class_docstr: Variant of Queue that retrieves most recently added entries first.
code: def _put(self, item):
      self.queue.append(item)
  
imports: import threading
  import types
  from collections import deque
  from heapq import heappush, heappop
  from time import monotonic
label_desc: Use image node_id 3 for calling the LifoQueue obj's underlying member method code with example usage: obj._put(item) without return types