arangosh> var examples = require("org/arangodb/graph-examples/example-graph.js");
arangosh> var g = examples.loadGraph("routeplanner");
arangosh> g._shortestPath({}, {}, {weight : 'distance', endVertexCollectionRestriction : 'frenchCity',
........> startVertexCollectionRestriction : 'germanCity'});
[ 
  [ 
    { 
      "vertices" : [ 
        "germanCity/Berlin", 
        "frenchCity/Paris" 
      ], 
      "edges" : [ 
        "internationalHighway/1221809564" 
      ], 
      "distance" : 1 
    }, 
    { 
      "vertices" : [ 
        "germanCity/Berlin", 
        "frenchCity/Lyon" 
      ], 
      "edges" : [ 
        "internationalHighway/1221612956" 
      ], 
      "distance" : 1 
    }, 
    { 
      "vertices" : [ 
        "germanCity/Hamburg", 
        "frenchCity/Paris" 
      ], 
      "edges" : [ 
        "internationalHighway/1222006172" 
      ], 
      "distance" : 1 
    }, 
    { 
      "vertices" : [ 
        "germanCity/Hamburg", 
        "frenchCity/Lyon" 
      ], 
      "edges" : [ 
        "internationalHighway/1222202780" 
      ], 
      "distance" : 1 
    }, 
    { 
      "vertices" : [ 
        "germanCity/Cologne", 
        "frenchCity/Paris" 
      ], 
      "edges" : [ 
        "internationalHighway/1222595996" 
      ], 
      "distance" : 1 
    }, 
    { 
      "vertices" : [ 
        "germanCity/Cologne", 
        "frenchCity/Lyon" 
      ], 
      "edges" : [ 
        "internationalHighway/1222399388" 
      ], 
      "distance" : 1 
    } 
  ] 
]