code: def test_filename(self):
      filename = "something_else.txt"
  
      with tempfile.TemporaryDirectory() as tempdir:
          handler = LogfileHandler(
              output_dir=tempdir, filename=filename
          )
          handler.attach(self.engine)
  
          self.engine.run(range(3))
  
          self.assertTrue(
              os.path.isfile(os.path.join(tempdir, filename))
          )
  
file_path: MONAI/tests/test_handler_logfile.py
imports: from __future__ import annotations
  import os
  import tempfile
  import unittest
  import torch
  from monai.utils import optional_import
  from tests.utils import SkipIfNoModule
label_desc: Use image node_id 3 for calling the TestHandlerLogfile obj's underlying member method code with example usage: obj.test_filename() without return types