class_docstr: Tests Conversations utilities.
code: def tearDown(self):
      # remove conversations
      shutil.rmtree(self.datapath)
  
file_path: ParlAI/tests/test_conversations.py
imports: import os
  import shutil
  import unittest
  from parlai.utils.conversations import Conversations
  import tempfile
label_desc: Use image node_id 3 for calling the TestConversations obj's underlying member method code with example usage: obj.tearDown() without return types