code: def save(
      uri: Union[BinaryIO, str, os.PathLike],
      src: Tensor,
      sample_rate: int,
      channels_first: bool = True,
      format: Optional[str] = None,
      encoding: Optional[str] = None,
      bits_per_sample: Optional[int] = None,
      buffer_size: int = 4096,
      compression: Optional[Union[CodecConfig, float, int]] = None,
  ) -> None:
      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 3 for calling the Backend obj's underlying member method code with example usage: obj.save(uri, src, sample_rate, channels_first, format, encoding, bits_per_sample, buffer_size, compression) without return types