chore: regens API reference docs (#889)

diff --git a/docs/dyn/deploymentmanager_v2.deployments.html b/docs/dyn/deploymentmanager_v2.deployments.html
index 3ed4648..49750cd 100644
--- a/docs/dyn/deploymentmanager_v2.deployments.html
+++ b/docs/dyn/deploymentmanager_v2.deployments.html
@@ -75,7 +75,7 @@
 <h1><a href="deploymentmanager_v2.html">Google Cloud Deployment Manager API</a> . <a href="deploymentmanager_v2.deployments.html">deployments</a></h1>
 <h2>Instance Methods</h2>
 <p class="toc_element">
-  <code><a href="#cancelPreview">cancelPreview(project, deployment, body)</a></code></p>
+  <code><a href="#cancelPreview">cancelPreview(project, deployment, body=None)</a></code></p>
 <p class="firstline">Cancels and removes the preview currently associated with the deployment.</p>
 <p class="toc_element">
   <code><a href="#delete">delete(project, deployment, deletePolicy=None)</a></code></p>
@@ -87,7 +87,7 @@
   <code><a href="#getIamPolicy">getIamPolicy(project, resource)</a></code></p>
 <p class="firstline">Gets the access control policy for a resource. May be empty if no such policy or resource exists.</p>
 <p class="toc_element">
-  <code><a href="#insert">insert(project, body, createPolicy=None, preview=None)</a></code></p>
+  <code><a href="#insert">insert(project, body=None, createPolicy=None, preview=None)</a></code></p>
 <p class="firstline">Creates a deployment and all of the resources described by the deployment manifest.</p>
 <p class="toc_element">
   <code><a href="#list">list(project, orderBy=None, maxResults=None, pageToken=None, filter=None)</a></code></p>
@@ -96,29 +96,29 @@
   <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="#patch">patch(project, deployment, body, deletePolicy=None, createPolicy=None, preview=None)</a></code></p>
+  <code><a href="#patch">patch(project, deployment, body=None, deletePolicy=None, createPolicy=None, preview=None)</a></code></p>
 <p class="firstline">Updates a deployment and all of the resources described by the deployment manifest. This method supports patch semantics.</p>
 <p class="toc_element">
-  <code><a href="#setIamPolicy">setIamPolicy(project, resource, body)</a></code></p>
+  <code><a href="#setIamPolicy">setIamPolicy(project, resource, body=None)</a></code></p>
 <p class="firstline">Sets the access control policy on the specified resource. Replaces any existing policy.</p>
 <p class="toc_element">
-  <code><a href="#stop">stop(project, deployment, body)</a></code></p>
+  <code><a href="#stop">stop(project, deployment, body=None)</a></code></p>
 <p class="firstline">Stops an ongoing operation. This does not roll back any work that has already been completed, but prevents any new work from being started.</p>
 <p class="toc_element">
-  <code><a href="#testIamPermissions">testIamPermissions(project, resource, body)</a></code></p>
+  <code><a href="#testIamPermissions">testIamPermissions(project, resource, body=None)</a></code></p>
 <p class="firstline">Returns permissions that a caller has on the specified resource.</p>
 <p class="toc_element">
-  <code><a href="#update">update(project, deployment, body, deletePolicy=None, createPolicy=None, preview=None)</a></code></p>
+  <code><a href="#update">update(project, deployment, body=None, deletePolicy=None, createPolicy=None, preview=None)</a></code></p>
 <p class="firstline">Updates a deployment and all of the resources described by the deployment manifest.</p>
 <h3>Method Details</h3>
 <div class="method">
-    <code class="details" id="cancelPreview">cancelPreview(project, deployment, body)</code>
+    <code class="details" id="cancelPreview">cancelPreview(project, deployment, body=None)</code>
   <pre>Cancels and removes the preview currently associated with the deployment.
 
 Args:
   project: string, The project ID for this request. (required)
   deployment: string, The name of the deployment for this request. (required)
-  body: object, The request body. (required)
+  body: object, The request body.
     The object takes the form of:
 
 {
@@ -405,7 +405,7 @@
                 #
                 # Supported field names: - "authority", which is "[token]" if IAMContext.token is present, otherwise the value of IAMContext.authority_selector if present, and otherwise a representation of IAMContext.principal; or - "iam_principal", a representation of IAMContext.principal even if a token or authority selector is present; or - "" (empty string), resulting in a counter with no fields.
                 #
-                # Examples: counter { metric: "/debug_access_count" field: "iam_principal" } ==> increment counter /iam/policy/backend_debug_access_count {iam_principal=[value of IAMContext.principal]}
+                # Examples: counter { metric: "/debug_access_count" field: "iam_principal" } ==&gt; increment counter /iam/policy/backend_debug_access_count {iam_principal=[value of IAMContext.principal]}
                 #
                 # At this time we do not support multiple field names (though this may be supported in the future).
               "field": "A String", # The field value to attribute.
@@ -477,7 +477,7 @@
         ],
         "condition": { # Represents an expression text. Example: # Unimplemented. The condition that is associated with this binding. NOTE: an unsatisfied condition will not allow user access via current binding. Different bindings, including their conditions, are examined independently.
             #
-            # title: "User account presence" description: "Determines whether the request has a user account" expression: "size(request.user) > 0"
+            # title: "User account presence" description: "Determines whether the request has a user account" expression: "size(request.user) &gt; 0"
           "title": "A String", # An optional title for the expression, i.e. a short string describing its purpose. This can be used e.g. in UIs which allow to enter the expression.
           "expression": "A String", # Textual representation of an expression in Common Expression Language syntax.
               #
@@ -492,12 +492,12 @@
 </div>
 
 <div class="method">
-    <code class="details" id="insert">insert(project, body, createPolicy=None, preview=None)</code>
+    <code class="details" id="insert">insert(project, body=None, createPolicy=None, preview=None)</code>
   <pre>Creates a deployment and all of the resources described by the deployment manifest.
 
 Args:
   project: string, The project ID for this request. (required)
-  body: object, The request body. (required)
+  body: object, The request body.
     The object takes the form of:
 
 {
@@ -654,7 +654,7 @@
 Currently, only sorting by name or creationTimestamp desc is supported.
   maxResults: integer, The maximum number of results per page that should be returned. If the number of available results is larger than maxResults, Compute Engine returns a nextPageToken that can be used to get the next page of results in subsequent list requests. Acceptable values are 0 to 500, inclusive. (Default: 500)
   pageToken: string, Specifies a page token to use. Set pageToken to the nextPageToken returned by a previous list request to get the next page of results.
-  filter: string, A filter expression that filters resources listed in the response. The expression must specify the field name, a comparison operator, and the value that you want to use for filtering. The value must be a string, a number, or a boolean. The comparison operator must be either =, !=, >, or <.
+  filter: string, A filter expression that filters resources listed in the response. The expression must specify the field name, a comparison operator, and the value that you want to use for filtering. The value must be a string, a number, or a boolean. The comparison operator must be either =, !=, &gt;, or &lt;.
 
 For example, if you are filtering Compute Engine instances, you can exclude instances named example-instance by specifying name != example-instance.
 
@@ -771,13 +771,13 @@
 </div>
 
 <div class="method">
-    <code class="details" id="patch">patch(project, deployment, body, deletePolicy=None, createPolicy=None, preview=None)</code>
+    <code class="details" id="patch">patch(project, deployment, body=None, deletePolicy=None, createPolicy=None, preview=None)</code>
   <pre>Updates a deployment and all of the resources described by the deployment manifest. This method supports patch semantics.
 
 Args:
   project: string, The project ID for this request. (required)
   deployment: string, The name of the deployment for this request. (required)
-  body: object, The request body. (required)
+  body: object, The request body.
     The object takes the form of:
 
 {
@@ -926,13 +926,13 @@
 </div>
 
 <div class="method">
-    <code class="details" id="setIamPolicy">setIamPolicy(project, resource, body)</code>
+    <code class="details" id="setIamPolicy">setIamPolicy(project, resource, body=None)</code>
   <pre>Sets the access control policy on the specified resource. Replaces any existing policy.
 
 Args:
   project: string, Project ID for this request. (required)
   resource: string, Name or id of the resource for this request. (required)
-  body: object, The request body. (required)
+  body: object, The request body.
     The object takes the form of:
 
 {
@@ -993,7 +993,7 @@
                   #
                   # Supported field names: - "authority", which is "[token]" if IAMContext.token is present, otherwise the value of IAMContext.authority_selector if present, and otherwise a representation of IAMContext.principal; or - "iam_principal", a representation of IAMContext.principal even if a token or authority selector is present; or - "" (empty string), resulting in a counter with no fields.
                   #
-                  # Examples: counter { metric: "/debug_access_count" field: "iam_principal" } ==> increment counter /iam/policy/backend_debug_access_count {iam_principal=[value of IAMContext.principal]}
+                  # Examples: counter { metric: "/debug_access_count" field: "iam_principal" } ==&gt; increment counter /iam/policy/backend_debug_access_count {iam_principal=[value of IAMContext.principal]}
                   #
                   # At this time we do not support multiple field names (though this may be supported in the future).
                 "field": "A String", # The field value to attribute.
@@ -1065,7 +1065,7 @@
           ],
           "condition": { # Represents an expression text. Example: # Unimplemented. The condition that is associated with this binding. NOTE: an unsatisfied condition will not allow user access via current binding. Different bindings, including their conditions, are examined independently.
               #
-              # title: "User account presence" description: "Determines whether the request has a user account" expression: "size(request.user) > 0"
+              # title: "User account presence" description: "Determines whether the request has a user account" expression: "size(request.user) &gt; 0"
             "title": "A String", # An optional title for the expression, i.e. a short string describing its purpose. This can be used e.g. in UIs which allow to enter the expression.
             "expression": "A String", # Textual representation of an expression in Common Expression Language syntax.
                 #
@@ -1101,7 +1101,7 @@
         ],
         "condition": { # Represents an expression text. Example: # Unimplemented. The condition that is associated with this binding. NOTE: an unsatisfied condition will not allow user access via current binding. Different bindings, including their conditions, are examined independently.
             #
-            # title: "User account presence" description: "Determines whether the request has a user account" expression: "size(request.user) > 0"
+            # title: "User account presence" description: "Determines whether the request has a user account" expression: "size(request.user) &gt; 0"
           "title": "A String", # An optional title for the expression, i.e. a short string describing its purpose. This can be used e.g. in UIs which allow to enter the expression.
           "expression": "A String", # Textual representation of an expression in Common Expression Language syntax.
               #
@@ -1175,7 +1175,7 @@
                 #
                 # Supported field names: - "authority", which is "[token]" if IAMContext.token is present, otherwise the value of IAMContext.authority_selector if present, and otherwise a representation of IAMContext.principal; or - "iam_principal", a representation of IAMContext.principal even if a token or authority selector is present; or - "" (empty string), resulting in a counter with no fields.
                 #
-                # Examples: counter { metric: "/debug_access_count" field: "iam_principal" } ==> increment counter /iam/policy/backend_debug_access_count {iam_principal=[value of IAMContext.principal]}
+                # Examples: counter { metric: "/debug_access_count" field: "iam_principal" } ==&gt; increment counter /iam/policy/backend_debug_access_count {iam_principal=[value of IAMContext.principal]}
                 #
                 # At this time we do not support multiple field names (though this may be supported in the future).
               "field": "A String", # The field value to attribute.
@@ -1247,7 +1247,7 @@
         ],
         "condition": { # Represents an expression text. Example: # Unimplemented. The condition that is associated with this binding. NOTE: an unsatisfied condition will not allow user access via current binding. Different bindings, including their conditions, are examined independently.
             #
-            # title: "User account presence" description: "Determines whether the request has a user account" expression: "size(request.user) > 0"
+            # title: "User account presence" description: "Determines whether the request has a user account" expression: "size(request.user) &gt; 0"
           "title": "A String", # An optional title for the expression, i.e. a short string describing its purpose. This can be used e.g. in UIs which allow to enter the expression.
           "expression": "A String", # Textual representation of an expression in Common Expression Language syntax.
               #
@@ -1262,13 +1262,13 @@
 </div>
 
 <div class="method">
-    <code class="details" id="stop">stop(project, deployment, body)</code>
+    <code class="details" id="stop">stop(project, deployment, body=None)</code>
   <pre>Stops an ongoing operation. This does not roll back any work that has already been completed, but prevents any new work from being started.
 
 Args:
   project: string, The project ID for this request. (required)
   deployment: string, The name of the deployment for this request. (required)
-  body: object, The request body. (required)
+  body: object, The request body.
     The object takes the form of:
 
 {
@@ -1329,13 +1329,13 @@
 </div>
 
 <div class="method">
-    <code class="details" id="testIamPermissions">testIamPermissions(project, resource, body)</code>
+    <code class="details" id="testIamPermissions">testIamPermissions(project, resource, body=None)</code>
   <pre>Returns permissions that a caller has on the specified resource.
 
 Args:
   project: string, Project ID for this request. (required)
   resource: string, Name or id of the resource for this request. (required)
-  body: object, The request body. (required)
+  body: object, The request body.
     The object takes the form of:
 
 {
@@ -1356,13 +1356,13 @@
 </div>
 
 <div class="method">
-    <code class="details" id="update">update(project, deployment, body, deletePolicy=None, createPolicy=None, preview=None)</code>
+    <code class="details" id="update">update(project, deployment, body=None, deletePolicy=None, createPolicy=None, preview=None)</code>
   <pre>Updates a deployment and all of the resources described by the deployment manifest.
 
 Args:
   project: string, The project ID for this request. (required)
   deployment: string, The name of the deployment for this request. (required)
-  body: object, The request body. (required)
+  body: object, The request body.
     The object takes the form of:
 
 {