{
 "layers": [
  {
   "layerId": 0,
   "layerName": "CityBuildings",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "BUILDING",
     "url": "1ea42a67d65ee374bbf7ab3132192b77",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAVUlEQVQ4je3UsQ0AIAhE0SsYBwZiQgZiIA0aC+uj5CdSvhgKBMBCY1LD3WFmFJSZiIgLFqaq9O/igZ3JgHTCE38D8kmD8TUg39lhHUe2ZxywDmO9jjYCXBMsjGV6oAAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "BUILDING"
     ]
    },
    {
     "label": "DECK",
     "url": "4ab6a58f6e35d38a35aa05156a389db2",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAVElEQVQ4jWNhYGD4z0BFwAIirNQYGGSEKTPoyVsGhmO3oAaCDJMVpqILqQlYqGoaw6iB1AAsVDEFCYwaSDlgoYIZKGCkGvjkLeUGwcwAGwgqaakFALJ5CvGn44ytAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "DECK"
     ]
    },
    {
     "label": "SMOKESTACK",
     "url": "fd01a91bb60b1e900d1bfb3444cfdcab",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAWklEQVQ4jWNhYGD4z0BFwAIiitUYGKyEKTPo2FsGht5bUANBhllSaCAI9MJcSE3AMmogxYCFciNQwaiBlAMWKpiBAkYNpByAwxBUOFIKYGaADQSVtKDCkRoAAAWXC9BjEgTQAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "SMOKESTACK"
     ]
    },
    {
     "label": "WATER TOWER",
     "url": "ab6a805b908730f5e838ce3b3f5f2abb",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAXklEQVQ4jWNhYGD4z0BFwAIi5P0SGQTUDCky6MOt8wwPN82HGAgyjF/dgGLXPWSAGkhNwDJqIMWAhXIjUMGogZQDFiqYgQJGDaQcgMMQVDhSCmBmgA0ElbSgwpEaAAAjxhKB2nB1+QAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "WATER TOWER"
     ]
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": "Type"
    }
   ]
  }
 ]
}