To'g'ri! TreeNode sinfining ta'rifi to'g'ri ko'rinadi, lekin `@dataclass ` yozuv va `Optional ` turi import qilinmagan. Keling, buni tuzatamiz va `invertTree ` funksiyasini yozamiz. Avval kerakli modullarni import qilamiz: ``python from dataclasses import dataclass from typing import Optional ``` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` 
spam fails_task lang_mismatch pii not_appropriate hate_speech sexual_content quality toxicity humor helpfulness creativity violence