diff --git a/docs/dyn/tpu_v1alpha1.projects.locations.nodes.html b/docs/dyn/tpu_v1alpha1.projects.locations.nodes.html
index d61b1056668..b66e58cb624 100644
--- a/docs/dyn/tpu_v1alpha1.projects.locations.nodes.html
+++ b/docs/dyn/tpu_v1alpha1.projects.locations.nodes.html
@@ -78,10 +78,10 @@ <h2>Instance Methods</h2>
   <code><a href="#close">close()</a></code></p>
 <p class="firstline">Close httplib2 connections.</p>
 <p class="toc_element">
-  <code><a href="#create">create(parent, body=None, nodeId=None, x__xgafv=None)</a></code></p>
+  <code><a href="#create">create(parent, body=None, nodeId=None, requestId=None, x__xgafv=None)</a></code></p>
 <p class="firstline">Creates a node.</p>
 <p class="toc_element">
-  <code><a href="#delete">delete(name, x__xgafv=None)</a></code></p>
+  <code><a href="#delete">delete(name, requestId=None, x__xgafv=None)</a></code></p>
 <p class="firstline">Deletes a node.</p>
 <p class="toc_element">
   <code><a href="#get">get(name, x__xgafv=None)</a></code></p>
@@ -108,7 +108,7 @@ <h3>Method Details</h3>
 </div>
 
 <div class="method">
-    <code class="details" id="create">create(parent, body=None, nodeId=None, x__xgafv=None)</code>
+    <code class="details" id="create">create(parent, body=None, nodeId=None, requestId=None, x__xgafv=None)</code>
   <pre>Creates a node.
 
 Args:
@@ -156,6 +156,7 @@ <h3>Method Details</h3>
 }
 
   nodeId: string, The unqualified resource name.
+  requestId: string, Idempotent request UUID.
   x__xgafv: string, V1 error format.
     Allowed values
       1 - v1 error format
@@ -186,11 +187,12 @@ <h3>Method Details</h3>
 </div>
 
 <div class="method">
-    <code class="details" id="delete">delete(name, x__xgafv=None)</code>
+    <code class="details" id="delete">delete(name, requestId=None, x__xgafv=None)</code>
   <pre>Deletes a node.
 
 Args:
   name: string, Required. The resource name. (required)
+  requestId: string, Idempotent request UUID.
   x__xgafv: string, V1 error format.
     Allowed values
       1 - v1 error format
diff --git a/googleapiclient/discovery_cache/documents/tpu.v1.json b/googleapiclient/discovery_cache/documents/tpu.v1.json
index 89096067a19..dae38eb4828 100644
--- a/googleapiclient/discovery_cache/documents/tpu.v1.json
+++ b/googleapiclient/discovery_cache/documents/tpu.v1.json
@@ -659,7 +659,7 @@
       }
     }
   },
-  "revision": "20210510",
+  "revision": "20210707",
   "rootUrl": "https://tpu.googleapis.com/",
   "schemas": {
     "AcceleratorType": {
@@ -1047,33 +1047,40 @@
       "id": "OperationMetadata",
       "properties": {
         "apiVersion": {
-          "description": "[Output only] API version used to start the operation.",
+          "description": "Output only. API version used to start the operation.",
+          "readOnly": true,
           "type": "string"
         },
         "cancelRequested": {
-          "description": "[Output only] Identifies whether the user has requested cancellation of the operation. Operations that have successfully been cancelled have Operation.error value with a google.rpc.Status.code of 1, corresponding to `Code.CANCELLED`.",
+          "description": "Output only. Identifies whether the user has requested cancellation of the operation. Operations that have successfully been cancelled have Operation.error value with a google.rpc.Status.code of 1, corresponding to `Code.CANCELLED`.",
+          "readOnly": true,
           "type": "boolean"
         },
         "createTime": {
-          "description": "[Output only] The time the operation was created.",
+          "description": "Output only. The time the operation was created.",
           "format": "google-datetime",
+          "readOnly": true,
           "type": "string"
         },
         "endTime": {
-          "description": "[Output only] The time the operation finished running.",
+          "description": "Output only. The time the operation finished running.",
           "format": "google-datetime",
+          "readOnly": true,
           "type": "string"
         },
         "statusDetail": {
-          "description": "[Output only] Human-readable status of the operation, if any.",
+          "description": "Output only. Human-readable status of the operation, if any.",
+          "readOnly": true,
           "type": "string"
         },
         "target": {
-          "description": "[Output only] Server-defined resource path for the target of the operation.",
+          "description": "Output only. Server-defined resource path for the target of the operation.",
+          "readOnly": true,
           "type": "string"
         },
         "verb": {
-          "description": "[Output only] Name of the verb executed by the operation.",
+          "description": "Output only. Name of the verb executed by the operation.",
+          "readOnly": true,
           "type": "string"
         }
       },
diff --git a/googleapiclient/discovery_cache/documents/tpu.v1alpha1.json b/googleapiclient/discovery_cache/documents/tpu.v1alpha1.json
index ebc66430e28..6c98b079cac 100644
--- a/googleapiclient/discovery_cache/documents/tpu.v1alpha1.json
+++ b/googleapiclient/discovery_cache/documents/tpu.v1alpha1.json
@@ -274,6 +274,11 @@
                       "pattern": "^projects/[^/]+/locations/[^/]+$",
                       "required": true,
                       "type": "string"
+                    },
+                    "requestId": {
+                      "description": "Idempotent request UUID.",
+                      "location": "query",
+                      "type": "string"
                     }
                   },
                   "path": "v1alpha1/{+parent}/nodes",
@@ -302,6 +307,11 @@
                       "pattern": "^projects/[^/]+/locations/[^/]+/nodes/[^/]+$",
                       "required": true,
                       "type": "string"
+                    },
+                    "requestId": {
+                      "description": "Idempotent request UUID.",
+                      "location": "query",
+                      "type": "string"
                     }
                   },
                   "path": "v1alpha1/{+name}",
@@ -659,7 +669,7 @@
       }
     }
   },
-  "revision": "20210510",
+  "revision": "20210707",
   "rootUrl": "https://tpu.googleapis.com/",
   "schemas": {
     "AcceleratorType": {
@@ -1047,33 +1057,40 @@
       "id": "OperationMetadata",
       "properties": {
         "apiVersion": {
-          "description": "[Output only] API version used to start the operation.",
+          "description": "Output only. API version used to start the operation.",
+          "readOnly": true,
           "type": "string"
         },
         "cancelRequested": {
-          "description": "[Output only] Identifies whether the user has requested cancellation of the operation. Operations that have successfully been cancelled have Operation.error value with a google.rpc.Status.code of 1, corresponding to `Code.CANCELLED`.",
+          "description": "Output only. Identifies whether the user has requested cancellation of the operation. Operations that have successfully been cancelled have Operation.error value with a google.rpc.Status.code of 1, corresponding to `Code.CANCELLED`.",
+          "readOnly": true,
           "type": "boolean"
         },
         "createTime": {
-          "description": "[Output only] The time the operation was created.",
+          "description": "Output only. The time the operation was created.",
           "format": "google-datetime",
+          "readOnly": true,
           "type": "string"
         },
         "endTime": {
-          "description": "[Output only] The time the operation finished running.",
+          "description": "Output only. The time the operation finished running.",
           "format": "google-datetime",
+          "readOnly": true,
           "type": "string"
         },
         "statusDetail": {
-          "description": "[Output only] Human-readable status of the operation, if any.",
+          "description": "Output only. Human-readable status of the operation, if any.",
+          "readOnly": true,
           "type": "string"
         },
         "target": {
-          "description": "[Output only] Server-defined resource path for the target of the operation.",
+          "description": "Output only. Server-defined resource path for the target of the operation.",
+          "readOnly": true,
           "type": "string"
         },
         "verb": {
-          "description": "[Output only] Name of the verb executed by the operation.",
+          "description": "Output only. Name of the verb executed by the operation.",
+          "readOnly": true,
           "type": "string"
         }
       },