CPLIB_GRAPH_GRAPHDEBUG = 1

proc dump_graph(G: UnWeightedDirectedGraph or UnWeightedDirectedStaticGraph;
                output: File = stdout)

proc dump_graph(G: UnWeightedUnDirectedGraph or UnWeightedUnDirectedStaticGraph;
                output: File = stdout)

proc dump_graph(G: WeightedDirectedGraph or WeightedDirectedStaticGraph;
                output: File = stdout)

proc dump_graph(G: WeightedUnDirectedGraph or WeightedUnDirectedStaticGraph;
                output: File = stdout)