Fix the attached programs. Make them to work - to generate the appropriate image(s).

Pkg.add("LightGraphs") using LightGraphs g1=Graph(10, 20) println("g1: ", g1) println("edges(g1): ", edges(g1)) g2=StarDiGraph(4) println("g2: ", g2) println("edges(g2): ", edges(g2)) println("degree(g1, 1): ", degree(g1, 1)) println("neighbors(g1, 1): ", neighbors(g1, 1)) Pkg.add("Graphs") using Graphs Pkg.add("Plots") using Plots # plot(g1)