code: def device(self) -> torch.device:
      return self._float_tensor.device
  
file_path: textlesslib/textless/vocoders/hifigan/vocoder.py
imports: import torch
  import torch.nn
  import numpy
  from .generator import CodeGenerator
  import json
  from typing import Union
  from pathlib import Path
  from textless.checkpoint_manager import CHECKPOINT_MANAGER
label_desc: Use image node_id 3 for calling the CodeHiFiGANVocoder obj's underlying member method code with example usage: obj.device() and returns: self