code: def test_0_check_connection(self):
      assert self.handler.check_connection()
  
file_path: mindsdb/mindsdb/integrations/handlers/materialize_handler/tests/test_materialize_handler.py
imports: import unittest
  from mindsdb.integrations.handlers.materialize_handler.materialize_handler import MaterializeHandler
  from mindsdb.integrations.libs.response import RESPONSE_TYPE
label_desc: Use image node_id 2 for calling the materializeHandlerTest obj's underlying member method code with example usage: obj.test_0_check_connection() without return types