class CandidateOspfTopology {

  @Nonnull
  public Optional<OspfSessionStatus> getSessionStatus(
      OspfNeighborConfigId n, OspfNeighborConfigId n1) {
    return _graph.edgeValue(n, n1);
  }

  public  CandidateOspfTopology(ValueGraph<OspfNeighborConfigId, OspfSessionStatus> graph);

}