Toggles sending DMs to owner.

async def _senddms(self):
        """Toggles sending DMs to owner."""
        data = self.bot.config.get("meta", {})
        tosend = data.get('send_dms', True)
        data['send_dms'] = not tosend
        await self.bot.config.put('meta', data)
        await self.bot.responses.toggle(message="Forwarding of DMs to owner has been {status}.", success=data['send_dms'])