code: def _callMaybeAsync(self, func, /, *args, **kwargs):
      assert (
          self._asyncioRunner is not None
      ), "asyncio runner is not initialized"
      if inspect.iscoroutinefunction(func):
          return self._asyncioRunner.run(
              func(*args, **kwargs),
              context=self._asyncioTestContext,
          )
      else:
          return self._asyncioTestContext.run(func, *args, **kwargs)
  
file_path: cpython/Lib/unittest/async_case.py
imports: import asyncio
  import contextvars
  import inspect
  import warnings
  from .case import TestCase
label_desc: Use image node_id 8 for calling the IsolatedAsyncioTestCase obj's underlying member method code with example usage: obj._callMaybeAsync() and returns: self, self