code: def setUpClass(cls):
      cls.kwargs = {
          "connection_data": {
              "host": "localhost",
              "port": "3306",
              "user": "root",
              "password": "root",
              "database": "test",
              "ssl": False,
          }
      }
      cls.handler = SupabaseHandler(
          "test_supabase_handler", **cls.kwargs
      )
  
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 1 for calling the SupabaseHandlerTest obj's underlying member method code with example usage: obj.setUpClass(cls) without return types