{
  "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"
  },
  "proto": [
    "2.1",
    "required uint32 version",
    "required string version"
  ]
}