code: def setUp(self):
      if has_ignite:
          # set up engine
          def _train_func(engine, batch):
              return torch.tensor(0.0)
  
          self.engine = Engine(_train_func)
  
          logger = self.engine.logger
  
          # remove all other handlers to prevent output
          while logger is not None:
              del logger.handlers[:]
              logger = logger.parent
  
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 1 for calling the TestHandlerLogfile obj's underlying member method code with example usage: obj.setUp() and returns: torch