{
 "layers": [
  {
   "layerId": 0,
   "layerName": "Sewer Control Valves",
   "layerType": "Feature Layer",
   "minScale": 8000,
   "maxScale": 0,
   "legend": [
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    },
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     "label": "Unknown",
     "url": "cce01cd48f2dd08eb232bb83d654d907",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAiElEQVQ4jWNhoDJgGXIGMjMwMEiSoP8/AwPDU3wGggx7TKxpjIyM//7//8+Mz0CKAcuogQwsLCz/2NnZmYgJih8/fvz5+/cv/jBMS0s7NXXqVAtiDDQ1Nd105syZ0UihMmBBF1i4cCHLgQMH1hKj+fbt20qEDHzy9etX02vXrlHPhQwUgsFvIAAHKiTzAUtfmgAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
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    },
    {
     "label": "<all other values>",
     "url": "cce01cd48f2dd08eb232bb83d654d907",
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   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": "Valve Type"
    },
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}