def save_session_ticket(ticket):
    """
    Callback which is invoked by the TLS engine when a new session ticket
    is received.
    """
    logger.info("New session ticket received")
    if args.session_ticket:
        with open(args.session_ticket, "wb") as fp:
            pickle.dump(ticket, fp)

    Callback which is invoked by the TLS engine when a new session ticket
    is received.
    
examples/httpx_client.py