fn renew_region_lease_via_region_route(
region_route: &RegionRoute,
datanode_id: DatanodeId,
region_id: RegionId,
) -> Option<(RegionId, RegionRole)>
fn renew_region_lease_via_region_route(
region_route: &RegionRoute,
datanode_id: DatanodeId,
region_id: RegionId,
) -> Option<(RegionId, RegionRole)>