public function handleDefaultReply(): ?SmsMessage 	{ 		if (!($body = setting('sms_default_reply'))) { 			return null; 		}  		return SmsMessage::create([ 			'provider' => $this->provider, 			'from' => $this->to, 			'to' => $this->from, 			'body' => $body, 		]); 	}