docstr: Expands audio paths for the given sample.
docstr_tok: ["Expands","audio","paths","for","the","given","sample","."]
code: def expand_path(self, sample: Dict) -> Dict:
      """Expands audio paths for the given sample."""
      return dict(
          sample,
          **{
              f"{instrument}_path": tf.strings.join(
                  (self._audio_path, sample[f"{instrument}_path"]),
                  SEPARATOR,
              )
              for instrument in self._instruments
          },
      )
  
imports: import os
  import time
  from os.path import exists
  from os.path import sep
  from typing import Any, Dict, List, Optional, Tuple
  import tensorflow
  from .audio.adapter import AudioAdapter
  from .audio.convertor import db_uint_spectrogram_to_gain, spectrogram_to_db_uint
  from .audio.spectrogram import compute_spectrogram_tf, random_pitch_shift, random_time_stretch
  from .utils.logging import logger
  from .utils.tensor import check_tensor_shape, dataset_from_csv, set_tensor_shape, sync_apply
label_desc: Use image node_id 3 for calling the DatasetBuilder obj's underlying member method code with example usage: obj.expand_path(sample) and returns: dict