增加环绕侦察场景适配

backend_service/venv/lib/python3.13/site-packages/anyio/streams/file.py

@@ -1,5 +1,11 @@
 from __future__ import annotations
 
+__all__ = (
+    "FileReadStream",
+    "FileStreamAttribute",
+    "FileWriteStream",
+)
+
 from collections.abc import Callable, Mapping
 from io import SEEK_SET, UnsupportedOperation
 from os import PathLike