@java.lang.Override
      public final Builder setUnknownFields(
          final com.google.protobuf.UnknownFieldSet unknownFields) {
        return super.setUnknownFields(unknownFields);
      }
<pre>
Optional. The TPU node(s) being requested.
</pre>

<code>
repeated .google.cloud.tpu.v2.QueuedResource.Tpu.NodeSpec node_spec = 1 [(.google.api.field_behavior) = OPTIONAL];
</code>
java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/QueuedResource.java