{
 "layers": [
  {
   "layerId": 0,
   "layerName": "Point Constraint",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "64d5f8ca6c02c6230b495cf852e6c1ef",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAgElEQVQ4jWNhoDJgGTWQYsAybAxsgNIHoJgiAxuyGBgiQYzjDAw55xkYpiBZQLKBDoYMDDlTwWZBQDYDQ+Q0CLOBLAMtGRjeElBDWaQcZ2AQxheOLAT0N0yDhh3MpdAwJNtAEGg4z8Bw4DwDgwOYhydCSPEyweQy/HIK0WDwGwgAyOIYbfgIzm4AAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": ""
    }
   ]
  },
  {
   "layerId": 1,
   "layerName": "Line Constraint",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "ed1643a0da332b49478877b3f37f0492",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAQElEQVQ4jWNhoDJgGTWQYsBCuRGoYKQa+J+BIYqBgUGHQrOuMDIwLKONCxkZGJZR1UBqAhaqmsYwaiA1wOCPFADbMgP4OPgWwAAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": ""
    }
   ]
  },
  {
   "layerId": 2,
   "layerName": "Area Constraint",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "87f01cfa6331cb3fbc8717cbb910033a",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAPElEQVQ4jWP5z8CgywDB1ACXWaCGRVLJQAaQgVQFLKMGUgxYKDcCFYwaSDlgoYIZKGDUwJEShpepaN5lAOzgBKnQCje2AAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": ""
    }
   ]
  }
 ]
}