template dijkstraShortestPaths(GraphT, VertexDescriptorT, VisitorT = NullDijkstraVisitor!GraphT, WeightMapT = real[VertexDescriptorT], PredecessorMapT = VertexDescriptorT[VertexDescriptorT], alias sumFunction = (a, b) => a + b)
void
dijkstraShortestPaths