docs: @ReadOperation
      public Ticket getToken(@Selector final String ticketId) {
          var ticket = (Ticket) ticketRegistry.getTicket(ticketId, AccessToken.class);
          if (ticket == null) {
              ticket = ticketRegistry.getTicket(ticketId, RefreshToken.class);
          }
          if (ticket == null) {
              LOGGER.debug("Ticket [{}] is not found", ticketId);
              return null;
          }
          if (ticket.isExpired()) {
              LOGGER.debug("Ticket [{}] is has expired", ticketId);
              return null;
          }
          return ticket;
      }