code: def test_2_expmanager(self):
      pass_default, pass_current, uri_path = fake_experiment()
      self.assertTrue(pass_default, msg="default uri is incorrect")
      self.assertTrue(pass_current, msg="current uri is incorrect")
      shutil.rmtree(str(Path(uri_path.strip("file:")).resolve()))
  
imports: import sys
  import shutil
  import unittest
  import pytest
  from pathlib import Path
  import qlib
  from qlib.config import C
  from qlib.utils import init_instance_by_config, flatten_dict
  from qlib.workflow import R
  from qlib.workflow.record_temp import SignalRecord, SigAnaRecord, PortAnaRecord
  from qlib.tests import TestAutoData
  from qlib.tests.config import CSI300_GBDT_TASK, CSI300_BENCH
label_desc: Use image node_id 4 for calling the TestAllFlow obj's underlying member method code with example usage: obj.test_2_expmanager() without return types