code: def _create_zip_files():
      """Saves png and label using name index."""
      if not os.path.exists(_output_dir()):
          os.makedirs(_output_dir())
  
      images_out_path = os.path.join(
          _output_dir(), "data_object_image_2.zip"
      )
      with zipfile.ZipFile(images_out_path, "w") as image_zip:
          for i in range(NUM_IMAGES):
              png = fake_data_utils.get_random_png(HEIGHT, WIDTH)
              image_zip.write(
                  png,
                  os.path.join(
                      "training",
                      "image_2",
                      "image_{:06d}.png".format(i),
                  ),
              )
  
      label_out_path = os.path.join(
          _output_dir(), "data_object_label_2.zip"
      )
      with zipfile.ZipFile(label_out_path, "w") as label_zip:
          for i in range(NUM_IMAGES):
              annotation = _get_annotations()
              label = _get_label_file(annotation)
              label_zip.write(
                  label,
                  os.path.join(
                      "training",
                      "label_2",
                      "label_{:06d}.txt".format(i),
                  ),
              )
  
      devkit_out_path = os.path.join(_output_dir(), "devkit_object.zip")
      with zipfile.ZipFile(devkit_out_path, "w") as devkit_zip:
          train_rand, train_mapping = _get_mapping_files()
          devkit_zip.write(
              train_rand, os.path.join("mapping", "train_rand.txt")
          )
          devkit_zip.write(
              train_mapping,
              os.path.join("mapping", "train_mapping.txt"),
          )
  
imports: import os
  import tempfile
  import zipfile
  from absl import app
  from absl import flags
  import numpy
  from tensorflow_datasets.core import utils
  from tensorflow_datasets.core.utils.lazy_imports_utils import tensorflow
  from tensorflow_datasets.object_detection import kitti
  from tensorflow_datasets.testing import fake_data_utils
label_desc: Use image node_id 10 for calling a global function with example usage: _create_zip_files() without return types