<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 async def _execute(self, fn, *args, **kwargs):
 """Queue a function with the given arguments for execution."""

        function = partial(fn, *args, **kwargs)
        future = self._loop.create_future()

        self._tx.put_nowait((future, function))

        return await future