build: run docs regen in synth.py (#1059)

diff --git a/docs/dyn/cloudbilling_v1.billingAccounts.projects.html b/docs/dyn/cloudbilling_v1.billingAccounts.projects.html
index 6018bf1..e7dc0c6 100644
--- a/docs/dyn/cloudbilling_v1.billingAccounts.projects.html
+++ b/docs/dyn/cloudbilling_v1.billingAccounts.projects.html
@@ -78,7 +78,7 @@
   <code><a href="#close">close()</a></code></p>
 <p class="firstline">Close httplib2 connections.</p>
 <p class="toc_element">
-  <code><a href="#list">list(name, pageToken=None, pageSize=None, x__xgafv=None)</a></code></p>
+  <code><a href="#list">list(name, pageSize=None, pageToken=None, x__xgafv=None)</a></code></p>
 <p class="firstline">Lists the projects associated with a billing account. The current authenticated user must have the `billing.resourceAssociations.list` IAM permission, which is often given to billing account [viewers](https://cloud.google.com/billing/docs/how-to/billing-access).</p>
 <p class="toc_element">
   <code><a href="#list_next">list_next(previous_request, previous_response)</a></code></p>
@@ -90,13 +90,13 @@
 </div>
 
 <div class="method">
-    <code class="details" id="list">list(name, pageToken=None, pageSize=None, x__xgafv=None)</code>
+    <code class="details" id="list">list(name, pageSize=None, pageToken=None, x__xgafv=None)</code>
   <pre>Lists the projects associated with a billing account. The current authenticated user must have the `billing.resourceAssociations.list` IAM permission, which is often given to billing account [viewers](https://cloud.google.com/billing/docs/how-to/billing-access).
 
 Args:
   name: string, Required. The resource name of the billing account associated with the projects that you want to list. For example, `billingAccounts/012345-567890-ABCDEF`. (required)
-  pageToken: string, A token identifying a page of results to be returned. This should be a `next_page_token` value returned from a previous `ListProjectBillingInfo` call. If unspecified, the first page of results is returned.
   pageSize: integer, Requested page size. The maximum page size is 100; this is also the default.
+  pageToken: string, A token identifying a page of results to be returned. This should be a `next_page_token` value returned from a previous `ListProjectBillingInfo` call. If unspecified, the first page of results is returned.
   x__xgafv: string, V1 error format.
     Allowed values
       1 - v1 error format
@@ -108,10 +108,10 @@
     { # Request message for `ListProjectBillingInfoResponse`.
     &quot;projectBillingInfo&quot;: [ # A list of `ProjectBillingInfo` resources representing the projects associated with the billing account.
       { # Encapsulation of billing information for a Google Cloud Console project. A project has at most one associated billing account at a time (but a billing account can be assigned to multiple projects).
-        &quot;billingEnabled&quot;: True or False, # True if the project is associated with an open billing account, to which usage on the project is charged. False if the project is associated with a closed billing account, or no billing account at all, and therefore cannot use paid services. This field is read-only.
-        &quot;billingAccountName&quot;: &quot;A String&quot;, # The resource name of the billing account associated with the project, if any. For example, `billingAccounts/012345-567890-ABCDEF`.
-        &quot;name&quot;: &quot;A String&quot;, # The resource name for the `ProjectBillingInfo`; has the form `projects/{project_id}/billingInfo`. For example, the resource name for the billing information for project `tokyo-rain-123` would be `projects/tokyo-rain-123/billingInfo`. This field is read-only.
         &quot;projectId&quot;: &quot;A String&quot;, # The ID of the project that this `ProjectBillingInfo` represents, such as `tokyo-rain-123`. This is a convenience field so that you don&#x27;t need to parse the `name` field to obtain a project ID. This field is read-only.
+        &quot;billingAccountName&quot;: &quot;A String&quot;, # The resource name of the billing account associated with the project, if any. For example, `billingAccounts/012345-567890-ABCDEF`.
+        &quot;billingEnabled&quot;: True or False, # True if the project is associated with an open billing account, to which usage on the project is charged. False if the project is associated with a closed billing account, or no billing account at all, and therefore cannot use paid services. This field is read-only.
+        &quot;name&quot;: &quot;A String&quot;, # The resource name for the `ProjectBillingInfo`; has the form `projects/{project_id}/billingInfo`. For example, the resource name for the billing information for project `tokyo-rain-123` would be `projects/tokyo-rain-123/billingInfo`. This field is read-only.
       },
     ],
     &quot;nextPageToken&quot;: &quot;A String&quot;, # A token to retrieve the next page of results. To retrieve the next page, call `ListProjectBillingInfo` again with the `page_token` field set to this value. This field is empty if there are no more results to retrieve.