如何在mapbox-gl中使用clusterProperties

var map = new mapboxgl.Map({
  container: 'map',
  style: 'mapbox://styles/mapbox/streets-v11',
  center: [lng, lat],
  zoom: zoomLevel
});

map.addSource('clusters', {
  type: 'geojson',
  data: 'your-data-source.geojson'
});

map.addLayer({
  id: 'clusters',
  type: 'circle',
  source: 'clusters',
  filter: ['has', 'point_count'],
  paint: {
    'circle-color': [
      'step',
      ['get', 'point_count'],
      '#51bbd6',
      100,
      '#f1f075',
      750,
      '#f28cb1'
    ],
    'circle-radius': [
      'step',
      ['get', 'point_count'],
      20,
      100,
      30,
      750,
      40
    ]
  }
});

map.addLayer({
  id: 'cluster-count',
  type: 'symbol',
  source: 'clusters',
  filter: ['has', 'point_count'],
  layout: {
    'text-field': '{point_count_abbreviated}',
    'text-font': ['Arial Unicode MS Bold'],
    'text-size': 12
  }
});