code: def test_asyncio_run_set_event_loop(self):
      # See https://github.com/python/cpython/issues/93896
  
      async def main():
          await asyncio.sleep(0)
          return 42
  
      policy = asyncio.get_event_loop_policy()
      policy.set_event_loop = mock.Mock()
      asyncio.run(main())
      self.assertTrue(policy.set_event_loop.called)
  
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 9 for calling the RunTests obj's underlying member method code with example usage: obj.test_asyncio_run_set_event_loop() and returns: int