hb_set_get_user_data (hb_set_t           *set,
		      hb_user_data_key_t *key)
{
  return hb_object_get_user_data (set, key);
}
hb_set_get_user_data (hb_set_t           *set,
		      hb_user_data_key_t *key)
{
  return hb_object_get_user_data (set, key);
}