A python decorator to debounce async functions

async_debounce.py

import asyncio
from functools import wraps

def async_debounce(wait):
    def decorator(func):
        task = None

        @wraps(func)
        async def debounced(*args, **kwargs):
            nonlocal task

            async def call_func():
                await asyncio.sleep(wait)
                await func(*args, **kwargs)

            if task and not task.done():
                task.cancel()

            task = asyncio.create_task(call_func())
            return task

        return debounced

    return decorator

def async_throttle(wait):
    def decorator(func):
        task: asyncio.Task | None = None
        @wraps(func)
        async def throttle(*args, **kwargs):
            nonlocal task
            if task and not task.done():
                return
            async def call_func():
                await func(*args, **kwargs)
                await asyncio.sleep(wait)
            task = asyncio.create_task(call_func())
            return task
        return throttle
    return decorator