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 "layers": [
  {
   "layerId": 0,
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   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
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     "groupId": "0",
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    },
    {
     "label": "unclassified",
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   ],
   "legendGroups": [
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     "heading": "Sediment-hosted copper deposits"
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}