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   "layerId": 0,
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   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
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     "label": "25 MPH",
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     "label": "30 MPH",
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     "label": "40 MPH",
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     "label": "60 MPH",
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     "label": "65 MPH",
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     "label": "70 MPH",
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   "legendGroups": [
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     "heading": "APPROVED_SPEED"
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}