我一直在尋找好幾個(gè)小時(shí)，但我沒(méi)有發(fā)現(xiàn)為什么這對(duì)我不起作用。這是我的代碼：@bot.command()async def ticket(ctx):  name = "tickets"  category = discord.utils.get(ctx.guild.categories, name=name)  guild = ctx.message.guild  ticket_id = randint(0, 100)  ticket_channel = await guild.create_text_channel(f"ticket-0{ticket_id}", category=category)  embed = discord.Embed(title="Tickets", description="Support will be with you shortly.\nTo close this ticket, react with :lock:.")  await ticket_channel.send(embed=embed)  await bot.add_reaction(embed, emoji=":lock:")  while True:    await bot.wait_for_reaction(emoji="\N{LOCK}", message=embed)    await bot.delete_channel(ticket_channel)這是我得到的錯(cuò)誤：Ignoring exception in command ticket:Traceback (most recent call last):  File "/home/runner/.local/share/virtualenvs/python3/lib/python3.7/site-packages/discord/ext/commands/core.py", line 83, in wrapped    ret = await coro(*args, **kwargs)  File "main.py", line 40, in ticket    await bot.add_reaction(embed, emoji=":lock:")AttributeError: 'Bot' object has no attribute 'add_reaction'任何幫助正在解決這個(gè)問(wèn)題，非常感謝。