9CghddlmZmZddlmZddlmZmZm Z e dZ GddeZdS))AnyCallable)BackgroundTasks) AnnotatedDoc ParamSpecPczeZdZdZdeeeefedfdej dej ddffd Z xZ S) raG A collection of background tasks that will be called after a response has been sent to the client. Read more about it in the [FastAPI docs for Background Tasks](https://fastapi.tiangolo.com/tutorial/background-tasks/). ## Example ```python from fastapi import BackgroundTasks, FastAPI app = FastAPI() def write_notification(email: str, message=""): with open("log.txt", mode="w") as email_file: content = f"notification for {email}: {message}" email_file.write(content) @app.post("/send-notification/{email}") async def send_notification(email: str, background_tasks: BackgroundTasks): background_tasks.add_task(write_notification, email, message="some notification") return {"message": "Notification sent in the background"} ``` funcz The function to call after the response is sent. It can be a regular `def` function or an `async def` function. argskwargsreturnNc>tj|g|Ri|S)z Add a function to be called in the background after the response is sent. Read more about it in the [FastAPI docs for Background Tasks](https://fastapi.tiangolo.com/tutorial/background-tasks/). )superadd_task)selfr r r __class__s D/var/www/api/venv/lib/python3.11/site-packages/fastapi/background.pyrzBackgroundTasks.add_task&s,* uww6t666v666) __name__ __module__ __qualname____doc__rrr rrr r r __classcell__)rs@rrr s87 QV  C     7v7(7 7777777777rrN) typingrrstarlette.backgroundrStarletteBackgroundTaskstyping_extensionsrrrr rrr s LLLLLL7777777777 IcNN2727272727.2727272727r