Getting specific link when used with multigraph

[nemosmithasf]

When used with a multigraph, is there a way to see which specific link the path is using?

For example, when returning multiple paths (https://github.com/anvaka/ngraph.path/issues/6#issue-367392470), in order to know which links to invalidate for subsequent searches, we need to be able to access the links found by the pathfinder.