docs: @EventListener
      public void logProxyTicketGrantedEvent(final CasProxyTicketGrantedEvent e) {
          val pgt = e.getProxyGrantingTicket();
          val pt = e.getProxyTicket();
          val pgtId = sanitize(pgt.getId());
          val ptId = sanitize(pt.getId());
          val principal = pgt.getAuthentication().getPrincipal().getId();
          LOGGER.debug(GRANTED_PT_MSG,
                  pt.getCreationTime(),
                  ptId,
                  pt.getExpirationPolicy().getTimeToLive(),
                  pt.getExpirationPolicy().getTimeToIdle(),
                  pgtId,
                  pt.getService().getId(),
                  pgt.getProxiedBy().getId(),
                  principal);
      }