的问题 upload_subscribers.delay 参数只能是整数或字符串，我将无法传递 request 或者 your_file 作为函数的参数。如何修复下面的代码，使其可以在celery中作为后台任务运行？

import pandas as pd
from .models import Subscriber

def upload_subscribers(request):
    template = "audiences/upload.html"
    if request.method == "POST":
        your_file = request.FILES['file']

        if your_file.name.endswith('.xlsx'):
            df = pd.read_excel(your_file)

            for index, row in df.iterrows():
                created = Subscriber.objects.update_or_create(
                    email= row[2],
                    defaults = {
                        "first_name": row[0],
                        "last_name": row[1],
                    })

    return None