<INSTANCE_TYPE_COLLECTION>
  <INSTANCE_TYPE href="http://localhost:4567/instance_type/large" name="large">
    <ID>large</ID>
    <NAME>large</NAME>
    <CPU>8</CPU>
    <MEMORY>8192</MEMORY>
  </INSTANCE_TYPE>
  <INSTANCE_TYPE href="http://localhost:4567/instance_type/medium" name="medium">
    <ID>medium</ID>
    <NAME>medium</NAME>
    <CPU>4</CPU>
    <MEMORY>4096</MEMORY>
  </INSTANCE_TYPE>
  <INSTANCE_TYPE href="http://localhost:4567/instance_type/small" name="small">
    <ID>small</ID>
    <NAME>small</NAME>
    <CPU>1</CPU>
    <MEMORY>1024</MEMORY>
  </INSTANCE_TYPE>
</INSTANCE_TYPE_COLLECTION>
