-server.config.make_world_helpers.pos_test_func = pos_test
-server.config.make_world_helpers.world_makable_func = world_makable
-server.config.make_world_helpers.make_map_func = make_map
+server.config.make_world_helpers.pos_test = pos_test
+server.config.make_world_helpers.world_makable = world_makable
+server.config.make_world_helpers.make_map = make_map