arangosh> graph._addVertexCollection("shop");
arangosh> graph._addVertexCollection("customer");
arangosh> graph._addVertexCollection("pet");
arangosh> graph;
{[Graph]
"shop" : [ArangoCollection 16548, "shop" (type document, status loaded)],
"customer" : [ArangoCollection 16554, "customer" (type document, status loaded)],
"pet" : [ArangoCollection 16560, "pet" (type document, status loaded)]
}