Presence changing command

presence.py

    async def c_presence(self, option=None):
        """
        Changes your presence on Discord

        {prefix}presence <status>
        
        Leave blank to reset presence to online.
        """
        afk = False
        
        if option is None:
            option = 'online'
        else:
            option = option.lower()
        
        if any(s == option for s in [e.value for e in discord.Status]):
            if option == 'idle':
                afk = True
            await self.bot.change_presence(status=option, afk=afk)
            return Response(":white_check_mark: Set presence to {}!".format(option))
        else:
            raise InvalidUsage()