lane actor#1 "worker-a" @4:17
lane actor#2 "worker-b" @4:36
region seq#1 seq
step ask#1 ask "ask" @5:31 lane=actor#1 region=seq#1 always
step ask#2~actor#1 ask "ask" @7:30 lane=actor#1 lanes=actor#1,actor#2 source=ask#2 region=seq#1 maybe
step ask#2~actor#2 ask "ask" @7:30 lane=actor#2 lanes=actor#1,actor#2 source=ask#2 region=seq#1 maybe
edge ask#1 -> ask#2~actor#1 data maybe exact
edge ask#1 -> ask#2~actor#2 data maybe exact
sink ask#2~actor#1,ask#2~actor#2
