engine_save()_init_saves_dir(dir) [returns: Nonesaves_dir() [returns: str or Noneset_location(filepath) [returns: Nonedelete_location() [returns: Nonesave(entry_name, value) [returns: Noneload(entry_name, default) [returns: str, bytearray, int, float, Vector2, Vector3, Color, or Nonedelete(entry_name) [returns: None