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     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAAAXNSR0IB2cksfwAAAAlwSFlzAAAOxAAADsQBlSsOGwAAAEVJREFUOI1jYaAyYKGZgTk5Of8pNWzKlCmMKC5st95PtmGVRx0ZGBho6eVRA0cNHDVw1ECcBsKKIHLAlClTGFEMhAlQCgDLfwxKPI6qCAAAAABJRU5ErkJggg==",
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     "width": 20,
     "values": [
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    {
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     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAAAXNSR0IB2cksfwAAAAlwSFlzAAAOxAAADsQBlSsOGwAAAEZJREFUOI1jYaAyYKGZgTk5Of8pNWzKlCmMKC5ktplCtmF/j+QwMDDQ0sujBo4aOGrgqIE4DYQVQeSAKVOmMKIYCBOgFAAAB7cM+K/XgTkAAAAASUVORK5CYII=",
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     "height": 20,
     "width": 20,
     "values": [
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    },
    {
     "label": "40.1 - 81.1",
     "url": "4458247a149847e5d4672d86f7bd0072",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAAAXNSR0IB2cksfwAAAAlwSFlzAAAOxAAADsQBlSsOGwAAAEZJREFUOI1jYaAyYKGZgTk5Of8pNWzKlCmMKC7cwTGFbMM8fuQwMDDQ0sujBo4aOGrgqIE4DYQVQeSAKVOmMKIYCBOgFAAA2psMdyAbNnoAAAAASUVORK5CYII=",
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     "height": 20,
     "width": 20,
     "values": [
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    }
   ]
  },
  {
   "layerId": 7,
   "layerName": "Median Age",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
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     "label": "0.0 - 25.0",
     "url": "766090950d1b091a29a4cd5c0a07e666",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAAAXNSR0IB2cksfwAAAAlwSFlzAAAOxAAADsQBlSsOGwAAAEZJREFUOI1jYaAyYKGZgTk5Of8pNWzKlCmMKC6cPFmYbMNyc98yMDDQ0sujBo4aOGrgqIE4DYQVQeSAKVOmMKIYCBOgFAAA44cMknr8PJEAAAAASUVORK5CYII=",
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     "values": [
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     "url": "696e2cc779d7d8320c735e402dcb6d8f",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAAAXNSR0IB2cksfwAAAAlwSFlzAAAOxAAADsQBlSsOGwAAAEZJREFUOI1jYaAyYKGZgTk5Of8pNWzKlCmMKC686PObbMP0t7AyMDDQ0sujBo4aOGrgqIE4DYQVQeSAKVOmMKIYCBOgFAAAl4kLs9tv1SwAAAAASUVORK5CYII=",
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     "width": 20,
     "values": [
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    {
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     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAAAXNSR0IB2cksfwAAAAlwSFlzAAAOxAAADsQBlSsOGwAAAEVJREFUOI1jYaAyYKGZgTk5Of8pNWzKlCmMKC7czGBMtmG+DGcZGBho6eVRA0cNHDVw1ECcBsKKIHLAlClTGFEMhAlQCgBUxArl4xNWTgAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "height": 20,
     "width": 20,
     "values": [
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    },
    {
     "label": "50.1 - 71.8",
     "url": "4c6085ec66b0e0a36cbcb6c63070bb86",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAAAXNSR0IB2cksfwAAAAlwSFlzAAAOxAAADsQBlSsOGwAAAEZJREFUOI1jYaAyYKGZgTk5Of8pNWzKlCmMKC6cPZuXbMNSUz8zMDDQ0sujBo4aOGrgqIE4DYQVQeSAKVOmMKIYCBOgFAAA4AkMiNZ8fFkAAAAASUVORK5CYII=",
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     "height": 20,
     "width": 20,
     "values": [
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}