants to return values of variables.
+If true, then only those variables that user has IAM GetVariable permission
+will be returned along with their values.
   filter: string, Filters variables by matching the specified filter. For example:
 
 `projects/example-project/config/[CONFIG_NAME]/variables/example-variable`.
@@ -327,7 +332,7 @@
           # that do not have any child variables).
         "text": "A String", # The string value of the variable. The length of the value must be less
             # than 4096 bytes. Empty values are also accepted. For example,
-            # <code>text: "my text value"</code>.
+            # `text: "my text value"`. The string must be valid UTF-8.
         "updateTime": "A String", # [Output Only] The time of the last variable update.
         "state": "A String", # [Ouput only] The current state of the variable. The variable state indicates
             # the outcome of the `variables().watch` call and is visible through the
@@ -376,10 +381,13 @@
 If the resource does not exist, this will return an empty set of
 permissions, not a NOT_FOUND error.
 
+Note: This operation is designed to be used for building permission-aware
+UIs and command-line tools, not for authorization checking. This operation
+may "fail open" without warning.
+
 Args:
   resource: string, REQUIRED: The resource for which the policy detail is being requested.
-`resource` is usually specified as a path. For example, a Project
-resource is specified as `projects/{project}`. (required)
+See the operation documentation for the appropriate value for this field. (required)
   x__xgafv: string, V1 error format.
     Allowed values
       1 - v1 error format
@@ -418,7 +426,7 @@
     # that do not have any child variables).
   "text": "A String", # The string value of the variable. The length of the value must be less
       # than 4096 bytes. Empty values are also accepted. For example,
-      # <code>text: "my text value"</code>.
+      # `text: "my text value"`. The string must be valid UTF-8.
   "updateTime": "A String", # [Output Only] The time of the last variable update.
   "state": "A String", # [Ouput only] The current state of the variable. The variable state indicates
       # the outcome of the `variables().watch` call and is visible through the
@@ -459,7 +467,7 @@
       # that do not have any child variables).
     "text": "A String", # The string value of the variable. The length of the value must be less
         # than 4096 bytes. Empty values are also accepted. For example,
-        # <code>text: "my text value"</code>.
+        # `text: "my text value"`. The string must be valid UTF-8.
     "updateTime": "A String", # [Output Only] The time of the last variable update.
     "state": "A String", # [Ouput only] The current state of the variable. The variable state indicates
         # the outcome of the `variables().watch` call and is visible through the
@@ -533,7 +541,7 @@
       # that do not have any child variables).
     "text": "A String", # The string value of the variable. The length of the value must be less
         # than 4096 bytes. Empty values are also accepted. For example,
-        # <code>text: "my text value"</code>.
+        # `text: "my text value"`. The string must be valid UTF-8.
     "updateTime": "A String", # [Output Only] The time of the last variable update.
     "state": "A String", # [Ouput only] The current state of the variable. The variable state indicates
         # the outcome of the `variables().watch` call and is visible through the