code: def test_timeout_exception(self):
      with self.assertRaises(TimeoutError):
          asyncio.run(timeout_dummy_coroutine_fn(0.3))
  
imports: import asyncio
  import os
  import shutil
  import tempfile
  import unittest
  import time
  from unittest.mock import patch
  from fiftyone.operators.decorators import coroutine_timeout, dir_state
label_desc: Use image node_id 2 for calling the TestCoroutineTimeoutDecorator obj's underlying member method code with example usage: obj.test_timeout_exception() without return types