toJson method
Implementation
Map toJson(){
Map result = {};
if (sourceType != null) result.addAll({"sourceType": sourceType});
if (fieldType != null) result.addAll({"fieldType": fieldType});
if (lightType != null) result.addAll({"lightType": lightType});
if (pageIndex != null) result.addAll({"pageIndex": pageIndex});
if (fieldName != null) result.addAll({"fieldName": fieldName});
if (lightName != null) result.addAll({"lightName": lightName});
if (value != null) result.addAll({"value": value});
if (fieldRect != null) result.addAll({"fieldRect": fieldRect});
return result;
}