Create a graph from an isomorphism classSource:
The isomorphism class is a non-negative integer number. Graphs (with the same number of vertices) having the same isomorphism class are isomorphic and isomorphic graphs always have the same isomorphism class. Currently it can handle directed graphs with 3 or 4 vertices and undirected graphd with 3 to 6 vertices.
The number of vertices in the graph.
The isomorphism class.
Whether to create a directed graph (the default).