void get_graph(const s_xbt_graph_t* graph, std::map<std::string, xbt_node_t, std::less<>>* nodes,
std::map<std::string, xbt_edge_t, std::less<>>* edges) override;
void get_graph(const s_xbt_graph_t* graph, std::map<std::string, xbt_node_t, std::less<>>* nodes,
std::map<std::string, xbt_edge_t, std::less<>>* edges) override;