def missing_join
import bendvy-ecs-core@0.1.0.4/machine_handler_bundle.bend as MachineHandlerBundleimport Base
import world.bend as W
144def missing_join(~S:Data,~C:Type,~R:Type,~E:Data,~Q:Data,allowed:Bool,value:Q,pair:W.World<S,C,R,E> & List<&2,Q>) -> W.World<S,C,R,E> & List<&2,Q>:
145 (world,rest)=pair
146 (world,missing_selected(~Q,allowed,value,rest))