{
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  "displayName": "Historic",
  "iconUri": "{RestVirtualDirectoryUrl}/Images/Icons/Basemaps/HistoricalBasemaps.png",
  "exportTilesMapServiceUri": "",
  "mapServices": [
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      "id": "88"
    },
    {
      "id": "67"
    },
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      "id": "54"
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      "id": "53"
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  ],
  "extensions": [],
  "properties": []
}