chore: regens API reference docs (#889)

diff --git a/docs/dyn/vault_v1.matters.html b/docs/dyn/vault_v1.matters.html
index f1d4c27..9e2ba45 100644
--- a/docs/dyn/vault_v1.matters.html
+++ b/docs/dyn/vault_v1.matters.html
@@ -90,13 +90,13 @@
 <p class="firstline">Returns the savedQueries Resource.</p>
 
 <p class="toc_element">
-  <code><a href="#addPermissions">addPermissions(matterId, body, x__xgafv=None)</a></code></p>
+  <code><a href="#addPermissions">addPermissions(matterId, body=None, x__xgafv=None)</a></code></p>
 <p class="firstline">Adds an account as a matter collaborator.</p>
 <p class="toc_element">
   <code><a href="#close">close(matterId, body=None, x__xgafv=None)</a></code></p>
 <p class="firstline">Closes the specified matter. Returns matter with updated state.</p>
 <p class="toc_element">
-  <code><a href="#create">create(body, x__xgafv=None)</a></code></p>
+  <code><a href="#create">create(body=None, x__xgafv=None)</a></code></p>
 <p class="firstline">Creates a new matter with the given name and description. The initial state</p>
 <p class="toc_element">
   <code><a href="#delete">delete(matterId, x__xgafv=None)</a></code></p>
@@ -111,7 +111,7 @@
   <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="#removePermissions">removePermissions(matterId, body, x__xgafv=None)</a></code></p>
+  <code><a href="#removePermissions">removePermissions(matterId, body=None, x__xgafv=None)</a></code></p>
 <p class="firstline">Removes an account as a matter collaborator.</p>
 <p class="toc_element">
   <code><a href="#reopen">reopen(matterId, body=None, x__xgafv=None)</a></code></p>
@@ -120,16 +120,16 @@
   <code><a href="#undelete">undelete(matterId, body=None, x__xgafv=None)</a></code></p>
 <p class="firstline">Undeletes the specified matter. Returns matter with updated state.</p>
 <p class="toc_element">
-  <code><a href="#update">update(matterId, body, x__xgafv=None)</a></code></p>
+  <code><a href="#update">update(matterId, body=None, x__xgafv=None)</a></code></p>
 <p class="firstline">Updates the specified matter.</p>
 <h3>Method Details</h3>
 <div class="method">
-    <code class="details" id="addPermissions">addPermissions(matterId, body, x__xgafv=None)</code>
+    <code class="details" id="addPermissions">addPermissions(matterId, body=None, x__xgafv=None)</code>
   <pre>Adds an account as a matter collaborator.
 
 Args:
   matterId: string, The matter ID. (required)
-  body: object, The request body. (required)
+  body: object, The request body.
     The object takes the form of:
 
 { # Add an account with the permission specified. The role cannot be owner.
@@ -144,8 +144,8 @@
         # When an account is purged, its corresponding MatterPermission resources
         # cease to exist.
       "role": "A String", # The user's role in this matter.
-      "accountId": "A String", # The account id, as provided by <a
-          # href="https://developers.google.com/admin-sdk/">Admin SDK</a>.
+      "accountId": "A String", # The account ID, as provided by &lt;a
+          # href="https://developers.google.com/admin-sdk/"&gt;Admin SDK&lt;/a&gt;.
     },
   }
 
@@ -161,8 +161,8 @@
       # When an account is purged, its corresponding MatterPermission resources
       # cease to exist.
     "role": "A String", # The user's role in this matter.
-    "accountId": "A String", # The account id, as provided by <a
-        # href="https://developers.google.com/admin-sdk/">Admin SDK</a>.
+    "accountId": "A String", # The account ID, as provided by &lt;a
+        # href="https://developers.google.com/admin-sdk/"&gt;Admin SDK&lt;/a&gt;.
   }</pre>
 </div>
 
@@ -188,18 +188,18 @@
 
     { # Response to a CloseMatterRequest.
     "matter": { # Represents a matter. # The updated matter, with state CLOSED.
+      "matterId": "A String", # The matter ID which is generated by the server.
+          # Should be blank when creating a new matter.
       "matterPermissions": [ # List of users and access to the matter. Currently there is no programmer
           # defined limit on the number of permissions a matter can have.
         { # Currently each matter only has one owner, and all others are collaborators.
             # When an account is purged, its corresponding MatterPermission resources
             # cease to exist.
           "role": "A String", # The user's role in this matter.
-          "accountId": "A String", # The account id, as provided by <a
-              # href="https://developers.google.com/admin-sdk/">Admin SDK</a>.
+          "accountId": "A String", # The account ID, as provided by &lt;a
+              # href="https://developers.google.com/admin-sdk/"&gt;Admin SDK&lt;/a&gt;.
         },
       ],
-      "matterId": "A String", # The matter ID which is generated by the server.
-          # Should be blank when creating a new matter.
       "state": "A String", # The state of the matter.
       "name": "A String", # The name of the matter.
       "description": "A String", # The description of the matter.
@@ -208,28 +208,28 @@
 </div>
 
 <div class="method">
-    <code class="details" id="create">create(body, x__xgafv=None)</code>
+    <code class="details" id="create">create(body=None, x__xgafv=None)</code>
   <pre>Creates a new matter with the given name and description. The initial state
 is open, and the owner is the method caller. Returns the created matter
 with default view.
 
 Args:
-  body: object, The request body. (required)
+  body: object, The request body.
     The object takes the form of:
 
 { # Represents a matter.
+  "matterId": "A String", # The matter ID which is generated by the server.
+      # Should be blank when creating a new matter.
   "matterPermissions": [ # List of users and access to the matter. Currently there is no programmer
       # defined limit on the number of permissions a matter can have.
     { # Currently each matter only has one owner, and all others are collaborators.
         # When an account is purged, its corresponding MatterPermission resources
         # cease to exist.
       "role": "A String", # The user's role in this matter.
-      "accountId": "A String", # The account id, as provided by <a
-          # href="https://developers.google.com/admin-sdk/">Admin SDK</a>.
+      "accountId": "A String", # The account ID, as provided by &lt;a
+          # href="https://developers.google.com/admin-sdk/"&gt;Admin SDK&lt;/a&gt;.
     },
   ],
-  "matterId": "A String", # The matter ID which is generated by the server.
-      # Should be blank when creating a new matter.
   "state": "A String", # The state of the matter.
   "name": "A String", # The name of the matter.
   "description": "A String", # The description of the matter.
@@ -244,18 +244,18 @@
   An object of the form:
 
     { # Represents a matter.
+    "matterId": "A String", # The matter ID which is generated by the server.
+        # Should be blank when creating a new matter.
     "matterPermissions": [ # List of users and access to the matter. Currently there is no programmer
         # defined limit on the number of permissions a matter can have.
       { # Currently each matter only has one owner, and all others are collaborators.
           # When an account is purged, its corresponding MatterPermission resources
           # cease to exist.
         "role": "A String", # The user's role in this matter.
-        "accountId": "A String", # The account id, as provided by <a
-            # href="https://developers.google.com/admin-sdk/">Admin SDK</a>.
+        "accountId": "A String", # The account ID, as provided by &lt;a
+            # href="https://developers.google.com/admin-sdk/"&gt;Admin SDK&lt;/a&gt;.
       },
     ],
-    "matterId": "A String", # The matter ID which is generated by the server.
-        # Should be blank when creating a new matter.
     "state": "A String", # The state of the matter.
     "name": "A String", # The name of the matter.
     "description": "A String", # The description of the matter.
@@ -277,18 +277,18 @@
   An object of the form:
 
     { # Represents a matter.
+    "matterId": "A String", # The matter ID which is generated by the server.
+        # Should be blank when creating a new matter.
     "matterPermissions": [ # List of users and access to the matter. Currently there is no programmer
         # defined limit on the number of permissions a matter can have.
       { # Currently each matter only has one owner, and all others are collaborators.
           # When an account is purged, its corresponding MatterPermission resources
           # cease to exist.
         "role": "A String", # The user's role in this matter.
-        "accountId": "A String", # The account id, as provided by <a
-            # href="https://developers.google.com/admin-sdk/">Admin SDK</a>.
+        "accountId": "A String", # The account ID, as provided by &lt;a
+            # href="https://developers.google.com/admin-sdk/"&gt;Admin SDK&lt;/a&gt;.
       },
     ],
-    "matterId": "A String", # The matter ID which is generated by the server.
-        # Should be blank when creating a new matter.
     "state": "A String", # The state of the matter.
     "name": "A String", # The name of the matter.
     "description": "A String", # The description of the matter.
@@ -311,18 +311,18 @@
   An object of the form:
 
     { # Represents a matter.
+    "matterId": "A String", # The matter ID which is generated by the server.
+        # Should be blank when creating a new matter.
     "matterPermissions": [ # List of users and access to the matter. Currently there is no programmer
         # defined limit on the number of permissions a matter can have.
       { # Currently each matter only has one owner, and all others are collaborators.
           # When an account is purged, its corresponding MatterPermission resources
           # cease to exist.
         "role": "A String", # The user's role in this matter.
-        "accountId": "A String", # The account id, as provided by <a
-            # href="https://developers.google.com/admin-sdk/">Admin SDK</a>.
+        "accountId": "A String", # The account ID, as provided by &lt;a
+            # href="https://developers.google.com/admin-sdk/"&gt;Admin SDK&lt;/a&gt;.
       },
     ],
-    "matterId": "A String", # The matter ID which is generated by the server.
-        # Should be blank when creating a new matter.
     "state": "A String", # The state of the matter.
     "name": "A String", # The name of the matter.
     "description": "A String", # The description of the matter.
@@ -352,18 +352,18 @@
     "nextPageToken": "A String", # Page token to retrieve the next page of results in the list.
     "matters": [ # List of matters.
       { # Represents a matter.
+        "matterId": "A String", # The matter ID which is generated by the server.
+            # Should be blank when creating a new matter.
         "matterPermissions": [ # List of users and access to the matter. Currently there is no programmer
             # defined limit on the number of permissions a matter can have.
           { # Currently each matter only has one owner, and all others are collaborators.
               # When an account is purged, its corresponding MatterPermission resources
               # cease to exist.
             "role": "A String", # The user's role in this matter.
-            "accountId": "A String", # The account id, as provided by <a
-                # href="https://developers.google.com/admin-sdk/">Admin SDK</a>.
+            "accountId": "A String", # The account ID, as provided by &lt;a
+                # href="https://developers.google.com/admin-sdk/"&gt;Admin SDK&lt;/a&gt;.
           },
         ],
-        "matterId": "A String", # The matter ID which is generated by the server.
-            # Should be blank when creating a new matter.
         "state": "A String", # The state of the matter.
         "name": "A String", # The name of the matter.
         "description": "A String", # The description of the matter.
@@ -387,12 +387,12 @@
 </div>
 
 <div class="method">
-    <code class="details" id="removePermissions">removePermissions(matterId, body, x__xgafv=None)</code>
+    <code class="details" id="removePermissions">removePermissions(matterId, body=None, x__xgafv=None)</code>
   <pre>Removes an account as a matter collaborator.
 
 Args:
   matterId: string, The matter ID. (required)
-  body: object, The request body. (required)
+  body: object, The request body.
     The object takes the form of:
 
 { # Remove an account as a matter collaborator.
@@ -441,18 +441,18 @@
 
     { # Response to a ReopenMatterRequest.
     "matter": { # Represents a matter. # The updated matter, with state OPEN.
+      "matterId": "A String", # The matter ID which is generated by the server.
+          # Should be blank when creating a new matter.
       "matterPermissions": [ # List of users and access to the matter. Currently there is no programmer
           # defined limit on the number of permissions a matter can have.
         { # Currently each matter only has one owner, and all others are collaborators.
             # When an account is purged, its corresponding MatterPermission resources
             # cease to exist.
           "role": "A String", # The user's role in this matter.
-          "accountId": "A String", # The account id, as provided by <a
-              # href="https://developers.google.com/admin-sdk/">Admin SDK</a>.
+          "accountId": "A String", # The account ID, as provided by &lt;a
+              # href="https://developers.google.com/admin-sdk/"&gt;Admin SDK&lt;/a&gt;.
         },
       ],
-      "matterId": "A String", # The matter ID which is generated by the server.
-          # Should be blank when creating a new matter.
       "state": "A String", # The state of the matter.
       "name": "A String", # The name of the matter.
       "description": "A String", # The description of the matter.
@@ -481,18 +481,18 @@
   An object of the form:
 
     { # Represents a matter.
+    "matterId": "A String", # The matter ID which is generated by the server.
+        # Should be blank when creating a new matter.
     "matterPermissions": [ # List of users and access to the matter. Currently there is no programmer
         # defined limit on the number of permissions a matter can have.
       { # Currently each matter only has one owner, and all others are collaborators.
           # When an account is purged, its corresponding MatterPermission resources
           # cease to exist.
         "role": "A String", # The user's role in this matter.
-        "accountId": "A String", # The account id, as provided by <a
-            # href="https://developers.google.com/admin-sdk/">Admin SDK</a>.
+        "accountId": "A String", # The account ID, as provided by &lt;a
+            # href="https://developers.google.com/admin-sdk/"&gt;Admin SDK&lt;/a&gt;.
       },
     ],
-    "matterId": "A String", # The matter ID which is generated by the server.
-        # Should be blank when creating a new matter.
     "state": "A String", # The state of the matter.
     "name": "A String", # The name of the matter.
     "description": "A String", # The description of the matter.
@@ -500,30 +500,30 @@
 </div>
 
 <div class="method">
-    <code class="details" id="update">update(matterId, body, x__xgafv=None)</code>
+    <code class="details" id="update">update(matterId, body=None, x__xgafv=None)</code>
   <pre>Updates the specified matter.
 This updates only the name and description of the matter, identified by
-matter id. Changes to any other fields are ignored.
+matter ID. Changes to any other fields are ignored.
 Returns the default view of the matter.
 
 Args:
   matterId: string, The matter ID. (required)
-  body: object, The request body. (required)
+  body: object, The request body.
     The object takes the form of:
 
 { # Represents a matter.
+  "matterId": "A String", # The matter ID which is generated by the server.
+      # Should be blank when creating a new matter.
   "matterPermissions": [ # List of users and access to the matter. Currently there is no programmer
       # defined limit on the number of permissions a matter can have.
     { # Currently each matter only has one owner, and all others are collaborators.
         # When an account is purged, its corresponding MatterPermission resources
         # cease to exist.
       "role": "A String", # The user's role in this matter.
-      "accountId": "A String", # The account id, as provided by <a
-          # href="https://developers.google.com/admin-sdk/">Admin SDK</a>.
+      "accountId": "A String", # The account ID, as provided by &lt;a
+          # href="https://developers.google.com/admin-sdk/"&gt;Admin SDK&lt;/a&gt;.
     },
   ],
-  "matterId": "A String", # The matter ID which is generated by the server.
-      # Should be blank when creating a new matter.
   "state": "A String", # The state of the matter.
   "name": "A String", # The name of the matter.
   "description": "A String", # The description of the matter.
@@ -538,18 +538,18 @@
   An object of the form:
 
     { # Represents a matter.
+    "matterId": "A String", # The matter ID which is generated by the server.
+        # Should be blank when creating a new matter.
     "matterPermissions": [ # List of users and access to the matter. Currently there is no programmer
         # defined limit on the number of permissions a matter can have.
       { # Currently each matter only has one owner, and all others are collaborators.
           # When an account is purged, its corresponding MatterPermission resources
           # cease to exist.
         "role": "A String", # The user's role in this matter.
-        "accountId": "A String", # The account id, as provided by <a
-            # href="https://developers.google.com/admin-sdk/">Admin SDK</a>.
+        "accountId": "A String", # The account ID, as provided by &lt;a
+            # href="https://developers.google.com/admin-sdk/"&gt;Admin SDK&lt;/a&gt;.
       },
     ],
-    "matterId": "A String", # The matter ID which is generated by the server.
-        # Should be blank when creating a new matter.
     "state": "A String", # The state of the matter.
     "name": "A String", # The name of the matter.
     "description": "A String", # The description of the matter.