{
    "s2tilejson": "1.0.0",
    "name": "OpenStreetMap",
    "description": "A free editable map of the whole world.",
    "version": "1.0.0",
    "attribution": "https://www.openstreetmap.org/copyright/",
    "scheme": "xyz",
    "minzoom": 0,
    "maxzoom": 18,
    "bounds": { // bounds[zoom] = [...]
        "0": [0, 0, 0, 0],
        "1": [0, 1, 0, 0],
        "2": [0, 3, 1, 3]
    },
    "vector_layers": [
        {
            "id": "telephone",
            "description": "tracking phone numbers",
            "minzoom": 0,
            "maxzoom": 13,
            "fields": {
                "phone_number": "the phone number",
                "payment": "how to pay"
            },
            "drawTypes": [1]
        },
        {
            "id": "bicycle_parking",
            "fields": {
                "type": "the type of bike parking",
                "year_installed": "the year the bike parking was installed"
            }
        },
        {
            "id": "showers",
            "fields": {
                "water_temperature": "the maximum water temperature",
                "wear_sandles": "whether you should wear sandles or not",
                "wheelchair": "is the shower wheelchair friendly?"
            }
        }
    ]
}