from cloud_db import * def get_user(user_id:str): return get_item("users",{"user_id":user_id}) def put_billing_info(user_id:str,billing_info:dict=None,payment_method:dict=None): if not billing_info and not payment_method: return {"Error":"No billing info or payment method provided"} return put_item("users",{"user_id":user_id,"billing_info":billing_info,"payment_method":payment_method})