@Override
	public DirectedGraph copy() {
		WeightedDigraph copy =
			new WeightedDigraph(this.numVertices(), this.numEdges(), this.getDefaultEdgeWeight());
		copyAll(copy);
		return copy;
	}
Get the edge weights for this graph.
Ghidra/Framework/Generic/src/main/java/ghidra/util/graph/WeightedDigraph.java