如何在discord.py中集成on_message和sqlite3？

import discord
import sqlite3

client = discord.Client()

conn = sqlite3.connect('database.db')
cursor = conn.cursor()

cursor.execute('''CREATE TABLE IF NOT EXISTS messages
                  (id INTEGER PRIMARY KEY AUTOINCREMENT,
                  content TEXT,
                  author TEXT)''')

@client.event
async def on_message(message):
    if message.author == client.user:
        return

    content = message.content
    author = message.author.name

    # 将消息数据插入到数据库中
    cursor.execute("INSERT INTO messages (content, author) VALUES (?, ?)", (content, author))
    conn.commit()

    # 其他处理逻辑...

    await client.process_commands(message)

client.run('YOUR_DISCORD_BOT_TOKEN')