{
  "description": "Layer version as string instead of int",
  "specification_reference": "https://github.com/mapbox/vector-tile-spec/blob/master/2.1/README.md",
  "validity": {
    "v1": false,
    "v2": false,
    "error": "fatal"
  },
  "json": {
    "layers": [
      {
        "version": "2",
        "name": "hello",
        "features": [
          {
            "id": 1,
            "tags": [],
            "type": 1,
            "geometry": [
              9,
              50,
              34
            ]
          }
        ],
        "keys": [],
        "values": [],
        "extent": 4096
      }
    ]
  },
  "proto": [
    "2.1",
    "required uint32 version",
    "required string version"
  ]
}