如何在#频道中显示某一角色的会员？(使用discord.py)

import discord
from discord.ext import commands

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

@bot.command()
async def show_members(ctx, role_name):
    role = discord.utils.get(ctx.guild.roles, name=role_name)  # 获取指定名称的角色
    if role is None:
        await ctx.send("找不到该角色！")
        return

    members = role.members  # 获取该角色的会员列表
    if len(members) == 0:
        await ctx.send("该角色下没有会员！")
        return

    member_names = [member.name for member in members]  # 获取会员的用户名列表
    member_list = '\n'.join(member_names)  # 将用户名列表转换为字符串

    await ctx.send(f"角色 {role.name} 的会员列表：\n{member_list}")

bot.run('YOUR_BOT_TOKEN')