arangosh> var examples = require("@arangodb/graph-examples/example-graph.js");
arangosh> var graph = examples.loadGraph("social");
arangosh> graph.male.save({neym: "Jon", _key: "john"});
{
"_id" : "male/john",
"_key" : "john",
"_rev" : "_ZXF6eLu--C"
}
arangosh> graph.male.replace("male/john", {name: "John"});
{
"_id" : "male/john",
"_key" : "john",
"_rev" : "_ZXF6eLu--F",
"_oldRev" : "_ZXF6eLu--C"
}