I want to check the number of messages sent by a specific user when sec is 0. If the number of messages sent by the user is 0, it tries to delete the channel.

```
        while (sec != 0 ):
            sec = sec-1
            await asyncio.sleep(1)
            print(sec)
            if sec == 30:
                await a.send(f'{message.author.mention}')
            if sec == 0:
                await a.delete()
                await message.author.send('f')

```