saveUserInfo method
Implementation
Future<void> saveUserInfo(
String firstName,
String familyName,
String phonenumber,
String accessToken,
) async {
SharedPreferences preferences = await SharedPreferences.getInstance();
await Future.wait([
preferences.setString(first_name, firstName),
preferences.setString(family_name, familyName),
preferences.setString(preferred_username, phonenumber),
preferences.setString(access_Token, accessToken),
]);
}