toJson method
Implementation
Map toJson(){
Map _result = {};
if (overallStatus != null) _result.addAll({"overallStatus": overallStatus});
if (optical != null) _result.addAll({"optical": optical});
if (detailsOptical != null) _result.addAll({"detailsOptical": detailsOptical});
if (rfid != null) _result.addAll({"rfid": rfid});
if (detailsRFID != null) _result.addAll({"detailsRFID": detailsRFID});
if (portrait != null) _result.addAll({"portrait": portrait});
if (stopList != null) _result.addAll({"stopList": stopList});
return _result;
}