code: def fixture_for_temp_file():
      yield
      for fn in temp_files:
          if os.path.exists(fn):
              os.remove(fn)
  
imports: import os
  import io
  import pytest
  import numpy
  import nnabla
  import nnabla.functions
  import nnabla.parametric_functions
  from collections import OrderedDict
  from nnabla.testing import assert_allclose
  from nnabla.core.modules import ConvBn, ResUnit
  from helper import ModuleCreator, forward_variable_and_check_equal, create_temp_with_dir
label_desc: Use image node_id 1 for calling a global function with example usage: fixture_for_temp_file() without return types