code: def push(self, cid, pos, length):
      self.queue.append((cid, pos, length))
  
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 6 for calling the ChunkStream obj's underlying member method code with example usage: obj.push(cid, pos, length) without return types