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     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAOklEQVQ4jWNhoDJgoZmB/8GIfMAIRrR0IbUAC9VMgoJRAykHLFQwAwWMGkg5YBnBBjJCyzOqGUgtAABgfwJTnasaYgAAAABJRU5ErkJggg==",
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   ],
   "legendGroups": [
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