- world->collections= collection;
-
- world->_create= (test_callback_create_fn*)world_create;
- world->_destroy= (test_callback_destroy_fn*)world_destroy;
-
- world->item._startup= (test_callback_fn*)world_test_startup;
- world->item.set_flush((test_callback_fn*)world_flush);
- world->_on_error= (test_callback_error_fn*)world_on_error;