Class TpuClient (2.26.0)

Manages TPU nodes and other resources.

TPU API v2

Equality

Instances of this class created via copy-construction or copy-assignment always compare equal. Instances created with equal std::shared_ptr<*Connection> objects compare equal. Objects that compare equal share the same underlying resources.

Performance

Creating a new instance of this class is a relatively expensive operation, new objects establish new connections to the service. In contrast, copy-construction, move-construction, and the corresponding assignment operations are relatively efficient as the copies share all underlying resources.

Thread Safety

Concurrent access to different instances of this class, even if they compare equal, is guaranteed to work. Two or more threads operating on the same instance of this class is not guaranteed to work. Since copy-construction and move-construction is a relatively efficient operation, consider using such a copy when using this class from multiple threads.

Constructors

TpuClient(TpuClient const &)

Copy and move support

Parameter
Name	Description
	`TpuClient const &`

TpuClient(TpuClient &&)

Copy and move support

Parameter
Name	Description
	`TpuClient &&`

TpuClient(std::shared_ptr< TpuConnection >, Options)

Parameters
Name	Description
`connection`	`std::shared_ptr< TpuConnection >`
`opts`	`Options`

Operators

operator=(TpuClient const &)

Copy and move support

Parameter
Name	Description
	`TpuClient const &`

Returns
Type	Description
`TpuClient &`

operator=(TpuClient &&)

Copy and move support

Parameter
Name	Description
	`TpuClient &&`

Returns
Type	Description
`TpuClient &`

Functions

ListNodes(std::string const &, Options)

Lists nodes.

Parameters
Name	Description
`parent`	`std::string const &` Required. The parent resource name.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns

Type Description

StreamRange< google::cloud::tpu::v2::Node >

a StreamRange to iterate of the results. See the documentation of this type for details. In brief, this class has begin() and end() member functions returning a iterator class meeting the input iterator requirements. The value type for this iterator is a StatusOr as the iteration may fail even after some values are retrieved successfully, for example, if there is a network disconnect. An empty set of results does not indicate an error, it indicates that there are no resources meeting the request criteria. On a successful iteration the StatusOr<T> contains elements of type google.cloud.tpu.v2.Node, or rather, the C++ class generated by Protobuf from that type. Please consult the Protobuf documentation for details on the Protobuf mapping rules.

ListNodes(google::cloud::tpu::v2::ListNodesRequest, Options)

Lists nodes.

Parameters
Name	Description
`request`	`google::cloud::tpu::v2::ListNodesRequest` Unary RPCs, such as the one wrapped by this function, receive a single `request` proto message which includes all the inputs for the RPC. In this case, the proto message is a google.cloud.tpu.v2.ListNodesRequest. Proto messages are converted to C++ classes by Protobuf, using the Protobuf mapping rules.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns

Type Description

StreamRange< google::cloud::tpu::v2::Node >

GetNode(std::string const &, Options)

Gets the details of a node.

Parameters
Name	Description
`name`	`std::string const &` Required. The resource name.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns
Type	Description
`StatusOr< google::cloud::tpu::v2::Node >`	the result of the RPC. The response message type (google.cloud.tpu.v2.Node) is mapped to a C++ class using the Protobuf mapping rules. If the request fails, the `StatusOr` contains the error details.

GetNode(google::cloud::tpu::v2::GetNodeRequest const &, Options)

Gets the details of a node.

Parameters
Name	Description
`request`	`google::cloud::tpu::v2::GetNodeRequest const &` Unary RPCs, such as the one wrapped by this function, receive a single `request` proto message which includes all the inputs for the RPC. In this case, the proto message is a google.cloud.tpu.v2.GetNodeRequest. Proto messages are converted to C++ classes by Protobuf, using the Protobuf mapping rules.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns
Type	Description
`StatusOr< google::cloud::tpu::v2::Node >`	the result of the RPC. The response message type (google.cloud.tpu.v2.Node) is mapped to a C++ class using the Protobuf mapping rules. If the request fails, the `StatusOr` contains the error details.

CreateNode(std::string const &, google::cloud::tpu::v2::Node const &, std::string const &, Options)

Creates a node.

Parameters
Name	Description
`parent`	`std::string const &` Required. The parent resource name.
`node`	`google::cloud::tpu::v2::Node const &` Required. The node.
`node_id`	`std::string const &` The unqualified resource name.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns

Type Description

future< StatusOr< google::cloud::tpu::v2::Node > >

A future that becomes satisfied when the LRO (Long Running Operation) completes or the polling policy in effect for this call is exhausted. The future is satisfied with an error if the LRO completes with an error or the polling policy is exhausted. In this case the StatusOr returned by the future contains the error. If the LRO completes successfully the value of the future contains the LRO's result. For this RPC the result is a google.cloud.tpu.v2.Node proto message. The C++ class representing this message is created by Protobuf, using the Protobuf mapping rules.

CreateNode(ExperimentalTag, NoAwaitTag, std::string const &, google::cloud::tpu::v2::Node const &, std::string const &, Options)

Creates a node.

Specifying the NoAwaitTag immediately returns the [google::longrunning::Operation] that corresponds to the Long Running Operation that has been started. No polling for operation status occurs.

Parameters
Name	Description
	`ExperimentalTag`
	`NoAwaitTag`
`parent`	`std::string const &`
`node`	`google::cloud::tpu::v2::Node const &`
`node_id`	`std::string const &`
`opts`	`Options`

Returns
Type	Description
`StatusOr< google::longrunning::Operation >`

CreateNode(google::cloud::tpu::v2::CreateNodeRequest const &, Options)

Creates a node.

Parameters
Name	Description
`request`	`google::cloud::tpu::v2::CreateNodeRequest const &` Unary RPCs, such as the one wrapped by this function, receive a single `request` proto message which includes all the inputs for the RPC. In this case, the proto message is a google.cloud.tpu.v2.CreateNodeRequest. Proto messages are converted to C++ classes by Protobuf, using the Protobuf mapping rules.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns

Type Description

future< StatusOr< google::cloud::tpu::v2::Node > >

CreateNode(ExperimentalTag, NoAwaitTag, google::cloud::tpu::v2::CreateNodeRequest const &, Options)

Creates a node.

Specifying the NoAwaitTag immediately returns the [google::longrunning::Operation] that corresponds to the Long Running Operation that has been started. No polling for operation status occurs.

Parameters
Name	Description
	`ExperimentalTag`
	`NoAwaitTag`
`request`	`google::cloud::tpu::v2::CreateNodeRequest const &`
`opts`	`Options`

Returns
Type	Description
`StatusOr< google::longrunning::Operation >`

CreateNode(ExperimentalTag, google::longrunning::Operation const &, Options)

Creates a node.

This method accepts a google::longrunning::Operation that corresponds to a previously started Long Running Operation (LRO) and polls the status of the LRO in the background.

Parameters
Name	Description
	`ExperimentalTag`
`operation`	`google::longrunning::Operation const &`
`opts`	`Options`

Returns
Type	Description
`future< StatusOr< google::cloud::tpu::v2::Node > >`

DeleteNode(std::string const &, Options)

Deletes a node.

Parameters
Name	Description
`name`	`std::string const &` Required. The resource name.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns

Type Description

future< StatusOr< google::cloud::tpu::v2::OperationMetadata > >

A future that becomes satisfied when the LRO (Long Running Operation) completes or the polling policy in effect for this call is exhausted. The future is satisfied with an error if the LRO completes with an error or the polling policy is exhausted. In this case the StatusOr returned by the future contains the error. If the LRO completes successfully the value of the future contains the LRO's result. For this RPC the result is a google.cloud.tpu.v2.OperationMetadata proto message. The C++ class representing this message is created by Protobuf, using the Protobuf mapping rules.

DeleteNode(ExperimentalTag, NoAwaitTag, std::string const &, Options)

Deletes a node.

Specifying the NoAwaitTag immediately returns the [google::longrunning::Operation] that corresponds to the Long Running Operation that has been started. No polling for operation status occurs.

Parameters
Name	Description
	`ExperimentalTag`
	`NoAwaitTag`
`name`	`std::string const &`
`opts`	`Options`

Returns
Type	Description
`StatusOr< google::longrunning::Operation >`

DeleteNode(google::cloud::tpu::v2::DeleteNodeRequest const &, Options)

Deletes a node.

Parameters
Name	Description
`request`	`google::cloud::tpu::v2::DeleteNodeRequest const &` Unary RPCs, such as the one wrapped by this function, receive a single `request` proto message which includes all the inputs for the RPC. In this case, the proto message is a google.cloud.tpu.v2.DeleteNodeRequest. Proto messages are converted to C++ classes by Protobuf, using the Protobuf mapping rules.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns

Type Description

future< StatusOr< google::cloud::tpu::v2::OperationMetadata > >

A future that becomes satisfied when the LRO (Long Running Operation) completes or the polling policy in effect for this call is exhausted. The future is satisfied with an error if the LRO completes with an error or the polling policy is exhausted. In this case the StatusOr returned by the future contains the error. If the LRO completes successfully the value of the future contains the LRO's result. For this RPC the result is a google.cloud.tpu.v2.OperationMetadata proto message. The C++ class representing this message is created by Protobuf, using the Protobuf mapping rules.

DeleteNode(ExperimentalTag, NoAwaitTag, google::cloud::tpu::v2::DeleteNodeRequest const &, Options)

Deletes a node.

Specifying the NoAwaitTag immediately returns the [google::longrunning::Operation] that corresponds to the Long Running Operation that has been started. No polling for operation status occurs.

Parameters
Name	Description
	`ExperimentalTag`
	`NoAwaitTag`
`request`	`google::cloud::tpu::v2::DeleteNodeRequest const &`
`opts`	`Options`

Returns
Type	Description
`StatusOr< google::longrunning::Operation >`

DeleteNode(ExperimentalTag, google::longrunning::Operation const &, Options)

Deletes a node.

This method accepts a google::longrunning::Operation that corresponds to a previously started Long Running Operation (LRO) and polls the status of the LRO in the background.

Parameters
Name	Description
	`ExperimentalTag`
`operation`	`google::longrunning::Operation const &`
`opts`	`Options`

Returns
Type	Description
`future< StatusOr< google::cloud::tpu::v2::OperationMetadata > >`

StopNode(google::cloud::tpu::v2::StopNodeRequest const &, Options)

Stops a node.

This operation is only available with single TPU nodes.

Parameters
Name	Description
`request`	`google::cloud::tpu::v2::StopNodeRequest const &` Unary RPCs, such as the one wrapped by this function, receive a single `request` proto message which includes all the inputs for the RPC. In this case, the proto message is a google.cloud.tpu.v2.StopNodeRequest. Proto messages are converted to C++ classes by Protobuf, using the Protobuf mapping rules.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns

Type Description

future< StatusOr< google::cloud::tpu::v2::Node > >

StopNode(ExperimentalTag, NoAwaitTag, google::cloud::tpu::v2::StopNodeRequest const &, Options)

Stops a node.

Specifying the NoAwaitTag immediately returns the [google::longrunning::Operation] that corresponds to the Long Running Operation that has been started. No polling for operation status occurs.

Parameters
Name	Description
	`ExperimentalTag`
	`NoAwaitTag`
`request`	`google::cloud::tpu::v2::StopNodeRequest const &`
`opts`	`Options`

Returns
Type	Description
`StatusOr< google::longrunning::Operation >`

StopNode(ExperimentalTag, google::longrunning::Operation const &, Options)

Stops a node.

This method accepts a google::longrunning::Operation that corresponds to a previously started Long Running Operation (LRO) and polls the status of the LRO in the background.

Parameters
Name	Description
	`ExperimentalTag`
`operation`	`google::longrunning::Operation const &`
`opts`	`Options`

Returns
Type	Description
`future< StatusOr< google::cloud::tpu::v2::Node > >`

StartNode(google::cloud::tpu::v2::StartNodeRequest const &, Options)

Starts a node.

Parameters
Name	Description
`request`	`google::cloud::tpu::v2::StartNodeRequest const &` Unary RPCs, such as the one wrapped by this function, receive a single `request` proto message which includes all the inputs for the RPC. In this case, the proto message is a google.cloud.tpu.v2.StartNodeRequest. Proto messages are converted to C++ classes by Protobuf, using the Protobuf mapping rules.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns

Type Description

future< StatusOr< google::cloud::tpu::v2::Node > >

StartNode(ExperimentalTag, NoAwaitTag, google::cloud::tpu::v2::StartNodeRequest const &, Options)

Starts a node.

Specifying the NoAwaitTag immediately returns the [google::longrunning::Operation] that corresponds to the Long Running Operation that has been started. No polling for operation status occurs.

Parameters
Name	Description
	`ExperimentalTag`
	`NoAwaitTag`
`request`	`google::cloud::tpu::v2::StartNodeRequest const &`
`opts`	`Options`

Returns
Type	Description
`StatusOr< google::longrunning::Operation >`

StartNode(ExperimentalTag, google::longrunning::Operation const &, Options)

Starts a node.

This method accepts a google::longrunning::Operation that corresponds to a previously started Long Running Operation (LRO) and polls the status of the LRO in the background.

Parameters
Name	Description
	`ExperimentalTag`
`operation`	`google::longrunning::Operation const &`
`opts`	`Options`

Returns
Type	Description
`future< StatusOr< google::cloud::tpu::v2::Node > >`

UpdateNode(google::cloud::tpu::v2::Node const &, google::protobuf::FieldMask const &, Options)

Updates the configurations of a node.

Parameters
Name	Description
`node`	`google::cloud::tpu::v2::Node const &` Required. The node. Only fields specified in update_mask are updated.
`update_mask`	`google::protobuf::FieldMask const &` Required. Mask of fields from [Node][Tpu.Node] to update. Supported fields: [description, tags, labels, metadata, network_config.enable_external_ips].
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns

Type Description

future< StatusOr< google::cloud::tpu::v2::Node > >

UpdateNode(ExperimentalTag, NoAwaitTag, google::cloud::tpu::v2::Node const &, google::protobuf::FieldMask const &, Options)

Updates the configurations of a node.

Specifying the NoAwaitTag immediately returns the [google::longrunning::Operation] that corresponds to the Long Running Operation that has been started. No polling for operation status occurs.

Parameters
Name	Description
	`ExperimentalTag`
	`NoAwaitTag`
`node`	`google::cloud::tpu::v2::Node const &`
`update_mask`	`google::protobuf::FieldMask const &`
`opts`	`Options`

Returns
Type	Description
`StatusOr< google::longrunning::Operation >`

UpdateNode(google::cloud::tpu::v2::UpdateNodeRequest const &, Options)

Updates the configurations of a node.

Parameters
Name	Description
`request`	`google::cloud::tpu::v2::UpdateNodeRequest const &` Unary RPCs, such as the one wrapped by this function, receive a single `request` proto message which includes all the inputs for the RPC. In this case, the proto message is a google.cloud.tpu.v2.UpdateNodeRequest. Proto messages are converted to C++ classes by Protobuf, using the Protobuf mapping rules.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns

Type Description

future< StatusOr< google::cloud::tpu::v2::Node > >

UpdateNode(ExperimentalTag, NoAwaitTag, google::cloud::tpu::v2::UpdateNodeRequest const &, Options)

Updates the configurations of a node.

Specifying the NoAwaitTag immediately returns the [google::longrunning::Operation] that corresponds to the Long Running Operation that has been started. No polling for operation status occurs.

Parameters
Name	Description
	`ExperimentalTag`
	`NoAwaitTag`
`request`	`google::cloud::tpu::v2::UpdateNodeRequest const &`
`opts`	`Options`

Returns
Type	Description
`StatusOr< google::longrunning::Operation >`

UpdateNode(ExperimentalTag, google::longrunning::Operation const &, Options)

Updates the configurations of a node.

This method accepts a google::longrunning::Operation that corresponds to a previously started Long Running Operation (LRO) and polls the status of the LRO in the background.

Parameters
Name	Description
	`ExperimentalTag`
`operation`	`google::longrunning::Operation const &`
`opts`	`Options`

Returns
Type	Description
`future< StatusOr< google::cloud::tpu::v2::Node > >`

GenerateServiceIdentity(google::cloud::tpu::v2::GenerateServiceIdentityRequest const &, Options)

Generates the Cloud TPU service identity for the project.

Parameters
Name	Description
`request`	`google::cloud::tpu::v2::GenerateServiceIdentityRequest const &` Unary RPCs, such as the one wrapped by this function, receive a single `request` proto message which includes all the inputs for the RPC. In this case, the proto message is a google.cloud.tpu.v2.GenerateServiceIdentityRequest. Proto messages are converted to C++ classes by Protobuf, using the Protobuf mapping rules.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns
Type	Description
`StatusOr< google::cloud::tpu::v2::GenerateServiceIdentityResponse >`	the result of the RPC. The response message type (google.cloud.tpu.v2.GenerateServiceIdentityResponse) is mapped to a C++ class using the Protobuf mapping rules. If the request fails, the `StatusOr` contains the error details.

ListAcceleratorTypes(std::string const &, Options)

Lists accelerator types supported by this API.

Parameters
Name	Description
`parent`	`std::string const &` Required. The parent resource name.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns

Type Description

StreamRange< google::cloud::tpu::v2::AcceleratorType >

a StreamRange to iterate of the results. See the documentation of this type for details. In brief, this class has begin() and end() member functions returning a iterator class meeting the input iterator requirements. The value type for this iterator is a StatusOr as the iteration may fail even after some values are retrieved successfully, for example, if there is a network disconnect. An empty set of results does not indicate an error, it indicates that there are no resources meeting the request criteria. On a successful iteration the StatusOr<T> contains elements of type google.cloud.tpu.v2.AcceleratorType, or rather, the C++ class generated by Protobuf from that type. Please consult the Protobuf documentation for details on the Protobuf mapping rules.

ListAcceleratorTypes(google::cloud::tpu::v2::ListAcceleratorTypesRequest, Options)

Lists accelerator types supported by this API.

Parameters
Name	Description
`request`	`google::cloud::tpu::v2::ListAcceleratorTypesRequest` Unary RPCs, such as the one wrapped by this function, receive a single `request` proto message which includes all the inputs for the RPC. In this case, the proto message is a google.cloud.tpu.v2.ListAcceleratorTypesRequest. Proto messages are converted to C++ classes by Protobuf, using the Protobuf mapping rules.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns

Type Description

StreamRange< google::cloud::tpu::v2::AcceleratorType >

a StreamRange to iterate of the results. See the documentation of this type for details. In brief, this class has begin() and end() member functions returning a iterator class meeting the input iterator requirements. The value type for this iterator is a StatusOr as the iteration may fail even after some values are retrieved successfully, for example, if there is a network disconnect. An empty set of results does not indicate an error, it indicates that there are no resources meeting the request criteria. On a successful iteration the StatusOr<T> contains elements of type google.cloud.tpu.v2.AcceleratorType, or rather, the C++ class generated by Protobuf from that type. Please consult the Protobuf documentation for details on the Protobuf mapping rules.

GetAcceleratorType(std::string const &, Options)

Gets AcceleratorType.

Parameters
Name	Description
`name`	`std::string const &` Required. The resource name.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns
Type	Description
`StatusOr< google::cloud::tpu::v2::AcceleratorType >`	the result of the RPC. The response message type (google.cloud.tpu.v2.AcceleratorType) is mapped to a C++ class using the Protobuf mapping rules. If the request fails, the `StatusOr` contains the error details.

GetAcceleratorType(google::cloud::tpu::v2::GetAcceleratorTypeRequest const &, Options)

Gets AcceleratorType.

Parameters
Name	Description
`request`	`google::cloud::tpu::v2::GetAcceleratorTypeRequest const &` Unary RPCs, such as the one wrapped by this function, receive a single `request` proto message which includes all the inputs for the RPC. In this case, the proto message is a google.cloud.tpu.v2.GetAcceleratorTypeRequest. Proto messages are converted to C++ classes by Protobuf, using the Protobuf mapping rules.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns
Type	Description
`StatusOr< google::cloud::tpu::v2::AcceleratorType >`	the result of the RPC. The response message type (google.cloud.tpu.v2.AcceleratorType) is mapped to a C++ class using the Protobuf mapping rules. If the request fails, the `StatusOr` contains the error details.

ListRuntimeVersions(std::string const &, Options)

Lists runtime versions supported by this API.

Parameters
Name	Description
`parent`	`std::string const &` Required. The parent resource name.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns

Type Description

StreamRange< google::cloud::tpu::v2::RuntimeVersion >

a StreamRange to iterate of the results. See the documentation of this type for details. In brief, this class has begin() and end() member functions returning a iterator class meeting the input iterator requirements. The value type for this iterator is a StatusOr as the iteration may fail even after some values are retrieved successfully, for example, if there is a network disconnect. An empty set of results does not indicate an error, it indicates that there are no resources meeting the request criteria. On a successful iteration the StatusOr<T> contains elements of type google.cloud.tpu.v2.RuntimeVersion, or rather, the C++ class generated by Protobuf from that type. Please consult the Protobuf documentation for details on the Protobuf mapping rules.

ListRuntimeVersions(google::cloud::tpu::v2::ListRuntimeVersionsRequest, Options)

Lists runtime versions supported by this API.

Parameters
Name	Description
`request`	`google::cloud::tpu::v2::ListRuntimeVersionsRequest` Unary RPCs, such as the one wrapped by this function, receive a single `request` proto message which includes all the inputs for the RPC. In this case, the proto message is a google.cloud.tpu.v2.ListRuntimeVersionsRequest. Proto messages are converted to C++ classes by Protobuf, using the Protobuf mapping rules.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns

Type Description

StreamRange< google::cloud::tpu::v2::RuntimeVersion >

a StreamRange to iterate of the results. See the documentation of this type for details. In brief, this class has begin() and end() member functions returning a iterator class meeting the input iterator requirements. The value type for this iterator is a StatusOr as the iteration may fail even after some values are retrieved successfully, for example, if there is a network disconnect. An empty set of results does not indicate an error, it indicates that there are no resources meeting the request criteria. On a successful iteration the StatusOr<T> contains elements of type google.cloud.tpu.v2.RuntimeVersion, or rather, the C++ class generated by Protobuf from that type. Please consult the Protobuf documentation for details on the Protobuf mapping rules.

GetRuntimeVersion(std::string const &, Options)

Gets a runtime version.

Parameters
Name	Description
`name`	`std::string const &` Required. The resource name.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns
Type	Description
`StatusOr< google::cloud::tpu::v2::RuntimeVersion >`	the result of the RPC. The response message type (google.cloud.tpu.v2.RuntimeVersion) is mapped to a C++ class using the Protobuf mapping rules. If the request fails, the `StatusOr` contains the error details.

GetRuntimeVersion(google::cloud::tpu::v2::GetRuntimeVersionRequest const &, Options)

Gets a runtime version.

Parameters
Name	Description
`request`	`google::cloud::tpu::v2::GetRuntimeVersionRequest const &` Unary RPCs, such as the one wrapped by this function, receive a single `request` proto message which includes all the inputs for the RPC. In this case, the proto message is a google.cloud.tpu.v2.GetRuntimeVersionRequest. Proto messages are converted to C++ classes by Protobuf, using the Protobuf mapping rules.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns
Type	Description
`StatusOr< google::cloud::tpu::v2::RuntimeVersion >`	the result of the RPC. The response message type (google.cloud.tpu.v2.RuntimeVersion) is mapped to a C++ class using the Protobuf mapping rules. If the request fails, the `StatusOr` contains the error details.

GetGuestAttributes(google::cloud::tpu::v2::GetGuestAttributesRequest const &, Options)

Retrieves the guest attributes for the node.

Parameters
Name	Description
`request`	`google::cloud::tpu::v2::GetGuestAttributesRequest const &` Unary RPCs, such as the one wrapped by this function, receive a single `request` proto message which includes all the inputs for the RPC. In this case, the proto message is a google.cloud.tpu.v2.GetGuestAttributesRequest. Proto messages are converted to C++ classes by Protobuf, using the Protobuf mapping rules.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns
Type	Description
`StatusOr< google::cloud::tpu::v2::GetGuestAttributesResponse >`	the result of the RPC. The response message type (google.cloud.tpu.v2.GetGuestAttributesResponse) is mapped to a C++ class using the Protobuf mapping rules. If the request fails, the `StatusOr` contains the error details.