code: def test_7_select_query(self):
      query = "SELECT * FROM dt_test WHERE 'id'='a'"
      result = self.handler.native_query(query)
  
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 8 for calling the OpenGaussHandlerTest obj's underlying member method code with example usage: obj.test_7_select_query() without return types