engine_save()
_init_saves_dir(dir)
[returns: None
saves_dir()
[returns: str or None
set_location(filepath)
[returns: None
delete_location()
[returns: None
save(entry_name, value)
[returns: None
load(entry_name, default)
[returns: str, bytearray, int, float, Vector2, Vector3, Color, or None
delete(entry_name)
[returns: None