Trait petgraph::IntoWeightedEdge 
source · pub trait IntoWeightedEdge<E> {
    type NodeId;
    // Required method
    fn into_weighted_edge(self) -> (Self::NodeId, Self::NodeId, E);
}Expand description
Convert an element like (i, j) or (i, j, w) into
a triple of source, target, edge weight.
For Graph::from_edges and GraphMap::from_edges.