code: def set_random_test_dir():
      """Pick a random GCS directory under --test_dir_base, set as --model_dir."""
      path = os.path.join(FLAGS.test_dir_base, uuid.uuid4().hex)
      FLAGS.set_default("model_dir", path)
  
file_path: tensorflow-upstream/tensorflow/python/tpu/tpu_test_wrapper.py
imports: import ast
  import importlib
  import os
  import sys
  import uuid
  from tensorflow.python.platform import flags
  from tensorflow.python.util import tf_inspect
label_desc: Use image node_id 2 for calling a global function with example usage: set_random_test_dir() without return types