docs: def strip_encoding_cookie(filelike):
      """Generator to pull lines from a text-mode file, skipping the encoding
      cookie if it is found in the first two lines.
      """
      it = iter(filelike)
      try:
          first = next(it)
          if not cookie_comment_re.match(first):
              yield first
          second = next(it)
          if not cookie_comment_re.match(second):
              yield second
      except StopIteration:
          return
  
      for line in it:
          yield line