code: def _init_states(self):
      self.speaker_embeddings = None
      self.speaker_embeddings_projected = None
  
imports: import copy
  from abc import ABC, abstractmethod
  import torch
  from torch import nn
  from TTS.tts.utils.generic_utils import sequence_mask
label_desc: Use image node_id 2 for calling the TacotronAbstract obj's underlying member method code with example usage: obj._init_states() without return types