TypeError: main() missing 1 required positional argument: 'res'

Cloud function is failing.
May i know what is this error when function is being deployed.
Thanks

Your function may not be formatted right. How did you make it? What is the code?

import json
from appwrite.client import Client
from appwrite.services.databases import Databases
from appwrite.id import ID
import os

def main(context):
client = Client()
(client
.set_endpoint('https://cloud.appwrite.io/v1')
.set_project(os.environ['PROJECT_ID'])
.set_key(os.environ['API_KEY'])
)
print("hello")

like this sir