new_contents: import discord
  from discord.ext import commands
  
  from dog import Cog
  
  
  class Wipe(Cog):
      @commands.command(aliases=['w'])
      async def wipe(self, ctx, messages: int):
          """ Wipe, wipe. """
          await ctx.message.delete()
          async for msg in ctx.channel.history(limit=messages):
              if msg.author == ctx.bot.user:
                  await msg.delete()
  
  
  def setup(bot):
      bot.add_cog(Wipe(bot))
  
subject: Add Wipe cog