Discord Bot中的AFK功能

我目前正在尝试使用python(对我来说几乎是全新的东西)在Discord中创建一个机器人.我试图做一个AFK函数(类似于Dyno的函数).这是我的代码:

I'm currently trying to make a bot in Discord using python (something almost brand new for me). I was trying to make an AFK function (similar to Dyno's). This is my code:

afkdict = {}
@client.command(name = "afk", brief = "Away From Keyboard",
                description = "I'll give you the afk status and if someone pings you before you come back, I'll tell "
                              "them that you are not available. You can add your own afk message!")
async def afk(ctx, message = "They didn't leave a message!"):
    global afkdict

    if ctx.message.author in afkdict:
        afkdict.pop(ctx.message.author)
        await ctx.send('Welcome back! You are no longer afk.')

    else:
        afkdict[ctx.message.author] = message
        await ctx.send("You are now afk. Beware of the real world!")


@client.event
async def on_message(message):
    global afkdict

    for member in message.mentions:  
        if member != message.author:  
            if member in afkdict:  
                afkmsg = afkdict[member]  
                await message.channel.send(f"Oh noes! {member} is afk. {afkmsg}")
    await client.process_commands(message)

我的问题是，使用此功能的用户将是AFK，直到他们再次写入> afk 为止.我的意图是使无论用户是否使用漫游器功能，只要用户在服务器中再次交谈，该漫游器就能够删除AFK状态.我知道这是有可能的，因为其他机器人也这样做了，但是我迷失了方向，无法想办法.预先感谢！

My issue here is that the user that uses this function will be AFK until they write again >afk. My intention was to make the bot able to remove the AFK status whenever the user talked again in the server, regardless they used a bot function or not. I know it's possible because other bots do so, but I'm lost and can't think of a way to do so. Thanks in advance!