Wipe discord messages with a self bot (kinda illegal)

wipe_messages.py

import discord
from discord.ext import commands

bot = commands.Bot(">>>", self_bot=True)

@bot.event
async def on_ready():
    print("Bot presence t u r n e d on ( ͡° ͜ʖ ͡°)")

@bot.command()
async def testingmybotayaya(ctx):
    channel: discord.TextChannel = bot.get_channel(CHANNEL_ID)
    if not channel:
        return await ctx.send("Fail")
    async for message in channel.history(limit=900000):
        if message.author == bot.user:
            print("Deleted")
            await message.delete()

bot.run(ACCOUNT_TOKEN, bot=False)