docstr: Test dumping the results to csv file in a local StringIO object.
docstr_tok: ["Test","dumping","the","results","to","csv","file","in","a","local","StringIO","object","."]
code: def test_csv_dump(self):
      """Test dumping the results to csv file in a local StringIO object."""
      with WorkflowProfiler() as wp:
          self.scale(self.test_image)
  
      sio = StringIO()
      wp.dump_csv(sio)
      self.assertGreater(sio.tell(), 0)
  
imports: from __future__ import annotations
  import datetime
  import os
  import unittest
  from io import StringIO
  import torch
  import monai.transforms
  from monai.data import Dataset, ThreadDataLoader
  from monai.utils import first, optional_import
  from monai.utils.enums import CommonKeys
  from monai.utils.profiling import ProfileHandler, ProfileResult, WorkflowProfiler
  from tests.utils import SkipIfNoModule
label_desc: Use image node_id 10 for calling the TestWorkflowProfiler obj's underlying member method code with example usage: obj.test_csv_dump() without return types