def required_field
import bendvy-ecs-core@0.1.0.3/check.bend as Checkimport Base
import world.bend as W
82def required_field(~S:Data,~Store:Type,~R:Type,~E:Data,~Ops:Type -> Type,plan:Plan<S,Store,R,E,Ops>) -> W.World<S,Store,R,E> -> W.World<S,Store,R,E> & List<&2,String>:
83 match plan:
84 case Plan{required,_}:required