public function toArray($request): array 	{ 		return [ 			'id' => $this->getKey(), 			'user_id' => $this->user_id, 			'device_id' => $this->device_id, 			'app_version' => $this->app_version, 			'device_type' => $this->getOneSignalDeviceType(), 			'device_model' => $this->device_model, 			'device_os' => $this->device_os, 			'timezone' => $this->timezone, 			'created_at' => formatTimestamp($this->created_at), 			'updated_at' => formatTimestamp($this->updated_at), 		]; 	}