Checklist

• I have checked the issues list
  for similar or identical bug reports.
• I have checked the pull requests list
  for existing proposed fixes.
• I have checked the commit log
  to find out if the bug was already fixed in the main branch.
• I have included all related issues and possible duplicate issues in this issue
  (If there are none, check this box anyway).

Related Issues and Possible Duplicates

Related Issues

• None

Possible Duplicates

• None

Description

https://docs.celeryq.dev/en/latest/userguide/signals.html#user-preload-options refers to celery.bin.base.Option which doesn't exist. There's CeleryOption, but that has a different API, the param_decls should be a sequence of str, not a plain str.

Suggestions

from celery import Celery
from celery import signals
from click import option

app = Celery()
app.user_options['preload'].add(option(
    '--monitoring', action='store_true',
    help='Enable our external monitoring utility, blahblah',
))

@signals.user_preload_options.connect
def handle_preload_options(options, **kwargs):
    if options['monitoring']:
        enable_monitoring()