@java.lang.Override
    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
      return super.setUnknownFields(unknownFields);
    }
<pre>
Required. The node. Only fields specified in update_mask are updated.
</pre>

<code>.google.cloud.tpu.v2.Node node = 2 [(.google.api.field_behavior) = REQUIRED];</code>
java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/UpdateNodeRequest.java