code: def test_3_get_columns(self):
      columns = self.handler.get_columns("id")
      assert columns.type is not RESPONSE_TYPE.ERROR
  
file_path: mindsdb/mindsdb/integrations/handlers/google_calendar_handler/tests/test_google_calendar_handler.py
imports: import unittest
  from mindsdb.integrations.handlers.google_calendar_handler.google_calendar_handler import GoogleCalendarHandler
  from mindsdb.api.executor.data_types.response_type import RESPONSE_TYPE
label_desc: Use image node_id 5 for calling the GoogleCalendarHandlerTest obj's underlying member method code with example usage: obj.test_3_get_columns() without return types