getToken method
retrieves access token and other information from the designated store.
Implementation
@override
Future<OAuthToken?> getToken() async {
SharedPreferences preferences = await SharedPreferences.getInstance();
var jsonToken = preferences.getString(tokenKey);
if (jsonToken == null) {
return await _migrateOldToken();
}
return OAuthToken.fromJson(jsonDecode(jsonToken));
}