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: Return whether someone is waiting for the lock to become available.
  
  Returns:
       True if the `self.tickets` queue has length greater than 0.
docstr_tok: ["Return","whether","someone","is","waiting","for","the","lock","to","become","available",".","Returns",":","True","if","the","`","self.tickets","`","queue","has","length","greater","than","0","."]
code: def is_someone_waiting(self) -> bool:
      """Return whether someone is waiting for the lock to become available.
  
      Returns:
           True if the `self.tickets` queue has length greater than 0.
      """
      return len(self.tickets) > 0
  
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 11 for calling the TicketLock obj's underlying member method code with example usage: obj.is_someone_waiting() and returns: unknown