added privateattr from pydantic

agents/tools/voice_tools.py

@@ -7,7 +7,7 @@ import os
 import tempfile
 import soundfile as sf
 import torch
-#from pydantic import BaseModel, PrivateAttr
+from pydantic import PrivateAttr
 from crewai.tools import BaseTool
 
 
@@ -136,9 +136,10 @@ class TranscribeAudioTool(BaseTool):
     name: str = "transcribe_audio"
     description: str = "Transcribe audio to text and detect language."
     model_config = {"arbitrary_types_allowed": True}
+    _vp: MultilingualVoiceProcessor = PrivateAttr()
     def __init__(self, config=None):
         super().__init__()
-        self.vp = MultilingualVoiceProcessor()
+        self._vp = MultilingualVoiceProcessor()
     def _run(self, audio_data: List[float], language: Optional[str] = None):
         audio_np = np.array(audio_data, dtype=np.float32)
         text, detected_lang = asyncio.run(self.vp.transcribe(audio_np, language))