docs: async def unplonk(self, ctx, *, member: discord.Member):
          """Unbans a user from using the bot.
  
          To use this command you must have the Manage Server permission
          or have a Bot Admin role.
          """
  
          plonks = self.config.get('plonks', {})
          guild_id = ctx.message.server.id
          db = plonks.get(guild_id, [])
  
          try:
              db.remove(member.id)
          except ValueError:
              await self.bot.responses.failure(message='%s is not banned from using the bot in this server.' % member)
          else:
              plonks[guild_id] = db
              await self.config.put('plonks', plonks)
              await self.bot.responses.success(message='%s has been unbanned from using the bot in this server.' % member)