code: def _fixture_on_path(self, filename):
      pkg_file = resources.files(self.root).joinpath(filename)
      file = self.resources.enter_context(resources.as_file(pkg_file))
      assert file.name.startswith("example"), file.name
      sys.path.insert(0, str(file))
      self.resources.callback(sys.path.pop, 0)
  
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 ZipFixtures obj's underlying member method code with example usage: obj._fixture_on_path(filename) without return types