text: import discord
  from discord.ext import commands
  import os
  
  bot = commands.Bot(command_prefix=commands.when_mentioned_or("."), case_insensitive=True)
  
  class test(commands.Cog):
      def __init__(self, bot):
          self.bot = bot
  
      @commands.Cog.listener()
      async def on_message(self, message):
        if message.content.startswith("test"):
          await message.channel.send("TEST!")
  
  
  def setup(bot):
      bot.add_cog(test(bot))
  