code: def serveInBackground(port, serverName, prefix='/status/'):
    
    import flask, threading
    from wsgiref.simple_server import make_server
    app = flask.Flask(__name__)
    registerStatsHandler(app, serverName, prefix)
    server = threading.Thread(target=make_server('', port, app).serve_forever)
    server.daemon = True
    server.start()
    return server
docs: Convenience function: spawn a background server thread that will
    serve HTTP requests to get the status. Returns the thread.