{
 "layers": [
  {
   "layerId": 1,
   "layerName": "Salt Bins",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "1cdaeadb5cfb499dbcb7c69f6a83b294",
     "imageData": "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",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": ""
    }
   ]
  },
  {
   "layerId": 0,
   "layerName": "Gritting Routes",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "Priority Gritting Route",
     "url": "9f7a5ecce63ae6d0a95bf07b995bc271",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAPElEQVQ4jWNhoDJgGTWQYsBCuRGoYCQbWOzD8J8Sg3q3MDCiGEgtwIJuA9UMpBZgoZpJUDBqIOVg8IchAJtXBJPNrXeDAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Priority Gritting Route"
     ]
    },
    {
     "label": "Secondary Gritting Route",
     "url": "157718c74dec18d70680f5b316619781",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAO0lEQVQ4jWNhoDJgGTWQYsBCuRGoYKQauGIFw39qGBYRwcBIGxdGRDAwUtVAagIWqprGMGogNcDgjxQAMVAEArMf7RkAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Secondary Gritting Route"
     ]
    },
    {
     "label": "<all other values>",
     "url": "d9986d923d050cdffefc47f8cd88f176",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAOUlEQVQ4jWNhoDJgGTWQYsBCuRGoYMQa6FP8nyqmbellpJELt/QyUtdAKgIWahoGAqMGUg4GfxgCAJ81BJOt3f9KAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "1",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": "PRIORITY"
    },
    {
     "id": "1",
     "heading": ""
    }
   ]
  }
 ]
}