how can i save data with SharedPreferences with provider

Question

I am using Provider to create a bookmark page and it works correctly but I need to sore the data with SharedPreferences so I can find it again when I rebuild the app here is my provider method for storing the data

void addItemToBookmark(
  String id, String title, int counts, int pageNum) async {
final _preferances = await  .getInstance();
// final loadId = _preferances.getString('id');
// print(loadId);
final savedId = await _preferances.setString('id', id);

if (_bookmarkeTitle.containsKey(id)) {
  _bookmarkeTitle.update(
    id,
    (existingtitle) => DataModel(
      id: id,
      title: title,
      counts: counts,
      pageNum: pageNum,
    ),
  );

  _bookmarkeTitle.remove(id);
  _preferances.remove('id');
} else {
  _bookmarkeTitle.putIfAbsent(
    id,
    () => DataModel(
      id: id,
      title: title,
      counts: counts,
      pageNum: pageNum,
    ),
  );
  // print(savedId);
}
notifyListeners();

}