title: How to use boost::property_tree to parse JSON with array root
body: <p>How can I get data from JSON with array as root node by using Boost.PropertyTree?</p>
  
  <pre><code>[
    {
        "ID": "cc7c3e83-9b94-4fb2-aaa3-9da458c976f7",
        "Type": "VM"
    }
  ]
  </code></pre>