toJson method

Implementation

Map toJson(){
  Map result = {};

  if (imageType != null) result.addAll({"imageType": imageType});
  if (detectAll != null) result.addAll({"detectAll": detectAll});
  if (bitmap != null) result.addAll({"bitmap": bitmap});
  if (identifier != null) result.addAll({"identifier": identifier});

  return result;
}