{
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    {
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      "displayName": "Light Gray Overlay",
      "iconUri": "{RestVirtualDirectoryUrl}/Images/light_gray_canvas_with_labels__ne_usa.png",
      "exportTilesMapServiceUri": null,
      "mapServices": [
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          "id": "7"
        }
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      "extensions": [],
      "properties": []
    },
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      "id": "2",
      "displayName": "World Ocean",
      "iconUri": null,
      "exportTilesMapServiceUri": "",
      "mapServices": [
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          "id": "37"
        },
        {
          "id": "15"
        },
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          "id": "31"
        }
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      "extensions": [],
      "properties": []
    },
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      "id": "3",
      "displayName": "National Geograpic World Map",
      "iconUri": null,
      "exportTilesMapServiceUri": "",
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          "id": "20"
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      "extensions": [],
      "properties": []
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      "displayName": "USA Topo Maps",
      "iconUri": "{RestVirtualDirectoryUrl}/Images/topographic.jpg",
      "exportTilesMapServiceUri": null,
      "mapServices": [
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      "extensions": [],
      "properties": []
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      "exportTilesMapServiceUri": "",
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      "properties": []
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}