我如何在discord.py不一致机器人的不一致排行榜中提到人们？

import discord
from discord.ext import commands

bot = commands.Bot(command_prefix='!')

@bot.command()
async def leaderboard(ctx):
    guild = ctx.guild  # 获取当前服务器实例
    members = guild.members  # 获取服务器成员列表
    sorted_members = sorted(members, key=lambda m: m.joined_at)  # 按加入时间排序成员列表
    leaderboard = ""
    
    for i, member in enumerate(sorted_members, 1):
        leaderboard += f"{i}. {member.display_name}\n"  # 拼接排行榜
        
    await ctx.send(leaderboard)  # 发送排行榜到 Discord

bot.run('YOUR_DISCORD_BOT_TOKEN')