{
 "layers": [
  {
   "layerId": 0,
   "layerName": "History Polygon",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "23957dd2e6eed27b3b86fb8831ab9cdf",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAS0lEQVQ4jWMpLCrczsTE6MBABfDv3/8DLExMjA5ZHaEc1DBwWsVqBxZqGIQMRg0cNXDUwFEDRw2EGvjv3/8D0ypWO1DDsH///h8AAJy4E1heH7BwAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": ""
    }
   ]
  },
  {
   "layerId": 1,
   "layerName": "History Point",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "2bddcaac7b697ac126a2ce5d3610646f",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAlElEQVQ4jWNhoDJgGTVw1EA4aIDSB6CYIgMbBHWd6xkYGBi+v7pX/+Pl/UYkC0g20IFDXLFeQNeJgYGBgUGAwYnhw+V99e8v70V2NWkGcoopEVBCmoEY4PurewwMeMKRkIEN7y/vZfj+6l49zKXQMCTbQAYGBoaGHy/vH/jx8r4DjI9PMbFePoDPVeQYSDQYNZByAAD58CoeeF1Q4wAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": ""
    }
   ]
  },
  {
   "layerId": 2,
   "layerName": "Spatial Collections Line",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "12c425438acb3e15b23ab48fb1912987",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAOUlEQVQ4jWNhoDJgGTVw1MDBYmCUUkMD438Ge0oM+s/IcHDZvYYG2rhw2b2GBqoaSE0wauCogWQAACp/CdWuEk4vAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": ""
    }
   ]
  },
  {
   "layerId": 3,
   "layerName": "Spatial Collections Point",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "0a70b259c831bed4f194d10a6db43888",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAkElEQVQ4jWNhoDJgGTVw1EA4aIDSB6CYIgMbtCV86xkYGBhef7lZ/+rLrUYkC0g20EGMR61eW9wHwhP3Ybj6ckv91RebGXAZStBAUR51AkpIMxADvP5yk4EBTzgSMrDh6ovNDK+/3KyHuRQahmQbyMDAwNDw6sutA6++3HKA8fEpJtbLB/C5ihwDiQajBlIOAMe7KgFDJCCNAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": ""
    }
   ]
  },
  {
   "layerId": 4,
   "layerName": "History Line",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "8bdd1a9f0d9bb85af0157120f7a370ee",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAOUlEQVQ4jWNhoDJgGTVw1MDBYmCGzdyG/wxM9pQYxMjw7+CMI8kNtHHhjCPJDVQ1kJpg1MBRA8kAAHpICZAlWdgKAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": ""
    }
   ]
  },
  {
   "layerId": 5,
   "layerName": "Spatial Collections Polygon",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "45ddb72674e4443a15e1fefae5b84bca",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAASklEQVQ4jWMpyi/azsTE5MBABfDv378DLExMTA7trh0c1DCwcneFAws1DEIGowaOGjhq4KiBowZCDfz379+Byt0VDtQw7N+/fwcAnE0TSTB8g0kAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": ""
    }
   ]
  }
 ]
}