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     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAABIElEQVQ4je2TLWuFUByHf6BVmyCGBUEQbMZTvIM1m1FYcfgRbAtm/QwzGjWI7YZZThT8AoZZBKPYx5FduIx7z1RWBnvgcN6f8/oX8cuI/8ILT4SQEzhQSjMA/ZY71NM0ffM874EnLIriOYqiFwBnrpAQEjCZrus8H9iYsixPlFK+8Jp5ntdckqSb9VuI9zqqqkLXdWs5CAIsy4IsyzAMA5Ik2S8cxxGO46BpGsRxDNM0oSgKVFVd5YIg7BO6rou6rmEYBth92raNtm1XGWvr+36fUNM0hGG4lvM8hyzL8H3/7lF3hR7vEQ7H8lap+L2BUvrOPu31x7YsC9M0relCURQfX9Hy4w7PURQ9lmUZgANbeGvoMXpK6SsOIB6Z9LeFn9n6ZvkIT/hWAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Blowoff"
     ]
    },
    {
     "label": "Shutoff",
     "url": "8f8b6283f79f8ec0d5889ff94120bc73",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAA/ElEQVQ4je2U0RGDIAyG8a4rMI9hCOchzMMQxnlcovdH0iIntfb60IfmDglEPpIQuLkvy+0PbIX1wxzRi4jz3kvOOWF4NYcMUIzKUik6iQiFEJJt+A6Q53mOy7K4YRj2BmYFwx5C0KkzIOFnInJoCBNNDUTmpeqIgHnLShc4TZPCHvQChdTh25g3YN/DdV2ftAoCaL1RlYKIZHeBR4t6sI9uipQc9sKWMt8FMnOqayWltFvcAr33cuohIFiIvvYAutlsnLcifwnUHI/jqI62HtXwUtxy6iGgKFqrx6MIkJorN8WggrpEKRm4gFR1B3J2yngINKT2NHvy+w/sHTcYkPgIo/BnAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Shutoff"
     ]
    },
    {
     "label": "<all other values>",
     "url": "f064e8500b9a6d54ab630a99b58f21ad",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAABFElEQVQ4je2UMYqFMBCGfzAew0K8gZ2NURA7T6Jgb5PkBF7Ak9ioWAg23kCw9QZ2jwlPeSwKuizb7E4zZAi/38w/keGHg/0L/soM5Tu3X/JjQSmlFEVRYBgGzPMslmWhovr4yG1B2TSNcF0XnufBNE2s6wrf90H1MAz1nbuCAZEFQYC6rrFtG8ZxRN/3iKIIVVURpSD8u4LgnOscxzGmadJ0aZoiyzIYhgEhhJ7HGSU7IyS64wJjyPNct16W5cWEHr4UIk6S5Di3bXvpNjupSaWUoLb2oFnatg3LsvS567pnhFJKxTnXxlCQuOM4B917dW4TUkhaDXKT2t2FlVLf3kMKMnKn2F26FLpryq3nho/4g//DF/kqaJwRuFmUAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "1",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": "Valve Type"
    },
    {
     "id": "1",
     "heading": ""
    }
   ]
  }
 ]
}