{
  "type": "DocumentFragment",
  "span": {
    "start": 1,
    "end": 50,
    "ctxt": 0
  },
  "children": [
    {
      "type": "Text",
      "span": {
        "start": 1,
        "end": 50,
        "ctxt": 0
      },
      "value": "textarea content with <em>pseudo</em> <foo>markup"
    }
  ]
}