特定if语句上的Discord.py命令冷却时间

import discord
from discord.ext import commands
import asyncio

intents = discord.Intents.default()
bot = commands.Bot(command_prefix='!', intents=intents)

# 创建一个冷却时间字典
cooldowns = {}

@bot.command(name='ping')
async def ping(ctx):
    user_id = ctx.author.id
    current_time = asyncio.get_event_loop().time()

    # 检查用户是否在冷却时间内
    if user_id in cooldowns:
        last_time, cooldown_duration = cooldowns[user_id]
        if current_time - last_time < cooldown_duration:
            remaining_time = cooldown_duration - (current_time - last_time)
            await ctx.send(f'You are on cooldown! Try again in {remaining_time:.2f} seconds.')
            return

    # 执行命令
    await ctx.send('Pong!')

    # 更新冷却时间
    cooldowns[user_id] = (current_time, 5)  # 5秒冷却时间

bot.run('YOUR_BOT_TOKEN')