code: def test_1_check_connection(self):
      assert self.handler.check_connection()
  
file_path: mindsdb/mindsdb/integrations/handlers/supabase_handler/tests/test_supabase_handler.py
imports: import unittest
  from mindsdb.integrations.handlers.supabase_handler.supabase_handler import SupabaseHandler
label_desc: Use image node_id 3 for calling the SupabaseHandlerTest obj's underlying member method code with example usage: obj.test_1_check_connection() without return types