code: def _get_file_name():
      """Returns file name of audio file."""
      # Example of audio file name: 0_0_1_1_0_1_0_0.wav
      file_name = str(random.randint(0, 1))
      for _ in range(
          7
      ):  # Range is 7 as the first label is added on initialization
          file_name += "_"
          file_name += str(random.randint(0, 1))
      return file_name
  
file_path: datasets/tensorflow_datasets/audio/yesno/dummy_data_generation.py
imports: import os
  import random
  from absl import app
  from absl import flags
  from tensorflow_datasets.core import utils
  from tensorflow_datasets.core.utils.lazy_imports_utils import tensorflow
  from tensorflow_datasets.testing import fake_data_utils
label_desc: Use image node_id 2 for calling a global function with example usage: _get_file_name() and returns: file_name