return AsPair() < other.AsPair();
    }
  };

  using EdgeInfoMap = std::map<absl::string_view, std::map<EdgeInfo, int64_t>>;

  EdgeInfoMap incoming_edge_infos;
  EdgeInfoMap outgoing_edge_infos;

  std::set<absl::string_view> cluster_names_to_print;

  for (const Edge* e : graph_->edges()) {
    const Node* from = e->src();
    std::optional<absl::string_view> from_cluster_name =