class_docstr: Locking mechanism that issues tickets managing access to conversation IDs.
  
  Tickets are issued in the order in which they are requested. A detailed
  explanation of the ticket lock algorithm can be found at
  http://pages.cs.wisc.edu/~remzi/OSTEP/threads-locks.pdf#page=13
docstr: Remove `Ticket` for `ticket_number.
docstr_tok: ["Remove","`","Ticket","`","for","`","ticket_number","."]
code: def remove_ticket_for(self, ticket_number: int) -> None:
      """Remove `Ticket` for `ticket_number."""
      ticket = self._ticket_for_ticket_number(ticket_number)
      if ticket:
          self.tickets.remove(ticket)
  
imports: import json
  import logging
  from collections import deque
  import time
  from typing import Text, Optional, Union, Deque, Dict, Any
label_desc: Use image node_id 12 for calling the TicketLock obj's underlying member method code with example usage: obj.remove_ticket_for(ticket_number) without return types