code: def test_0_check_connection(self):
      assert self.handler.check_connection()
  
imports: import unittest
  from mindsdb.integrations.handlers.instatus_handler.instatus_handler import InstatusHandler
  from mindsdb.api.executor.data_types.response_type import RESPONSE_TYPE
  import pandas
  import os
label_desc: Use image node_id 3 for calling the InstatusHandlerTest obj's underlying member method code with example usage: obj.test_0_check_connection() without return types