docs: update generated docs (#981)

diff --git a/docs/dyn/iam_v1.roles.html b/docs/dyn/iam_v1.roles.html
index 6ab1358..8b855e2 100644
--- a/docs/dyn/iam_v1.roles.html
+++ b/docs/dyn/iam_v1.roles.html
@@ -76,23 +76,23 @@
 <h2>Instance Methods</h2>
 <p class="toc_element">
   <code><a href="#get">get(name, x__xgafv=None)</a></code></p>
-<p class="firstline">Gets a Role definition.</p>
+<p class="firstline">Gets the definition of a Role.</p>
 <p class="toc_element">
-  <code><a href="#list">list(showDeleted=None, pageToken=None, pageSize=None, view=None, parent=None, x__xgafv=None)</a></code></p>
-<p class="firstline">Lists the Roles defined on a resource.</p>
+  <code><a href="#list">list(showDeleted=None, parent=None, view=None, pageToken=None, pageSize=None, x__xgafv=None)</a></code></p>
+<p class="firstline">Lists every predefined Role that IAM supports, or every custom role</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>
 <p class="toc_element">
   <code><a href="#queryGrantableRoles">queryGrantableRoles(body=None, x__xgafv=None)</a></code></p>
-<p class="firstline">Queries roles that can be granted on a particular resource.</p>
+<p class="firstline">Lists roles that can be granted on a Google Cloud resource. A role is</p>
 <p class="toc_element">
   <code><a href="#queryGrantableRoles_next">queryGrantableRoles_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="get">get(name, x__xgafv=None)</code>
-  <pre>Gets a Role definition.
+  <pre>Gets the definition of a Role.
 
 Args:
   name: string, The `name` parameter&#x27;s value depends on the target resource for the
@@ -131,40 +131,35 @@
   An object of the form:
 
     { # A role in the Identity and Access Management API.
-    &quot;deleted&quot;: True or False, # The current deleted state of the role. This field is read only.
-        # It will be ignored in calls to CreateRole and UpdateRole.
-    &quot;title&quot;: &quot;A String&quot;, # Optional. A human-readable title for the role.  Typically this
-        # is limited to 100 UTF-8 bytes.
-    &quot;includedPermissions&quot;: [ # The names of the permissions this role grants when bound in an IAM policy.
-      &quot;A String&quot;,
-    ],
-    &quot;description&quot;: &quot;A String&quot;, # Optional. A human-readable description for the role.
-    &quot;etag&quot;: &quot;A String&quot;, # Used to perform a consistent read-modify-write.
-    &quot;stage&quot;: &quot;A String&quot;, # The current launch stage of the role. If the `ALPHA` launch stage has been
-        # selected for a role, the `stage` field will not be included in the
-        # returned definition for the role.
-    &quot;name&quot;: &quot;A String&quot;, # The name of the role.
-        #
-        # When Role is used in CreateRole, the role name must not be set.
-        #
-        # When Role is used in output and other input such as UpdateRole, the role
-        # name is the complete path, e.g., roles/logging.viewer for predefined roles
-        # and organizations/{ORGANIZATION_ID}/roles/logging.viewer for custom roles.
-  }</pre>
+      &quot;name&quot;: &quot;A String&quot;, # The name of the role.
+          #
+          # When Role is used in CreateRole, the role name must not be set.
+          #
+          # When Role is used in output and other input such as UpdateRole, the role
+          # name is the complete path, e.g., roles/logging.viewer for predefined roles
+          # and organizations/{ORGANIZATION_ID}/roles/logging.viewer for custom roles.
+      &quot;deleted&quot;: True or False, # The current deleted state of the role. This field is read only.
+          # It will be ignored in calls to CreateRole and UpdateRole.
+      &quot;title&quot;: &quot;A String&quot;, # Optional. A human-readable title for the role.  Typically this
+          # is limited to 100 UTF-8 bytes.
+      &quot;description&quot;: &quot;A String&quot;, # Optional. A human-readable description for the role.
+      &quot;etag&quot;: &quot;A String&quot;, # Used to perform a consistent read-modify-write.
+      &quot;includedPermissions&quot;: [ # The names of the permissions this role grants when bound in an IAM policy.
+        &quot;A String&quot;,
+      ],
+      &quot;stage&quot;: &quot;A String&quot;, # The current launch stage of the role. If the `ALPHA` launch stage has been
+          # selected for a role, the `stage` field will not be included in the
+          # returned definition for the role.
+    }</pre>
 </div>
 
 <div class="method">
-    <code class="details" id="list">list(showDeleted=None, pageToken=None, pageSize=None, view=None, parent=None, x__xgafv=None)</code>
-  <pre>Lists the Roles defined on a resource.
+    <code class="details" id="list">list(showDeleted=None, parent=None, view=None, pageToken=None, pageSize=None, x__xgafv=None)</code>
+  <pre>Lists every predefined Role that IAM supports, or every custom role
+that is defined for an organization or project.
 
 Args:
   showDeleted: boolean, Include Roles that have been deleted.
-  pageToken: string, Optional pagination token returned in an earlier ListRolesResponse.
-  pageSize: integer, Optional limit on the number of roles to include in the response.
-  view: string, Optional view for the returned Role objects. When `FULL` is specified,
-the `includedPermissions` field is returned, which includes a list of all
-permissions in the role. The default value is `BASIC`, which does not
-return the `includedPermissions` field.
   parent: string, The `parent` parameter&#x27;s value depends on the target resource for the
 request, namely
 [`roles`](/iam/reference/rest/v1/roles),
@@ -192,6 +187,14 @@
 
 Note: Wildcard (*) values are invalid; you must specify a complete project
 ID or organization ID.
+  view: string, Optional view for the returned Role objects. When `FULL` is specified,
+the `includedPermissions` field is returned, which includes a list of all
+permissions in the role. The default value is `BASIC`, which does not
+return the `includedPermissions` field.
+  pageToken: string, Optional pagination token returned in an earlier ListRolesResponse.
+  pageSize: integer, Optional limit on the number of roles to include in the response.
+
+The default is 300, and the maximum is 1,000.
   x__xgafv: string, V1 error format.
     Allowed values
       1 - v1 error format
@@ -201,31 +204,31 @@
   An object of the form:
 
     { # The response containing the roles defined under a resource.
-    &quot;roles&quot;: [ # The Roles defined on this resource.
-      { # A role in the Identity and Access Management API.
-        &quot;deleted&quot;: True or False, # The current deleted state of the role. This field is read only.
-            # It will be ignored in calls to CreateRole and UpdateRole.
-        &quot;title&quot;: &quot;A String&quot;, # Optional. A human-readable title for the role.  Typically this
-            # is limited to 100 UTF-8 bytes.
-        &quot;includedPermissions&quot;: [ # The names of the permissions this role grants when bound in an IAM policy.
-          &quot;A String&quot;,
-        ],
-        &quot;description&quot;: &quot;A String&quot;, # Optional. A human-readable description for the role.
-        &quot;etag&quot;: &quot;A String&quot;, # Used to perform a consistent read-modify-write.
-        &quot;stage&quot;: &quot;A String&quot;, # The current launch stage of the role. If the `ALPHA` launch stage has been
-            # selected for a role, the `stage` field will not be included in the
-            # returned definition for the role.
-        &quot;name&quot;: &quot;A String&quot;, # The name of the role.
-            #
-            # When Role is used in CreateRole, the role name must not be set.
-            #
-            # When Role is used in output and other input such as UpdateRole, the role
-            # name is the complete path, e.g., roles/logging.viewer for predefined roles
-            # and organizations/{ORGANIZATION_ID}/roles/logging.viewer for custom roles.
-      },
-    ],
     &quot;nextPageToken&quot;: &quot;A String&quot;, # To retrieve the next page of results, set
         # `ListRolesRequest.page_token` to this value.
+    &quot;roles&quot;: [ # The Roles defined on this resource.
+      { # A role in the Identity and Access Management API.
+          &quot;name&quot;: &quot;A String&quot;, # The name of the role.
+              #
+              # When Role is used in CreateRole, the role name must not be set.
+              #
+              # When Role is used in output and other input such as UpdateRole, the role
+              # name is the complete path, e.g., roles/logging.viewer for predefined roles
+              # and organizations/{ORGANIZATION_ID}/roles/logging.viewer for custom roles.
+          &quot;deleted&quot;: True or False, # The current deleted state of the role. This field is read only.
+              # It will be ignored in calls to CreateRole and UpdateRole.
+          &quot;title&quot;: &quot;A String&quot;, # Optional. A human-readable title for the role.  Typically this
+              # is limited to 100 UTF-8 bytes.
+          &quot;description&quot;: &quot;A String&quot;, # Optional. A human-readable description for the role.
+          &quot;etag&quot;: &quot;A String&quot;, # Used to perform a consistent read-modify-write.
+          &quot;includedPermissions&quot;: [ # The names of the permissions this role grants when bound in an IAM policy.
+            &quot;A String&quot;,
+          ],
+          &quot;stage&quot;: &quot;A String&quot;, # The current launch stage of the role. If the `ALPHA` launch stage has been
+              # selected for a role, the `stage` field will not be included in the
+              # returned definition for the role.
+        },
+    ],
   }</pre>
 </div>
 
@@ -245,24 +248,26 @@
 
 <div class="method">
     <code class="details" id="queryGrantableRoles">queryGrantableRoles(body=None, x__xgafv=None)</code>
-  <pre>Queries roles that can be granted on a particular resource.
-A role is grantable if it can be used as the role in a binding for a policy
-for that resource.
+  <pre>Lists roles that can be granted on a Google Cloud resource. A role is
+grantable if the IAM policy for the resource can contain bindings to the
+role.
 
 Args:
   body: object, The request body.
     The object takes the form of:
 
 { # The grantable role query request.
+    &quot;pageToken&quot;: &quot;A String&quot;, # Optional pagination token returned in an earlier
+        # QueryGrantableRolesResponse.
+    &quot;view&quot;: &quot;A String&quot;,
+    &quot;pageSize&quot;: 42, # Optional limit on the number of roles to include in the response.
+        # 
+        # The default is 300, and the maximum is 1,000.
     &quot;fullResourceName&quot;: &quot;A String&quot;, # Required. The full resource name to query from the list of grantable roles.
         # 
         # The name follows the Google Cloud Platform resource format.
         # For example, a Cloud Platform project with id `my-project` will be named
         # `//cloudresourcemanager.googleapis.com/projects/my-project`.
-    &quot;pageToken&quot;: &quot;A String&quot;, # Optional pagination token returned in an earlier
-        # QueryGrantableRolesResponse.
-    &quot;pageSize&quot;: 42, # Optional limit on the number of roles to include in the response.
-    &quot;view&quot;: &quot;A String&quot;,
   }
 
   x__xgafv: string, V1 error format.
@@ -276,26 +281,26 @@
     { # The grantable role query response.
     &quot;roles&quot;: [ # The list of matching roles.
       { # A role in the Identity and Access Management API.
-        &quot;deleted&quot;: True or False, # The current deleted state of the role. This field is read only.
-            # It will be ignored in calls to CreateRole and UpdateRole.
-        &quot;title&quot;: &quot;A String&quot;, # Optional. A human-readable title for the role.  Typically this
-            # is limited to 100 UTF-8 bytes.
-        &quot;includedPermissions&quot;: [ # The names of the permissions this role grants when bound in an IAM policy.
-          &quot;A String&quot;,
-        ],
-        &quot;description&quot;: &quot;A String&quot;, # Optional. A human-readable description for the role.
-        &quot;etag&quot;: &quot;A String&quot;, # Used to perform a consistent read-modify-write.
-        &quot;stage&quot;: &quot;A String&quot;, # The current launch stage of the role. If the `ALPHA` launch stage has been
-            # selected for a role, the `stage` field will not be included in the
-            # returned definition for the role.
-        &quot;name&quot;: &quot;A String&quot;, # The name of the role.
-            #
-            # When Role is used in CreateRole, the role name must not be set.
-            #
-            # When Role is used in output and other input such as UpdateRole, the role
-            # name is the complete path, e.g., roles/logging.viewer for predefined roles
-            # and organizations/{ORGANIZATION_ID}/roles/logging.viewer for custom roles.
-      },
+          &quot;name&quot;: &quot;A String&quot;, # The name of the role.
+              #
+              # When Role is used in CreateRole, the role name must not be set.
+              #
+              # When Role is used in output and other input such as UpdateRole, the role
+              # name is the complete path, e.g., roles/logging.viewer for predefined roles
+              # and organizations/{ORGANIZATION_ID}/roles/logging.viewer for custom roles.
+          &quot;deleted&quot;: True or False, # The current deleted state of the role. This field is read only.
+              # It will be ignored in calls to CreateRole and UpdateRole.
+          &quot;title&quot;: &quot;A String&quot;, # Optional. A human-readable title for the role.  Typically this
+              # is limited to 100 UTF-8 bytes.
+          &quot;description&quot;: &quot;A String&quot;, # Optional. A human-readable description for the role.
+          &quot;etag&quot;: &quot;A String&quot;, # Used to perform a consistent read-modify-write.
+          &quot;includedPermissions&quot;: [ # The names of the permissions this role grants when bound in an IAM policy.
+            &quot;A String&quot;,
+          ],
+          &quot;stage&quot;: &quot;A String&quot;, # The current launch stage of the role. If the `ALPHA` launch stage has been
+              # selected for a role, the `stage` field will not be included in the
+              # returned definition for the role.
+        },
     ],
     &quot;nextPageToken&quot;: &quot;A String&quot;, # To retrieve the next page of results, set
         # `QueryGrantableRolesRequest.page_token` to this value.