code: def setUpClass(cls):
      connection_data = {
          "url": os.getenv("CONFLUENCE_URL"),
          "username": os.getenv("CONFLUENCE_USERNAME"),
          "password": os.getenv("CONFLUENCE_PASSWORD"),
      }
      cls.handler = ConfluenceHandler(
          name="confluence_handler", connection_data=connection_data
      )
  
file_path: mindsdb/mindsdb/integrations/handlers/confluence_handler/tests/test_confluence_handler.py
imports: import os
  import unittest
  from mindsdb.api.executor.data_types.response_type import RESPONSE_TYPE
  from mindsdb.integrations.handlers.confluence_handler.confluence_handler import ConfluenceHandler
label_desc: Use image node_id 1 for calling the ConfluenceHandlerTest obj's underlying member method code with example usage: obj.setUpClass(cls) without return types