chore: regens API reference docs (#889)

diff --git a/docs/dyn/accessapproval_v1beta1.projects.approvalRequests.html b/docs/dyn/accessapproval_v1beta1.projects.approvalRequests.html
index bccc899..63a0b6e 100644
--- a/docs/dyn/accessapproval_v1beta1.projects.approvalRequests.html
+++ b/docs/dyn/accessapproval_v1beta1.projects.approvalRequests.html
@@ -75,7 +75,7 @@
 <h1><a href="accessapproval_v1beta1.html">Access Approval API</a> . <a href="accessapproval_v1beta1.projects.html">projects</a> . <a href="accessapproval_v1beta1.projects.approvalRequests.html">approvalRequests</a></h1>
 <h2>Instance Methods</h2>
 <p class="toc_element">
-  <code><a href="#approve">approve(name, body, x__xgafv=None)</a></code></p>
+  <code><a href="#approve">approve(name, body=None, x__xgafv=None)</a></code></p>
 <p class="firstline">Approves a request and returns the updated ApprovalRequest.</p>
 <p class="toc_element">
   <code><a href="#dismiss">dismiss(name, body=None, x__xgafv=None)</a></code></p>
@@ -84,14 +84,14 @@
   <code><a href="#get">get(name, x__xgafv=None)</a></code></p>
 <p class="firstline">Gets an approval request. Returns NOT_FOUND if the request does not exist.</p>
 <p class="toc_element">
-  <code><a href="#list">list(parent, pageSize=None, pageToken=None, x__xgafv=None, filter=None)</a></code></p>
+  <code><a href="#list">list(parent, pageToken=None, x__xgafv=None, pageSize=None, filter=None)</a></code></p>
 <p class="firstline">Lists approval requests associated with a project, folder, or organization.</p>
 <p class="toc_element">
   <code><a href="#list_next">list_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="approve">approve(name, body, x__xgafv=None)</code>
+    <code class="details" id="approve">approve(name, body=None, x__xgafv=None)</code>
   <pre>Approves a request and returns the updated ApprovalRequest.
 
 Returns NOT_FOUND if the request does not exist. Returns
@@ -99,7 +99,7 @@
 
 Args:
   name: string, Name of the approval request to approve. (required)
-  body: object, The request body. (required)
+  body: object, The request body.
     The object takes the form of:
 
 { # Request to approve an ApprovalRequest.
@@ -143,36 +143,36 @@
       "approveTime": "A String", # The time at which approval was granted.
     },
     "requestedLocations": { # Home office and physical location of the principal. # The locations for which approval is being requested.
-      "principalOfficeCountry": "A String", # The "home office" location of the principal. A two-letter country code
-          # (ISO 3166-1 alpha-2), such as "US", "DE" or "GB" or a region code. In some
-          # limited situations Google systems may refer refer to a region code instead
-          # of a country code.
-          # Possible Region Codes:
-          # <ol>
-          #   <li>ASI: Asia</li>
-          #   <li>EUR: Europe</li>
-          #   <li>OCE: Oceania</li>
-          #   <li>AFR: Africa</li>
-          #   <li>NAM: North America</li>
-          #   <li>SAM: South America</li>
-          #   <li>ANT: Antarctica</li>
-          #   <li>ANY: Any location</li>
-          # </ol>
       "principalPhysicalLocationCountry": "A String", # Physical location of the principal at the time of the access. A
           # two-letter country code (ISO 3166-1 alpha-2), such as "US", "DE" or "GB" or
           # a region code. In some limited situations Google systems may refer refer to
           # a region code instead of a country code.
           # Possible Region Codes:
-          # <ol>
-          #   <li>ASI: Asia</li>
-          #   <li>EUR: Europe</li>
-          #   <li>OCE: Oceania</li>
-          #   <li>AFR: Africa</li>
-          #   <li>NAM: North America</li>
-          #   <li>SAM: South America</li>
-          #   <li>ANT: Antarctica</li>
-          #   <li>ANY: Any location</li>
-          # </ol>
+          # &lt;ol&gt;
+          #   &lt;li&gt;ASI: Asia&lt;/li&gt;
+          #   &lt;li&gt;EUR: Europe&lt;/li&gt;
+          #   &lt;li&gt;OCE: Oceania&lt;/li&gt;
+          #   &lt;li&gt;AFR: Africa&lt;/li&gt;
+          #   &lt;li&gt;NAM: North America&lt;/li&gt;
+          #   &lt;li&gt;SAM: South America&lt;/li&gt;
+          #   &lt;li&gt;ANT: Antarctica&lt;/li&gt;
+          #   &lt;li&gt;ANY: Any location&lt;/li&gt;
+          # &lt;/ol&gt;
+      "principalOfficeCountry": "A String", # The "home office" location of the principal. A two-letter country code
+          # (ISO 3166-1 alpha-2), such as "US", "DE" or "GB" or a region code. In some
+          # limited situations Google systems may refer refer to a region code instead
+          # of a country code.
+          # Possible Region Codes:
+          # &lt;ol&gt;
+          #   &lt;li&gt;ASI: Asia&lt;/li&gt;
+          #   &lt;li&gt;EUR: Europe&lt;/li&gt;
+          #   &lt;li&gt;OCE: Oceania&lt;/li&gt;
+          #   &lt;li&gt;AFR: Africa&lt;/li&gt;
+          #   &lt;li&gt;NAM: North America&lt;/li&gt;
+          #   &lt;li&gt;SAM: South America&lt;/li&gt;
+          #   &lt;li&gt;ANT: Antarctica&lt;/li&gt;
+          #   &lt;li&gt;ANY: Any location&lt;/li&gt;
+          # &lt;/ol&gt;
     },
   }</pre>
 </div>
@@ -235,36 +235,36 @@
       "approveTime": "A String", # The time at which approval was granted.
     },
     "requestedLocations": { # Home office and physical location of the principal. # The locations for which approval is being requested.
-      "principalOfficeCountry": "A String", # The "home office" location of the principal. A two-letter country code
-          # (ISO 3166-1 alpha-2), such as "US", "DE" or "GB" or a region code. In some
-          # limited situations Google systems may refer refer to a region code instead
-          # of a country code.
-          # Possible Region Codes:
-          # <ol>
-          #   <li>ASI: Asia</li>
-          #   <li>EUR: Europe</li>
-          #   <li>OCE: Oceania</li>
-          #   <li>AFR: Africa</li>
-          #   <li>NAM: North America</li>
-          #   <li>SAM: South America</li>
-          #   <li>ANT: Antarctica</li>
-          #   <li>ANY: Any location</li>
-          # </ol>
       "principalPhysicalLocationCountry": "A String", # Physical location of the principal at the time of the access. A
           # two-letter country code (ISO 3166-1 alpha-2), such as "US", "DE" or "GB" or
           # a region code. In some limited situations Google systems may refer refer to
           # a region code instead of a country code.
           # Possible Region Codes:
-          # <ol>
-          #   <li>ASI: Asia</li>
-          #   <li>EUR: Europe</li>
-          #   <li>OCE: Oceania</li>
-          #   <li>AFR: Africa</li>
-          #   <li>NAM: North America</li>
-          #   <li>SAM: South America</li>
-          #   <li>ANT: Antarctica</li>
-          #   <li>ANY: Any location</li>
-          # </ol>
+          # &lt;ol&gt;
+          #   &lt;li&gt;ASI: Asia&lt;/li&gt;
+          #   &lt;li&gt;EUR: Europe&lt;/li&gt;
+          #   &lt;li&gt;OCE: Oceania&lt;/li&gt;
+          #   &lt;li&gt;AFR: Africa&lt;/li&gt;
+          #   &lt;li&gt;NAM: North America&lt;/li&gt;
+          #   &lt;li&gt;SAM: South America&lt;/li&gt;
+          #   &lt;li&gt;ANT: Antarctica&lt;/li&gt;
+          #   &lt;li&gt;ANY: Any location&lt;/li&gt;
+          # &lt;/ol&gt;
+      "principalOfficeCountry": "A String", # The "home office" location of the principal. A two-letter country code
+          # (ISO 3166-1 alpha-2), such as "US", "DE" or "GB" or a region code. In some
+          # limited situations Google systems may refer refer to a region code instead
+          # of a country code.
+          # Possible Region Codes:
+          # &lt;ol&gt;
+          #   &lt;li&gt;ASI: Asia&lt;/li&gt;
+          #   &lt;li&gt;EUR: Europe&lt;/li&gt;
+          #   &lt;li&gt;OCE: Oceania&lt;/li&gt;
+          #   &lt;li&gt;AFR: Africa&lt;/li&gt;
+          #   &lt;li&gt;NAM: North America&lt;/li&gt;
+          #   &lt;li&gt;SAM: South America&lt;/li&gt;
+          #   &lt;li&gt;ANT: Antarctica&lt;/li&gt;
+          #   &lt;li&gt;ANY: Any location&lt;/li&gt;
+          # &lt;/ol&gt;
     },
   }</pre>
 </div>
@@ -312,42 +312,42 @@
       "approveTime": "A String", # The time at which approval was granted.
     },
     "requestedLocations": { # Home office and physical location of the principal. # The locations for which approval is being requested.
-      "principalOfficeCountry": "A String", # The "home office" location of the principal. A two-letter country code
-          # (ISO 3166-1 alpha-2), such as "US", "DE" or "GB" or a region code. In some
-          # limited situations Google systems may refer refer to a region code instead
-          # of a country code.
-          # Possible Region Codes:
-          # <ol>
-          #   <li>ASI: Asia</li>
-          #   <li>EUR: Europe</li>
-          #   <li>OCE: Oceania</li>
-          #   <li>AFR: Africa</li>
-          #   <li>NAM: North America</li>
-          #   <li>SAM: South America</li>
-          #   <li>ANT: Antarctica</li>
-          #   <li>ANY: Any location</li>
-          # </ol>
       "principalPhysicalLocationCountry": "A String", # Physical location of the principal at the time of the access. A
           # two-letter country code (ISO 3166-1 alpha-2), such as "US", "DE" or "GB" or
           # a region code. In some limited situations Google systems may refer refer to
           # a region code instead of a country code.
           # Possible Region Codes:
-          # <ol>
-          #   <li>ASI: Asia</li>
-          #   <li>EUR: Europe</li>
-          #   <li>OCE: Oceania</li>
-          #   <li>AFR: Africa</li>
-          #   <li>NAM: North America</li>
-          #   <li>SAM: South America</li>
-          #   <li>ANT: Antarctica</li>
-          #   <li>ANY: Any location</li>
-          # </ol>
+          # &lt;ol&gt;
+          #   &lt;li&gt;ASI: Asia&lt;/li&gt;
+          #   &lt;li&gt;EUR: Europe&lt;/li&gt;
+          #   &lt;li&gt;OCE: Oceania&lt;/li&gt;
+          #   &lt;li&gt;AFR: Africa&lt;/li&gt;
+          #   &lt;li&gt;NAM: North America&lt;/li&gt;
+          #   &lt;li&gt;SAM: South America&lt;/li&gt;
+          #   &lt;li&gt;ANT: Antarctica&lt;/li&gt;
+          #   &lt;li&gt;ANY: Any location&lt;/li&gt;
+          # &lt;/ol&gt;
+      "principalOfficeCountry": "A String", # The "home office" location of the principal. A two-letter country code
+          # (ISO 3166-1 alpha-2), such as "US", "DE" or "GB" or a region code. In some
+          # limited situations Google systems may refer refer to a region code instead
+          # of a country code.
+          # Possible Region Codes:
+          # &lt;ol&gt;
+          #   &lt;li&gt;ASI: Asia&lt;/li&gt;
+          #   &lt;li&gt;EUR: Europe&lt;/li&gt;
+          #   &lt;li&gt;OCE: Oceania&lt;/li&gt;
+          #   &lt;li&gt;AFR: Africa&lt;/li&gt;
+          #   &lt;li&gt;NAM: North America&lt;/li&gt;
+          #   &lt;li&gt;SAM: South America&lt;/li&gt;
+          #   &lt;li&gt;ANT: Antarctica&lt;/li&gt;
+          #   &lt;li&gt;ANY: Any location&lt;/li&gt;
+          # &lt;/ol&gt;
     },
   }</pre>
 </div>
 
 <div class="method">
-    <code class="details" id="list">list(parent, pageSize=None, pageToken=None, x__xgafv=None, filter=None)</code>
+    <code class="details" id="list">list(parent, pageToken=None, x__xgafv=None, pageSize=None, filter=None)</code>
   <pre>Lists approval requests associated with a project, folder, or organization.
 Approval requests can be filtered by state (pending, active, dismissed).
 The order is reverse chronological.
@@ -355,21 +355,21 @@
 Args:
   parent: string, The parent resource. This may be "projects/{project_id}",
 "folders/{folder_id}", or "organizations/{organization_id}". (required)
-  pageSize: integer, Requested page size.
   pageToken: string, A token identifying the page of results to return.
   x__xgafv: string, V1 error format.
     Allowed values
       1 - v1 error format
       2 - v2 error format
+  pageSize: integer, Requested page size.
   filter: string, A filter on the type of approval requests to retrieve. Must be one of the
 following values:
-<ol>
-  <li>[not set]: Requests that are pending or have active approvals.</li>
-  <li>ALL: All requests.</li>
-  <li>PENDING: Only pending requests.</li>
-  <li>ACTIVE: Only active (i.e. currently approved) requests.</li>
-  <li>DISMISSED: Only dismissed (including expired) requests.</li>
-</ol>
+&lt;ol&gt;
+  &lt;li&gt;[not set]: Requests that are pending or have active approvals.&lt;/li&gt;
+  &lt;li&gt;ALL: All requests.&lt;/li&gt;
+  &lt;li&gt;PENDING: Only pending requests.&lt;/li&gt;
+  &lt;li&gt;ACTIVE: Only active (i.e. currently approved) requests.&lt;/li&gt;
+  &lt;li&gt;DISMISSED: Only dismissed (including expired) requests.&lt;/li&gt;
+&lt;/ol&gt;
 
 Returns:
   An object of the form:
@@ -406,36 +406,36 @@
           "approveTime": "A String", # The time at which approval was granted.
         },
         "requestedLocations": { # Home office and physical location of the principal. # The locations for which approval is being requested.
-          "principalOfficeCountry": "A String", # The "home office" location of the principal. A two-letter country code
-              # (ISO 3166-1 alpha-2), such as "US", "DE" or "GB" or a region code. In some
-              # limited situations Google systems may refer refer to a region code instead
-              # of a country code.
-              # Possible Region Codes:
-              # <ol>
-              #   <li>ASI: Asia</li>
-              #   <li>EUR: Europe</li>
-              #   <li>OCE: Oceania</li>
-              #   <li>AFR: Africa</li>
-              #   <li>NAM: North America</li>
-              #   <li>SAM: South America</li>
-              #   <li>ANT: Antarctica</li>
-              #   <li>ANY: Any location</li>
-              # </ol>
           "principalPhysicalLocationCountry": "A String", # Physical location of the principal at the time of the access. A
               # two-letter country code (ISO 3166-1 alpha-2), such as "US", "DE" or "GB" or
               # a region code. In some limited situations Google systems may refer refer to
               # a region code instead of a country code.
               # Possible Region Codes:
-              # <ol>
-              #   <li>ASI: Asia</li>
-              #   <li>EUR: Europe</li>
-              #   <li>OCE: Oceania</li>
-              #   <li>AFR: Africa</li>
-              #   <li>NAM: North America</li>
-              #   <li>SAM: South America</li>
-              #   <li>ANT: Antarctica</li>
-              #   <li>ANY: Any location</li>
-              # </ol>
+              # &lt;ol&gt;
+              #   &lt;li&gt;ASI: Asia&lt;/li&gt;
+              #   &lt;li&gt;EUR: Europe&lt;/li&gt;
+              #   &lt;li&gt;OCE: Oceania&lt;/li&gt;
+              #   &lt;li&gt;AFR: Africa&lt;/li&gt;
+              #   &lt;li&gt;NAM: North America&lt;/li&gt;
+              #   &lt;li&gt;SAM: South America&lt;/li&gt;
+              #   &lt;li&gt;ANT: Antarctica&lt;/li&gt;
+              #   &lt;li&gt;ANY: Any location&lt;/li&gt;
+              # &lt;/ol&gt;
+          "principalOfficeCountry": "A String", # The "home office" location of the principal. A two-letter country code
+              # (ISO 3166-1 alpha-2), such as "US", "DE" or "GB" or a region code. In some
+              # limited situations Google systems may refer refer to a region code instead
+              # of a country code.
+              # Possible Region Codes:
+              # &lt;ol&gt;
+              #   &lt;li&gt;ASI: Asia&lt;/li&gt;
+              #   &lt;li&gt;EUR: Europe&lt;/li&gt;
+              #   &lt;li&gt;OCE: Oceania&lt;/li&gt;
+              #   &lt;li&gt;AFR: Africa&lt;/li&gt;
+              #   &lt;li&gt;NAM: North America&lt;/li&gt;
+              #   &lt;li&gt;SAM: South America&lt;/li&gt;
+              #   &lt;li&gt;ANT: Antarctica&lt;/li&gt;
+              #   &lt;li&gt;ANY: Any location&lt;/li&gt;
+              # &lt;/ol&gt;
         },
       },
     ],