protected void copyEdge(Edge e, DirectedGraph other) {

		Vertex srcVtx = e.from();
		Vertex dstVtx = e.to();
		Edge newe = new Edge(srcVtx, dstVtx);
		add(newe);
		copyEdgeAttributeValues(newe, e, other);

	}
This method copies an edge and all object attributes from graph 
'other' into this graph.  Any implicictly created Verticies do not 
get their attribute values copied -- you must use copyVertex. 

@param e
@param other
Ghidra/Framework/Generic/src/main/java/ghidra/util/graph/DirectedGraph.java