<ModelRoot>
  <ComputeNode hostname="hostname_0" uuid="Node_0" id="0" state="up" human_id="" status="enabled" vcpus="10" disk="250" disk_capacity="250" memory="64">
    <Instance human_id="" state="active" uuid="INSTANCE_6" vcpus="1" disk="20" disk_capacity="20" memory="2" metadata='{"optimize": true,"top": "floor", "nested": {"x": "y"}}'/>
    <Instance human_id="" state="active" uuid="INSTANCE_7" vcpus="2" disk="20" disk_capacity="20" memory="2" metadata='{"optimize": true,"top": "floor", "nested": {"x": "y"}}'/>
    <Instance human_id="" state="active" uuid="INSTANCE_8" vcpus="4" disk="20" disk_capacity="20" memory="2" metadata='{"optimize": true,"top": "floor", "nested": {"x": "y"}}'/>
    <Instance human_id="" state="active" uuid="INSTANCE_9" vcpus="8" disk="20" disk_capacity="20" memory="2" metadata='{"optimize": true,"top": "floor", "nested": {"x": "y"}}'/>
  </ComputeNode>
  <ComputeNode hostname="hostname_1" uuid="Node_1" id="1" state="up" human_id="" status="enabled" vcpus="10" disk="250" disk_capacity="250" memory="64"/>
</ModelRoot>
