celery не видит задачу

main.py

from celery import Celery


app = Celery('first_step', backend='rpc://', broker='redis://localhost')

app.conf.broker_url = 'redis://localhost:6379/0'


@app.task

def summary(x, y):

    return x + y

test1.py

from first_step import summary


res = summary.delay(4, 4)

print(res.get(timeout=1))

При попытке запустить код в терминале worker отдает

> Traceback (most recent call last):
  File "D:\Mivla\venv\lib\site-packages\celery\worker\consumer\consumer.py", line 591, in on_task_received
    strategy = strategies[type_]
KeyError: 'celerist.main.summary'
[2023-04-06 23:49:45,903: ERROR/MainProcess] Received unregistered task of type 'celerist.main.summary'.
The message has been ignored and discarded.

Did you remember to import the module containing this task?
Or maybe you're using relative imports?