return {
    test_contact: function() {
        function contact_fn(actor,reason) {
          if (actor) {
            log.console(`Got an actor: ${actor}`)
        
            send(actor, {greet: "Hello!"}, e => {
              log.console(`Got the response ${e}. Goodbye!`);
            })
          }
          else
            log.console(`Did not get an actor: ${reason}`)
        }
        
        $contact(contact_fn,
        {
          address: "localhost",
          port: 5678,
          password: "abc123"
        });
    }
}