{
  "type": "Stylesheet",
  "span": {
    "start": 0,
    "end": 21,
    "ctxt": 0
  },
  "rules": [
    {
      "type": "ImportRule",
      "span": {
        "start": 0,
        "end": 21,
        "ctxt": 0
      },
      "src": {
        "type": "String",
        "span": {
          "start": 8,
          "end": 20,
          "ctxt": 0
        },
        "value": "foo.css"
      },
      "condition": null
    }
  ]
}