code: def __init__(self, fp):
      self.fp = fp
      self.queue = []
  
imports: import logging
  import re
  import struct
  import zlib
  from .None import Image, ImageFile, ImagePalette
  from ._binary import i8, i16be, i32be, o16be, o32be
  from ._util import py3
label_desc: Use image node_id 1 to create a new ChunkStream object from inherited base classes: object with example: obj = ChunkStream(fp)