code: def setUpClass(cls):
      cls.kwargs = {
          "host": "localhost",
          "port": "5432",
          "user": "mindsdb",
          "password": "mindsdb",
          "database": "test",
          "ssl": False,
      }
      cls.handler = OpenGaussHandler(
          "test_opengauss_handler", **cls.kwargs
      )
  
file_path: mindsdb/mindsdb/integrations/handlers/opengauss_handler/tests/test_opengauss_handler.py
imports: import unittest
  import pandas
  from mindsdb.integrations.handlers.opengauss_handler.opengauss_handler import OpenGaussHandler
label_desc: Use image node_id 1 for calling the OpenGaussHandlerTest obj's underlying member method code with example usage: obj.setUpClass(cls) without return types