public final OperationFuture<Node, OperationMetadata> updateNodeAsync(
      Node node, FieldMask updateMask) {
    UpdateNodeRequest request =
        UpdateNodeRequest.newBuilder().setNode(node).setUpdateMask(updateMask).build();
    return updateNodeAsync(request);
  }
Updates the configurations of a node.

<p>Sample code:

<pre>{@code
// This snippet has been automatically generated and should be regarded as a code template only.
// It will require modifications to work:
// - It may require correct/in-range values for request initialization.
// - It may require specifying regional endpoints when creating the service client as shown in
// https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
try (TpuClient tpuClient = TpuClient.create()) {
  Node node = Node.newBuilder().build();
  FieldMask updateMask = FieldMask.newBuilder().build();
  Node response = tpuClient.updateNodeAsync(node, updateMask).get();
}
}</pre>

@param node Required. The node. Only fields specified in update_mask are updated.
@param updateMask Required. Mask of fields from [Node][Tpu.Node] to update. Supported fields:
    [description, tags, labels, metadata, network_config.enable_external_ips].
@throws com.google.api.gax.rpc.ApiException if the remote call fails
java-tpu/google-cloud-tpu/src/main/java/com/google/cloud/tpu/v2alpha1/TpuClient.java