Function not deploying

import json
import pandas as pd
from appwrite.client import Client
from appwrite.services.databases import Database

def init_client():
    # Initialize the Appwrite client
    client = Client()
    client.set_endpoint("https://cloud.appwrite.io/v1")
    client.set_project("646769a1263324aecec0")
    client.set_key("API_KEY")

    return client

def main():

    client = init_client()
    database = Database(client)


    database.create_document("646a552f4564180c1531", {
        'company_name': "Utopia",
        'job_title': "Software Engineer",
        'about_company': "Utopia is a software company that builds software for the future",
        'location': "Remote",
        'skills_required': "Python, Java, C++",
        'job_responsibilities': "Build software for the future",
        'job_requirements': "Must have 5 years of experience",
        'logo': "https://www.utopia.com/logo.png"
    }, read=['*'])

if __name__ == "__main__":
    main()```

Error:

def main(req, res):
  payload = req.payload or 'No payload provided. Add custom data when executing function.'

  secretKey = req.variables.get(
    'api_key,
    'SECRET_KEY variable not found. You can set it in Function settings.'
  )

  randomNumber = random.random()

  # trigger = req.variables['APPWRITE_FUNCTION_TRIGGER']

  return res.json({
    'message': 'Hello from Appwrite!',
    'payload': payload,
    'secretKey': secretKey,
    'Number': 123,
  })```