pub(super) type ReachabilityEventRegion = <(Duration, (OwnedRegionOpinion<Vec<usize>>, OwnedRegionOpinion<Vec<(usize, usize, bool, Option<Timestamp>, Diff)>>)) as MzRegionPreference>::Region;pub(super) type ReachabilityEventRegion = <(Duration, (OwnedRegionOpinion<Vec<usize>>, OwnedRegionOpinion<Vec<(usize, usize, bool, Option<Timestamp>, Diff)>>)) as MzRegionPreference>::Region;