code: def __init__(self, iterator):
      self.pushes = []
      self.iterator = iterator
      self.current = None
  
imports: import sys
  import contextlib
  import functools
  import re
  import os
  from jedi._compatibility import reraise
label_desc: Use image node_id 1 to create a new PushBackIterator object from inherited base classes: object with example: obj = PushBackIterator(iterator)