class_docstr: Wrapper for bytesio object that treats either CR or LF as end of line.
  This class is no longer used internally, but kept for backwards compatibility.
code: def seek(self, offset, whence=io.SEEK_SET):
      self.char = None
      self.fp.seek(offset, whence)
  
imports: import io
  import os
  import re
  import subprocess
  import sys
  import tempfile
  from .None import Image, ImageFile
  from ._binary import i32le
  from ._deprecate import deprecate
label_desc: Use image node_id 2 for calling the PSFile obj's underlying member method code with example usage: obj.seek(offset, whence) without return types