code: def _get_or_create_assets_dir(export_dir):
      """Return assets sub-directory, or create one if it doesn't exist."""
      assets_destination_dir = _get_assets_dir(export_dir)
  
      file_io.recursive_create_dir(assets_destination_dir)
  
      return assets_destination_dir
  
imports: import os
  import warnings
  from tensorflow.python.checkpoint import graph_view
  from tensorflow.python.client import session
  from tensorflow.python.framework import ops
  from tensorflow.python.keras import backend
  from tensorflow.python.keras import optimizer_v1
  from tensorflow.python.keras.optimizer_v2 import optimizer_v2
  from tensorflow.python.keras.saving import model_config
  from tensorflow.python.keras.saving import saving_utils
  from tensorflow.python.keras.saving import utils_v1
  from tensorflow.python.keras.utils import mode_keys
  from tensorflow.python.keras.utils.generic_utils import LazyLoader
  from tensorflow.python.lib.io import file_io
  from tensorflow.python.ops import variables
  from tensorflow.python.platform import gfile
  from tensorflow.python.platform import tf_logging
  from tensorflow.python.saved_model import builder
  from tensorflow.python.saved_model import constants
  from tensorflow.python.saved_model import save
  from tensorflow.python.training import saver
  from tensorflow.python.util import compat
  from tensorflow.python.util import nest
label_desc: Use image node_id 14 for calling a global function with example usage: _get_or_create_assets_dir(export_dir) and returns: assets_destination_dir