@bot.command()
async def unban(ctx, *, member):
banned_users = await ctx.guild.bans()
try:
member_name, member_discriminator = member.split(“#”)
except:
await ctx.send(“:x: unbanned: User#0001”)
return

for ban_entry in banned_users:
    user = ban_entry.user

    if (user.name, user.discriminator) == (member_name, member_discriminator):
        await ctx.guild.unban(user)
    else:
        await ctx.send(":hmmmm i think this user is unbaned or he isn't banned")
        return

I asked the chat gpt but he was unable to help