code: def can_decode(
      uri: Union[BinaryIO, str, os.PathLike], format: Optional[str]
  ) -> bool:
      raise NotImplementedError
  
file_path: audio/src/torchaudio/_backend/backend.py
imports: import os
  from abc import ABC, abstractmethod
  from typing import BinaryIO, Optional, Tuple, Union
  from torch import Tensor
  from torchaudio.io import CodecConfig
  from .common import AudioMetaData
label_desc: Use image node_id 4 for calling the Backend obj's underlying member method code with example usage: obj.can_decode(uri, format) without return types