(discord.py)如何使我的不一致机器人重新发送邮件附件？

import discord
import smtplib
from email.mime.multipart import MIMEMultipart
from email.mime.text import MIMEText
from email.mime.base import MIMEBase
from email import encoders

client = discord.Client()

def send_email(sender_email, sender_password, receiver_email, subject, message, attachment_path):
    # 创建邮件对象
    msg = MIMEMultipart()
    msg['From'] = sender_email
    msg['To'] = receiver_email
    msg['Subject'] = subject

    # 添加邮件正文
    msg.attach(MIMEText(message, 'plain'))

    # 添加附件
    attachment = open(attachment_path, 'rb')
    part = MIMEBase('application', 'octet-stream')
    part.set_payload((attachment).read())
    encoders.encode_base64(part)
    part.add_header('Content-Disposition', "attachment; filename= %s" % attachment_path)
    msg.attach(part)

    # 发送邮件
    server = smtplib.SMTP('smtp.gmail.com', 587)
    server.starttls()
    server.login(sender_email, sender_password)
    server.send_message(msg)
    server.quit()

@client.event
async def on_message(message):
    if message.content.startswith('!send_email'):
        # 解析命令参数
        args = message.content.split(' ')
        sender_email = args[1]
        sender_password = args[2]
        receiver_email = args[3]
        subject = args[4]
        message_body = args[5]
        attachment_path = args[6]

        # 发送邮件
        send_email(sender_email, sender_password, receiver_email, subject, message_body, attachment_path)
        await message.channel.send('邮件已发送！')

client.run('YOUR_DISCORD_BOT_TOKEN')