fix syntax

assistant_bot/speech.py

@@ -2,7 +2,7 @@ import sys
 import threading
 import warnings
 from pathlib import Path
-from typing import Any, Callable, Protocol
+from typing import Any, Callable, Protocol, cast
 
 
 class SpeechRecognitionError(RuntimeError):
@@ -21,9 +21,9 @@ def load_whisper_model_class() -> Any:
     missing = object()
     loaded_torch = sys.modules.get("torch", missing)
     if loaded_torch is missing:
-        sys.modules["torch"] = None
+        sys.modules["torch"] = cast(Any, None)
     try:
-        with warnings.catch_warnings():
+        with warnings.catch_warnings(record=False):
             warnings.filterwarnings(
                 "ignore",
                 message="pkg_resources is deprecated as an API.*",