fun <N : Node> visualize(graph: Graph<N>, output: File, options: DotOptions, dot: Command = DOT, prettify: (Node) -> String = Node::toPrettyString): Unitfun <N : Node> visualize(graph: Graph<N>, output: File, format: String = "png", dot: Command = DOT, prettify: (Node) -> String = Node::toPrettyString): Unit