code: def test_get_aux_input(self):
      aux_input = {
          "speaker_ids": None,
          "style_wav": None,
          "d_vectors": None,
          "language_ids": None,
      }
      args = VitsArgs()
      model = Vits(args)
      aux_out = model.get_aux_input(aux_input)
  
      speaker_id = torch.randint(10, (1,))
      language_id = torch.randint(10, (1,))
      d_vector = torch.rand(1, 128)
      aux_input = {
          "speaker_ids": speaker_id,
          "style_wav": None,
          "d_vectors": d_vector,
          "language_ids": language_id,
      }
      aux_out = model.get_aux_input(aux_input)
      self.assertEqual(aux_out["speaker_ids"].shape, speaker_id.shape)
      self.assertEqual(aux_out["language_ids"].shape, language_id.shape)
      self.assertEqual(
          aux_out["d_vectors"].shape,
          d_vector.unsqueeze(0).transpose(2, 1).shape,
      )
  
imports: import copy
  import os
  import unittest
  import torch
  from trainer.logging.tensorboard_logger import TensorboardLogger
  from tests import assertHasAttr, assertHasNotAttr, get_tests_data_path, get_tests_input_path, get_tests_output_path
  from TTS.config import load_config
  from TTS.encoder.utils.generic_utils import setup_encoder_model
  from TTS.tts.configs.vits_config import VitsConfig
  from TTS.tts.models.vits import Vits, VitsArgs, VitsAudioConfig, amp_to_db, db_to_amp, load_audio, spec_to_mel, wav_to_mel, wav_to_spec
  from TTS.tts.utils.speakers import SpeakerManager
label_desc: Use image node_id 5 for calling the TestVits obj's underlying member method code with example usage: obj.test_get_aux_input() without return types