from typing import Protocol from voice_changer.utils.VoiceChangerModel import AudioInOut class PitchExtractor(Protocol): def extract(self, audio: AudioInOut, sr: int, block_size: int, model_sr: int, pitch, f0_up_key, silence_front=0): ... def getPitchExtractorInfo(self): return { "pitchExtractorType": self.pitchExtractorType, }