{
  "description": "Adds an extra Value type called \"my_value\" which is invalid. In the future there might be backwards compatible Values and they should be ignored by decoders, but for version 2.x this should be a fatal error.",
  "specification_reference": "https://github.com/mapbox/vector-tile-spec/blob/master/2.1/README.md#41-layers",
  "validity": {
    "v1": false,
    "v2": false,
    "error": "fatal"
  },
  "json": {
    "layers": [
      {
        "name": "howdy",
        "version": 2,
        "features": [
          {
            "id": 1,
            "tags": [],
            "type": 1,
            "geometry": [
              9,
              50,
              34
            ]
          }
        ],
        "keys": [],
        "values": [
          {
            "my_value": 10
          }
        ],
        "extent": 4096
      }
    ]
  },
  "proto": [
    "2.1",
    "extensions 8 to max;",
    "optional int64 my_value = 20; extensions 21 to max;"
  ]
}