code: def setUpClass(cls):
      cls.kwargs = {
          "connection_data": {
              "api_token": "secret_KHTlOzUN5fIwVlb1euOpBa4lwcJA7jEALoBGDRrlATx"
          }
      }
      cls.handler = NotionHandler("test_notion_handler", **cls.kwargs)
      cls.db_table = NotionDatabaseTable(cls.handler)
      cls.pages_table = NotionPagesTable(cls.handler)
      cls.blocks_table = NotionBlocksTable(cls.handler)
      cls.comments_table = NotionCommentsTable(cls.handler)
  
file_path: mindsdb/mindsdb/integrations/handlers/notion_handler/tests/test_notion_handler.py
imports: import unittest
  from mindsdb_sql import parse_sql
  from mindsdb.integrations.handlers.notion_handler.notion_handler import NotionHandler
  from mindsdb.integrations.handlers.notion_handler.notion_table import NotionDatabaseTable, NotionBlocksTable, NotionCommentsTable, NotionPagesTable
label_desc: Use image node_id 1 for calling the NotionHandlerTest obj's underlying member method code with example usage: obj.setUpClass(cls) without return types