@java.lang.Override
    public int getSerializedSize() {
      int size = memoizedSize;
      if (size != -1) return size;

      size = 0;
      for (int i = 0; i < nodeSpec_.size(); i++) {
        size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, nodeSpec_.get(i));
      }
      size += getUnknownFields().getSerializedSize();
      memoizedSize = size;
      return size;
    }
<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