Loading feature data into Vega-Lite

Question

I'm trying to plot area shapes using vega-lite but the following area is being reported.

[Warning] Dropping {"type":"geojson"} from channel "shape" since it does not contain any data field, datum, value, or signal.

The data is being successfully loaded as I can see it the vega-lite editor/ viewer and it I've included a couple of records below and in the link to the vega-lite snippet.

I think the trouble is pointing the right fields in the data.

{
  "$schema": "https://vega.github.io/schema/vega-lite/v5.json",
  "data": {
    "values": [
      {
        "OBJECTID": 4691,
        "WD21CD": "E05011118",
        "WD21NM": "Acocks Green",
        "WD21NMW": " ",
        "BNG_E": 412052,
        "BNG_N": 282830,
        "LONG": -1.8241,
        "LAT": 52.4433,
        "SHAPE_Length": 0.0924,
        "SHAPE_Area": 0.0005,
        "geometry": {
          "type": "MultiPolygon",
          "coordinates": [
            [
              [
                [-1.8093, 52.4454],
                [-1.8173, 52.4324],
                [-1.8253, 52.4293],
                [-1.839, 52.4341],
                [-1.8355, 52.4382],
                [-1.831, 52.4483],
                [-1.8345, 52.4522],
                [-1.824, 52.4571],
                [-1.8139, 52.4547],
                [-1.8093, 52.4454]
              ]
            ]
          ]
        }
      },
      {
        "OBJECTID": 4692,
        "WD21CD": "E05011119",
        "WD21NM": "Allens Cross",
        "WD21NMW": " ",
        "BNG_E": 401463,
        "BNG_N": 279538,
        "LONG": -1.9799,
        "LAT": 52.4138,
        "SHAPE_Length": 0.0959,
        "SHAPE_Area": 0.0002,
        "geometry": {
          "type": "MultiPolygon",
          "coordinates": [
            [
              [
                [-1.9618, 52.4212],
                [-1.9717, 52.4163],
                [-1.9758, 52.4079],
                [-1.9835, 52.4095],
                [-1.9978, 52.4097],
                [-1.986, 52.4167],
                [-1.975, 52.4205],
                [-1.9807, 52.4247],
                [-1.9754, 52.4268],
                [-1.9679, 52.4214],
                [-1.9618, 52.4212]
              ]
            ]
          ]
        }
      }
    ],
    "format": {"type": "json"}
  },
  "mark": "geoshape",
  "encoding": {"shape": {"type": "geojson"}},
  "width": 500,
  "height": 500
}