chore: regens API reference docs (#889)

diff --git a/docs/dyn/compute_alpha.routes.html b/docs/dyn/compute_alpha.routes.html
index b9ed771..d63c334 100644
--- a/docs/dyn/compute_alpha.routes.html
+++ b/docs/dyn/compute_alpha.routes.html
@@ -81,16 +81,16 @@
   <code><a href="#get">get(project, route)</a></code></p>
 <p class="firstline">Returns the specified Route resource. Gets a list of available routes by making a list() request.</p>
 <p class="toc_element">
-  <code><a href="#insert">insert(project, body, requestId=None)</a></code></p>
+  <code><a href="#insert">insert(project, body=None, requestId=None)</a></code></p>
 <p class="firstline">Creates a Route resource in the specified project using the data included in the request.</p>
 <p class="toc_element">
-  <code><a href="#list">list(project, orderBy=None, maxResults=None, pageToken=None, filter=None)</a></code></p>
+  <code><a href="#list">list(project, orderBy=None, maxResults=None, pageToken=None, returnPartialSuccess=None, filter=None)</a></code></p>
 <p class="firstline">Retrieves the list of Route resources available to the specified project.</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="#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>
 <h3>Method Details</h3>
 <div class="method">
@@ -111,26 +111,30 @@
 
     { # Represents an Operation resource.
       #
+      # Google Compute Engine has three Operation resources:
+      #
+      # * [Global](/compute/docs/reference/rest/{$api_version}/globalOperations) * [Regional](/compute/docs/reference/rest/{$api_version}/regionOperations) * [Zonal](/compute/docs/reference/rest/{$api_version}/zoneOperations)
+      #
       # You can use an operation resource to manage asynchronous API requests. For more information, read Handling API responses.
       #
       # Operations can be global, regional or zonal.
-      # - For global operations, use the globalOperations resource.
-      # - For regional operations, use the regionOperations resource.
-      # - For zonal operations, use the zonalOperations resource.
+      # - For global operations, use the `globalOperations` resource.
+      # - For regional operations, use the `regionOperations` resource.
+      # - For zonal operations, use the `zonalOperations` resource.
       #
-      # For more information, read  Global, Regional, and Zonal Resources. (== resource_for v1.globalOperations ==) (== resource_for beta.globalOperations ==) (== resource_for v1.regionOperations ==) (== resource_for beta.regionOperations ==) (== resource_for v1.zoneOperations ==) (== resource_for beta.zoneOperations ==)
+      # For more information, read  Global, Regional, and Zonal Resources. (== resource_for {$api_version}.globalOperations ==) (== resource_for {$api_version}.regionOperations ==) (== resource_for {$api_version}.zoneOperations ==)
     "targetId": "A String", # [Output Only] The unique target ID, which identifies a specific incarnation of the target resource.
     "clientOperationId": "A String", # [Output Only] The value of `requestId` if you provided it in the request. Not present otherwise.
     "creationTimestamp": "A String", # [Deprecated] This field is deprecated.
-    "id": "A String", # [Output Only] The unique identifier for the resource. This identifier is defined by the server.
+    "id": "A String", # [Output Only] The unique identifier for the operation. This identifier is defined by the server.
     "zone": "A String", # [Output Only] The URL of the zone where the operation resides. Only applicable when performing per-zone operations.
     "insertTime": "A String", # [Output Only] The time that this operation was requested. This value is in RFC3339 text format.
-    "operationType": "A String", # [Output Only] The type of operation, such as insert, update, or delete, and so on.
-    "httpErrorMessage": "A String", # [Output Only] If the operation fails, this field contains the HTTP error message that was returned, such as NOT FOUND.
+    "operationType": "A String", # [Output Only] The type of operation, such as `insert`, `update`, or `delete`, and so on.
+    "httpErrorMessage": "A String", # [Output Only] If the operation fails, this field contains the HTTP error message that was returned, such as `NOT FOUND`.
     "progress": 42, # [Output Only] An optional progress indicator that ranges from 0 to 100. There is no requirement that this be linear or support any granularity of operations. This should not be used to guess when the operation will be complete. This number should monotonically increase as the operation progresses.
-    "httpErrorStatusCode": 42, # [Output Only] If the operation fails, this field contains the HTTP error status code that was returned. For example, a 404 means the resource was not found.
+    "httpErrorStatusCode": 42, # [Output Only] If the operation fails, this field contains the HTTP error status code that was returned. For example, a `404` means the resource was not found.
     "statusMessage": "A String", # [Output Only] An optional textual description of the current status of the operation.
-    "status": "A String", # [Output Only] The status of the operation, which can be one of the following: PENDING, RUNNING, or DONE.
+    "status": "A String", # [Output Only] The status of the operation, which can be one of the following: `PENDING`, `RUNNING`, or `DONE`.
     "description": "A String", # [Output Only] A textual description of the operation, which is set when the operation is created.
     "warnings": [ # [Output Only] If warning messages are generated during processing of the operation, this field will be populated.
       {
@@ -146,10 +150,10 @@
       },
     ],
     "selfLinkWithId": "A String", # [Output Only] Server-defined URL for this resource with the resource id.
-    "user": "A String", # [Output Only] User who requested the operation, for example: user@example.com.
+    "user": "A String", # [Output Only] User who requested the operation, for example: `user@example.com`.
     "startTime": "A String", # [Output Only] The time that this operation was started by the server. This value is in RFC3339 text format.
-    "kind": "compute#operation", # [Output Only] Type of the resource. Always compute#operation for Operation resources.
-    "name": "A String", # [Output Only] Name of the resource.
+    "kind": "compute#operation", # [Output Only] Type of the resource. Always `compute#operation` for Operation resources.
+    "name": "A String", # [Output Only] Name of the operation.
     "region": "A String", # [Output Only] The URL of the region where the operation resides. Only applicable when performing regional operations.
     "error": { # [Output Only] If errors are generated during processing of the operation, this field will be populated.
       "errors": [ # [Output Only] The array of errors encountered while processing this operation.
@@ -179,7 +183,7 @@
 
     { # Represents a Route resource.
       #
-      # A route defines a path from VM instances in the VPC network to a specific destination. This destination can be inside or outside the VPC network. For more information, read the Routes overview. (== resource_for beta.routes ==) (== resource_for v1.routes ==)
+      # A route defines a path from VM instances in the VPC network to a specific destination. This destination can be inside or outside the VPC network. For more information, read the Routes overview. (== resource_for {$api_version}.routes ==)
     "nextHopGateway": "A String", # The URL to a gateway that should handle matching packets. You can only specify the internet gateway using a full or partial valid URL:  projects/project/global/gateways/default-internet-gateway
     "nextHopVpnTunnel": "A String", # The URL to a VpnTunnel that should handle matching packets.
     "kind": "compute#route", # [Output Only] Type of this resource. Always compute#routes for Route resources.
@@ -189,7 +193,7 @@
     ],
     "nextHopIlb": "A String", # The URL to a forwarding rule of type loadBalancingScheme=INTERNAL that should handle matching packets. You can only specify the forwarding rule as a partial or full URL. For example, the following are all valid URLs:
         # - https://www.googleapis.com/compute/v1/projects/project/regions/region/forwardingRules/forwardingRule
-        # - regions/region/forwardingRules/forwardingRule  Note that this can only be used when the destination_range is a public (non-RFC 1918) IP CIDR range.
+        # - regions/region/forwardingRules/forwardingRule
     "nextHopInstance": "A String", # The URL to an instance that should handle matching packets. You can specify this as a full or partial URL. For example:
         # https://www.googleapis.com/compute/v1/projects/project/zones/zone/instances/
     "priority": 42, # The priority of this route. Priority is used to break ties in cases where there is more than one matching route of equal prefix length. In cases where multiple routes have equal prefix length, the one with the lowest-numbered priority value wins. The default value is `1000`. The priority value must be from `0` to `65535`, inclusive.
@@ -221,17 +225,17 @@
 </div>
 
 <div class="method">
-    <code class="details" id="insert">insert(project, body, requestId=None)</code>
+    <code class="details" id="insert">insert(project, body=None, requestId=None)</code>
   <pre>Creates a Route resource in the specified project using the data included in the request.
 
 Args:
   project: string, Project ID for this request. (required)
-  body: object, The request body. (required)
+  body: object, The request body.
     The object takes the form of:
 
 { # Represents a Route resource.
     # 
-    # A route defines a path from VM instances in the VPC network to a specific destination. This destination can be inside or outside the VPC network. For more information, read the Routes overview. (== resource_for beta.routes ==) (== resource_for v1.routes ==)
+    # A route defines a path from VM instances in the VPC network to a specific destination. This destination can be inside or outside the VPC network. For more information, read the Routes overview. (== resource_for {$api_version}.routes ==)
   "nextHopGateway": "A String", # The URL to a gateway that should handle matching packets. You can only specify the internet gateway using a full or partial valid URL:  projects/project/global/gateways/default-internet-gateway
   "nextHopVpnTunnel": "A String", # The URL to a VpnTunnel that should handle matching packets.
   "kind": "compute#route", # [Output Only] Type of this resource. Always compute#routes for Route resources.
@@ -241,7 +245,7 @@
   ],
   "nextHopIlb": "A String", # The URL to a forwarding rule of type loadBalancingScheme=INTERNAL that should handle matching packets. You can only specify the forwarding rule as a partial or full URL. For example, the following are all valid URLs:
       # - https://www.googleapis.com/compute/v1/projects/project/regions/region/forwardingRules/forwardingRule
-      # - regions/region/forwardingRules/forwardingRule  Note that this can only be used when the destination_range is a public (non-RFC 1918) IP CIDR range.
+      # - regions/region/forwardingRules/forwardingRule
   "nextHopInstance": "A String", # The URL to an instance that should handle matching packets. You can specify this as a full or partial URL. For example:
       # https://www.googleapis.com/compute/v1/projects/project/zones/zone/instances/
   "priority": 42, # The priority of this route. Priority is used to break ties in cases where there is more than one matching route of equal prefix length. In cases where multiple routes have equal prefix length, the one with the lowest-numbered priority value wins. The default value is `1000`. The priority value must be from `0` to `65535`, inclusive.
@@ -282,26 +286,30 @@
 
     { # Represents an Operation resource.
       #
+      # Google Compute Engine has three Operation resources:
+      #
+      # * [Global](/compute/docs/reference/rest/{$api_version}/globalOperations) * [Regional](/compute/docs/reference/rest/{$api_version}/regionOperations) * [Zonal](/compute/docs/reference/rest/{$api_version}/zoneOperations)
+      #
       # You can use an operation resource to manage asynchronous API requests. For more information, read Handling API responses.
       #
       # Operations can be global, regional or zonal.
-      # - For global operations, use the globalOperations resource.
-      # - For regional operations, use the regionOperations resource.
-      # - For zonal operations, use the zonalOperations resource.
+      # - For global operations, use the `globalOperations` resource.
+      # - For regional operations, use the `regionOperations` resource.
+      # - For zonal operations, use the `zonalOperations` resource.
       #
-      # For more information, read  Global, Regional, and Zonal Resources. (== resource_for v1.globalOperations ==) (== resource_for beta.globalOperations ==) (== resource_for v1.regionOperations ==) (== resource_for beta.regionOperations ==) (== resource_for v1.zoneOperations ==) (== resource_for beta.zoneOperations ==)
+      # For more information, read  Global, Regional, and Zonal Resources. (== resource_for {$api_version}.globalOperations ==) (== resource_for {$api_version}.regionOperations ==) (== resource_for {$api_version}.zoneOperations ==)
     "targetId": "A String", # [Output Only] The unique target ID, which identifies a specific incarnation of the target resource.
     "clientOperationId": "A String", # [Output Only] The value of `requestId` if you provided it in the request. Not present otherwise.
     "creationTimestamp": "A String", # [Deprecated] This field is deprecated.
-    "id": "A String", # [Output Only] The unique identifier for the resource. This identifier is defined by the server.
+    "id": "A String", # [Output Only] The unique identifier for the operation. This identifier is defined by the server.
     "zone": "A String", # [Output Only] The URL of the zone where the operation resides. Only applicable when performing per-zone operations.
     "insertTime": "A String", # [Output Only] The time that this operation was requested. This value is in RFC3339 text format.
-    "operationType": "A String", # [Output Only] The type of operation, such as insert, update, or delete, and so on.
-    "httpErrorMessage": "A String", # [Output Only] If the operation fails, this field contains the HTTP error message that was returned, such as NOT FOUND.
+    "operationType": "A String", # [Output Only] The type of operation, such as `insert`, `update`, or `delete`, and so on.
+    "httpErrorMessage": "A String", # [Output Only] If the operation fails, this field contains the HTTP error message that was returned, such as `NOT FOUND`.
     "progress": 42, # [Output Only] An optional progress indicator that ranges from 0 to 100. There is no requirement that this be linear or support any granularity of operations. This should not be used to guess when the operation will be complete. This number should monotonically increase as the operation progresses.
-    "httpErrorStatusCode": 42, # [Output Only] If the operation fails, this field contains the HTTP error status code that was returned. For example, a 404 means the resource was not found.
+    "httpErrorStatusCode": 42, # [Output Only] If the operation fails, this field contains the HTTP error status code that was returned. For example, a `404` means the resource was not found.
     "statusMessage": "A String", # [Output Only] An optional textual description of the current status of the operation.
-    "status": "A String", # [Output Only] The status of the operation, which can be one of the following: PENDING, RUNNING, or DONE.
+    "status": "A String", # [Output Only] The status of the operation, which can be one of the following: `PENDING`, `RUNNING`, or `DONE`.
     "description": "A String", # [Output Only] A textual description of the operation, which is set when the operation is created.
     "warnings": [ # [Output Only] If warning messages are generated during processing of the operation, this field will be populated.
       {
@@ -317,10 +325,10 @@
       },
     ],
     "selfLinkWithId": "A String", # [Output Only] Server-defined URL for this resource with the resource id.
-    "user": "A String", # [Output Only] User who requested the operation, for example: user@example.com.
+    "user": "A String", # [Output Only] User who requested the operation, for example: `user@example.com`.
     "startTime": "A String", # [Output Only] The time that this operation was started by the server. This value is in RFC3339 text format.
-    "kind": "compute#operation", # [Output Only] Type of the resource. Always compute#operation for Operation resources.
-    "name": "A String", # [Output Only] Name of the resource.
+    "kind": "compute#operation", # [Output Only] Type of the resource. Always `compute#operation` for Operation resources.
+    "name": "A String", # [Output Only] Name of the operation.
     "region": "A String", # [Output Only] The URL of the region where the operation resides. Only applicable when performing regional operations.
     "error": { # [Output Only] If errors are generated during processing of the operation, this field will be populated.
       "errors": [ # [Output Only] The array of errors encountered while processing this operation.
@@ -338,25 +346,26 @@
 </div>
 
 <div class="method">
-    <code class="details" id="list">list(project, orderBy=None, maxResults=None, pageToken=None, filter=None)</code>
+    <code class="details" id="list">list(project, orderBy=None, maxResults=None, pageToken=None, returnPartialSuccess=None, filter=None)</code>
   <pre>Retrieves the list of Route resources available to the specified project.
 
 Args:
   project: string, Project ID for this request. (required)
   orderBy: string, Sorts list results by a certain order. By default, results are returned in alphanumerical order based on the resource name.
 
-You can also sort results in descending order based on the creation timestamp using orderBy="creationTimestamp desc". This sorts results based on the creationTimestamp field in reverse chronological order (newest result first). Use this to sort resources like operations so that the newest operation is returned first.
+You can also sort results in descending order based on the creation timestamp using `orderBy="creationTimestamp desc"`. This sorts results based on the `creationTimestamp` field in reverse chronological order (newest result first). Use this to sort resources like operations so that the newest operation is returned first.
 
-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 <.
+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.
+  returnPartialSuccess: boolean, Opt-in for partial success behavior which provides partial results in case of failure. The default value is false and the logic is the same as today.
+  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.
+For example, if you are filtering Compute Engine instances, you can exclude instances named `example-instance` by specifying `name != example-instance`.
 
-You can also filter nested fields. For example, you could specify scheduling.automaticRestart = false to include instances only if they are not scheduled for automatic restarts. You can use filtering on nested fields to filter based on resource labels.
+You can also filter nested fields. For example, you could specify `scheduling.automaticRestart = false` to include instances only if they are not scheduled for automatic restarts. You can use filtering on nested fields to filter based on resource labels.
 
-To filter on multiple expressions, provide each separate expression within parentheses. For example, (scheduling.automaticRestart = true) (cpuPlatform = "Intel Skylake"). By default, each expression is an AND expression. However, you can include AND and OR expressions explicitly. For example, (cpuPlatform = "Intel Skylake") OR (cpuPlatform = "Intel Broadwell") AND (scheduling.automaticRestart = true).
+To filter on multiple expressions, provide each separate expression within parentheses. For example: ``` (scheduling.automaticRestart = true) (cpuPlatform = "Intel Skylake") ``` By default, each expression is an `AND` expression. However, you can include `AND` and `OR` expressions explicitly. For example: ``` (cpuPlatform = "Intel Skylake") OR (cpuPlatform = "Intel Broadwell") AND (scheduling.automaticRestart = true) ```
 
 Returns:
   An object of the form:
@@ -367,7 +376,7 @@
     "items": [ # A list of Route resources.
       { # Represents a Route resource.
           #
-          # A route defines a path from VM instances in the VPC network to a specific destination. This destination can be inside or outside the VPC network. For more information, read the Routes overview. (== resource_for beta.routes ==) (== resource_for v1.routes ==)
+          # A route defines a path from VM instances in the VPC network to a specific destination. This destination can be inside or outside the VPC network. For more information, read the Routes overview. (== resource_for {$api_version}.routes ==)
         "nextHopGateway": "A String", # The URL to a gateway that should handle matching packets. You can only specify the internet gateway using a full or partial valid URL:  projects/project/global/gateways/default-internet-gateway
         "nextHopVpnTunnel": "A String", # The URL to a VpnTunnel that should handle matching packets.
         "kind": "compute#route", # [Output Only] Type of this resource. Always compute#routes for Route resources.
@@ -377,7 +386,7 @@
         ],
         "nextHopIlb": "A String", # The URL to a forwarding rule of type loadBalancingScheme=INTERNAL that should handle matching packets. You can only specify the forwarding rule as a partial or full URL. For example, the following are all valid URLs:
             # - https://www.googleapis.com/compute/v1/projects/project/regions/region/forwardingRules/forwardingRule
-            # - regions/region/forwardingRules/forwardingRule  Note that this can only be used when the destination_range is a public (non-RFC 1918) IP CIDR range.
+            # - regions/region/forwardingRules/forwardingRule
         "nextHopInstance": "A String", # The URL to an instance that should handle matching packets. You can specify this as a full or partial URL. For example:
             # https://www.googleapis.com/compute/v1/projects/project/zones/zone/instances/
         "priority": 42, # The priority of this route. Priority is used to break ties in cases where there is more than one matching route of equal prefix length. In cases where multiple routes have equal prefix length, the one with the lowest-numbered priority value wins. The default value is `1000`. The priority value must be from `0` to `65535`, inclusive.
@@ -438,13 +447,13 @@
 </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:
 
 {