diff --git a/server/voice_changer/Beatrice/Beatrice.py b/server/voice_changer/Beatrice/Beatrice.py
index a7e9f78e..44658c7f 100644
--- a/server/voice_changer/Beatrice/Beatrice.py
+++ b/server/voice_changer/Beatrice/Beatrice.py
@@ -1,22 +1,13 @@
-from typing import Union
-import os
-import numpy as np
 from data.ModelSlot import BeatriceModelSlot
 from mods.log_control import VoiceChangaerLogger
 
 from voice_changer.utils.VoiceChangerModel import AudioInOut, VoiceChangerModel
 from voice_changer.utils.VoiceChangerParams import VoiceChangerParams
 
-from beatrice_internal_api import BeatriceInternalAPI
 
 logger = VoiceChangaerLogger.get_instance().getLogger()
 
 
-class BeatriceAPI(BeatriceInternalAPI):
-    def __init__(self, sample_rate: float = 48000.0):
-        pass
-
-
 class Beatrice(VoiceChangerModel):
     def __init__(self, params: VoiceChangerParams, slotInfo: BeatriceModelSlot):
         raise RuntimeError("not implemented")