{"rasterFunctionInfos": [
 {
  "name": "Impervious Surface 2017",
  "description": "Renderer to change the image display to gray for the impervious areas and transparent for the pervious.",
  "help": "Use this renderer to apply symbology to the image to display the impervious areas as gray and make the pervious areas transparent.",
  "functionType": 0,
  "thumbnail": ""
 },
 {
  "name": "None",
  "description": "",
  "help": "",
  "functionType": 0,
  "thumbnail": ""
 }
]}