docstr: Read checksum.  Used if the C module is not present
docstr_tok: ["Read","checksum",".","Used","if","the","C","module","is","not","present"]
code: def crc_skip(self, cid, data):
      """Read checksum.  Used if the C module is not present"""
  
      self.fp.read(4)
  
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 9 for calling the ChunkStream obj's underlying member method code with example usage: obj.crc_skip(cid, data) without return types