class Prefser {

  public void clear() {
    if (size() == 0) {
      return;
    }

    editor.clear().apply();
  }

  public  Prefser(@NonNull Context context);
  public  Prefser(@NonNull Context context, @NonNull JsonConverter jsonConverter);
  public  Prefser(@NonNull SharedPreferences sharedPreferences);
  @SuppressLint("CommitPrefEdits") public  Prefser(@NonNull SharedPreferences sharedPreferences,
      @NonNull JsonConverter jsonConverter);

}