code: def _generate_data():
      """Generate data examples."""
      for _ in range(NUMBER_OF_EXAMPLES):
          wav_file = fake_data_utils.get_random_wav_c1(
              duration=6, sample=8000
          )
          filename = _get_file_name()
          filepath = os.path.join(
              _output_dir(), "waves_yesno", "{}.wav".format(filename)
          )
          dirname = os.path.dirname(filepath)
          if not tf.io.gfile.exists(dirname):
              tf.io.gfile.makedirs(dirname)
          tf.io.gfile.copy(wav_file, filepath, overwrite=True)
  
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 3 for calling a global function with example usage: _generate_data() without return types