{
 "layers": [
  {
   "layerId": 0,
   "layerName": "Axes ferroviaires principaux supportant plus de 30000 passages de trains par an en Wallonie",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "Axe ferroviaire",
     "url": "1d98a2a6c1b845272ecf5bc5e35ff157",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAPUlEQVQ4jWNhoDJgGTWQYsAyLA1sgGKqGYgXsDDQ0MAGIvU44FDbQK6Bgz8MG6htIF7AwkBlwDJqIAOlAAA3fQURGhfKTQAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": ""
    }
   ]
  }
 ]
}