code: def unicode_filename(self):
      return FS_NONASCII or self.skip(
          "File system does not support non-ascii."
      )
  
imports: import os
  import sys
  import copy
  import json
  import shutil
  import pathlib
  import tempfile
  import textwrap
  import functools
  import contextlib
  from test.support.os_helper import FS_NONASCII
  from test.support import requires_zlib
  from .None import _path
  from ._path import FilesSpec
label_desc: Use image node_id 1 for calling the FileBuilder obj's underlying member method code with example usage: obj.unicode_filename() and returns: unknown