code: def test_asyncio_run_return(self):
      async def main():
          await asyncio.sleep(0)
          return 42
  
      self.assertEqual(asyncio.run(main()), 42)
  
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 1 for calling the RunTests obj's underlying member method code with example usage: obj.test_asyncio_run_return() and returns: int