from db_utils import add_task_db, list_tasks_db, edit_task_db, delete_task_db

def add_task(user_id: int, task_name: str) -> str:
    return add_task_db(user_id, task_name)

def list_tasks(user_id: int) -> str:
    return list_tasks_db(user_id)

def edit_task(user_id: int, old_name: str, new_name: str) -> str:
    return edit_task_db(user_id, old_name, new_name)

def delete_task(user_id: int, task_name: str) -> str:
    return delete_task_db(user_id, task_name)