def retained_join
import bendvy-ecs-core@0.1.0.4/event_publication.bend as EventPublicationimport Base
84def retained_join(~A:Data,~B:Data,+record:Publication<A,B>,rest:List<&2,Publication<A,B>>) -> List<&2,Publication<A,B>>:
85 retained_head(~A,~B,nonempty_record(~A,~B,record),record,rest)