code: def test_asyncio_run_from_running_loop(self):
      async def main():
          coro = main()
          try:
              asyncio.run(coro)
          finally:
              coro.close()  # Suppress ResourceWarning
  
      with self.assertRaisesRegex(
          RuntimeError, "cannot be called from a running"
      ):
          asyncio.run(main())
  
imports: import _thread
  import asyncio
  import contextvars
  import re
  import signal
  import sys
  import threading
  import unittest
  from test.test_asyncio import utils
  from unittest import mock
  from unittest.mock import patch
label_desc: Use image node_id 5 for calling the RunTests obj's underlying member method code with example usage: obj.test_asyncio_run_from_running_loop() without return types