code: def setUp(self):
      super().setUp()
      self.tmpdir = tempfile.mkdtemp()
  
      # Use counter to tell test cases apart
      TestFileStoreHandlerOp.testCounter += 1
  
file_path: pytorch/caffe2/distributed/file_store_handler_op_test.py
imports: import errno
  import os
  import tempfile
  import shutil
  from caffe2.distributed.python import StoreHandlerTimeoutError
  from caffe2.distributed.store_ops_test_util import StoreOpsTests
  from caffe2.python import core, workspace, dyndep
  from caffe2.python.test_util import TestCase
label_desc: Use image node_id 1 for calling the TestFileStoreHandlerOp obj's underlying member method code with example usage: obj.setUp() without return types