{
 "layers": [
  {
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   "layerName": "311 Heat Map",
   "layerType": "Raster Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "Higher - Fewer",
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     "groupId": "0",
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   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": "Value"
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}