基于边的数组过滤遍历Arangodb图

db._createVertexCollection("vertices");
db._createEdgeCollection("edges");

db._createGraph("myGraph", {
  edgeDefinitions: [
    {
      collection: "edges",
      from: ["vertices"],
      to: ["vertices"]
    }
  ]
});

db.vertices.save({ _key: "user1", name: "Alice" });
db.vertices.save({ _key: "user2", name: "Bob" });
db.vertices.save({ _key: "user3", name: "Charlie" });

db.edges.save({ _key: "edge1", _from: "vertices/user1", _to: "vertices/user2", type: "friend" });
db.edges.save({ _key: "edge2", _from: "vertices/user2", _to: "vertices/user3", type: "family" });
db.edges.save({ _key: "edge3", _from: "vertices/user1", _to: "vertices/user3", type: "friend" });

FOR v, e, p IN 1..2 OUTBOUND 'vertices/user1' GRAPH 'myGraph'
  FILTER e.type == 'friend'
  RETURN { vertex: v, edge: e, path: p }

FOR v, e, p IN 1..2 OUTBOUND 'vertices/user1' GRAPH 'myGraph'
  FILTER e.type == 'friend'
  RETURN { vertex: v, edge: e, path: p }