from typing import Optional class ORMConfig: "Configuração global do ORM" _timezone: str = "Etc/UTC" _configured: bool = False @classmethod def configure(cls, timezone : str = "Etc/UTC" ): "Configura o ORM" cls._timezone = timezone cls._configured = True @classmethod def get_timezone(cls) -> str: "Retorna a timezone configurada" return cls._timezone __all__ = ["ORMConfig"]