arangosh> var examples = require("org/arangodb/graph-examples/example-graph.js");
arangosh> var g = examples.loadGraph("routeplanner");
arangosh> g._shortestPath([{_id: 'germanCity/Cologne'},{_id: 'germanCity/Munich'}], 'frenchCity/Lyon',
........> {weight : 'distance'});
[ 
  [ 
    { 
      "vertices" : [ 
        "germanCity/Cologne", 
        "frenchCity/Lyon" 
      ], 
      "edges" : [ 
        "internationalHighway/1756230539" 
      ], 
      "distance" : 1 
    } 
  ] 
]