infoWindowtoJson function
Implementation
Map<String, dynamic> infoWindowtoJson(InfoWindow infoWindow) {
final Map<String, dynamic> json = <String, dynamic>{};
addToJson(json, _Param.title, infoWindow.title);
addToJson(json, _Param.snippet, infoWindow.snippet);
addToJson(json, _Param.anchor, offsetToJson(infoWindow.anchor));
return json;
}