# Python 兼容版本 3.8+ from typing import Optional class IcaStatus: @property def login(self) -> bool: ... @property def online(self) -> bool: ... @property def self_id(self) -> Optional[bool]: ... @property def nick_name(self) -> Optional[str]: ... @property def ica_version(self) -> Optional[str]: ... @property def os_info(self) -> Optional[str]: ... @property def resident_set_size(self) -> Optional[str]: ... @property def head_used(self) -> Optional[str]: ... @property def load_average(self) -> Optional[str]: ... class NewMessage: ... class ReplyMessage: ... class SendMessage: ...