# Class TpuStub (2.94.0)

2.94.0 (latest) 2.92.0 2.89.0 2.88.0 2.86.0 2.84.0 2.83.0 2.81.0 2.79.0 2.77.0 2.76.0 2.75.0 2.74.0 2.73.0 2.71.0 2.69.0 2.68.0 2.65.0 2.64.0 2.63.0 2.61.0 2.60.0 2.59.0 2.58.0 2.57.0 2.56.0 2.55.0 2.54.0 2.53.0 2.52.0 2.50.0 2.49.0 2.48.0 2.47.0 2.46.0 2.45.0 2.44.0 2.43.0 2.42.0 2.41.0 2.40.0 2.38.0 2.37.0 2.36.0 2.35.0 2.34.0 2.33.0 2.32.0 2.31.0 2.30.0 2.29.0 2.28.0 2.25.0 2.24.0 2.23.0 2.22.0 2.21.0 2.20.0 2.19.0 2.18.0 2.17.0 2.16.0 2.15.0 2.14.0 2.13.0 2.12.0 2.10.0 2.9.0 2.8.0 2.7.0 2.6.0 2.5.0 2.2.6

    public abstract class TpuStub implements BackgroundResource

Base stub class for the Tpu service API.

This class is for advanced usage and reflects the underlying API directly.

## Inheritance

[java.lang.Object](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html) \> TpuStub

## Implements

[BackgroundResource](https://docs.cloud.google.com/java/docs/reference/gax/latest/com.google.api.gax.core.BackgroundResource.html)

## Inherited Members

[Object.clone()](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#clone--) [Object.equals(Object)](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#equals-java.lang.Object-) [Object.finalize()](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#finalize--) [Object.getClass()](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#getClass--) [Object.hashCode()](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#hashCode--) [Object.notify()](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#notify--) [Object.notifyAll()](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#notifyAll--) [Object.toString()](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#toString--) [Object.wait()](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#wait--) [Object.wait(long)](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#wait-long-) [Object.wait(long,int)](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#wait-long-int-)

## Constructors

### TpuStub()

    public TpuStub()

## Methods

### close()

    public abstract void close()

### createNodeCallable()

    public UnaryCallable<CreateNodeRequest,Operation> createNodeCallable()

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.cloud.google.com/java/docs/reference/gax/latest/com.google.api.gax.rpc.UnaryCallable.html<https://docs.cloud.google.com/java/docs/reference/google-cloud-tpu/latest/com.google.cloud.tpu.v2.CreateNodeRequest,https://docs.cloud.google.com/java/docs/reference/gax/latest/com.google.longrunning.Operation.html>` |   |

### createNodeOperationCallable()

    public OperationCallable<CreateNodeRequest,Node,OperationMetadata> createNodeOperationCallable()

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.cloud.google.com/java/docs/reference/gax/latest/com.google.api.gax.rpc.OperationCallable.html<https://docs.cloud.google.com/java/docs/reference/google-cloud-tpu/latest/com.google.cloud.tpu.v2.CreateNodeRequest,https://docs.cloud.google.com/java/docs/reference/google-cloud-tpu/latest/com.google.cloud.tpu.v2.Node,https://docs.cloud.google.com/java/docs/reference/google-cloud-tpu/latest/com.google.cloud.tpu.v2.OperationMetadata>` |   |

### createQueuedResourceCallable()

    public UnaryCallable<CreateQueuedResourceRequest,Operation> createQueuedResourceCallable()

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.cloud.google.com/java/docs/reference/gax/latest/com.google.api.gax.rpc.UnaryCallable.html<https://docs.cloud.google.com/java/docs/reference/google-cloud-tpu/latest/com.google.cloud.tpu.v2.CreateQueuedResourceRequest,https://docs.cloud.google.com/java/docs/reference/gax/latest/com.google.longrunning.Operation.html>` |   |

### createQueuedResourceOperationCallable()

    public OperationCallable<CreateQueuedResourceRequest,QueuedResource,OperationMetadata> createQueuedResourceOperationCallable()

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.cloud.google.com/java/docs/reference/gax/latest/com.google.api.gax.rpc.OperationCallable.html<https://docs.cloud.google.com/java/docs/reference/google-cloud-tpu/latest/com.google.cloud.tpu.v2.CreateQueuedResourceRequest,https://docs.cloud.google.com/java/docs/reference/google-cloud-tpu/latest/com.google.cloud.tpu.v2.QueuedResource,https://docs.cloud.google.com/java/docs/reference/google-cloud-tpu/latest/com.google.cloud.tpu.v2.OperationMetadata>` |   |

### deleteNodeCallable()

    public UnaryCallable<DeleteNodeRequest,Operation> deleteNodeCallable()

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.cloud.google.com/java/docs/reference/gax/latest/com.google.api.gax.rpc.UnaryCallable.html<https://docs.cloud.google.com/java/docs/reference/google-cloud-tpu/latest/com.google.cloud.tpu.v2.DeleteNodeRequest,https://docs.cloud.google.com/java/docs/reference/gax/latest/com.google.longrunning.Operation.html>` |   |

### deleteNodeOperationCallable()

    public OperationCallable<DeleteNodeRequest,Empty,OperationMetadata> deleteNodeOperationCallable()

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.cloud.google.com/java/docs/reference/gax/latest/com.google.api.gax.rpc.OperationCallable.html<https://docs.cloud.google.com/java/docs/reference/google-cloud-tpu/latest/com.google.cloud.tpu.v2.DeleteNodeRequest,https://cloud.google.com/java/docs/reference/protobuf/latest/com.google.protobuf.Empty.html,https://docs.cloud.google.com/java/docs/reference/google-cloud-tpu/latest/com.google.cloud.tpu.v2.OperationMetadata>` |   |

### deleteQueuedResourceCallable()

    public UnaryCallable<DeleteQueuedResourceRequest,Operation> deleteQueuedResourceCallable()

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.cloud.google.com/java/docs/reference/gax/latest/com.google.api.gax.rpc.UnaryCallable.html<https://docs.cloud.google.com/java/docs/reference/google-cloud-tpu/latest/com.google.cloud.tpu.v2.DeleteQueuedResourceRequest,https://docs.cloud.google.com/java/docs/reference/gax/latest/com.google.longrunning.Operation.html>` |   |

### deleteQueuedResourceOperationCallable()

    public OperationCallable<DeleteQueuedResourceRequest,Empty,OperationMetadata> deleteQueuedResourceOperationCallable()

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.cloud.google.com/java/docs/reference/gax/latest/com.google.api.gax.rpc.OperationCallable.html<https://docs.cloud.google.com/java/docs/reference/google-cloud-tpu/latest/com.google.cloud.tpu.v2.DeleteQueuedResourceRequest,https://cloud.google.com/java/docs/reference/protobuf/latest/com.google.protobuf.Empty.html,https://docs.cloud.google.com/java/docs/reference/google-cloud-tpu/latest/com.google.cloud.tpu.v2.OperationMetadata>` |   |

### generateServiceIdentityCallable()

    public UnaryCallable<GenerateServiceIdentityRequest,GenerateServiceIdentityResponse> generateServiceIdentityCallable()

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.cloud.google.com/java/docs/reference/gax/latest/com.google.api.gax.rpc.UnaryCallable.html<https://docs.cloud.google.com/java/docs/reference/google-cloud-tpu/latest/com.google.cloud.tpu.v2.GenerateServiceIdentityRequest,https://docs.cloud.google.com/java/docs/reference/google-cloud-tpu/latest/com.google.cloud.tpu.v2.GenerateServiceIdentityResponse>` |   |

### getAcceleratorTypeCallable()

    public UnaryCallable<GetAcceleratorTypeRequest,AcceleratorType> getAcceleratorTypeCallable()

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.cloud.google.com/java/docs/reference/gax/latest/com.google.api.gax.rpc.UnaryCallable.html<https://docs.cloud.google.com/java/docs/reference/google-cloud-tpu/latest/com.google.cloud.tpu.v2.GetAcceleratorTypeRequest,https://docs.cloud.google.com/java/docs/reference/google-cloud-tpu/latest/com.google.cloud.tpu.v2.AcceleratorType>` |   |

### getGuestAttributesCallable()

    public UnaryCallable<GetGuestAttributesRequest,GetGuestAttributesResponse> getGuestAttributesCallable()

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.cloud.google.com/java/docs/reference/gax/latest/com.google.api.gax.rpc.UnaryCallable.html<https://docs.cloud.google.com/java/docs/reference/google-cloud-tpu/latest/com.google.cloud.tpu.v2.GetGuestAttributesRequest,https://docs.cloud.google.com/java/docs/reference/google-cloud-tpu/latest/com.google.cloud.tpu.v2.GetGuestAttributesResponse>` |   |

### getHttpJsonOperationsStub()

    public OperationsStub getHttpJsonOperationsStub()

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.cloud.google.com/java/docs/reference/gax/latest/com.google.api.gax.httpjson.longrunning.stub.OperationsStub.html` |   |

### getLocationCallable()

    public UnaryCallable<GetLocationRequest,Location> getLocationCallable()

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.cloud.google.com/java/docs/reference/gax/latest/com.google.api.gax.rpc.UnaryCallable.html<com.google.cloud.location.GetLocationRequest,com.google.cloud.location.Location>` |   |

### getNodeCallable()

    public UnaryCallable<GetNodeRequest,Node> getNodeCallable()

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.cloud.google.com/java/docs/reference/gax/latest/com.google.api.gax.rpc.UnaryCallable.html<https://docs.cloud.google.com/java/docs/reference/google-cloud-tpu/latest/com.google.cloud.tpu.v2.GetNodeRequest,https://docs.cloud.google.com/java/docs/reference/google-cloud-tpu/latest/com.google.cloud.tpu.v2.Node>` |   |

### getOperationsStub()

    public OperationsStub getOperationsStub()

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.cloud.google.com/java/docs/reference/gax/latest/com.google.longrunning.stub.OperationsStub.html` |   |

### getQueuedResourceCallable()

    public UnaryCallable<GetQueuedResourceRequest,QueuedResource> getQueuedResourceCallable()

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.cloud.google.com/java/docs/reference/gax/latest/com.google.api.gax.rpc.UnaryCallable.html<https://docs.cloud.google.com/java/docs/reference/google-cloud-tpu/latest/com.google.cloud.tpu.v2.GetQueuedResourceRequest,https://docs.cloud.google.com/java/docs/reference/google-cloud-tpu/latest/com.google.cloud.tpu.v2.QueuedResource>` |   |

### getRuntimeVersionCallable()

    public UnaryCallable<GetRuntimeVersionRequest,RuntimeVersion> getRuntimeVersionCallable()

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.cloud.google.com/java/docs/reference/gax/latest/com.google.api.gax.rpc.UnaryCallable.html<https://docs.cloud.google.com/java/docs/reference/google-cloud-tpu/latest/com.google.cloud.tpu.v2.GetRuntimeVersionRequest,https://docs.cloud.google.com/java/docs/reference/google-cloud-tpu/latest/com.google.cloud.tpu.v2.RuntimeVersion>` |   |

### listAcceleratorTypesCallable()

    public UnaryCallable<ListAcceleratorTypesRequest,ListAcceleratorTypesResponse> listAcceleratorTypesCallable()

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.cloud.google.com/java/docs/reference/gax/latest/com.google.api.gax.rpc.UnaryCallable.html<https://docs.cloud.google.com/java/docs/reference/google-cloud-tpu/latest/com.google.cloud.tpu.v2.ListAcceleratorTypesRequest,https://docs.cloud.google.com/java/docs/reference/google-cloud-tpu/latest/com.google.cloud.tpu.v2.ListAcceleratorTypesResponse>` |   |

### listAcceleratorTypesPagedCallable()

    public UnaryCallable<ListAcceleratorTypesRequest,TpuClient.ListAcceleratorTypesPagedResponse> listAcceleratorTypesPagedCallable()

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.cloud.google.com/java/docs/reference/gax/latest/com.google.api.gax.rpc.UnaryCallable.html<https://docs.cloud.google.com/java/docs/reference/google-cloud-tpu/latest/com.google.cloud.tpu.v2.ListAcceleratorTypesRequest,https://docs.cloud.google.com/java/docs/reference/google-cloud-tpu/latest/com.google.cloud.tpu.v2.TpuClient.ListAcceleratorTypesPagedResponse>` |   |

### listLocationsCallable()

    public UnaryCallable<ListLocationsRequest,ListLocationsResponse> listLocationsCallable()

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.cloud.google.com/java/docs/reference/gax/latest/com.google.api.gax.rpc.UnaryCallable.html<com.google.cloud.location.ListLocationsRequest,com.google.cloud.location.ListLocationsResponse>` |   |

### listLocationsPagedCallable()

    public UnaryCallable<ListLocationsRequest,TpuClient.ListLocationsPagedResponse> listLocationsPagedCallable()

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.cloud.google.com/java/docs/reference/gax/latest/com.google.api.gax.rpc.UnaryCallable.html<com.google.cloud.location.ListLocationsRequest,https://docs.cloud.google.com/java/docs/reference/google-cloud-tpu/latest/com.google.cloud.tpu.v2.TpuClient.ListLocationsPagedResponse>` |   |

### listNodesCallable()

    public UnaryCallable<ListNodesRequest,ListNodesResponse> listNodesCallable()

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.cloud.google.com/java/docs/reference/gax/latest/com.google.api.gax.rpc.UnaryCallable.html<https://docs.cloud.google.com/java/docs/reference/google-cloud-tpu/latest/com.google.cloud.tpu.v2.ListNodesRequest,https://docs.cloud.google.com/java/docs/reference/google-cloud-tpu/latest/com.google.cloud.tpu.v2.ListNodesResponse>` |   |

### listNodesPagedCallable()

    public UnaryCallable<ListNodesRequest,TpuClient.ListNodesPagedResponse> listNodesPagedCallable()

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.cloud.google.com/java/docs/reference/gax/latest/com.google.api.gax.rpc.UnaryCallable.html<https://docs.cloud.google.com/java/docs/reference/google-cloud-tpu/latest/com.google.cloud.tpu.v2.ListNodesRequest,https://docs.cloud.google.com/java/docs/reference/google-cloud-tpu/latest/com.google.cloud.tpu.v2.TpuClient.ListNodesPagedResponse>` |   |

### listQueuedResourcesCallable()

    public UnaryCallable<ListQueuedResourcesRequest,ListQueuedResourcesResponse> listQueuedResourcesCallable()

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.cloud.google.com/java/docs/reference/gax/latest/com.google.api.gax.rpc.UnaryCallable.html<https://docs.cloud.google.com/java/docs/reference/google-cloud-tpu/latest/com.google.cloud.tpu.v2.ListQueuedResourcesRequest,https://docs.cloud.google.com/java/docs/reference/google-cloud-tpu/latest/com.google.cloud.tpu.v2.ListQueuedResourcesResponse>` |   |

### listQueuedResourcesPagedCallable()

    public UnaryCallable<ListQueuedResourcesRequest,TpuClient.ListQueuedResourcesPagedResponse> listQueuedResourcesPagedCallable()

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.cloud.google.com/java/docs/reference/gax/latest/com.google.api.gax.rpc.UnaryCallable.html<https://docs.cloud.google.com/java/docs/reference/google-cloud-tpu/latest/com.google.cloud.tpu.v2.ListQueuedResourcesRequest,https://docs.cloud.google.com/java/docs/reference/google-cloud-tpu/latest/com.google.cloud.tpu.v2.TpuClient.ListQueuedResourcesPagedResponse>` |   |

### listRuntimeVersionsCallable()

    public UnaryCallable<ListRuntimeVersionsRequest,ListRuntimeVersionsResponse> listRuntimeVersionsCallable()

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.cloud.google.com/java/docs/reference/gax/latest/com.google.api.gax.rpc.UnaryCallable.html<https://docs.cloud.google.com/java/docs/reference/google-cloud-tpu/latest/com.google.cloud.tpu.v2.ListRuntimeVersionsRequest,https://docs.cloud.google.com/java/docs/reference/google-cloud-tpu/latest/com.google.cloud.tpu.v2.ListRuntimeVersionsResponse>` |   |

### listRuntimeVersionsPagedCallable()

    public UnaryCallable<ListRuntimeVersionsRequest,TpuClient.ListRuntimeVersionsPagedResponse> listRuntimeVersionsPagedCallable()

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.cloud.google.com/java/docs/reference/gax/latest/com.google.api.gax.rpc.UnaryCallable.html<https://docs.cloud.google.com/java/docs/reference/google-cloud-tpu/latest/com.google.cloud.tpu.v2.ListRuntimeVersionsRequest,https://docs.cloud.google.com/java/docs/reference/google-cloud-tpu/latest/com.google.cloud.tpu.v2.TpuClient.ListRuntimeVersionsPagedResponse>` |   |

### resetQueuedResourceCallable()

    public UnaryCallable<ResetQueuedResourceRequest,Operation> resetQueuedResourceCallable()

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.cloud.google.com/java/docs/reference/gax/latest/com.google.api.gax.rpc.UnaryCallable.html<https://docs.cloud.google.com/java/docs/reference/google-cloud-tpu/latest/com.google.cloud.tpu.v2.ResetQueuedResourceRequest,https://docs.cloud.google.com/java/docs/reference/gax/latest/com.google.longrunning.Operation.html>` |   |

### resetQueuedResourceOperationCallable()

    public OperationCallable<ResetQueuedResourceRequest,QueuedResource,OperationMetadata> resetQueuedResourceOperationCallable()

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.cloud.google.com/java/docs/reference/gax/latest/com.google.api.gax.rpc.OperationCallable.html<https://docs.cloud.google.com/java/docs/reference/google-cloud-tpu/latest/com.google.cloud.tpu.v2.ResetQueuedResourceRequest,https://docs.cloud.google.com/java/docs/reference/google-cloud-tpu/latest/com.google.cloud.tpu.v2.QueuedResource,https://docs.cloud.google.com/java/docs/reference/google-cloud-tpu/latest/com.google.cloud.tpu.v2.OperationMetadata>` |   |

### startNodeCallable()

    public UnaryCallable<StartNodeRequest,Operation> startNodeCallable()

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.cloud.google.com/java/docs/reference/gax/latest/com.google.api.gax.rpc.UnaryCallable.html<https://docs.cloud.google.com/java/docs/reference/google-cloud-tpu/latest/com.google.cloud.tpu.v2.StartNodeRequest,https://docs.cloud.google.com/java/docs/reference/gax/latest/com.google.longrunning.Operation.html>` |   |

### startNodeOperationCallable()

    public OperationCallable<StartNodeRequest,Node,OperationMetadata> startNodeOperationCallable()

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.cloud.google.com/java/docs/reference/gax/latest/com.google.api.gax.rpc.OperationCallable.html<https://docs.cloud.google.com/java/docs/reference/google-cloud-tpu/latest/com.google.cloud.tpu.v2.StartNodeRequest,https://docs.cloud.google.com/java/docs/reference/google-cloud-tpu/latest/com.google.cloud.tpu.v2.Node,https://docs.cloud.google.com/java/docs/reference/google-cloud-tpu/latest/com.google.cloud.tpu.v2.OperationMetadata>` |   |

### stopNodeCallable()

    public UnaryCallable<StopNodeRequest,Operation> stopNodeCallable()

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.cloud.google.com/java/docs/reference/gax/latest/com.google.api.gax.rpc.UnaryCallable.html<https://docs.cloud.google.com/java/docs/reference/google-cloud-tpu/latest/com.google.cloud.tpu.v2.StopNodeRequest,https://docs.cloud.google.com/java/docs/reference/gax/latest/com.google.longrunning.Operation.html>` |   |

### stopNodeOperationCallable()

    public OperationCallable<StopNodeRequest,Node,OperationMetadata> stopNodeOperationCallable()

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.cloud.google.com/java/docs/reference/gax/latest/com.google.api.gax.rpc.OperationCallable.html<https://docs.cloud.google.com/java/docs/reference/google-cloud-tpu/latest/com.google.cloud.tpu.v2.StopNodeRequest,https://docs.cloud.google.com/java/docs/reference/google-cloud-tpu/latest/com.google.cloud.tpu.v2.Node,https://docs.cloud.google.com/java/docs/reference/google-cloud-tpu/latest/com.google.cloud.tpu.v2.OperationMetadata>` |   |

### updateNodeCallable()

    public UnaryCallable<UpdateNodeRequest,Operation> updateNodeCallable()

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.cloud.google.com/java/docs/reference/gax/latest/com.google.api.gax.rpc.UnaryCallable.html<https://docs.cloud.google.com/java/docs/reference/google-cloud-tpu/latest/com.google.cloud.tpu.v2.UpdateNodeRequest,https://docs.cloud.google.com/java/docs/reference/gax/latest/com.google.longrunning.Operation.html>` |   |

### updateNodeOperationCallable()

    public OperationCallable<UpdateNodeRequest,Node,OperationMetadata> updateNodeOperationCallable()

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.cloud.google.com/java/docs/reference/gax/latest/com.google.api.gax.rpc.OperationCallable.html<https://docs.cloud.google.com/java/docs/reference/google-cloud-tpu/latest/com.google.cloud.tpu.v2.UpdateNodeRequest,https://docs.cloud.google.com/java/docs/reference/google-cloud-tpu/latest/com.google.cloud.tpu.v2.Node,https://docs.cloud.google.com/java/docs/reference/google-cloud-tpu/latest/com.google.cloud.tpu.v2.OperationMetadata>` |   |