def METHOD_NAME(self):
    g = Graph.GRG(50, 0.2)
    self.assertTrue(isinstance(g, Graph))
    g = Graph.GRG(50, 0.2, True)
    self.assertTrue(isinstance(g, Graph))
    self.assertTrue("x" in g.vertex_attributes())
    self.assertTrue("y" in g.vertex_attributes())
    self.assertTrue(isinstance(Layout(list(zip(g.vs["x"], g.vs["y"]))), Layout))