def submit(self, func, *args, **kwargs):
subid = uuid.uuid4().hex
job_data = joblib.delayed(func)(*args, **kwargs)
fut = Future()
fut.execid = self.execid
fut.subid = subid
self._nanny_subids[self._nanny_ind][subid] = (None, fut, job_data)
fut.set_running_or_notify_cancel()
self._nanny_ind += 1
self._nanny_ind = self._nanny_ind % self._num_nannies
return fut
