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   "layerName": "Slope",
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   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "0 - 5 %",
     "url": "71e9ad13fb884805cff838c05c9f1e71",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAG0lEQVQ4jWNhoDJgGTVw1MBRA0cNHDVwpBoIABArAFHmDwDcAAAAAElFTkSuQmCC",
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     "groupId": "0",
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    {
     "label": "5 - 10 %",
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     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
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    },
    {
     "label": "10 - 15 %",
     "url": "f76f9992a02168110d5644270f5ff6fc",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAMUlEQVQ4jWNhoDJgoZmBR28z/KfEIGtVBkYUA6kFRg0cNXDUwFED6WwgrDyjmoHUAgApuwOywvLGgQAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
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     "label": "15 - 20 %",
     "url": "cf7f1650c7904fbc6a8b10ea9a2350df",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAMUlEQVQ4jWNhoDJgoZmB/28y/KfEIEZ1BkYUA6kFRg0cNXDUwFED6WwgrDyjmoHUAgAWQQN6khi3ygAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
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    },
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     "label": "20 - 25 %",
     "url": "3766cac3e088c977f2ef7c1e7f026afa",
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     "contentType": "image/png",
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     "height": 20,
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    },
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     "label": "> 25 %",
     "url": "6cf57e29fb5c88f427fe6577c701f8ce",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAMUlEQVQ4jWNhoDJgoZmB/9UY/lNiEOMtBkYUA6kFRg0cNXDUwFED6WwgrDyjmoHUAgBTyQQtOLPywgAAAABJRU5ErkJggg==",
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